I have a built B20/vtec and it makes 216hp and 154 tq.
i know i can't turbo it, but is supercharger still an option?
i know i have way to high of compression to turbo it, and i dont really want to get back in the motor and change a bunch of stuff out...

sorry if this is a noob question, but i searched and didn't find anything...

 

how high is the compression? If it's not insane, you can still boost it, just at a pretty low psi.

What did you want to go with? JRSC?

 

like 12.8 to 1 or 13.1

i think the chamer compression is like 280 across....

 

no if you do boost in anyfourm youll ahve to sit at like 1-2 psi to not blow **** up you cant boost (supercharger still makes boost for those of you who think boost only comse from turbos)

 

The reason you can't turbo something with high compression is the same reason you can't supercharge something at high compression.

A turbocharger (or supercharger) - any form of FORCED induction RAISES your compression. That's why you use a low compression setup - so you can actually use regular pump gas when you're at full boost.

The same thing will happen with a supercharger as it will with a turbocharger - your compression will go up.

So no, supercharger is not a viable option of you're concerned about the compression being raised too much and not using pump gas.

With a good tune you can run low psi on a turbo or supercharger even with a high compression system. Though numbers are numbers - the compression will eventually get too high to run w/o additives or a higher octane fuel (higher than sold at pump gas stations).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cmasonrun &raquo;</TD></TR><TR><TD CLASS="quote">I have a built B20/vtec and it makes 216hp and 154 tq.
i know i can't turbo it, but is supercharger still an option?
i know i have way to high of compression to turbo it, and i dont really want to get back in the motor and change a bunch of stuff out...

sorry if this is a noob question, but i searched and didn't find anything...

</TD></TR></TABLE>


This question would be better asked in the forced induction forum. How built is your engine? Are you running forged pistons? sleeved block?

Boost is boost in any form including nitrous. You don't sound to sure about your actual compression ratio and knowing how many psi a comp gauge reads is completely useless. You need to have your head cc'd and know what your piston specs are to calculate your comp ratio properly. You can run high compression with forced induction providing your engine is properly configured and tuned for the level of boost you will be running. The margin for error when tuning becomes very thin when running high compression with boost on pump gas.