Legally_Blown

I have a Vortech T-Trim supercharger and I think the smallest pulley I can get is 12lb pulley. My question is how would I be able to run my supercharger with 10.5:1 compression? What mods would I need to do to be able to run it?

Legally_Blown

[&:]

luckythirteen13

run 93 octane and low levels of timing. or you can get a methanol injection kit and and run a whole bunch of timing.

Legally_Blown

but what does timing have to do with the compression and boost?

Legally_Blown

???

contentsunderpressur

Just go with 5 or 6 lbs of boost with that much compression. You'll gain as much hp as a9.0 compression motor with 10 or 12 lbs of boost. Superchargers on ls1 engines only run 6 psi and produce a ton of power because the compression is so high.

393Bird

You can get a 3.8 upper pulley to slow it down, or put the car on E85, and turn it loose. Mine is 10.0-1 and will be running 15 psi on a YSi using E85.

luckythirteen13

everything. the higher the compression and the moreboost you run, the lower the level of timing you have to run to keep it from pinging

Legally_Blown

[&:]

4.6LPoppy

Yeah, detonation, it's called. I just grenaded a 2V with 9.5:1 at 12lbs boost because of the timing tune. The compression gets so high it thinks it's a diesel and detonates thefuel from compression heat with the pistion still on the way up. Results in a lost of scrap metal.