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Old 11-26-2008, 09:43 PM   #691
S13 curtis
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i have a question, Is it ok to use the stock oem lines from the t25?
and is there anybody on here using them?
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Old 11-27-2008, 06:39 AM   #692
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Old 11-27-2008, 08:03 AM   #693
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Im done throwing money at this setup.

If anyone wants my whole setup (Motor, Trans, clutch everything) minus the turbo its yours for super cheap you just have to pick it up.
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Old 11-27-2008, 08:51 AM   #694
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Quote:
Originally Posted by BiG MiKE86 View Post
Didnt want to REV past 6500 - and it wasnt like bouncing off a rev limitter - it like hit a wall and died slowly even with the pedal to the floor

I will try gapping the plugs down some more this weekend thank you for the help
What intake do you have? Small filter can be a restriction and I've personally seen the stock rubber intake collapse when warm/higher boost.
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Old 11-27-2008, 09:33 AM   #695
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Quote:
Originally Posted by jakerps13 View Post
What intake do you have? Small filter can be a restriction and I've personally seen the stock rubber intake collapse when warm/higher boost.
3" Piping Pro Aluminum Intake + Apexi Filter
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Old 11-27-2008, 10:30 AM   #696
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Quote:
Originally Posted by slider2828 View Post
Dude... OMFG.... Boost pressure does not mean that is how much air is running through your engine. GT2871R at 8PSI > T25 at 8PSI in airflow.... You will be running lean and asking to blow your motor... Or at least running close to Maximum flow for your injectors.... It is a risk for running that turbo with an untuned ecu as it may not be able to compensate for the increase in airflow into the motor....

Secondly you cannot run a N62 on a stock ecu without a piggy back or a standalone anyways....
how would 8psi on a 2871r be any better then 8psi on a t25? pressure is pressure, it would seem to me you could run a gt35r on 8psi and it would be the same as a t25 at the same pressure aside from spool up. this always confused me when people said that, im not trying to argue im just wondering.
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Old 11-27-2008, 10:44 AM   #697
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CFM/efficiency....
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Old 11-27-2008, 11:33 AM   #698
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So can i run it on stock boost or not? atleast jus to daily drive.
jus want your guy's input.
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Old 11-27-2008, 12:51 PM   #699
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I wouldn't boost the damn thing at all... Good idea to have a wideband on board just incase and none of that stupi apexi narrowband O2 junk.... Get it tuned.....Your motor will thank you for it. Spend 300 for a tune OR 2000 for an engine rebuild... You make your choice and I am not kidding about this.

Yes there is a difference pressure only measures pressure in the manifold but flow is different. Take for an example I have 2 Fans, 1 is a 2" fan and one is a 4" fan. Well the 4" inch fan will produce more pressure FASTER and sustain that pressure longer than a 2" Fan? Well its the same here the T25 is the 2" fan and the 4" fan is a GT2871R.
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Old 11-27-2008, 04:26 PM   #700
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Quote:
Originally Posted by S13 curtis View Post
no shit i knoe that. i was running 13 psi on the T25. no problems.,
No problems? At 13/14 psi, your injectors are easily above 95% duty cycle and your MAF is easily pegged. Mind you that these both are those levels at around 4000 rpm..leaving that last 3000+ rpm of revving and load with no correction...it's a recipe for disaster.

Quote:
Originally Posted by slider2828 View Post
I know money is tight, SO maybe you should just get a rom tune from JWT or enthalpy or something.
Exactly. It's obvious that he is trying to nickle and dime into a fast car, so the rom tune is the best way.

In reality, and take no offense to this, but to from a stock setup to a 2871r is a big step, economically. I would put aside a fair amont of money, get quality parts, and do it right once/the first time.


Quote:
Originally Posted by S13 curtis View Post
i have a question, Is it ok to use the stock oem lines from the t25?
and is there anybody on here using them?
Get Taka braided lines. They make life SO much easier.

Quote:
Originally Posted by sbanzer123 View Post
how would 8psi on a 2871r be any better then 8psi on a t25? pressure is pressure, it would seem to me you could run a gt35r on 8psi and it would be the same as a t25 at the same pressure aside from spool up. this always confused me when people said that, im not trying to argue im just wondering.
will pressure may be the same, the amount of air being forced into the engine is not.

Think of it this way. 8 psi on a k03 baby turbo will probably get you 180-190 whp, if that. A t25, probably 210 whp. A t28, 230 whp. A GT35, 300 whp, etc etc etc.

