400 whp Stock block Redtop - GT2871r .64 power!

[idahotuner]

so i would need it honed to get 375whp wit hthe .64. i read that tubular manifold can help with spool up by about 400rpm's so wit hthe 264 bc cams i am getting it should be aa pretty soild 375. right?

[slik_s13]

[QUOTE=codyace]

The manifold and turbo were honed by Extrude Hone (www.gethoned.com) It's a high tech puddy that they force through the part, and being that it's liquid based, it flows much like air would, and shines/ports/cleans up everything. SVT Contours had their intakes factory extrude honed...

i was checking out the web site and i was looking at the prices to get the exhaust manifold afm'd (abrasive flow machined) and it seems pretty pricey, i didnt see how much it would cost for the turbo housing. but is it worth it spending that much? or would it be better to get a aftermarket manifold, or another thing, can it be done with dremel rotary tool? i know its not going to be as good as AFM'D process or it probally wouldnt be nowhere near the quality of a AFM'D unit but would it help enough to notice a diffence in spool up. oh and nice setup!

[drmerdp]

so say i get the same mods as him (thread starter) except i get the t3/t4 50 trim .63a/r, ill have full boost exactly like his and right around the same hp numbers he does?

if not, what will be the biggest differences between the 2871 vs t3/t4 50 trim .63a/r?

I'm curious...anyone?

[Geno750]

I'm curious...anyone?

The t3 will not suffer from the same restriction the t2 manifold has, but it won't spin as easily as a BB turbo, as for power I could only guess, looking at flow rates should give you a general idea of what the turbo is capable

[Mouse6933]

im hoping to give these numbers a run , 2871r 64. tomei head gasket, tomei throttle body , arp studs,, thermal intake gasket bc springs and retainers, ras, hks step 2 264's, came gears, greddy intake mani, greddy vspl, synapse external wastegate, mr exhaust mani and o2 pipe, greddy emanage ultimate, MAP setup, and AEM ALKY injection..... should have it done and dyno before end of month, just waitin on intake mani, and some aluminum piping..... any info or suggestions are always appreciated

for the op what diff are you running, wheel and tire setup, and are u on stock driveshaft....

Myles

[Geno750]

im hoping to give these numbers a run , 2871r 64. tomei head gasket, tomei throttle body , arp studs,, thermal intake gasket bc springs and retainers, ras, hks step 2 264's, came gears, greddy intake mani, greddy vspl, synapse external wastegate, mr exhaust mani and o2 pipe, greddy emanage ultimate, MAP setup, and AEM ALKY injection..... should have it done and dyno before end of month, just waitin on intake mani, and some aluminum piping..... any info or suggestions are always appreciated

for the op what diff are you running, wheel and tire setup, and are u on stock driveshaft....

Myles

A big thing to remember is he extrude honed his manifold and turbo, that means that the turbo is technically no longer a .64ar turbo now, its slightly larger.

[Mouse6933]

how muhc of a difference is that over all, i thought iread it helpd more with the spool rather than overall power? maybe i misread or mis understood

[Geno750]

how muhc of a difference is that over all, i thought iread it helpd more with the spool rather than overall power? maybe i misread or mis understood

It helped with both actually, since he smoothed out the insides of the manifold and turbo as well as made the t2 flange and the a/r or the exhaust side slightly larger. Without having him dyno the exact same setup w/o extrude hone there is no exact way to tell.

[Mouse6933]

well i guess ill see what my setup will do, im pretty confident ill still put down semi similar numbers but dont wanna get my hopes up too much.. did he ever state how much boost he dyno'd on?

or how much it costed for the turbo to be honed?

[Geno750]

well i guess ill see what my setup will do, im pretty confident ill still put down semi similar numbers but dont wanna get my hopes up too much.. did he ever state how much boost he dyno'd on?

or how much it costed for the turbo to be honed?

Not that I saw, but from what I understand, the wizards at XS engineering have been doing 400whp sr's with 2871r .64 turbos for some time now.

[Mouse6933]

Not that I saw, but from what I understand, the wizards at XS engineering have been doing 400whp sr's with 2871r .64 turbos for some time now.

haha wizards indeed

i was under the impression running my external gate will add power, the cam gears will add to my driveability, and the alky the my smile factor

[idahotuner]

i am going to run a megan racing manifold with a .64 gt2871r turbo. and i have full exhaust and all the comon upgrade stuff, fmic. tomei hg, bc264 cams bc springs, arp headstuds. with an enthalpy tune. and some other stuff. hopen for 375 whp. on my set up. wont be able to dyno until next summer cause i have to pay for everything to put on first lol. but that is m plan of action. i have all my head parts all ready.

