by loxxrider » Fri Jan 29, 2016 4:18 pm
It just depends what you are hoping for in terms of spool. The 3076 will make at least 15 psi by 3500 which will make decent power, but full boost will be closer to 4k under most conditions. You can make the same power and spool a lot faster with more modern options. Of course, the cost is higher. That's the trade-off.
If it were me, I'd be looking hard at an EFR 6758 or 7163. Both turbos will put you around 400 whp on race fuel, one with more headroom than the other, so you just have to pick whether you want more spool or more power. Personally, I'd run the 7163 or 7064 on a quick spool valve with race gas. I think that'd be a ridiculously fun track setup. Not cheap though of course.
Also, watch out for e85. If you're just running at the track and bring your own drums, why not run a real racing fuel? E85 is cheaper, yes, but I have my doubts about it's ability not to get water logged over long periods of storage. Its a great fuel other than that and the fact that it isn't consistent at the pump. I guess you wouldn't be storing it if you were running in a 24 hour race though. You'll probably use it all!
-Chris
'91 Audi 200 20v - Revver/BAT project
'91 Audi 200 20v Avant
'01 Anthracite M5
'90 M3
'85 Euro 635csi
'12 X3
E34 530i (maybe rear-mount soon)