SR20DET: Quick,Easy,And Reliable Way For 320-350whp!!!

[NYS13SLIDER]

Im in the process of trying to reach the 320-350whp level with my sr20det. im looking for quick spool and at the same time having the broadest powerband possible for drifting. Im looking to use the smallest turbo possible(maybe even a turbo that is within its efficiency range at 400whp). This is not a big budget build by no means but i am willing to spend the money where its needed most. I figure it would be interesting for people to post up their personal setups that are at,or about the same horsepower i am referring to. And also what people would do differently to their setups if they could and would do it over again. Im hoping this thread will benefit many and not only myself. A little personal info on my current engine setup(its not much but maybe you can fill in the blanks for me as to what i need to achieve my power goals). So i have a redtop sr20det,all stock internals,stock t25 turbo,Walbro 255 fuel pump,full 3" Blitz exhaust with test pipe,Greddy front mount intercooler,Greddy airinx foam fiter,Blitz blow off valve(venting to atmosphere),lightweight pulleys,newly installed Isis intake manifold(don't hate on me too much),Spec stage 4 clutch and lightweight flywheel,boost controller set at 12 pounds of boost(or at least thats what the boost gauge shows),Isis aluminum radiator and dual flex-a-lite electric fan assembly,not yet installed Isis fuel pressure regulator, no ecu tuning whatsoever and stock maf. Oh and what would someones guess on how much power the car is currently producing as its never been on the dyno...Feel free to post and for anyone questioning some of the not so "baller" parts on the car just know that im keeping a tight budget on this car as my other build (700whp street S2000)has got a little out of hand.Thanks for looking.

[sidewaysil80]

instead of making this post you should have searched...i'll partially feed you...search gt28r, gt2871r, gt28r, search differnt types of cams as well. all should eventually yield you the results you are looking for.

[NYS13SLIDER]

I have searched a bunch of different keywords and im getting bits and pieces of info which is great, but i figured many people on zilvia using the sr20det are probably in the horsepower range i am looking for and many others are probably trying to achieve about the same power for a fun, reliable street/drift car so having proven setups as well as different ways to reach this power level would be interesting and beneficial to many, and in one thread for comparison purposes as well. Thanks for your post sidewaysil80.

[sidewaysil80]

okkkkkkkkkk fineeeeeeeeeeeeeeeeeeee...in order of importance:
-ditch the isis...i love the brand too but that and the greddy manifold both suck. you gain very little up top and steals alot from down low. not worth it.
-next recirculate...the car will run alot better

parts...
-get an ehaust manifold
-turbo outlet pipe/down pipe
-full intake
-bigger injectors (480cc or 555cc max for your goal)
-some type of engine management...piggy back or reflash is all you need. dont let these people tell you need haltech for a stockish bolt on setup. i have seen 100000x 300-320 cars on safc's, emanages, and reflashes. is it preferred no...stand alone or flash is the way to go...but will it work and be safe YES! (I have an s15 with bolt ons and i use an safcII but i'm stock everything except psi, exhaust side, front mount, intake)
-s15 spec r turbo or a disco potato...some people are going to try and sway you to a gt2871r...i personally didn't like it. it was pretty laggy but i had shitty cams and that shitbox greddy manifold...so thats on you. but for your numbers and goal i think a s15 or disco potato will be all you need (it will be SUPER responsive and fun...no spool time)
-boost controller to run 15psi (thats basically the limit for the turbos i suggested)
-in addtion i would strongly suggest head studs and a metal head gasket (stay away from cometic i've heard horror stories) for that kind of psi. 12 psi is about the max i would run on a stock gasket/head bolts.

[nismoman]

It's not complicated....
This is the short and simple no BS list of what you need
GT28rs(quickest spooling true 330 to 350 hp turbo you can find)
550cc injectors at least( 740's wouldn't hurt)
Z32maf
Enthalpy or JWT ecu tune
15 to 18psi
Metal headgasket optional, most people who say the stock headgasket can't hold this boost haven't tried it. I'm running a cometic since I did a rebuild, works great. head and block surface prep is key.