[SRspoolin]

so whats the deal with hybrid turbo's? whats good about em and not so good?

i emailed the dude about teh t3/t4 turbo and its a hybrid. will that be better to get full boost at low rpm's and higher hp numbers? as you can tell i dont know a whole lot about turbo's...

[CMG]

When the OP said Cobra MAF, is that the Ford Cobra or a brand name? If its the Ford one, how does it benefit? Is it hard to wire up?

Thanks

I'm pretty sure he's talking about the forg mustang cobra. I believe you can use a stock MAF, and also granatelli motorsports makes cobra MAFs that are huge.

[codyace]

Sorry guys, long time since my last post over here! I hope to clear up a few things, and have responded to each thing via quote.

so say i get the same mods as him (thread starter) except i get the t3/t4 50 trim .63a/r, ill have full boost exactly like his and right around the same hp numbers he does?

if not, what will be the biggest differences between the 2871 vs t3/t4 50 trim .63a/r?

Remeber there are two different 2871r turbos (.64 and the .86) and both are very differnet animals. I think the .64 housing IS the ultimate street turbo out there right now for our cars. Quick spool, great power potential, and no need to build the engine to high heavens to withstand it.

the AGP 50trim t3/t4 IMO is a better replacement for the gt2871r .86 housing. It has equal flow, and typically produces a teeny bit more top end power, at the cost of spool and low end torque.

With that said however, my setup is fantastic for HPDE, easily capable of an 11 second pass, and is just as fast as 500 whp Domestics on the street. Having the easy of install of the t2, using stock stuff like the t2, and having more grunt are all huge advantages over the top mount t3/t4 (and all of the issues assocaited with them)

Price certainly is in favor of the 50 trim.

If price is a cocnern, moding cars shouldn't be your hobby. Not meant to be rude, just my opinion. You don't buy cheap 25 cent condoms do you? Same should be said with automotive part purchases.

so i would need it honed to get 375whp wit hthe .64. i read that tubular manifold can help with spool up by about 400rpm's so wit hthe 264 bc cams i am getting it should be aa pretty soild 375. right?

Tubular manifolds HURT spool, not help. They do sometimes offer higher top end HP potential, but in this case, no one can prove that they do. Plus who wants the worry of 'when will mine crack' with a tubular

for the op what diff are you running, wheel and tire setup, and are u on stock driveshaft....

Myles

I just recentl put in a 4.6 diff (wow awesome....and affordable if you use an Xterra SE front diff as the doner)

Wheels are Z33 Ray's 18's (track edition wheels), on 245/40 Federal 595's in the back. (225/40 Hankook Ventus RS2 in the front)

im hoping to give these numbers a run , 2871r 64. tomei head gasket, tomei throttle body , arp studs,, thermal intake gasket bc springs and retainers, ras, hks step 2 264's, came gears, greddy intake mani, greddy vspl, synapse external wastegate, mr exhaust mani and o2 pipe, greddy emanage ultimate, MAP setup, and AEM ALKY injection..... should have it done and dyno before end of month, just waitin on intake mani, and some aluminum piping..... any info or suggestions are always appreciated

Things I'd change:

Dump the HKS cams in favor of Jim Wolf S3's. This will also elimate need for all of that other BC chinese crap in the valvetrain, just waiting to fail.

I would also not bother with the MR tubular at all. Extrude the stocker, and coat the stocker.

I wouldn't use the MR o2 outlet either. Use the greddy. Much better design, no splitting issues.

Can't say anything about the Tomei HG, but I strongly prefer the ApexI

Not that I saw, but from what I understand, the wizards at XS engineering have been doing 400whp sr's with 2871r .64 turbos for some time now.

Ex XS, now Cosworth GURU Eric Hsu did claim that, but never showed any other examples. HOWEVER I have no doubt in his claims. To use a line from his blog, he certainly builds 'buff' cars.

i was under the impression running my external gate will add power, the cam gears will add to my driveability, and the alky the my smile factor

I ran cam gears in the car, as per direction of some OG FWD sr guys, and noticed much less top end then I liked, with only a minimal gain in the torque department. Granted all *** dyno, but I believe mine to be pretty calibrated. No difference in daily drivability either. JWT cams rock rock rock right out of the box.

External gate should theoretically enable more HP potential, but gains sometimes aren't seen in the 'peak', but moreso in the 'overall', or total area under the curve. I will be upgrading this over the winter.

And Meth rocks. My JWT ecu has it programmed in, but I will finally be installing it this winter as well.

so whats the deal with hybrid turbo's? whats good about em and not so good?

Hybrid is an old term we used to use when all the rage was sticking to4b compressor covers on our t3's haha. Every turbo is essentially a hybrid in this day in age, unless they claim 'straight t3' or 'straight t4'

I'm pretty sure he's talking about the forg mustang cobra. I believe you can use a stock MAF, and also granatelli motorsports makes cobra MAFs that are huge.

