400 whp Stock block Redtop - GT2871r .64 power!

Post by **redtop91** » Wed Apr 25, 2007 4:55 pm

Cody I failed to notice this the first 300+ times I read this thread LOL. Are you using cam gears?

Post by **codyace** » Wed Apr 25, 2007 5:31 pm

redtop91 wrote:Cody I failed to notice this the first 300+ times I read this thread LOL. Are you using cam gears?

Nada...will be putting them on soon and testing.

Post by **redtop91** » Wed Apr 25, 2007 5:48 pm

Would you be so kind as to post your findings? I'm copying you to the "T" LOL.

Post by **codyace** » Wed Apr 25, 2007 5:57 pm

redtop91 wrote:Would you be so kind as to post your findings? I'm copying you to the "T" LOL.

Will do. Gotta get the semester finished up first however.

Post by **srdub-t** » Wed May 09, 2007 8:37 am

would extrude honning the 64 a/r make it like the 86 a/r or what does it actually do? i know it said that it flows more but does it make you spool up slower?

Post by **codyace** » Wed May 09, 2007 7:45 pm

srdub-t wrote:would extrude honning the 64 a/r make it like the 86 a/r or what does it actually do? i know it said that it flows more but does it make you spool up slower?

The extrude hone simply smooths out the casting marks on the inside of the turbo...makes it glass smooth. Smoother housing causes the air to flow more effeciently, thus quickening spool up time.

It does not make the .64 into an .86 huosing...in fact i don't believe it even changes aspec ratio, as on turbine housings, they don't use as an aggressive procedure as they do on other cast parts

B+A

More pics: http://www.e-rak.com/cody/gallery/album188

Post by **DriftSpecS14** » Wed May 09, 2007 8:49 pm

hey sorry to jack your thread but my car jsut put down 394.4 RWHP and 348.3RWTQ my mods are..

Stock bottom end.

Turbocharger*: HKS GT-RS turbine GT2835R at 1.3 bar

Engine: s15 pistons, HKS internals, sard injectors 740'cc

HKS F Con V Pro fuel management

ill post up dyno sheets soon.

im jsut wondering the diffrence between my 2835r vs the 2871r. heres the specs on mineCOMPRESSOR:-Wheel- 56 Trim - 53.1 Inducer / 71.1 Major-Housing- 100 Inlet / 50 Outlet - 0.50 A/RTURBINE:-Wheel- 90 Trim - 56.5 Major / 53.6 Exducer-Housing- GT25 inlet / Outlet spec:Internal GT28 90 Trim; 0.86 A/R

any insight?

Post by **codyace** » Thu May 10, 2007 2:56 pm

I don't have any insight really...post up your graph so we can compare!

Post by **turbomrdeuce** » Thu May 10, 2007 4:05 pm

very nice set up and numbers kudos to you. Our set ups are very similar but im having my head machined for bigger valves and having the ports opened up springs retainers cams Intake mani etc

Post by **codyace** » Mon May 14, 2007 6:32 am

turbomrdeuce wrote:very nice set up and numbers kudos to you. Our set ups are very similar but im having my head machined for bigger valves and having the ports opened up springs retainers cams Intake mani etc

With all of that work, have you ever looked into Jim Wolf C1 cams? They would totally kick the snot out of my setup as far as torque is concerned:D

Also, with the b13, how are you addressing your transmisson issues? B15/p11 tranny or PAR gearsets?

Post by **turbomrdeuce** » Tue May 15, 2007 10:57 am

codyace wrote:
With all of that work, have you ever looked into Jim Wolf C1 cams? They would totally kick the snot out of my setup as far as torque is concerned:D

Also, with the b13, how are you addressing your transmisson issues? B15/p11 tranny or PAR gearsets?

I was thinking about the jwts but im just working on a budget here. Im running a jdm primera tranny and already 3rd gear is beginning to whine at low throttle, the main reason im not using jwt is so i can save up for a b15 tranny. Otherwise i cant wait for it to be done, traction is going to be interesting

Post by **idahotuner** » Tue Oct 02, 2007 7:37 am

just commenting so i can have this forum in my watched topics , so i can reread it

Post by **Mouse6933** » Tue Oct 02, 2007 11:24 am

wa wow wow. this just makes me even more excited to get my car done, will be running 2871r, and plenty of goodies, will pose dyno charts within the end of the month, im hopin i break 400+ with alky kit.....

one quick questions, these number were with your turbo internall gated?

Post by **idahotuner** » Tue Oct 02, 2007 12:42 pm

wouldnt an aftermarket tubular manifold work just as good if not better then the stock manifold with what has been done to it here

Post by **Wrxrick** » Tue Oct 02, 2007 6:44 pm

I'm assuming this was using the internal wastegate that comes standard with the turbo?

Post by **idahotuner** » Wed Oct 03, 2007 5:35 am

Well i hope it is the normal .64 cause i am trying to copy this setup. maybe not quite as big numbers but at lest 375. should be possible

Post by **SRspoolin** » Wed Oct 03, 2007 11:11 pm

whats the 2871 .64a/r compared to the t3/t4 with a .63a/r? i want a turbo that will have full boost at the same rpm as yours and make just around the same power, will the t3/t4 be right around the same? if not, what would be different?

the reason i ask is because someone is selling a brand new t3/t4 for $600 and thats half the price of the 2871...

edit: and im talking about the t3/t4 having the extrude honed also...

Post by **DrifterProdigy85** » Thu Oct 04, 2007 12:52 am

The only tubular manifold thats equivelent to the stock one being Extrude Honed is the Tomei and Ichiba Version II Manifolds. The equal length styles hurt low end response a little while gaining a good bit of top end. T3/T4 50 Trim .63 A/R is gonna be the closest thing to the 2871R .64. T3/T4 might make higher numbers though. To copy this setup, your gonna have to send your Turbine Housing out to get Extrude Honed, its not a totally stock .64 Turbine Housing. 375whp is definiltly doable though.

Post by **SRspoolin** » Thu Oct 04, 2007 1:19 am

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?

Post by **drmerdp** » Thu Oct 04, 2007 4:35 am

Price certainly is in favor of the 50 trim.

Post by **idahotuner** » Thu Oct 04, 2007 5:45 am

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?

Post by **slik_s13** » Thu Oct 04, 2007 9:04 am

[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!

Post by **drmerdp** » Thu Oct 04, 2007 1:16 pm

SRspoolin wrote: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?

Post by **Geno750** » Thu Oct 04, 2007 2:21 pm

drmerdp wrote:
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

Post by **Mouse6933** » Thu Oct 04, 2007 2:45 pm

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

Post by **Geno750** » Thu Oct 04, 2007 2:55 pm

Mouse6933 wrote: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.

Post by **Mouse6933** » Thu Oct 04, 2007 2:58 pm

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

Post by **Geno750** » Thu Oct 04, 2007 3:02 pm

Mouse6933 wrote: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.

Post by **Mouse6933** » Thu Oct 04, 2007 3:05 pm

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?

Post by **Geno750** » Thu Oct 04, 2007 3:11 pm

Mouse6933 wrote: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.

400 whp Stock block Redtop - GT2871r .64 power!

Re: (DrifterProdigy85)

Re: (redtop91)

Re: (codyace)

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Re: (codyace)

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Re: (Wrxrick)

Re: (SRspoolin)

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