[NYS13SLIDER]

thanks sideways and nismoman,your posts are much appreciated! Anyone else?

[NYS13SLIDER]

Oh i forgot i have the 3" downpipe and im going to be doing the turbo manifold and turbo outlet pipe at the same time im replacing the turbo. Im thinking of doing the Isis turbo upgrade package from Enjuku since i have a decent discount from them. It includes the isis manifold,turbo outlet pipe,oil lines, and a turbo rated up to 380hp. Ive read some people saying the Isis turbo hits harder and pulls longer than an s15 turbo. So that and a z32 maf, Enthalpy tune,and bigger injectors would probably be enough? i was thinking about also doing rocker arm stoppers,Jwt cams(the mildest set),metal headgasket and maybe even arp headstuds? what do you guys think? Anyone else?

[lazysk8er2]

where in ny are you from?

[NYS13SLIDER]

Queens. why?

[codyace]

Start Reading:

http://zilvia.net/f/tech-talk/124925-gt2871-users-sr-motor.html?highlight=2871r+owners

2871r thread.

[S14DB]

http://zilvia.net/f/tech-talk/124925-gt2871-users-sr-motor.html

[codyace]

are you stalking me??? ;)

[yingiang]

u can get 3-350 with a s15 turbo

[nismoman]

u can get 3-350 with a s15 turbo

No you cant, show me a dyno chart.....

[NYS13SLIDER]

haha codyace...let me know if you have any questions about anything 240sx or sr20 related...lol
joking!!

[NYS13SLIDER]

id like to see that dyno chart of an s15 turbo making 350hp as well.

[niscur29]

My setup:
redtop rebuilt with forged internals (mahle/eagle) cometic/arp studs
stock head with hks 272 step 2 and required springs etc with new rockers
peakboost topmount setup
precsion 50 trim .64 hotside w/tial ewg
nismo 740s
denso supra fuel pump tomei fpr
greddy fmic/ssqv
ls2 coilpacks
aem ems

Sure I'm forgetting others but this should put out about 375-400whp with good spool and decent powerband. A little more then you are looking for but being rebuilt it will be reliable and capable if much more should I desire to go there.

[NYS13SLIDER]

so i installed the isis intake manifold as i stated before,im contemplating between the s3 and s4 cams from Jwt. what would you guys recommend? again im planning on being in the 350 whp range.

Thanks for posting niscur29!

[310R]

S3 cams from jwt

[yingiang]

there was a local shop..actually 2 that had many cars come out of their shop with cams and s15 turbo and made like 300...idk i aint searching for that stuff. i made 210/170 with s15 turbo at 5psi with no internal upgrades. add 10 psi and cams and i could of made it easily.

[S14DB]

there was a local shop..actually 2 that had many cars come out of their shop with cams and s15 turbo and made like 300...idk i aint searching for that stuff. i made 210/170 with s15 turbo at 5psi with no internal upgrades. add 10 psi and cams and i could of made it easily.

I can/have seen 300-320. 350, no way.

[nismoman]

I can/have seen 300-320. 350, no way.

Excactly...And 320 is really pushing that turbo to it's limits

[yingiang]

sorry, didnt know saying 3-350 (ESTIMATE) would fire everyone up
carry on

[S14DB]

sorry, didnt know saying 3-350 (ESTIMATE) would fire everyone up
carry on

The OP wants a solid 350hp. A S15 T28 would leave him 30-50hp short.

[NYS13SLIDER]

More people need to post their quick spooling 350hp setups for comparison!!!!

[codyace]

Lets also not forget guys (and obviously some know already) but running a smaller turbo at a higher boost level is 'more stressful' than a larger turbo running less boost and making a few more HP. Keep that in mind.

With that said, I like a turbo maybe one size larger than a HP goal. SUre a 28RS will make 350 whp, but a 2871r will do it with less stress and worry.


sorry, didnt know saying 3-350 (ESTIMATE) would fire everyone up
carry on

"Oh I was wrong" would save some face right about now.

[steve shadows]

Cody ace has the perfect platform to make 330 whp on a dyno dynamics!

