FP RED for evo 8 & 9

[EclipseGST]

Hell of a tq jump between pump and race gas and only 8psi.

Gained 64ft/lbs tq and only 30hp. The car has to be pretty badass on the street.

[scheides]

stikx, it's not a BR 3076, it's an HTA3076, made by forced performance.

Buschur has been doing a lot of 30psi tuning on pump gas lately, usually on built cars with AEM. From the numbers I've seen, similar numbers, usually with a tad more torque, are obtainable form more stock-ish cars with the stock ECU and alky injection. His bro's car with an IX turbo and similar mods to mine made ~370whp on their dyno, not far off from my car on alky w/ ix turbo. If that holds true, bolting this onto my car should yield ~60-70whp, enough to stretch my rod bolts and install skylights for my oil pan. :P

[Matt D.]

Is it me or does going to race gas and adding 8psi for a gain of 30hp and 64tq not seem like much?

[scheides]

True, but he's just running a ported stock intake manifold. the +64wtq makes sense, but the +30whp is a little weak. Thus the 'need' for SMIM's and/or those Indy v0, v1, v2's, etc. Also, this example, the turbo is completely unported, which has been said to add significant power gains up top on a setup like this.

[Matt D.]

I'd like to see a flatter torque curve, but the power curve looks healthy.

[scheides]

More info on the turbine wheel from FP:
"When we made the new turbine wheel, we made it with a clip angle in it already. The new turbine wheel is about 8mm larger than the one in the Green model turbo, and a better aero. Turbine pressure took a HUGE drop as a result."

MattD, the torque curve is pretty damn flat on the pump gas run above, have you seen the torque curve of a stock turbo? It falls off like a brick in the ocean after peak, but the car feels smooth and powerful none-the-less. Magic, I guess?

[Matt D.]

MattD, the torque curve is pretty damn flat on the pump gas run above, have you seen the torque curve of a stock turbo? It falls off like a brick in the ocean after peak, but the car feels smooth and powerful none-the-less. Magic, I guess?
I guess it isn't THAT bad, it just didn't have a nice big arc like the power curve.

[Halon]

I thought Buschur proved beyond a doubt that his stock IM's performed better then SMIM's. So how can that be what's holding him up?

[scheides]

You're confusing the different manifolds.

These last graphs are on ported stock IM w/ 65mm ported stock TB. This is what I have on my car, and basically gives the whole power curve a 10-15whp bump up, not really geared towards improving top end power specifically, other than that.

The graphs in the original post feature the "Indy" or Wilson Manifolds uber-modified stock manifold that rivals the best SMIMs out there.

So, if he were to switch to the Indy v0, v1, or v2 manifold, he would see more power up top w/o a doubt, but induce a little bit higher boost threshold (i.e. later torque), depending on the version. Or he could go with a SMIM and see similar results.

Side note, the second car (Trent) w/ 470whp went to the track last night:

"First pass went 10.57 with crappy launch (it bogged a little) Second pass was a 10.51 @ 132 Third pass was 10.51 @ 133 Fourth pass was another 10.51 Then i looked at the log at 2 step and thought the car had a little bog, The rpm was dropping to like 3800-4000 GOOD THING THIS TURBO SPOOLS UP QUICK So i Raised the 2 step and next pass was a 10.39 @ 134 with a 1.47 60ft. Was happy but just had to back it up so the next pass was another 10.39 @ 135 with a best 60 ft. to date a 1.4500"

consistent 10.5's on a stock-appearing turbo in a full-weight car, pretty freaking redonk!

[Halon]

I'm not referring to the Wilson ones, I was referring to Buschur's modded stock IM's that he proved on his dyno to outperform a SMIM maybe 6 months back, remember?