Louder Valve Noise With New Headers
Originally Posted by gnbooster87
if you dont have positive advise then fuckoff, its dipshits like you that ruin the whole purpose of this site 
Originally Posted by gnbooster87
if you dont have positive advise then fuckoff, its dipshits like you that ruin the whole purpose of this site
Joined: Nov 2001
Posts: 34,643
Likes: 2,571
From: Schiller Park, ILL Member: #317
Redneck Z is right, if you post about an issue you're having and you want honest advice on possible causes and solutions, sometimes you have to be willing to get answers that don't make you happy. What good would it do if people just told you what you want to hear even if it's not correct or is misleading?
gnbooster87...no one is trying to offend you. It's just a matter of fact that it's self-defeating to try and make more power buy adding expensive performance upgrades only to try and save by running low octane fuel. Your LS1 will perform at it's best on premium, and if peak performance isn't as important to you as saving a few bucks, well then that's your right obviously. But it's just confusing to us why you'd spend the cash for headers but not the few extra dollars for better gas?
Again, your issue may not even be knock, but if it is, that's an issue you need to fix, and the easist way to try and clear it up would be to increase octane......just stating the facts....
Of course, if it is knock, it can be caused by MANY things. You could try running colder plugs, reduce timing via tuning, do a top engine clean (seafoam), get new/bigger injectors, replace/upgrade the fuel pump, replace any one of a number of sensors that may be aging, etc., etc...... but that all costs money, and it's hard to pinpoint where to start unless you're getting a SES light to check or have a scanner to watch a host of different parameters (fuel trims, timing, O2s, etc.). The small amount of extra cash for a few tanks of premium would be much cheaper and might be all it takes.
gnbooster87...no one is trying to offend you. It's just a matter of fact that it's self-defeating to try and make more power buy adding expensive performance upgrades only to try and save by running low octane fuel. Your LS1 will perform at it's best on premium, and if peak performance isn't as important to you as saving a few bucks, well then that's your right obviously. But it's just confusing to us why you'd spend the cash for headers but not the few extra dollars for better gas?
Again, your issue may not even be knock, but if it is, that's an issue you need to fix, and the easist way to try and clear it up would be to increase octane......just stating the facts....
Of course, if it is knock, it can be caused by MANY things. You could try running colder plugs, reduce timing via tuning, do a top engine clean (seafoam), get new/bigger injectors, replace/upgrade the fuel pump, replace any one of a number of sensors that may be aging, etc., etc...... but that all costs money, and it's hard to pinpoint where to start unless you're getting a SES light to check or have a scanner to watch a host of different parameters (fuel trims, timing, O2s, etc.). The small amount of extra cash for a few tanks of premium would be much cheaper and might be all it takes.
Last edited by RPM WS6; Feb 4, 2006 at 07:05 PM.
thanks for the advise, i wasnt expecting such raw advise like "if you dont use good gas u shoudnt own a ls1", i know im soppose to use 91 or higher witch i 98% of the time i do, ill fill it up this week with 91oct and see what happens
GNbooster...would you run 87 in your GN? Of course not.
This is no different. Let's be realistic here though, how much $$ are you REALLY saving? $3/tank. That's pennies compared to having some serious motor problems if you are in fact detonating that bad you can hear it.
This is no different. Let's be realistic here though, how much $$ are you REALLY saving? $3/tank. That's pennies compared to having some serious motor problems if you are in fact detonating that bad you can hear it.
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From: NC, Charlotte / SC, RockHill
Originally Posted by gnbooster87
times are tough, with rent and a new car payment thats all shell have to get for now.......
Other than that, when I installed my headers I noticed an EXH leak like noise. I asked around and was told that it was a normal header noise. You'll know when thee's a leak. It'll run like crap and be loud as hell.
Something to remember......A constant hissing type noise is a leaky collector. A seperate, ticking, pulsing noise is most likely a loose header bolt or a bad gasket.
87 octane is designed for cars w/ a lower compression ratio. You run the risk of detontion using lower grade gas. (Total out the cost of the headers alright) The 93 octane is designed to light at a higher temprature... (or is it the other way around?? I might have effed that up...)
Last edited by bayer-z28; Feb 5, 2006 at 08:45 AM.
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Originally Posted by bayer-z28
I don't want to hear it. I have $1170/mo in insurance, rent and car payments. I STILL fill her up w/ the good stuff... EVERY TIME!
Also, thank you for serving
Launching!
Joined: Sep 2004
Posts: 249
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Its gotta be the 87 octane gas causing the problem, however with headers there is a lot more valvetrain noise. Dont take this the wrong way but how can you not afford to put in 91 octane? 91 is prbably 30 cents more per gallon than 87. Lets say everytime you fill up you put 15 gallons in, using 91 octane will only cost you $4.50 more than using 87. Hmm.. pay a extra $4.50 or risk melting a piston.... which is cheaper??
