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View Full Version : 450+hp sr20 rebuild


Quicksilver_s13
04-27-2010, 09:49 PM
i have a redtop sr20det that i plan on rebuilding to get 450+hp out of. i plan on running:
stock crank
brian crower bROD w/ARP2000 fasteners
CP pistons (still debating what size)
possible dry sleeve if i go with a larger diameter piston
Clevite rod and main bearings
Greddy oil pan
Brian Crower valve spring/retainer kit
oversize Brian Crower stainless valves
HKS rocker arm stoppers
HKS cam gears
HKS 264 intake/exhaust cams
Jim Wolf bronze valve guides
tomei solid pivots
supertech valve stem seals
APR main bolts and head studs
Apexi metal head gasket
Greddy intake manifold
gt3076r or hks gt3240 turbo


possibly 70mm throttle body

any thoughts and advice would be much appreciated! this is my first build, anything that i could change for still high power yet driveability stays is key...yet i know theres a point where that is no longer a factor.

brian3676
04-27-2010, 11:01 PM
$$$Baller$$$ haha. What EMS you gunna run?

Quicksilver_s13
04-27-2010, 11:35 PM
$$$Baller$$$ haha. What EMS you gunna run?

haha! i know....i don't plan on doing it overnight though. i was thinking just the AEM standalone...unless the Haltech is better?

brian3676
04-28-2010, 10:30 AM
Talk to your tuner, Who u gunna have tune it? U.P? driftoffice? P1? talk to them and see who you decide you want to tune your car, then get what they like to tune. Dont matter what EMS you have if ur tuner cant tune it.

Quicksilver_s13
04-28-2010, 11:05 AM
Talk to your tuner, Who u gunna have tune it? U.P? driftoffice? P1? talk to them and see who you decide you want to tune your car, then get what they like to tune. Dont matter what EMS you have if ur tuner cant tune it.

that's true, i was thinking maybe portland speed industries...

also is it worth sleeving the block? lets say if i bore it out for 87mm pistons....

bboyoracle
04-28-2010, 11:11 AM
Sounds like a dream build to me. I'll believe it when I see it.

Z33dori
04-28-2010, 11:11 AM
Hit up Intec Racing

jspaeth
04-28-2010, 11:20 AM
Sounds like a dream build to me. I'll believe it when I see it.


I dunno why you would say that.

Not ALL 240 owners are poor haha.

I have enough money right now to do anything I want to my car, but it just isn't worth it right now because it is my daily driver and I put to many miles on it and need it to be as streetable as possible.

stockbee
04-28-2010, 11:52 AM
Sounds like a dream build to me. I'll believe it when I see it.

You sound like a dream to me.....boy oracle.....

Good luck with the build o.p., I have 264's on my car, but I don't really have many of the mods that would help me take advantage of them so far. Just the little lopey idle for me at the moment....

Keep us posted with pics and updates!

Quicksilver_s13
04-28-2010, 01:12 PM
Sounds like a dream build to me. I'll believe it when I see it.
why you gotta be hating? can't a guy plan on building something without negative comments. what if everybody went around telling you that you can't do anything to your car when you tried?
Hit up Intec Racing
where are they located? i'm in washington...
You sound like a dream to me.....boy oracle.....

Good luck with the build o.p., I have 264's on my car, but I don't really have many of the mods that would help me take advantage of them so far. Just the little lopey idle for me at the moment....

Keep us posted with pics and updates!
thanks! it will be a slow process. parts as you all know aren't cheap. i just got the engine a couple days ago and have started unbolting externals. i work 7 days a week through the summer so i won't really get started on it until the fall. i would appreciate any more info/thoughts!!! thinking of going with 87mm 8:5:1 pistons. think i should sleeve the block?

WISH ONE
04-28-2010, 01:27 PM
Call steve shadows and pay him 20 for consultation over the phone.

Om1kron
04-28-2010, 01:37 PM
Sounds like a dream build to me. I'll believe it when I see it.

mainly just because of the age of the user. LOL!!!

Quicksilver_s13
04-28-2010, 03:57 PM
mainly just because of the age of the user. LOL!!!
what does age have to do with it? i already have a 727hp/1440tq dodge diesel and it's time to move back into the import scene.

