low compression blown alky experience

Have you/car you crew on, run a nitro motor (low compression 7-8/1) on straight alky? I understand some of the outlaw altereds run alky, small percentage of fuel or a good load (w/low compression) depending on the show they are booked into. thanks

 

Wondering the same thing myself...

 

The answer is BOOST

 

I know of a 555 BBF that runs blown alky (8/71) with 8:1 compression. It runs fairly well. I don't believe they have ever 'gone after it', as they run an index class (9.60).

 

You can run as much as 40% nitro with that compression and 40 pounds of boost max.

 

i run a small block chevy 383 with 8:1 compression on a 8-71supercharger 10% overdriven making 22 lbs boost in a dragster. Runs 7.59 at 173mph. 60 foot times 1.08 to 1.13 leaving line at idle around 2000 rpm. with mild parts in motor ( heads and cam)

 

1 combo i had, was 7.2 :1 35 psi , twin turbo , on alky, 355 cubes , sbc . went 7.2 @191 at 1900 lbs in altered...,


wide, wide tuning window.......