does this sound right?
Thread Starter
Pro
Joined: Oct 2003
Posts: 639
Likes: 0
From: springfield missouri
does this sound right?
475 rwhp
80 degrees outside
44% humidity
stock other than borla catback and procharger with 4.25 pulley
some belt slippage
91 octane
trying a gatorback and some 93 minus cats next week. Where should I be?
is this right?
thanks
80 degrees outside
44% humidity
stock other than borla catback and procharger with 4.25 pulley
some belt slippage
91 octane
trying a gatorback and some 93 minus cats next week. Where should I be?
is this right?
thanks
Thread Starter
Pro
Joined: Oct 2003
Posts: 639
Likes: 0
From: springfield missouri
didnt have it printed since I'm going back next week. A/F is perfect. torque was slightly lower than hp. timing had to be set way back to avoid a knock at about 3000 that went away as the rpms climbed. It was done on a dynojet with hp software.
Drifting
Joined: Nov 2002
Posts: 1,651
Likes: 125
From: laguna niguel ca
Yes it does
Stock motor, stock exhaust manifolds, It's about right. what's your boost at WOT. If it's 6-8lbs, you're there. Belt slipage maybe a little more. SC with a stock motor and headers makes about 500-510 rwhp.If you baseline was between 335-345rwhp, then your HP is at 135rwhp increase and that's what they advertise.
Thread Starter
Pro
Joined: Oct 2003
Posts: 639
Likes: 0
From: springfield missouri
got rid of cats today. fixed the belt slip with a proper belt. removing cats will reduce boost? going to retune with 4.25 again with better gas and no belt slip. guess I should wait till next week to think about another pulley change. any thoughts?
Drifting
Joined: Nov 2002
Posts: 1,651
Likes: 125
From: laguna niguel ca
More boost is not the answer.
You keep adding boost to your stock motor, ie cast pistions and your motor is on a short life expectency. Remember with a stock LS2 manifold when your motor goes to boost the # 7 combustion chamber goes lean. Reason, all the air goes to the back of the manifold, and #7 is the last in line and gets all the air first as it backs up towards the front. Blowers and cast pistons aren't real friendly. Add a set of headers and your power will go up, as long as your A/F mixture is right.
This way your motor should live longer.
This way your motor should live longer.
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