I honestly hat havin a bazillion threads like this but look at the 2871 thread

I suggest the larger turbine housing 2871R, a haltech and a great tuner. Without good tuning it doesnt matter what insane parts you have its a paper weight

[yingiang]

"Oh I was wrong" would save some face right about now.

Im not wrong. Good day.

[S14DB]

so i installed the isis intake manifold as i stated before,im contemplating between the s3 and s4 cams from Jwt. what would you guys recommend? again im planning on being in the 350 whp range.

Thanks for posting niscur29!

there was a local shop..actually 2 that had many cars come out of their shop with cams and s15 turbo and made like 300...idk i aint searching for that stuff. i made 210/170 with s15 turbo at 5psi with no internal upgrades. add 10 psi and cams and i could of made it easily.sorry, didnt know saying 3-350 (ESTIMATE) would fire everyone up
carry on
Im not wrong. Good day.

You are just changing reality to suit yourself. Still wrong.

[eazye2000]

It's not complicated....
This is the short and simple no BS list of what you need
GT28rs(quickest spooling true 330 to 350 hp turbo you can find)
550cc injectors at least( 740's wouldn't hurt)
Z32maf
Enthalpy or JWT ecu tune
15 to 18psi
Metal headgasket optional, most people who say the stock headgasket can't hold this boost haven't tried it. I'm running a cometic since I did a rebuild, works great. head and block surface prep is key.
Yep, GT2860RS was my favorite of the 3 GT series turbo's I had. (GT2860RS, GT2871R, GT3076R, all .86ar) Efficient for what you want to do. They just got laggier and laggier the bigger I went...
I also had a Z32 MAF, 740cc Deatschwerks injectors, and a DIY ECU Tune/Burn. Ran a cometic as well, so no new news there.
This is what I used, and worked for a rock solid 350whp, with headroom for E85.

This is personal experience, so take it as you will. The only thing I would change, is 'maybe' get one size smaller AR on the turbine if you wanted crazy spool...

[codyace]

Cody ace has the perfect platform to make 330 whp on a dyno dynamics!

I honestly hat havin a bazillion threads like this but look at the 2871 thread

I suggest the larger turbine housing 2871R, a haltech and a great tuner. Without good tuning it doesnt matter what insane parts you have its a paper weight

ANd I've not seen a trap speed out of California in the 2 years of your 'magical 400 hp dynojet' cars. Just saying, if you want to play fair, lets go with trap speeds. 120, full weight, .64 housing, bullshit run, first time not on street tires.. 11.6! If you've got an gutted s13 trapping 122-124, well damn...that's the same power as I make! It better trap 125+ to impress me in a car with 400 less lbs.

[codyace]

Im not wrong. Good day.

Post up 2 or more magical 350 whp s15 turbo, and I"ll paypal you 5 bucks. No questions asked.

Moderators, feel free to ban me if I don't.


Good day.

Edit: GT28RS (Granted FWD, but more compression) dyno at 17/18psi
http://www.codyace.com/albums/Dynos/raydyno.sized.jpg

I'd love to see a 28r/s15 combo do that. Yea yea, we know it dies uptop, bullshit lowport intakes.



Edit: Non race gas included. I could claimk my car makes 450 whp with race gas and boost too.

[steve shadows]

ANd I've not seen a trap speed out of California in the 2 years of your 'magical 400 hp dynojet' cars. Just saying, if you want to play fair, lets go with trap speeds. 120, full weight, .64 housing, bullshit run, first time not on street tires.. 11.6! If you've got an gutted s13 trapping 122-124, well damn...that's the same power as I make! It better trap 125+ to impress me in a car with 400 less lbs.

Haha I knew I would piss you off...

All of my cars trap 120+ usually but then again Drag Racing is dead out here...we have to rely on running Z06s and beating the living crap out of them on the fwy more often instead ;)

for new members we and Cody and best e friends ever but like to bash each other for different reasons...like an abusive gay relationship

[codyace]

You are just changing reality to suit yourself. Still wrong.

Beware, internet experts are against us.

[codyace]

Haha I knew I would piss you off...

