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-   -   SC Turbo Conversion, The Result (Dyno!) (http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/629769-sc-turbo-conversion-result-dyno.html)

jcc911 11-17-2011 03:57 AM

Wheels my friend. :D

voitureltd 11-17-2011 05:51 AM

Quote:

Originally Posted by jcc911 (Post 6376053)
Wheels my friend. :D

Also I have heard that C.S Motorsports dyno is very conservative.

jcc911 11-17-2011 07:19 AM

Conservative as I may acutally have more :) or less :( HP?
Either way am happy, just need to get it to spool quicker.

voitureltd 11-17-2011 08:43 AM

Quote:

Originally Posted by jcc911 (Post 6376377)
Conservative as I may acutally have more :) or less :( HP?
Either way am happy, just need to get it to spool quicker.

You may have more HP. I have dyno sheets from other dyno's on the same motors and Chris/ Austin's numbers seem very conservative.

911TT33 11-17-2011 12:20 PM

Quote:

Originally Posted by jcc911 (Post 6376053)
Wheels my friend. :D

Cool... So that's approx 340hp at the crank. Pretty cool for a low boost bolt on job. You could expect a bit more if you go EFI With pressure sensing :cool: I'd say another 15-20hp at a guess.

I'd recommend a GT30R if you want to maximize response. A great turbo, and a perfect match for the 3.0 ;)

wjfk32 11-17-2011 12:26 PM

I would guestimate approx. around 285hp. 12%

NICE. :)

Tippy 11-17-2011 12:27 PM

Quote:

Originally Posted by 911TT33 (Post 6376946)
Cool... So that's approx 340hp at the crank. Pretty cool for a low boost bolt on job. You could expect a bit more if you go EFI With pressure sensing :cool: I'd say another 15-20hp at a guess.

I'd recommend a GT30R if you want to maximize response. A great turbo, and a perfect match for the 3.0 ;)

34% driveline loss? :confused: :) I was thinking around 300 crank.

And yes, the GT30R sounds like a good match for the 3.0 from what I've read.

911TT33 11-17-2011 03:59 PM

Quote:

Originally Posted by Tippy (Post 6376963)
34% driveline loss? :confused: :) I was thinking around 300 crank.

And yes, the GT30R sounds like a good match for the 3.0 from what I've read.

Oops sorry! My math sucked! Yes, based on a 15% loss across the transaxle, that should net you ~300HP at the crank :cool:

Still, not bad for only 0.4bar of boost! I still think he can run 0.7bar safely when tuned properly.

Yep, a GT30R BB turbo with a 0.82 A/R hotside should be a very nice and fun turbo for a 8.5:1 Turbo SC! Couple that with speed density EFI and a free flowing exhaust :eek:

jcc911 11-17-2011 04:02 PM

I am running 0.5 bar. I subbed to your msd thread, interested to see how that goes.

911TT33 11-17-2011 04:13 PM

Quote:

Originally Posted by jcc911 (Post 6377428)
I am running 0.5 bar. I subbed to your msd thread, interested to see how that goes.

OK, so at 0.7bar (3 psi more), I would guesstimate you'd gain another (~40HP +/- 5HP) :cool:

Yeah, I'd be interested to know how well the MSD 6ABTM works on a SC turbo conversion with the BITZ EFI kit.

Might actually be more cost effective to run a basic standalone aftermarket ECU, like an Autronic SMC/Haltech/AEM/Wolf EMS with full fuel and ignition control instead of the BITZ kit + MSD 6ABTM :rolleyes:

jcc911 11-17-2011 04:32 PM

Seems like an easy 40 hp, I may even have the springs already, but am hesitant to go any higher right now. I guess I have 5+ mo. to think about it.

911TT33 11-17-2011 04:53 PM

Yep, either way, it's got to be a blast to drive compared to stock NA trim :D

jcc911 11-18-2011 02:46 AM

Like I said, the only Issue I have with it, is that I have to wind the car out to finally ge positive press and guys have said I should start at 2200.

jcc911 11-18-2011 02:55 AM

And if you search for, I think, the conversion begins, it shows the route I took.

jcc911 11-18-2011 02:56 AM

Tony, do any of those guys around here able to do a smoke test, I wonder if the late spool is due to a leak?

patkeefe 11-18-2011 01:47 PM

Jeremy,
what turbo and exhaust system are you running? And, you do have a 930 intake, don't you?

jcc911 11-18-2011 02:53 PM

Yup 930 cis. Exhaust is 993 hes with flipped flanges and m&k y pipe.

patkeefe 11-18-2011 03:22 PM

Ok. You are obviously not making pressure in the lower RPM range. It doesn't appear that you have an overly rich fueling issue from the chart. Pressure is a function of how fast and what size the compressor is, and same with the turbine. I don't recall what you have for a turbo. You may be not making spool faster because of the turbine being too large.


You could have leaks between the compressor and the throttle butterfly, or down past there into the cylinders. Could be cam overlap..what cams are you running, SC? Did you do a leakdown on the cylinders?


There exist a lot of variables to this issue.

jcc911 11-18-2011 03:51 PM

Did not do a leak down. SC cams. Cam timing done by Ben not sure what that is. Turbo is a 7200.

jcc911 11-18-2011 03:55 PM

Would running my SC distributor have anything to do with it?


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