GT2871 USERS. SR motor

[codyace]

There is no advantage to stock cams anywhere. Well, maybe below 3000 rpm, but at that point who cares.

[sd8ted]

I'm putting some HKS 272's in tomorrow and having the car re-tuned Friday. Car is making 350-360 @18psi currently. .86 turbo, wonder what kinda power she'll make.

[EsChassisLove]

Here's my custom GReddy FMIC I was talking about. Almost finished. Vibrant Venjan clamps on the TB and compressor outlet. Added about 2ft of piping vs the PBM HMIC but ill still keep the response and have much cooler AITs.

[GuardianLlama]

My contribution, Lower red line is old high boost before cams. The higher red line is with JWT S3 HL Cams installed only. Nothing else done. Green Line is new tune, with cams at 12psi. (EBC off)

Sr20det
Power Fc
2871r .64
740cc inj
Z32 MAF
Greddy FMIC
JWT S3 HL Cams
18.3psi

353whp

[Dirtcanhurt089]

This thread shows alot of people in the 350 hp range I'm suprised not a lot are breaking the 400whp that's my goal for my hp in my s14 I have an s14 Sr20det stock bottom end. Bc stage 2 cams springs retainers basicly a stage 2 bc head on a stock s14 bb t28 and 740cc injectors on nistune I'm makeing 311whp and 289ft lbs tq at 14 psi I want to get a 2871 but what turbo do you think will get me just over 400whp but retain good tq and spool ? Sorry for the rambling just. Curious what your opinions are

Sent from my HTC VLE_U using Tapatalk 2

[801nismo104]

are you using the stock intake manifold?

[801nismo104]

Originally Posted by Dirtcanhurt089

This thread shows alot of people in the 350 hp range I'm suprised not a lot are breaking the 400whp that's my goal for my hp in my s14 I have an s14 Sr20det stock bottom end. Bc stage 2 cams springs retainers basicly a stage 2 bc head on a stock s14 bb t28 and 740cc injectors on nistune I'm makeing 311whp and 289ft lbs tq at 14 psi I want to get a 2871 but what turbo do you think will get me just over 400whp but retain good tq and spool ? Sorry for the rambling just. Curious what your opinions are

Sent from my HTC VLE_U using Tapatalk 2

you should get a gtx2867r. Theres a great thread on here on that turbo. i haven't installed mine yet but i will soon

[Dirtcanhurt089]

Yeah please let me know how you like it and yes that's stock intake manifold and an exhaust manifold I made that resembles the tomei expreame one thermal coated manifold and hotside of turbo and my own tig welded intake pipe for a cooler air flow location

Sent from my HTC VLE_U using Tapatalk 2

[EsChassisLove]

When I switch to E85 Ill be well into the 400whp range with my 2871 haha.

24psi with a lot of timing. 14 got me 310 with retarded timing. So I'm hoping 24 landscape at 410+

[GuardianLlama]

I am also on a stock intake and exhaust manifold, I'm sure I'd be much closer to 400 if they were aftermarket. And above 400whp on e85

Sent from my HTC Rezound

[cotbu]

Originally Posted by Dirtcanhurt089

This thread shows alot of people in the 350 hp range I'm suprised not a lot are breaking the 400whp that's my goal for my hp in my s14 I have an s14 Sr20det stock bottom end. Bc stage 2 cams springs retainers basicly a stage 2 bc head on a stock s14 bb t28 and 740cc injectors on nistune I'm makeing 311whp and 289ft lbs tq at 14 psi I want to get a 2871 but what turbo do you think will get me just over 400whp but retain good tq and spool ? Sorry for the rambling just. Curious what your opinions are

Sent from my HTC VLE_U using Tapatalk 2

If this is what you truly make form your BBs14 turbo? You should be cranking up the boost to 16psi then dyno again. If you are at 330 at 16psi(i was at 18psi) you should have no problem making 400 from a gt2871r, or a gtx2867r.
I still have a stock intake manifold, and running a stock exhaust manifold with TiAL v44

Originally Posted by EsChassisLove

When I switch to E85 Ill be well into the 400whp range with my 2871 haha.

24psi with a lot of timing. 14 got me 310 with retarded timing. So I'm hoping 24 landscape at 410+

14 to 24 on e85, again missing those baby steps.
I'm replacing my stock head gasket and studs, then I'm gonna shoot for 23psi on 93oct, which should pull me close to 430. And if that's the case and I still have a working engine, there's one gas station by me that serves e85, I might play around with it.

PS
Somebody from V P Racing Fuels Inc said they would love to see what my car make with their fuels, they're supposed to be making something similar or better than e85. If it doesn't require all the extra hubbub that e85 does, I'll play with that.
Currently for me e85 is too much of a commitment.

[EsChassisLove]

What baby steps am I missing?

[cotbu]

It was a joke, but 14psi to 24psi is a big step don't cha think?

[EsChassisLove]

Not for a fully built engine that can handle it. Lol

It's not like I'm going straight to 24. Tuners gonna take the baby steps on the dyno

[GuardianLlama]

I'd be surprised if 93 octane could handle 24lbs of boost.