All of my cars trap 120+ usually but then again Drag Racing is dead out here...we have to rely on running Z06s and beating the living crap out of them on the fwy more often instead ;)

for new members we and Cody and best e friends ever but like to bash each other for different reasons...like an abusive gay relationship


Yes Steve and I would totally get drunk on Potato odka, and smash blondes together all night. No ball touching though, last timke didn't go well. Sigh, old Zilvia :/

And F you for knowing how to get my excited ;)

FWIW: My goals to hit a DD next spring. I'm working on a somewhat local hookup to make a 'dyno comparison' between a DJ, a DD, and MD :D

Double Edit: I get a kick out of how our musical taste is so damn similar too.

[yingiang]

Post up 2 or more magical 350 whp s15 turbo, and I"ll paypal you 5 bucks. No questions asked.

Moderators, feel free to ban me if I don't.


Good day.


PM'd
Am I am still not wrong and stick to my original post of estimated 3-350.

edit:
should of said 3-330 so we wouldnt of cluttered this thread

[nismoman]

Maybe this is my fault that this thread turned into a crapfest. After all I did ask for proof of this magical 350hp t28r. Here are the facts:
The t28r is a good solid 300hp turbo super fast spooling
Gt28rs easy 330 without sweating very fast spooling
Gt2871r 64ar solid 350+ while still spooling fast

I totally agree with codyace and why he chose a 2871. I chose the rs because my car is intended to be a fast really fun mostly street car. I was more concerned with fastest possible spool while going over 300hp than hitting over 350hp

[yabeet]

Am I am still not wrong and stick to my original post of estimated 3-350.



You are wrong.


edit:
should of said 3-330 so we wouldnt of cluttered this thread

You just admitted it :rofl:

[yingiang]

You are wrong.

You just admitted it :rofl:

dude i am not wrong. i initially said 3-350...ive already pmed people regarding this issue so you dont need to stick your head in something you are not apart of.

if i was wrong i would of said I WAS WRONG but 3-350 is NOT WRONG
i gave too big of a estimate but the hp still falls between those numbers
so i simply stated i should of put 3-330 so all this bs wouldnt of happened.
are you that retarded you dont understand ?

[codyace]

dude i am not wrong. i initially said 3-350...ive already pmed people regarding this issue so you dont need to stick your head in something you are not apart of.

if i was wrong i would of said I WAS WRONG but 3-350 is NOT WRONG
i gave too big of a estimate but the hp still falls between those numbers
so i simply stated i should of put 3-330 so all this bs wouldnt of happened.
are you that retarded you dont understand ?

I thought you weren't going to clutter this.

Again, you'd save face just admitting you made an error, and moving on. Not a single person here is going to loose any sleep or worry behind tomorrow about what you said unless you keep trying to defend the comment. It's like saying Nostradamus is always right, even despite extreme generalizations.

Just keep on truckin man, don't get upset over it.

[yingiang]

Just keep on truckin man, don't get upset over it.

I'm not upset and it was not an error. My statement stands.
You can achieve 3-350hp with a S15 turbo.
Otherwise prove me wrong.

[NYS13SLIDER]

The things that we stress! Does no one else have a 350whp setup that they would like to post? I created this thread hoping to get 15-20 different combinations. Maybe im exaggerating but i wasnt expecting it to turn into 15 ways to bash someone!! Back to the topic please!!! Thanks

[codyace]

I'm not upset and it was not an error. My statement stands.
You can achieve 3-350hp with a S15 turbo.
Otherwise prove me wrong.
[third grade]
"My dad can beat up your dad"
[/third grade]

Dude, do you really need the trophy of correctness? You're an idiot. It's like saying a Vulcan 3.0 is good for 100whp to 800 whp. No one can prove you wrong. YOu came in here with your 'knowledge' and got proven wrong. It's like the classic battle of 'experience' vs 'forum fuck face'. What have you done? You can't even keep your own lies straight over your own car. You're not impressing anyone here, nor are you going to ever. Again how many cars have you personally put together and dynoed? 1? 0?. Be honest as I'll easily post your PM about 'not knowing'. I think a few people got that same PM, we all laughed at you.

