0C_Williams@RPM

We took the opportunity to dyno the engine prior to install. Bear in mind that the base engine is a 9.5:1 compression blower engine.

What makes it interesting is that you see how efficient Andy's kit is.

JMBLOWNWS6

Graph looks really good. What vortech headunit? You can have alot of fun at that power level

0C_Williams@RPM

that was a YSI - the owner will ultimately push the boost up. Heck, with the current pulley we could have made more by running it up to 6800.

JMBLOWNWS6

Way more in the tank! With a 3.250 I hit 900. Im so impressed with the YSI.

FloydSummerOf68

Those are nice numbers with only 9.5 compression.

700+ is an animal on the street

0C_Williams@RPM

thanks...the customer loves the power delivery...

0C_Williams@RPM

You are so right -- the YSI is a great supercharger

Res1cue

Heads??

0C_Williams@RPM

Trick Flow - 6-bolt cathedral

Res1cue

I have a YSI on a 403 @ 9.6:1 with very similar NA numbers. Max psi was about 750rwhp at 17.5lbs. I am running the 243heads with only seat work though.

17.5lbs on your setup look like it would be in the high 800's. I was told by the motor builder the heads were causing a restriction resulting in the lower numbers.

Josh@AandASuperchargers

Great results Charlie!

0C_Williams@RPM

thanks...we couldn't do it without you guys.....

HC Mechanic

Really nice torque curve for a F/I setup, looks like fun!

Always nice to see comparisons too!

venomws7

Very nice numbers on both N/A and after S/C the gains are amazing with only 11psi..
Great work RPM and A&A like always