They def make nice stuff, but I can't say for sure they work with JWT ecus. JWT offers OEM Cobra MAF (90's Fox body MAF cobra) and 90mm Lightning MAF support.
Modified by codyace at 12:32 PM 12/11/2007

[idahotuner]

aw. well i allready have my tubuliar manifold, and i have a gready intake manifold.

i want ot oknow about this turbo that you say is better then the g2871r. but still a t2.

the AGP 50trim t3/t4. where do you get that.i would jsut like more info on it.

[codyace]

aw. well i allready have my tubuliar manifold, and i have a gready intake manifold.

i want ot oknow about this turbo that you say is better then the g2871r. but still a t2.

the AGP 50trim t3/t4. where do you get that.i would jsut like more info on it.

No no, I guess my comparison should read that a AGP 50 trim t3/t4 would be a better choice IMO than .86 housing 2871r. I still think the 2871r .64 is better than both of them cobined.

I also thik that a nice 50 trim from AGP will equal or be very near a 3071r.

Sorry about that, I'll edit my post above too

[idahotuner]

aw. well i allreayd have a megan racing manifold and a greddy intake. and bc 264 cams and springs. apexi 1.1 mm headgasket arp head studs new valve seals. and i want 400 whp and about 300lbs of torque. i wanta pretty flat toruqe curve to that would be great.

[codyace]

aw. well i allreayd have a megan racing manifold and a greddy intake. and bc 264 cams and springs. apexi 1.1 mm headgasket arp head studs new valve seals. and i want 400 whp and about 300lbs of torque. i wanta pretty flat toruqe curve to that would be great.

I think you'd be close, really dependent on the tune you go with (or who tunes your car)

[idahotuner]

i was planing on an enthalpy rom tune

i know my fuel system will support more then 400 hp no problem..

so i would be close with the .64 or the .84

[240sxHitman]

i like your set up and when i get my sr ill be able to have a set up that produces around 400hp also.

one question though, the 60lb injectors are the completely different from an injectors rated in cc's?

[codyace]

.64 housing like me.

.86 sucks, to laggy

I prefer JWT rom tunes, but Enthalpy is good stuff too!

[idahotuner]

sweet. that helps me decided. i will go with the .64 and did you just get a rom tune or did they do it o na dyno.

[Kalypso]

well done but

because i don't know i must ask.

the 60lb injectors are the completely different from an injectors rated in cc's?

- [ Mototron 60lb injectors ] what size would 60lb injectors be as cc's, 370cc/500cc ?

how much did you spend on your ->

ECUCamsMAFGT2871r .64 turbo intake manifold


Modified by Kalypso123 at 1:34 PM 12/14/2007

[idahotuner]

wel l ican tell you how much i am planing on spending on thaty stuff.

rom tuned ecu - $500Cams. 264 BC- $250Z32 MAF - $135gt2871r .64 - $1100-1300Intake Greddy manifold - $480destch werk 740cc injectors -$480Bc cam springs-$150megan racing exhaust manifold - $139

[codyace]

sweet. that helps me decided. i will go with the .64 and did you just get a rom tune or did they do it o na dyno.

Rom tunes are ECU tunes.

I prefer JWT, but Enthalpy has good tunes too! These are the only two reliable and real deal rom tuners in the US that offer mail order tunes.

http://www.jimwolftechnology.com

http://www.rsenthalpy.com

[codyace]

well done but

because i don't know i must ask.

what size would 60lb injectors be as cc's, 370cc/500cc ?

It's easy, and could have been answered in google.

From RC Fuel Injection Website:

lb per injector To convert cc / min to lbs. / hr. - Divide by 10.5To convert lbs. / hr to gal. / hr. - Divide by 6To convert cc / min to gal. / hr. - Multiply by .015873

how much did you spend on your ->

ECUCamsMAFGT2871r .64 turbo intake manifold

For cams and ecu: http://www.jimwolftechnology.com. Check them for pricing.

Maf: Buy new, or find used on our forums (or other forums classifieds)

Turbo and Intake: Purchase any of NICO's wonderful vendors, and shop around for the current average/best pricing. We've got some good shops as vendors here, so be sure to check them all.

[Kalypso]

Thank you

[Emperor_Tha]

Rom tunes are ECU tunes.

I prefer JWT, but Enthalpy has good tunes too! These are the only two reliable and real deal rom tuners in the US that offer mail order tunes.

http://www.jimwolftechnology.com

http://www.rsenthalpy.com

import intelligence just came out with a chip ecu. they are able to tune your car more precisely on the road. you dont have to worry about running rich or lean.

[idahotuner]

sweet enthalpy i heard wasa closer tune. but for my setup. i am still not sure which one i will get. i think i will cal leither palce and decided from there