400 whp Stock block Redtop - GT2871r .64 power!

[MustangManV6]

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Thanks a lot broha

[Poor_S13_Driver]

Awesome build my friend. I am very curious about swain coating and just went over their website. Sounds awesome. If you dont mind me asking how much was the coating for the exhaust manifold?

Another thing I was curious about is your JWT tune. I noticed you dont have a SAFC like I see most other people using to correct the notoriously rich tune associated with his ecus. Yet it seems like your car is running on something very precisely tuned to be making those awesome numbers. Thanks again

[FusionR300zx]

bump this sickk setupp!

[codyace]

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

It's an actual Ford Cobra MAF (p/n: F1SZ-12B579-A). It's been the MAF of choice at Jim Wolf Tech, and is easy to find. Wireing it is extremely easy as well! You do however need the ECU programmed to except the larger (3'') maf however. (FWIW: JWT also offers the 90mm Lightning Truck MAF program as well.

Info on wiring it up: http://www.jimwolftechnology.c...T.PDF

Awesome build my friend. I am very curious about swain coating and just went over their website. Sounds awesome. If you dont mind me asking how much was the coating for the exhaust manifold?

I honestly forget. I got in on a group deal, and then also recieved a military discount...I'd like to say in the 100ish range...

Another thing I was curious about is your JWT tune. I noticed you dont have a SAFC like I see most other people using to correct the notoriously rich tune associated with his ecus. Yet it seems like your car is running on something very precisely tuned to be making those awesome numbers. Thanks again

SAFC's are simply a 300 dollar way to hack up your harness. For everyone that thinks they need it to correct a 'rich' ecu, there are an double amount of those who have screwed somtehing up by not having them tuned.

Out of the box, JWT (and Enthalpy) rom tunes ARE tuned on the conservative side. Both companies realize that the key to staying in business, is to offer products that DO NOT blow up engines, and because of that tune out ECU's that go in the 11-11.7 range at WOT. Can more power be made at 12-12.3ish - certainly, but a faulty setup on crap parts can be the demise of that fine of a tune (and thus bozo's would blame the ROM tune instead of their thin wallets and cheap part selection)

The advantage of the JWT tune is that it's plug and play, and won't ever blow up your engine. My tune is the first of it's kind for the Mototron 60lb injectors, and it's damn near spot on. I will be datalogging another dyno run in the spring after the installation of cam gears, and sending the log file BACK to JWT for a final 'clean up' sort to speak (if it even needs any), and for the tuning in of a launch control (and for my methonal injection).

Would I need a retune? Certianly not. Car idels at 14.4-14.7, and goes in the 11.4 range at WOT...and is tuned for 91 octane (i'd rather be safe than sorry). I'm hoping that a retune with cam gears will gain me some additonal low end torque (I'd love to have 350 ft lbs), but I'm doing the re tune specifically for the launch control and water injection

[Poor_S13_Driver]

Thank you very much for the clarification And again congratulations on a fine build

[SilverSurfer]

New to the forum...

Great/informative thread. Thanks.

[spoolinonyou]

how much boost were you running when you made 400whp?

[FusionR300zx]

bump this to the top so it's easier to find. this should/could be a nice sticky for a GREAT 400whp setup.

[redtop91]

+1 to that. Quick question to the OP. While 400whp is an amazing feat on the .64 I have a qualm with the wheel torque numbers. Why so low? Was it tuned for max hp at the expense of torque? Or was it a balanced tune? I'm curious because I am mimmicking your setup.

[FusionR300zx]

bump it upp!! loll

[DrifterProdigy85]

+1 to that. Quick question to the OP. While 400whp is an amazing feat on the .64 I have a qualm with the wheel torque numbers. Why so low? Was it tuned for max hp at the expense of torque? Or was it a balanced tune? I'm curious because I am mimmicking your setup.

Torque just seems "low" because of the Intake Manifold. The Greddy Intake Manifold is larger and is meant to flow more air at higher RPM which keeps torque higher towards redline which makes for more HP. Stock Manifold flows best at midrange which at high rpm the torque dies off and so does the HP. Remember, HP is just a calculation of an amount of torque over a period of time.

[codyace]

+1 to that. Quick question to the OP. While 400whp is an amazing feat on the .64 I have a qualm with the wheel torque numbers. Why so low? Was it tuned for max hp at the expense of torque? Or was it a balanced tune? I'm curious because I am mimmicking your setup.

Tune is a balanced tune...not for high hp or trq...I wanted somethin safe for HPDE days, and for the street. 330 ft lbs is (IMO) on par to where a smaller t2 based turbine turbo should be.