SO yes, you are right, it will make between 300-350 whp. More like 290-315. But since you've got some hard on preventing you from dropping this, I'll feed your 2 dollar ego. You remind me of Farva.."I got you good fucker".

I hate making posts like "I hope this thread gets locked" but I hope it does. Surely the OP should have done more research, but jackjobs like you really make the experience here less.

Signal > Noise. Happy New Year.

[Toi]

Bah, this was informative, especially since I now know the S15 is a waste of money for my goals. Thanks for the info folks, OP thanks for making the thread, I normally just search till my eyes bleed........

Back to the 2871 thread that was linked on here!

[Datenshi]

Amen Cody. :P


As to the OP, there aren't really '15-20' ways to get to what your asking lol. Everyone has pretty much given the best option for what your looking for. There are slight differences you could do, but its all preference when it comes down to cams and tuning and shit. It'd personally go with a GT2871, low boost you'd be right where you want to be with the option of having more flexibility if you want it. I wouldn't suggest a S15 turbo because.. well.. maxing out the turbo for the increased response isn't worth it to me.

Good luck with whatever you choose.

[codyace]

Amen Cody. :P


As to the OP, there aren't really '15-20' ways to get to what your asking lol. Everyone has pretty much given the best option for what your looking for. There are slight differences you could do, but its all preference when it comes down to cams and tuning and shit. It'd personally go with a GT2871, low boost you'd be right where you want to be with the option of having more flexibility if you want it. I wouldn't suggest a S15 turbo because.. well.. maxing out the turbo for the increased response isn't worth it to me.

Good luck with whatever you choose.

Totally the truth...the 2871 .64 really spools almost on par with the 28RS .86...I mean it's negliable really to me...and with that said, you now have a compressor wheel capable of a broader and larger powerband.

Honestly the more I think about the SR20 ant the turbo 'guide' I really think that it should honestly go (in relation to Garrett based turbos, once you get into the JDM ones and the BW stuff, it's really hard to be 'exact' as they have way to many 'options'

225ish whp - Stock turbos of either type. Sure that t28 may make close to 300, but it's really pumping hot air at that point

300 whp - S15 (if you want to keep small, and affordable)

300-400 - 2871r (gets you great response, and power that is close enough to the 30r's that I'd gladly take the faster response than the lag and slightly more peak up...this step really is much more involved as it takes a bit of 'extra' stuff to make this power reliable

400-500 - 35r (honestly it doesn't spool that much later than most of the larger 30r varients)...may as well deal with a smidge slower turbo for a much bigger top end here. Obviously if you're putting a big charger on it, you know the other stuff it needs too.

Sure that may seem like a simple list, but it's probably an easy way to look at the HP goal, the turbo to go with, and then know what associated mods to add.

[NYS13SLIDER]

Part of the topic i wanted the thread to cover was also the "other little things" people are doing to achieve and maintain an efficient and non over boosted smaller turbo 350whp setup. Lets just say,for arguments sake, we all agree that the turbo we are using to make this 350whp is the 2871r .64, what supporting mods are we doing to achieve a broad quick spooling powerband while also keeping the stock block together and reliable?
On the power end of things for Example: Cams,Intake manifold,turbo manifold etc.. And for the reliability end for Example: arp headstuds, metal headgasket etc. Everyone using this turbo or "knowledge" regarding the matter please post.

[sidewaysil80]

dude, scroll to the top of the page and click the "search" button...hmmm i dunno, maybe, just maybe check the gt2871r thread? people (including myself) have been pretty helpful...you can do the rest...you got pointed in the right direction now search the rest yourself.

[codyace]

Part of the topic i wanted the thread to cover was also the "other little things" people are doing to achieve and maintain an efficient and non over boosted smaller turbo 350whp setup. Lets just say,for arguments sake, we all agree that the turbo we are using to make this 350whp is the 2871r .64, what supporting mods are we doing to achieve a broad quick spooling powerband while also keeping the stock block together and reliable?
On the power end of things for Example: Cams,Intake manifold,turbo manifold etc.. And for the reliability end for Example: arp headstuds, metal headgasket etc. Everyone using this turbo or "knowledge" regarding the matter please post.

