how much boost does your stock lightning see ??
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When mine was stock it saw 8 psi no matter what the temps were.
When I changed to an open cone filter and CAI I saw 9 psi, maybe 10 a few times if it was less than 60* temps. For the most part 9 psi.
It wasnt until I changed pullies that I saw any more than that. Thats when it all started....12 psi, 16 psi, then came the port
When I changed to an open cone filter and CAI I saw 9 psi, maybe 10 a few times if it was less than 60* temps. For the most part 9 psi.
It wasnt until I changed pullies that I saw any more than that. Thats when it all started....12 psi, 16 psi, then came the port
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[QUTOE] IMO the best $$$ to spend for a quick "boost" was the port job . With a 4# my 03 was getting 15 - 16 , but the best part was how fast it would spin up and get 15 - 16 ~!~
SC [QUOTE]
15-16 lbs with a 4lb lower? something must have been restricting the exhaust.
But then again all trucks are different.
I was seeing 12-14 with the 4lber and a stock eaton, once I ported it I lost a little boost- untill I added the 6lb lowe, then I more than made up for any losses.
SC [QUOTE]
15-16 lbs with a 4lb lower? something must have been restricting the exhaust.
But then again all trucks are different.
I was seeing 12-14 with the 4lber and a stock eaton, once I ported it I lost a little boost- untill I added the 6lb lowe, then I more than made up for any losses.
Last edited by LTNDave; 03-27-2007 at 10:20 AM.