FWIW: The car has PLENTY of low end power. The cam gears I'm adding will increase it even more so. Im a torque guy to begin with, not a HP one. Response response response

Torque just seems "low" because of the Intake Manifold. The Greddy Intake Manifold is larger and is meant to flow more air at higher RPM which keeps torque higher towards redline which makes for more HP. Stock Manifold flows best at midrange which at high rpm the torque dies off and so does the HP. Remember, HP is just a calculation of an amount of torque over a period of time.

I'm goin to disagree. After dynoing my pals turbo sentra with damn near similar mods, we found that both cars ended having the exact same spool up (he has stock intake) and trq numbers until the top end, where the combo of intake and turbo compressor choice came through. I think with these smaller based turbos, that the greddy IM isn't killing low end like it does on the bigger turbo setups, mainly because we're not fighting any lag.

[DrifterProdigy85]

Need a better comparison IMO. There two differently setup motors. Dyno yours at 17psi to match your friends 17psi and see what torque is. Higher boost creates higher torque readings. And yours matches your friends torque @ 17psi from the intake manifold. If you would of had stock IM @ 20psi, you would have been more at 350tq.

[codyace]

Need a better comparison IMO. There two differently setup motors. Dyno yours at 17psi to match your friends 17psi and see what torque is. Higher boost creates higher torque readings. And yours matches your friends torque @ 17psi from the intake manifold. If you would of had stock IM @ 20psi, you would have been more at 350tq.

I really believe that's doubtful, really do. Even FWD guys aren't seeing gains/losses like that with O2 and O2 style manifolds when using such small turbos. I don't see a little t28 based turbo making 350 wheel foot lbs on a 2.0 without cam gears, and really spinning it. I understand the whole long runner = torque, but there IMO isn't enough volume in that manifold to support the long runers. Now what would be intersteing is the greddy plenum's size, with some matched longer runners

The new setup this summer will be tested at all sorts of psi levels

[S13FASTBACKSR]

i thought cam gears didnt make any power or torque gains..i thought they were pointless or bought just for more precision timing?

[redtop91]

I thought that too but a lot of the knowledge in this thread is far above and beyond me.

[S13FASTBACKSR]

lol well its what i heard so then i figured a good person to ask would be scott of enthalpy and thats pretty much what he told me, is that cam gears are just for more precise timing, they dont really make any power gains

[Deadrodent]

how would a lower gear ratio affect the powerband? let's say a 4.36? would you lose a considerable amount of top end power?

on another tangent, would an exhaust cut-out increase response?

[codyace]

i thought cam gears didnt make any power or torque gains..i thought they were pointless or bought just for more precision timing?

lol well its what i heard so then i figured a good person to ask would be scott of enthalpy and thats pretty much what he told me, is that cam gears are just for more precise timing, they dont really make any power gains

By advancing exhaust cams at a minimum (usually 2-3 degrees) you will always find increased low end torque and let the engine breath easier on smaller turbo/oem manifold. After looking into it, I have seen examples of this in FWD SR setups, and thought it would be silly to not try them out for their cost and at a miminum to keep manifold pressure lower.

Not to doubt Scott at all in anyway, but I've seen it work on 28RS setups with GTiR manifolds on Sentras....so I'm gonna go ahead and try on mine.

how would a lower gear ratio affect the powerband? let's say a 4.36? would you lose a considerable amount of top end power?

My car, being such a smaller respnsive turbo, may not like thoe 4.36's. I loved my 411's in my Mustangs/Trucks, but it may make 1 and 2 even more useless than they are....however I would love to try them someday for kicks.

on another tangent, would an exhaust cut-out increase response?

Supposedly yes, but we recently ran my pals Sentra with open downpipe, and saw NO noticable spool up or tranisient response gains. Maybe 100 rpm...maybe.

[DrifterProdigy85]

I ran 205/50-15 tires on stock rear which is basically the same as a 4.36 final on the 2871R .64. It accelerated like crazy. Topped out quick on the highway. I remember going 80mph in 4th, i would mash it and in a second or two id be shifting to 5th and a few seconds later id be up near 7krpm again. Cuts about 10mph off the top speed.

[redtop91]

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

[codyace]

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.

[redtop91]

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

[codyace]

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.

[srdub-t]

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?

[codyace]

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

[DriftSpecS14]

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?

[codyace]

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

[turbomrdeuce]

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

[codyace]

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 transmission or PAR gearsets?