Quote:
Originally Posted by OBEEWON View Post
Im done throwing money at this setup.

If anyone wants my whole setup (Motor, Trans, clutch everything) minus the turbo its yours for super cheap you just have to pick it up.

LS1 time
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Old 11-27-2008, 04:28 PM   #701
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fuck a LS1 he already has a 4 rotor we're putting in in the next 2 weeks.

























psych... his car got hit so he gotta put that crap back together.
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Old 11-27-2008, 04:39 PM   #702
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O crap... sorry to hear that Obeewon!! Good luck bro....
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Old 11-27-2008, 04:42 PM   #703
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Quote:
Originally Posted by smelly240 View Post
fuck a LS1 he already has a 4 rotor we're putting in in the next 2 weeks.



psych... his car got hit so he gotta put that crap back together.

Aw man that bites!!! Is he ok?
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Old 11-28-2008, 11:16 AM   #704
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okay. how much power you guys think ill make with my set up?

S14 Blacktop

Head work
-HKS stage 2 cams
-HKS springs and retainer
-Port and polish
-3 angle job
-Tomei solid lifters
-Greddy RAS
-Greddy Metal Head Gasket
-ARP Head Studs
-Stock Intake Manifold
-720cc injectors
-Megan turbo manifold
-GT 2871r 86trim w/taka lines
-3in turbo dump and cat back exhaust

Built bottom end Block
with CP pistons and rods.
crank is balance and clean.
right now i have a exedy stage 2 but dont think it'll last long.
want to get the ACT 6 puck exem pressure plate.

Z32 maf and Power FC.....

i want to run atleast 15-18 psi daily...what you guys think?
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Old 11-28-2008, 11:22 AM   #705
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I think you should put it on a dyno and find out. We aren't magicians...
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Old 11-28-2008, 11:49 AM   #706
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wow, this thread is old.. haha

180sx
tomei cams 264, springs and retainers.
stock bottom end
850cc
stock rail
walboro 255
stock manifold intake/exhaust
z32 maf
power fc

gt2871 .63
22lbs
race gas

396 whp
370 tq

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Old 11-28-2008, 02:04 PM   #707
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Why is the torque/hp falling off starting ~5500 - 6500 if you have cams? Is the stock intake and exhaust manifold the culprit? Nice whp and tq btw.
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Old 11-28-2008, 02:12 PM   #708
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Because SR's suck...
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Old 11-28-2008, 02:19 PM   #709
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Old 11-28-2008, 02:58 PM   #710
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Quote:
Originally Posted by design240sx View Post
okay. how much power you guys think ill make with my set up?

S14 Blacktop

Head work
-HKS stage 2 cams
-HKS springs and retainer
-Port and polish
-3 angle job
-Tomei solid lifters
-Greddy RAS
-Greddy Metal Head Gasket
-ARP Head Studs
-Stock Intake Manifold
-720cc injectors
-Megan turbo manifold
-GT 2871r 86trim w/taka lines
-3in turbo dump and cat back exhaust

Built bottom end Block
with CP pistons and rods.
crank is balance and clean.
right now i have a exedy stage 2 but dont think it'll last long.
want to get the ACT 6 puck exem pressure plate.

Z32 maf and Power FC.....

i want to run atleast 15-18 psi daily...what you guys think?
depending on what type of fuel you use, what kind of dyno you use, and how good the tuner working your PFC is, you'll make between 350-400whp
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drive your car into the garbage and leave it there
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Old 11-28-2008, 09:59 PM   #711
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Quote:
Originally Posted by xdarkrune View Post
depending on what type of fuel you use, what kind of dyno you use, and how good the tuner working your PFC is, you'll make between 350-400whp

just on 93 pump gas. dont know what dyno but onces the snow clears up im sure ill post the dyno sheets up. i have a friend that tune mines.
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Old 11-28-2008, 10:25 PM   #712
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Quote:
Originally Posted by design240sx View Post
just on 93 pump gas. dont know what dyno but onces the snow clears up im sure ill post the dyno sheets up. i have a friend that tune mines.

with a legit reputable tuner (steve shadows comes to mind) no doubt you can hit 400 on 93 oct.