The 2871r thread really covers all of those bases.

While some may agree or disagree with their 'need', it's generally observed that to maintain a reliable 350-400 whp car, that a metal headgasket and headstuds are added. Cams as well, such as the Jim Wolf S3's (no need for spring change FTW), or the HKS 264's. Intake manifold would be a suggestion if you are looking at upper 300 range, as it helps maintain power to the end of the curve. While some think it hurts response, I'd disagree for the most part...it's not enough of a 'low end' to give up such greater top end power.

FWIW: My setup in the 2871r thread makes 290/300 whp at 10 psi, 410 a 20psi...

[yingiang]

not wrong, thanks ! you are just over exaggerating my post so you feel the need to be ultimately correct although theres nothing that you have said to prove me wrong.
i dont see how you keep claiming i am a liar because i havent lied about shit

if your going to debate then debate...but i see the quickess resort for you would to just do personal attacks
its okay. you can take the cake you big cry baby

[nismoman]

Please just STFU.....

[codyace]

Please just STFU.....

He's gotta get that last word in. This is Zilvia, real talk.

[yingiang]

Please just STFU.....

Don't cryyyyy:blah:

[S14DB]

not wrong, thanks ! you are just over exaggerating my post so you feel the need to be ultimately correct although theres nothing that you have said to prove me wrong.We do deductive reasoning here not inductive.
i dont see how you keep claiming i am a liar because i havent lied about shit

You said in the thread it was some shop cars that accomplished this. Then you PM us saying it was you car that you sold.

[Datenshi]

People talk shit, we all know that here. I vote ignore and maybe it'll deflate his ego a bit. Next he'll be saying that he put a B18C in his 240sx and it made 400HP to all wheels.

[nismoman]

I sprinkled fairy dust and unicorn tears on my t25 and made 400hp

[Okinawandrifter87]

I hope this thread gets locked already. Im tired or seeing this guy being "right all the time" instead of trying to help the op with his OP even though its not a new topic. Not the point though. Lock.

[NYS13SLIDER]

I have been reading the 2871r thread,believe you me. i was trying to start a thread where people with their setups would just post them up and explain what they are happy with and what they would do different in list form. Thanks

[jspaeth]

I have been reading the 2871r thread,believe you me. i was trying to start a thread where people with their setups would just post them up and explain what they are happy with and what they would do different in list form. Thanks

STOCK bottom end
APexi 1.1 mm MHG
ARP Headstuds
GT2871R 0.64 A/R, 52 trim (slightly less output than the 56 trim version)
Brian Crower valves springs and Ti retainers
Greddy Rocker Arm Stoppers
HKS Step 2 264/264 Cams (12 mm Intake and 11.5 mm Exhaust lift)
Greddy Turbo elbow
Greddy VSPL FMIC and intercooler piping
Stock throttle body
Greddy EVO TT 3" exhaust from catback
3" Test Pipe

Tomei 740 cc/min injectors
Stock fuel rail
Walbro fuel pump with stock fuel lines
300ZX fuel filter
Aeromotive FPR

Apex'i AVC-R boost control

Apex'i PowerFC for tuning.


My dyno sheet is not accurate, because I had a massive boost leak, a sliced IC coupler, (that I didn't find until later....ahhh the ONE downside of a MAP-based setup) that caused my car to spool late and not be able to hold boost properly....

Bascially, a very similar setup to Cody's, except minus the extrude honing of the exhaust manifold and turbine housing, and with the 52 trim rather than the 56 trim of this turbo, and with HKS 264 Step 2 rather than JWT S3.


Probably as is, it would make around 300 ft-lbs and high 375 whp at 20 psi....needs fine tuning to the fuel and ignition to squeeze out more power.

EDIT:

With said boost leak, the car trapped roughly 112.5. The boost leak a) killed my top end in each gear (especially 2nd and 3rd) and b) more importantly, DRAMATICALLY fucked up my ability to hold boost or re-build full boost in between shifts.

My guess is that with the boost leak fixed and my current "super-conservative" tune, it is probably good for around 115-116 mph trap speed or so.

