GMH300

So I've been told its not a good idea to run a supercharger with high compression. engine Can someone explain to me why this is? what problems it can cause?

I have a LS2 with LS3 rectangle heads which have been milled .030" which has my engine running at the standard LS2 10.9:1 compression ratio.

What issues would I have running a TVS1900 on this?
I see people running superchargers on the standard LS2 without any problems.

Thanks in advance for you help

LS1-IROC

iTrader: (4)

Lots of people run TVS blowers on high compression engines. GM even does it, that should tell you something.

dschmittie1

iTrader: (64)

People generally don't like to run high compression and boost. It makes the cylander pressure higher and can make it more pronned to detonation. You run a higher risk of popping a stock piston also. On a forged motor I wouldn't be worried about the higher compression

quicksilverado

iTrader: (8)

.030 is a lot of material to remove from a factory head. I would not push it to hard or lifting a head is in the near future.

redtan

iTrader: (5)

You won't have any issues, your comp ratio is not any higher than stock.

And it will take quite a bit of boost to lift the heads.

GMH300

Thanks for all the responses.

I only plan on running a basic 5psi so shouldn't be any problems.