751 RWHP on 93 Octane

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May 26, 2006 | 10:18 PM

#41

Pro Stock John

LS1Tech Co-Founder

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From: Chicago, IL

If I was going to run 6-8 PSI I would not drop the compression a whole lot. But for 12-20psi I would run 8.xx:1.

May 26, 2006 | 10:59 PM

#42

Zombie

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From: Las Vegas

If I didn't get such a good deal on my diamond pistons ($200) I would have gotten custom ones for a 7.8:1 compression. Lower is definately better

May 27, 2006 | 01:02 AM

#43

mahhddgtp

TECH Enthusiast

Joined: Mar 2004

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From: Loganville, GA

That's why PSJ is the man in my book..

May 27, 2006 | 10:39 AM

#44

turbocuda

Staging Lane

Joined: Jul 2004

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Quote:

Originally Posted by engineermike

The boost comes on around 3000. I have a 2-step set at 2100 rpm. Any higher and it pushes through the brakes. At 2100 it's only building about 2 psi boost.

I tried foot braking, but again, I can only get a little over 2000 and no boost without pushing through the brakes.

Mike

definetly need to look into a different converter....Chat with PTC...they know what they are doing

408ci sbm with twin 84ar h-trims....no transbrake...2 step to 3000 build about 5 psi onthe line 1.48 60's with 3.23's and 28x9 slick at 3500lbs.... 6.64@106 mph in the 1/8th at only 9 psi.

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