JDM Sil4ty
04-28-2010, 04:20 PM
what does age have to do with it? i already have a 727hp/1440tq dodge diesel and it's time to move back into the import scene.

cool story bro. gl w/ your future beast build .

510-SR20DET
04-29-2010, 04:46 AM
DON'T DO IT. Save that money, you'll need it later. Once you started modding cars, it wont stop. You will never be happy.

VNG704
04-29-2010, 07:05 AM
70mm? that's pretty much stock, I think. Not that you couldn't do that but you could toss an 80 or 90mm tb in the mix. Don't think you listed injectors or a clutch kit that would handle the torque. Probably want to effeciently put it down...tires, decent diff. Consider upgrading your cooling, um I could go on. It gets costly especially since you(me) never really consider all the little things you have to change in the process like gaskets, seals, etc... But yea, take your time and you won't get broke.

Quicksilver_s13
04-29-2010, 08:10 AM
cool story bro. gl w/ your future beast build .
thanks, i can't wait for it to get rolling.
DON'T DO IT. Save that money, you'll need it later. Once you started modding cars, it wont stop. You will never be happy.
story of my life....i made over 700hp with my diesel but yet i can still get more out of it. is it worth it..NO..but there's always that feeling like it's not good enough. i guess it's a disease us speed junkies suffer from.
70mm? that's pretty much stock, I think. Not that you couldn't do that but you could toss an 80 or 90mm tb in the mix. Don't think you listed injectors or a clutch kit that would handle the torque. Probably want to effeciently put it down...tires, decent diff. Consider upgrading your cooling, um I could go on. It gets costly especially since you(me) never really consider all the little things you have to change in the process like gaskets, seals, etc... But yea, take your time and you won't get broke.
after i posted i noticed i forgot about 3049830849 items. but yes i plan on starting rebuilding the short block this fall/winter. i'm working 7 days a week in the summer so i won't have time. like i said this will be a slow build but i want to do it right.

8Nismo9
04-29-2010, 09:21 AM
What size injectors and maybe a methanol kit for durability and efficiency.

X2daC
04-29-2010, 09:36 AM
What size injectors and maybe a methanol kit for durability and efficiency.

Methanol won't be needed if you have a good tuner and engine build.

hockeyrules
04-29-2010, 10:20 AM
im in the process of almost the sam build, can you give some insight on why your using clevite bearings?

ImpatientS14
04-29-2010, 10:58 AM
I would sleeve it while you have it apart. I built my motor and it ended up breaking between cylinder 1 and 2 where the wall is thinnest. Luckily I was able to salvage the block by sleeving it with Darton sleeves, now it's 90mm bore with CP pistons and mazworx 90mm PE Headgasket. I have an Apex 1.1 HG around if you need a deal on one though.

Quicksilver_s13
04-29-2010, 01:34 PM
What size injectors and maybe a methanol kit for durability and efficiency.
i'm thinking about a 750cc injector...give or take if needed.
Methanol won't be needed if you have a good tuner and engine build.
that's what i'm shooting for...i'd rather just run pump gas.
im in the process of almost the sam build, can you give some insight on why your using clevite bearings?
what's the price and quality difference compared to the ACL race bearings?

drifter_for_life06
04-29-2010, 02:13 PM
i vote 9.0:1 750cc should do you justice just fine. Im about to start my build in the next few weeks.

Quicksilver_s13
04-29-2010, 06:19 PM
i vote 9.0:1 750cc should do you justice just fine. Im about to start my build in the next few weeks.
why not stick with lower compression? you can run more boost safer on lower compression. couple more psi on 8:5:1 will gain you more power than a small step up in compression won't it?

ross.cottrill
04-30-2010, 04:43 AM
ok,so you dont have any of these parts or any direction.soo basicly you just posted a dreamer thread and really have no ideah if any of this will ever even come about?
this is gona get locked!!!LOL>>>>

jackal264
04-30-2010, 05:10 AM
methanol kits are the way to go. i run just strait distilled water through mine. a one gallon tank lasts basically as long as a tank of gas depending on how i drive and it allowed me to increase boost from 17 to 21.5 simply because it drastically reduces intake temps. on the other hand i have a friend that made a aditional 66rwhp using pure meth.

smelly240
04-30-2010, 05:30 AM
that list is almost exactly my setup...

just realized you're 21... how about you start out with a stock engine first.