[NYS13SLIDER]

jspaeth thats the type of post i was looking for!

[steve shadows]

u can get 3-350 with a s15 turbo

Brake HP at flywheel yes,

We have been able to hit 300 WHP on the dyno dynamics with teh S15 turbo and stock cams on S14 stock long block, with FMIC and Exhaust but the turbo was pretty close to maxing out.

I have seen some cars with head work, cams, standalone and S15 turbo making 330 whp on DD, and 355-360 on DJ but cars were running around 18 psi and had almost 18 hours of dyno tuning into them.

With enough fine tuning and money spent on tuning you can really push the limits of various setups But with fly by night and all the low balling and lack of money investing in these cars in the actual tuning of the EMS sometimes the real full potential is never met. gotta pay to play.

I think the 2871R is still the best option for a good bolt up 300-360 WHP turbo on pump gas with minimal EMS, ROM retuning for a street setup. With a little more time in tuning and Haltech or better EMS on a good dyno you can see upwards of 400 whp even on pump gas with the right boost and timing. Motor and everything needs to be in tip top mechanical condition though. Some of these container motors and even the rebuilt ones are just not put together as well as they could be, this will zap outputs and probably why from setup to setup with all the external mods being equal many cars have very different actual road power outputs.

[murffy]

yup yup i would go with the disco potato, tomei cams , z32 maf ,550cc injectors, ss lines for turbo and a emanage ultimate in case you wanna change the settings and push 15 to 18psi and for sure u are going to get 350 disco potato spool up pretty quick the s15 t28 us legit but ur going to push its limit after 330 hp in my point of view good luck post up a dyno sheet once ur done bro

[focused]

Metal headgasket optional, most people who say the stock headgasket can't hold this boost haven't tried it.

I second that. Below is my setup:

Stock headstuds & head gasket.
GT28RS @ 14 psi
FMIC
3" Intake & Cone with Q45 MAF
550cc
Megan Exh. manifold, 3" outlet/downpipe/exhaust
SAFCII with a Mines ECU (meant for OEM injectors & boost with more timing)

Best dyno pull has been 272 whp.
I've had this setup for 2 years and have done at least 12 trackdays on it. I will say I feel limited by the SAFCII and want something with more adjustment but for the price it runs well.

[cotbu]

I have seen some cars with head work, cams, standalone and S15 turbo making 330 whp on DD, and 355-360 on DJ but cars were running around 18 psi and had almost 18 hours of dyno tuning into them.

With enough fine tuning and money spent on tuning you can really push the limits of various setups But with fly by night and all the low balling and lack of money investing in these cars in the actual tuning of the EMS sometimes the real full potential is never met. gotta pay to play.

I think the 2871R is still the best option for a good bolt up 300-360 WHP turbo on pump gas with minimal EMS, ROM retuning for a street setup. With a little more time in tuning and Haltech or better EMS on a good dyno you can see upwards of 400 whp even on pump gas with the right boost and timing. Motor and everything needs to be in tip top mechanical condition though. Some of these container motors and even the rebuilt ones are just not put together as well as they could be, this will zap outputs and probably why from setup to setup with all the external mods being equal many cars have very different actual road power outputs.

My gt28r setup put down 33~hp @ 18psi with stock cams, I backed it down to 14psi making 289hp and just kept on tweaking my tune. Every car is going to be different, picking a turbo then tuning it for performance is key, reliability comes after. For obvious reasons!
I think my engine has been beat to death and I believed I got my money's worth and that's why I decided to start pushing the envelope. Even before I put the 2560r on people kept telling me I needed a head gasket, and I wouldn't be able to make 300hp without cams, and I should just go t3 top mount and call it a day. Ok which t3 should I use and what kind of management to you recommend, They had no clue. So I said you want me to do a full rebuild for an 50 extra horse power? Lame's!

Now don't get me wrong, I'm not suggesting you don't rebuild or add a head gasket and studs cause I make my money this way, but research is not just reading what people recommend, but why they recommend. In my case If there is a problem, I what my head gasket to go first. If you need to know why you need to do more research!

