I would like to see the 7064 results. Would this be closer to a green sized turbo?

 

Leet, power looks awesome.

What are you using for boost control?

 

I believe it, I just wished you lived closer so I could go for a ride

 

mbc

 

Leet, I bet a set of GSC S3's would really wake that car up. I don't think you'd lose a significant amount of spool considering you're running a stroker. Even if you ran S2's I bet you would hit peak torque at the same RPM and pick up a few more ponies out the top

I'm not sure how I'd feel about running a Magnus V5 like R/T suggested. Aaron and the English crew seem to have great luck with them though. But having to buy a new UICP was always a turn off for me. All in all, I'm very jealous of the set up. Good luck with it and have fun.

 

Yah, I thought about it. I really don't need it now. There is a lot more power in this turbo. I'm happy with how it sits.

 

buschur head too, or stock? either way, im almost scared what my 10:1 2.2L with an 8374 and big cams will make for power!

 

Just holding boost looks like it would make a pretty big difference on the torque curve above 6000. HP would flat line instead of actually dropping off anyway which would have a nice little impact on the butt dyno.

Why not use the BCS that's on the turbo?

 

It's probably running out of steam on that 2.3l...

My experience with the Magnus resulted in stellar response with exceptional top end improvements. I only recommend it because of my own experiences. If think about it, your spool is dictated more by your turbine rather than your post turbo setup. All about getting energy to the turbine wheel. Bigger fmics don't murder spool and neither should large plenum ims. The runner length will shift the helmholtz resonance frequency, but as per my testing it allowed the car to kill at 8k (72whp!).

Ive been fabricating intake manifolds and dyno testing them since 2002, pretty much non stop. The Magnus v5 IMO is soo freaking awesome I see reason for me to waste the time trying to fabricate better.

Think about the system and it'll make sense.

 

I'm sure it is running out of flow, pretty evident really based on HP/psi as the boost climbs.

BUT Just look at what the power does at like 23 psi (5500 RPM on second line up, 8000 RPM on third line up) and you can tell if boost held solid, HP would hold too. Just pointing out boost drop seems to be impacting the torque curve and better boost management would likely provide less torque drop at high RPM. Near 50 HP at that boost level would be gained just by keeping boost flat.

 

Of course. If you're going to do it... do it correctly haha

 

Right, but I'm just going to point out that more boost does not always equal more power

 

leet, what compression is that motor running, also how much difference in spool do you see with e85 vs. pump. I've always had my eye on a 7670 for my Audi and now I know for sure its what I want, with 2.7L and 9:1 comp I'm hoping for 25psi in the mid 3s, can't wait.

 

10:1 and I don't run pump sorry Only on e85. It might get a 100 tune( in the event I don't bring enough to the track) as well.. But it won't see pump.

 

You can pretty clearly see in fact that more boost does make more power in his chart.

Is this rocket science or something?

Look at his chart, if the car simply held a peak boost level (instead of peaking then falling) it would make the HP/Tq curve considerably better. I'm talking a peak of roughly 25 psi is what it looks like the turbo can hold out to 8000 RPM. Hit a peak boost of 25 psi and hold it to 8000 RPM and it would make for a fairly flat HP curve above 6000 RPM, instead of falling off on HP like spiking a higher boost pressure and letting it fall to 25 psi.

Obviously spiking higher and falling giver you more power every where, just pointing out that the torque drop isn't as bad as the chart makes it look because better boost control could fix the issue.