im not sure on what credentials your buddy has but if he's comparibly than you should be fine.
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Old 11-28-2008, 11:29 PM   #713
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This thread isn't what it was a couple months ago anymore...
werid posts, random dumbness and stupid questions started again.. lets get back to tech talk and posting Dyno's and talking setups.. no more how much power do you think "style questions"...and little dumb arguments...
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Old 11-28-2008, 11:36 PM   #714
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Quote:
Originally Posted by JacksonBrown View Post
Why is the torque/hp falling off starting ~5500 - 6500 if you have cams? Is the stock intake and exhaust manifold the culprit? Nice whp and tq btw.
Thats what I was thinking too, I am pretty sure its because of the Stock intake mostly

Quote:
Originally Posted by v-empire View Post
wow, this thread is old.. haha

180sx
tomei cams 264, springs and retainers.
stock bottom end
850cc
stock rail
walboro 255
stock manifold intake/exhaust
z32 maf
power fc

gt2871 .63
22lbs
race gas

396 whp
370 tq

Im'e jealous of your numbers...
have you ever dyno'ed it on pump to see how much of a difference it makes?
I have always been curious, I am assuming about 20 hp or so?
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Old 11-29-2008, 03:42 AM   #715
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is 22psi ok to run on these turbos? thought no more than 20 could be run without harm
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Old 11-29-2008, 09:10 AM   #716
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Quote:
Originally Posted by JacksonBrown View Post
Why is the torque/hp falling off starting ~5500 - 6500 if you have cams? Is the stock intake and exhaust manifold the culprit? Nice whp and tq btw.
well, the restrictions could be possible.

however if you notice the peak and the plateau, thats the power band i am looking for this particular setup. this car is put together as a budget race car and i m still beating the living crap out of the car for over a 3 years. car has competed in D1GP and Nopi, and constant grass root drifting at least once a month for the past years, with the same engine and setup. never gave any problems.

the A/F can be improved and simple mods can be made so it wont fall too bad and there are other tricks to keep it going, but for the purpose of this ride and deseired power band is reached, plus i will be banging red line constantly, since traction is already loss, therefore i do not need more power, but i need it to be safe. - keyword.

thats a big reason the car is tuned that way and we havent had problems for many of our similarly build setups. for my higway cars, thats a different ball game.

but yes, i believe there are some restrictions up top.

Quote:
Originally Posted by Gabe╚╗14 View Post
Thats what I was thinking too, I am pretty sure its because of the Stock intake mostly

Im'e jealous of your numbers...
have you ever dyno'ed it on pump to see how much of a difference it makes?
I have always been curious, I am assuming about 20 hp or so?
there is no reason to tune the car at pump gas. the car is build for competiton and i run race gas in competition.

if i wanted to make more power, i can with a different setup. this setup was done with very low budget and still pounding on it. stock bottom, intake, exhaust. with aftermarket cams, turbo, ecu, injectors, and a very expensive tune session.. haha. car gets tuned 3 times a year.

Quote:
Originally Posted by WILDACEX187 View Post
is 22psi ok to run on these turbos? thought no more than 20 could be run without harm
i dont see why not. i run 2 bar on this setup right now. car makes over 415whp on race gas.

u have to understand, once you start putting mods on your car, and running it like i do, the car isnt oem any more or "safe"

all your mods (lifetime of product) are counted in race hours, before replacing it to prevent catastrophe in competition.
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Old 11-29-2008, 07:31 PM   #717
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there is no reason to tune the car at pump gas. the car is build for competiton and i run race gas in competition.

if i wanted to make more power, i can with a different setup. .
Got it, I didnt know it was a track only car, thought it was a dd and you had just tuned it to race gas to dyno it.
yea its a very effective setup and i would prefer my power band hittign max sooner than later in the rpms too..
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Old 11-29-2008, 11:19 PM   #718
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Correct me if i'm wrong but doesn't HP & TQ ALWAYS CROSS AT 5250 RPM ?? On any motor ??
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Old 11-30-2008, 12:34 AM   #719
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Originally Posted by v-empire View Post


i dont see why not. i run 2 bar on this setup right now. car makes over 415whp on race gas.

u have to understand, once you start putting mods on your car, and running it like i do, the car isnt oem any more or "safe"

all your mods (lifetime of product) are counted in race hours, before replacing it to prevent catastrophe in competition.

safe for the turbo i mean.
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Old 11-30-2008, 06:35 AM   #720
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Originally Posted by WoolyS14DET View Post
Correct me if i'm wrong but doesn't HP & TQ ALWAYS CROSS AT 5250 RPM ?? On any motor ??
you are correct.
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