So for the OP the best all around stock replacement turbo is the gt2871r. 64. with this turbo you still have options if you need to upgrade. Just with housing options you can add at least 50hp for compressor and another 50hp for exhaust est. and my understanding.
but none of it matters if there's no tuning! So on a decent running engine and minimal tuning and 17psi, z32mafs 555 or 650 injectors I'd say you'd have your 350 easy! I personally went with z32 and 850cc, and an external gate, but I'm not trying to limit myself to 350hp. I make that with the waste gate setting basically!

[sofargone561]

I just bought an s13 hatch with an sr20 black top in it. right now its stock ecu, stock turbo, upgraded 3'' dp, 3'' test pipe and 3'' exhuast, it has a big brakde hit, coil overs, anti sway bars, control arms, and so on, it has a 2 way lsd light weight flywheel and stage 2 clutch as well as hard motor and tranny mounts. the car has a huge fmic, upgraded radiator and line. stock turbo boosting 7psi. all new seals and rins basically rebuyilt motor with all owm parts. APR head studs, metal head gasket and brian crower stage 2 cams and a semi built head. I and looking for a solid 325 to like 350 at the wheels on a conservative tune and lower with the broadest more mid range power band possible the car is my DD right now. it is estiamted at around 250whp at the wheels right now. An suggestions on things to purchase now? i was thinking fuek punp (i htink it may be upgraded already id have to check) spark plugs, fuel injectors, turbo, BOV, and then a tune. It will be ran on 93 octance not 91 and not e85. as stated its my DD and the nearwest e85 stattions are about 40 miles away lol and suggestions. also how the hell do i get my A/C back into thr car =o its f***ing hot bro!

[Skreech_Powerz]

ok well im not that close to your goal hp, but you and i are running close to identical setups...

- Sr20det BlackTop
- Stock Internals
- Stock Ports
- Stock Head
- Stock Headgasket
- Isis Intake
- Apexi SAFCII
- Blitz DSBC (13psi)
- 80 Octane Gas (thats the best street gas in my country)
- EMUSA Intercooler
- Aluminum Intercooler pipes
- Topmount turbo mani
- T3/T4 77comp/64turb .57trim Turbo (spooles at 3k)
- 3inch Open Dump
- Stock ECU Chipped in Japan by Stream
- Walbro 255 fuel pump
- Adjustable Fuel Pressure Regulator
- Stock 370cc Injectors
- XTD Stage3 Pressureplate
- GTR 6Puck Dubble sprung Friction disk
- XTD 12LB Flywheel

Dynoed 265hp easy shifting.. hard shifting 365HP..

[Mikester]

Old thread.

[Skreech_Powerz]

and i added to my setup

- Crower Valves
- Crower Titainium Springs
- Crower Valves
- Crower 264/264 Cams
- Port & polished chambers
- Matched ported the isis intake
- Supertech exhaust valve guides
.................................................. .................................................. ..................
Unfortunatly i couldnt redyno due to one of my piston rings going to hell.. so for now my car is just sitting in the garage as i build up the funds to build the block and go for harder internals.... going to shoot for 450-650HP for my Daily Driver/ Drift Bitch..

[Mysterious Driver]

I know this is a old ass post but i'm bringing it back for those in the future to have an idea what a T28 turbo can max out at.

I was able to get 292hp/320ftq @ 17psi on a S14 T28 turbo 93 octane pump gas, I been DD for 3 years now on this setup and super reliable and very fun on the streets.

My redtop motor is bone stock
External WG
550 Denso injectors
Z32 MAF
Enthalpy rom tune by Martin

I'm sure I could have hit the 300 mark with the S15 T28r turbo and quicker spool than my current setup but i'm not complaining. Hit full boost at 2800rpm which may seem a little high but i'm also on a journal bearing turbo which is very impressive for a S14 turbo.

[I Dont Drift]

very awesome set ups! Can't wait for mine. i'm going with the gt28rs

[jr_ss]

very awesome set ups! Can't wait for mine. i'm going with the gt28rs

Why are you going 28RS? This is old tech. Update to the new GTX or EFR setups.