Quicksilver_s13
04-30-2010, 07:36 AM
ok,so you dont have any of these parts or any direction.soo basicly you just posted a dreamer thread and really have no ideah if any of this will ever even come about?
this is gona get locked!!!LOL>>>>
isn't everything we do to our cars/engines part of a dream? i'm trying to setup my build before i do it. isn't it smart the get squared away exactly what you want and how you're going to do it? that's why i started this thread. i was hoping for advice on how to get there instead of haters trying to bring me down. if you're so depressed that your car sucks then leave the negative comments out.
that list is almost exactly my setup...

just realized you're 21... how about you start out with a stock engine first.

like i said, what's age got to do with it? i've already built a my diesel over 700hp. i have a redtop sitting on an engine stand right now and am starting to tear into it.

whitey240
04-30-2010, 08:53 AM
What is your budget?

Stock Block + VVL Head and Mazworx install kit + 30R turbo + Mazworx Turbo Kit + Nistune will net you just shy of 500hp and reliable.

brian3676
04-30-2010, 04:26 PM
why not stick with lower compression? you can run more boost safer on lower compression. couple more psi on 8:5:1 will gain you more power than a small step up in compression won't it?

You should research this. Lower is not always better, Bump up to 9:1 you will have more low end and a little faster turbo spool. Thats one example, compression of a motor can effect a lot. What are you doing with the car? drag? drift? street?

Quicksilver_s13
04-30-2010, 07:34 PM
You should research this. Lower is not always better, Bump up to 9:1 you will have more low end and a little faster turbo spool. Thats one example, compression of a motor can effect a lot. What are you doing with the car? drag? drift? street?

just a fun street car that i'll drag with every now and then. not a DD either...

smelly240
05-01-2010, 06:52 AM
You should research this. Lower is not always better, Bump up to 9:1 you will have more low end and a little faster turbo spool. Thats one example, compression of a motor can effect a lot. What are you doing with the car? drag? drift? street?

so you have experience with this?

because I have experience with this - and when i went from 9.0 to 8.5 - there was NO CHANGE in spoolup rpm.

Your compression ratio should be determined mostly by the fuel you're gonna run - if you're gonna run c16 all day - do something high... If you run 91 - stay at 8.5

Still sounds like a dreamer...

ross.cottrill
05-01-2010, 10:57 AM
i'm thinking about a 750cc injector...give or take if needed.

that's what i'm shooting for...i'd rather just run pump gas.

what's the price and quality difference compared to the ACL race bearings?

with 11 post and a daydream of what your "wanting to build"i just think its a waste of bandwidth,dont you?get your shit squared away on your own time and stop cluttering up the site with stupid shit like this!!you can do research off of hundreds of dynos and post of people that have actually bought and built shit for your answers.oh and i guess you dont know shit about me to the that im depressed about my 800hp widebody s14 thats alomost finished....dumbfuck...:ddog:

docrez
05-02-2010, 06:09 AM
I'm actually getting my 4500 dollar paper weight back in about 2 weeks. OP I hope your made of money, cuz this shit aint cheap.
I still need a manifold, fluids, wideband,wastegate,and $500 in machine work to go.
So yes I will have a 550 horse SR that isnt going to do shit for me. So plan wisley; google for the lowest prices and do as much as you possibly can. I'm being cheap as fuck im still going to be a grand over budget...

Quicksilver_s13
05-02-2010, 11:02 PM
with 11 post and a daydream of what your "wanting to build"i just think its a waste of bandwidth,dont you?get your shit squared away on your own time and stop cluttering up the site with stupid shit like this!!you can do research off of hundreds of dynos and post of people that have actually bought and built shit for your answers.oh and i guess you dont know shit about me to the that im depressed about my 800hp widebody s14 thats alomost finished....dumbfuck...:ddog:

well thanks for the help fucktard. i was looking for real advice from people who have had experience with this stuff not some dick response from a guy who tries to build his ego daily. you guys expect me to have this build started and done in weeks. oh well, guess i don't need you guys. somebody was nice enough to talk about my build with me so i'm done with "useless" questions. have fun with your ghetto s14 that builds crazy power. i guess it's cool but damn, have fun getting that down to the pavement.

s14driver
05-02-2010, 11:56 PM
You'll make 450 fine without meth or e85. Just pistons and rods to be safe and a nice size turbo. Hell u could even try it on the stock block and hope for the best.

ross.cottrill
05-03-2010, 05:33 PM
so you have experience with this?

because I have experience with this - and when i went from 9.0 to 8.5 - there was NO CHANGE in spoolup rpm.

