Going to install my LSX intake, just one question?
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Joined: Mar 2003
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From: W.P.B
Going to install my LSX intake, just one question? I see that the intake doesn't include, and or come with the foam padding for the under-side of the intake, that I think goes over the Knock Sensors. The Stocker had it, my LS6 intake had it, and this one doesn't, Is it just not needed, or should I go and buy a set?
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Thread Starter
TECH Regular
Joined: Mar 2003
Posts: 449
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From: W.P.B
Originally Posted by Zero2Sixty
He's referring to valvetrain noise - I plan on installing mine without the foam as well.
The intake is a "hollow shell" It's more than likely echo'ing any noises from the valvetrain.
Foam has little to do with the knock sensors, except keep the wires cleaner.
Foam has little to do with the knock sensors, except keep the wires cleaner.
Exactly the foam just keeps crap from getting under there.
Have you ever seen how much of a noise/knock it takes to signal a knock sensor?
I have tested them on LS1's & other motors, & the amount of force required to trigger a notable event in the PCM eyes is significant.
Alot more than a chincy piece of foam can dampen.
Have you ever seen how much of a noise/knock it takes to signal a knock sensor?
I have tested them on LS1's & other motors, & the amount of force required to trigger a notable event in the PCM eyes is significant.
Alot more than a chincy piece of foam can dampen.
wow, i just found this and I see it's pretty old but I am having alot of noise from my intake. I didn't hear it with my stock intake but when i put my ls6 on without the foam it makes a buttload of noise. Could this be the reason?
Goddamn almost 3 years old, where the hell did you find this at mvvette97?
This is funny that some peple think lack of foam on the bottom of the intake is the cause for noise.
Its not the foam its the fact that the FAST is a very hollow design and you can hear the valvetrain right through the intake.
This is funny that some peple think lack of foam on the bottom of the intake is the cause for noise.
Its not the foam its the fact that the FAST is a very hollow design and you can hear the valvetrain right through the intake.
Originally Posted by brad8266
Goddamn almost 3 years old, where the hell did you find this at mvvette97?
This is funny that some peple think lack of foam on the bottom of the intake is the cause for noise. Its not the foam its the fact that the FAST is a very hollow design and you can hear the valvetrain right through the intake.
This is funny that some peple think lack of foam on the bottom of the intake is the cause for noise.
Its not the foam its the fact that the FAST is a very hollow design and you can hear the valvetrain right through the intake. 
