Longtubes+Blower=?

[NO SLO PK]

Originally posted by Skyman:
Ive seen a few people running high compression with boost, and it seems to work out ok on lower boost apps. Hmm... What If I milled my heads, as I'm only going to run 9psi.

Sky, high comp. and boost = NFG for a street car. I've got 10.5 compression with 11 lbs., and it always wants to detonate, even with a 3 row intercooler. I blew 2 head gaskets, and only with this setup.

Next weekend I'm dusting off my old Edelbrock 2.02 heads to bring the compression down to 9.3 which should be more streetable.

My personal experience and those of my friends and shop owners is that the long tubes are worth the effort and give good gains over the shorties.

With the induction improved via the blower, the exhaust becomes more of a bottleneck. I think you'd be happy with the longtubes.



------------------
'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.