Your compression ratio should be determined mostly by the fuel you're gonna run - if you're gonna run c16 all day - do something high... If you run 91 - stay at 8.5

Still sounds like a dreamer...

one of the main things with going a little higher in compression is that you will make more horsepower per lb of boost,so in essence it will feel like it spools faster because its making more power at that same boost level..i say go 9.0-1if you have 93 octane redily available.that and c16 is what ill be running in my ghetto ass s14 lol..

Quicksilver_s13
08-06-2010, 12:22 PM
with 11 post and a daydream of what your "wanting to build"i just think its a waste of bandwidth,dont you?get your shit squared away on your own time and stop cluttering up the site with stupid shit like this!!you can do research off of hundreds of dynos and post of people that have actually bought and built shit for your answers.oh and i guess you dont know shit about me to the that im depressed about my 800hp widebody s14 thats alomost finished....dumbfuck...:ddog:

FYI....i got my car done...and it's around 475hp.

silentdancer
08-06-2010, 01:06 PM
pics/dyno?

Quicksilver_s13
08-06-2010, 03:22 PM
pics/dyno?

i'm working on that! i've barely had time to drive the car. might have time this weekend to get that stuff up.

ross.cottrill
08-06-2010, 04:38 PM
FYI....i got my car done...and it's around 475hp.

what turbo did you go with?got any dynos?enjoy it man!!

idahotuner
08-06-2010, 05:54 PM
look into mazworx kit for pistons and rods. thats what i got. best prices and machine work cant be beat. quickest turn around i haveseen too for resleeving its the way to go

iamtheyi
08-06-2010, 06:31 PM
Drop everything and go KA-T :D. Haha. I'm just kidding man. Good luck with your build!

Quicksilver_s13
08-06-2010, 07:56 PM
what turbo did you go with?got any dynos?enjoy it man!!
haha! thanks....just thought since i made some progress i'd kick up an old thread. to be honest i figured it was better to buy a built car....sold my diesel and bought the car for half that amount. otherwise it would have been a lot more expensive and much more time to get anywhere.

running hx35w turbo sitting on a full race manifold. greddy intake manifold with SARD 850cc injectors. power fc for management, eagle rods, cp pistons, hks 264/272 cams, cam gears, and valve springs, brian crower valves and retainers, greddy rocker arm stoppers, ported polished head, os giken twin disk clutch....i thinks thats the just of it.

working on getting a retune because it's running rich as hell! bought a vg30dett tranny for it yesterday so i'll be throwing that in with the mazworx adapter kit eventually. maybe put some defi link cr's in if i feel like dropping the cash.

all in all i'm happy with the car and look forward to driving/drag racing it more.

look into mazworx kit for pistons and rods. thats what i got. best prices and machine work cant be beat. quickest turn around i haveseen too for resleeving its the way to go
if i ever have to tear into the engine i'll be going 90mm pistions 9:1 compression and sleeving the block. going for 550hp then.

idahotuner
08-07-2010, 03:58 PM
so you bought a built car? doesnt that take half the fun out of it

volkrps13
08-07-2010, 04:11 PM
9.1 compression would be better....


the higher the cp to lower amount of boost you have to run on the same size turbo to make the same power...


IE.... 8.5 compression at 20 psi makes 480whp.... 9.1 compression at 16 psi makes 480 whp... just an example

idahotuner
08-07-2010, 05:39 PM
yeah my sr22 i am building has 9 to 1. planing on running that new tomei arms turbo.

Quicksilver_s13
08-08-2010, 02:49 PM
so you bought a built car? doesnt that take half the fun out of it
it was so much cheaper....plus i can still "personalize" the car to my liking. the big picture is done with, now i can focus on the smaller things.