1987 Grand National Stocker?

[JRyan]

Chad I think you nailed it right on the head there. Both with the newer stand alone fuel systems and with NHRA's ability to check and enforce the car. It would probably still be a pretty good combo.

Rick

[Chad Rhodes]

Originally Posted by JRyan

Chad I think you nailed it right on the head there. Both with the newer stand alone fuel systems and with NHRA's ability to check and enforce the car. It would probably still be a pretty good combo.

Rick

Unless their is something additional in the tech manual that isn't published, the specs listed in the blueprints are housing size, number of compressor impeller blades, and compressor inducer diameter. I think stock appearing externally goes without saying, but that leaves A LOT of grey area in that turbo, probably 100hp worth

[Bob Shaw]

When I was running a turbo Buick NHRA made me remove the turbo an disassemble it.
They had all the internal specs. This was in teardown at a national event.

[Chad Rhodes]

Originally Posted by Bob Shaw

When I was running a turbo Buick NHRA made me remove the turbo an disassemble it.
They had all the internal specs. This was in teardown at a national event.

but how long ago was that? and why wouldn't they publish that information.

[vic guilmino]

i am with Bob
nhra did the same to me
they have things that are not in the books
and i try to get them but it was a NO
i had no trouble with boost
15# on the line and 30 in the traps
stock tubro

[jmcarter]

Originally Posted by Bob Shaw

When I was running a turbo Buick NHRA made me remove the turbo an disassemble it.
They had all the internal specs. This was in teardown at a national event.

Perhaps after Ingersoll turned the Pro Stock ranks on their ear?

[keith ohanesian]

Both the non intercooled and intercooled combos were horsepowered by non stock turbos. Nhra had no idea what to look for and thought a stage 3 turbo was stock. Apparently Dave Shultz before he died had schooled NHRA on turbos. After that they had all the turbo cars in the barns. The Gallina's were the only ones that ran a motec engine management system that was incredible. Now there are really good systems out that would help the "drivability". Plus dual calipers. That engine would have to make 450hp to be fast and at 30 pounds of boost it could be done once or twice.