Edit: Nvm, thought you were talking about pump. Detonation is still an.issue for built motors.

Sent from my HTC Rezound

[sd8ted]

My car put down 411hp 386tq at 18psi last week after the 272 cams went in. AFR's a little on the rich side too. Gonna drive it around and nistune it some tomorrow for street/cruising.

Having a weird idle problem too, the car will idle low and dip down under 500rpms when coasting in neutral. Then when I come to a complete stop the car will idle up to 900-1000rpms like it should. It affects my brakes and PS which is annoying, anyone have any suggestions? Gonna check the iacv tomorrow.

[Dirtcanhurt089]

Ny tuner told me that the Sr stock turbos get way too hot after 15lbs said I shld hang at 14 for a reliable but still good power turbo

Sent from my HTC VLE_U using Tapatalk 2

[mewantkouki]

Does anyone in here want to trade a .64 exhaust housing for a .86? They are interchangeable. There isn't anything wrong with mine. Just very light surface rust from sitting on my shelf.

[Veryflush]

Originally Posted by sd8ted

My car put down 411hp 386tq at 18psi last week after the 272 cams went in. AFR's a little on the rich side too. Gonna drive it around and nistune it some tomorrow for street/cruising.

Having a weird idle problem too, the car will idle low and dip down under 500rpms when coasting in neutral. Then when I come to a complete stop the car will idle up to 900-1000rpms like it should. It affects my brakes and PS which is annoying, anyone have any suggestions? Gonna check the iacv tomorrow.

Mine does the same shit. Sometimes idles normal then sometimes idles like it has a vac leak. I think its the n62 maf.

Sent from my myTouch_4G_Slide using Tapatalk 2

[EsChassisLove]

Originally Posted by GuardianLlama

I'd be surprised if 93 octane could handle 24lbs of boost.

Edit: Nvm, thought you were talking about pump. Detonation is still an.issue for built motors.

Sent from my HTC Rezound

We have 91octane down here in CA. I could barely get away with 16psi on this shitty gas, that's why I'm on 14. Let alone 24 lol

E85 can handle 24psi. Easy.

[di-devol]

Originally Posted by sd8ted

My car put down 411hp 386tq at 18psi last week after the 272 cams went in. AFR's a little on the rich side too. Gonna drive it around and nistune it some tomorrow for street/cruising.

Having a weird idle problem too, the car will idle low and dip down under 500rpms when coasting in neutral. Then when I come to a complete stop the car will idle up to 900-1000rpms like it should. It affects my brakes and PS which is annoying, anyone have any suggestions? Gonna check the iacv tomorrow.

This was racegas correct?

[cotbu]

Originally Posted by Dirtcanhurt089

Ny tuner told me that the Sr stock turbos get way too hot after 15lbs said I shld hang at 14 for a reliable but still good power turbo

Sent from my HTC VLE_U using Tapatalk 2

This tells me everything I need to know about you,and your tuner! just saying! The fact is you think 1psi is going to make a difference between the turbo pumping hot air and cold air!
Please don't argue with me, there's no need! I'll assume that answers my other question as well.

[Dirtcanhurt089]

Lol doesn't surprise me you decide to go being a fucking prick for no reason I can run 16 if I wanted to even 18 but the fact of the matter is 14 is a good comfortable number that doesn't make it work hard and thats where I left it so before you go trolling take a chill pill there's no need to be a dickhead .

Sent from my HTC VLE_U using Tapatalk 2

[cotbu]

I'm sorry if it came off like that, i just responded to what you posted, just like this one. If you know something not to be true then why, why reiterate!

[EsChassisLove]

The turbo is always pumping hot air. Lol.

[sd8ted]

Originally Posted by di-devol

This was racegas correct?

No, 93 octane.

Figured out the idle issue. Snipped the speed wire that runs from cluster back to the ecu, now idling smooth while coasting. Still having an issue when pushing in the clutch after giving it some throttle and the car dying.

[di-devol]

Originally Posted by sd8ted

No, 93 octane.

Figured out the idle issue. Snipped the speed wire that runs from cluster back to the ecu, now idling smooth while coasting. Still having an issue when pushing in the clutch after giving it some throttle and the car dying.

Dyno graph for this? 411hp 386tq on 18psi seems high, that's some nice torque you got there.

[codyace]

Originally Posted by GuardianLlama

I'd be surprised if 93 octane could handle 24lbs of boost.

Edit: Nvm, thought you were talking about pump. Detonation is still an.issue for built motors.

24psi would probably blow spark out on the stock ignition too.

Originally Posted by di-devol

Dyno graph for this? 411hp 386tq on 18psi seems high, that's some nice torque you got there.

Agreed - that's an exceptional amount of torque. Wonder if that is to tire or to estimated flywheel.

[EsChassisLove]

Stock ignition. Pshhhhh what's that? Lol

I'm on Splitfires right now. Don't trust them though. Gonna switch to LSx packs. Spark for days!

[sd8ted]