Ahnold

I made 340whp on a Dyno Dynamics with meth (AP1). I also gained 10whp by switching to an AEM 3x9" air filter. The greddy filter is trash...

S2KCHRIS305

Im on e85, boosting 13.5psi , dyno was on dyno jet and that was power to the wheels, stock s2ks were getting 190- 205 on that dyno on a S2k dyno day. I can post dyno graphs

S2KCHRIS305

thats good numbers , thats a lil more than 360 on a dynojet. what setup are you running? (exhaust, psi, injectors, fuel, etc.)

Ahnold

3" turbo back exhasut, 15psi but tapers off to 10psi near redline, RC550's (fuel pressure bumped up a bit), 76mm TB, 91oct fuel with meth. PRetty much maxed out on this turbo

S2KCHRIS305

3" turbo back exhasut, 15psi but tapers off to 10psi near redline, RC550's (fuel pressure bumped up a bit), 76mm TB, 91oct fuel with meth. PRetty much maxed out on this turbo
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Not really you can hybrid that turbo. Rebuilding it with a bigger compressor wheel . That should give you some more power, also I don't know why no one else has tried making a better manifold for this kit, something similar to the greddy manifold, the pfabs manifolds design sucks, I got more power with the greddy manifold. The turbo rebuilt to a hybrid, a new custom manifold , 3inch exhaust and e85. I can see that setup that hit the 400s wheel horsepower.

Chris_Lum

$3,999 shipped for a brand new kit from Ptuning; https://www.s2ki.com/s2000/topic/934...-3999-shipped/

Almighty-Si

I've played with the GReddy kit A LOT...though it was for my Civic, I'm sure the problem with the S2000 kit is the same. It's the crappy manifold design and the internal wastegate. On my Civic even at the stock boost level the pressure would fluctuate, though slightly, fluctuate all the same. The flapper on the exhaust housing is too small which causes the spikes. Some people have ported the hole behind the flapper and it helped with the spiking problems. I decided to go the extra step and just go all out and weld an external wastegate flange to the manifold and use an external wastegate. Unfortunetly, I screwed up that process and drilled through the manifold. So I had a ramhorn manifold made with external wastegate flange and a 2.5 inch downpipe. My results are as follows...

This is a dyno sheet of the stock GReddy kit at the stock 7psi wastegate setting...



As you can see, the graph is sloppy to say the least. This is due to boost pressure fluctuating between 5 and 8 psi.

This dyno sheet is is after I switched the manifold, converted to external wastegate and the new downpipe...Also boost is set at wastegate spring pressure of 5psi



Well, proof is in the pudding. 30whp power increase with 2psi less boost pressure. I think, if I would have successfully converted the stock manifold to run the external wastegate, i'm sure I would still have seen a good increase and for sure would have had much better control of boost pressure.

S2KCHRIS305

Wow nice results, I've always wanted to see what a different manifold would do in this kit, that great power for a greddy kit, only manifold different then the greddy manifold for our s2ks is the pfab manifold. And the pfab manifolds design is terrible , I made more power with the stock greddy manifold, I'm definatley gonna try doing the same that you did to my s2k soon . How did you bypass the internal waste gate on the turbo?

Almighty-Si

I just removed the internal wastegate and welded the flapper on the turbine housing closed...simple as that.

k00leo

Question about the oil feed line for this kit.

I noticed that you are suppose to supply oil for the turbo from that sensor that comes off the block.
is it possible to just run an oil feed line for the turbo from the oil re-location system? or possibly from an oil sandwich plate?