LT headers
LT headers I have heard many different numbers about the hp I can pick up with LT's. I ordered the pacesetter race headers. Should be here in a few days. Also I heard the LT4 knock module was necessary after the installation of LT's? Is this true?
Is this something you have actual experience with or are you repeating something you heard on the internet?
The only real way to know is hook up a scanner and see if YOUR car is pulling knock, with headers, and then figure out if they are the cause.
Launching!
Joined: Feb 2009
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From: bodymore
It's been said that headers can cause a stock LT1 knock module to sense knock.
Is this something you have actual experience with or are you repeating something you heard on the internet?
The only real way to know is hook up a scanner and see if YOUR car is pulling knock, with headers, and then figure out if they are the cause.
Is this something you have actual experience with or are you repeating something you heard on the internet?
The only real way to know is hook up a scanner and see if YOUR car is pulling knock, with headers, and then figure out if they are the cause.
the guy asked generally, and generally its not needed unless his car is a freak or something. i dont see how exhaust pulses are gonna be picked up as knock..sure its gonna be noisier but by the time it is noisier / gets out its gonna be farther away from the block.
its been said? by who? someone on the internet?
i think theres an equal amount if not more people that dont get it with their headers than do. it wouldnt hurt to make it less suspectible but you cant tell until you look at how much timing is being pulled to find any benefits. if youre gonna do valvetrain soon might as well get it ahead of time one less thing to worry about
Last edited by trippinholyman; Apr 5, 2009 at 08:42 AM.
okay that is what i was wanting to know. yes I will be doing a h/c swap down the road and I was planning on installing the knock module then. What type of scanner? They don't make any hypertech or diablo sports? I don't really want to pay anyone to scan it...thats money taken away from the mod fund. I have the obd1 pcm with the obd2 connector.
there like 20 bucks on ebay and take like 5 mins to swap. just get one youll need it later, i put one in long before i did any valvetrain swaps just incase. and now i have 1.6 rrs and dont have to worry bout it.
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Joined: Feb 2009
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I think that the part is not expensive infact you could probably go to the auto parts store and they should have one. I asked around and I think changing the knock module on only a header swap isn't necessary on a LT1 but is on the pre-2000 LS1's. The knock module is only like 20 bucks but the scanner is around $60
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