TECH: Your Intake Manifold

[albertomg]

Originally Posted by Cp1

....this is important to know because if you weld them (like i will show you) you DO NOT WANT TO WELD EVERYTHING because you will create pockets of permanently trapped air. which heats up and may cause localized heating to your nice cool intake air or it may expand and crack the intake. the possibility of that is small but why not take some precautions.

No offense, but that I think that is just about impossible. How did you come upon that hypothesis?

I also don't understand the fascination with removing all emissions 'crap'. My car works just fine with all emissions 'crap' installed and puts down nice power - 350 rwhp using seq twins.

[RXtacy]

Originally Posted by albertomg

I also don't understand the fascination with removing all emissions 'crap'. My car works just fine with all emissions 'crap' installed and puts down nice power - 350 rwhp using seq twins.

It removes a lot of clutter from under the UIM along with getting rid of the air pump making IC piping much easier, and overall just simplifies the vacuum system making tracing promblems easier.

[Cp1]

Originally Posted by albertomg

No offense, but that I think that is just about impossible. How did you come upon that hypothesis?

I also don't understand the fascination with removing all emissions 'crap'. My car works just fine with all emissions 'crap' installed and puts down nice power - 350 rwhp using seq twins.

1st point: I completely agree it is next to impossible to heat the air to such an extent that it would cause significant enough pressure to cause cracks, considering the already intense heat of tig welding, your exhaust wont be able to match that. But i dont want anyone blaming me for whatever reason.

however, if you block off the only escape route for heated exhaust air which is actually cast into the LIM right next to the rear intake runner you are actually heating that runner more than the other three. that said, that is localized heating and you probably want that hot air to be able to escape. not just continue to heat up.

2nd point: Someone already said it yes the main benefit is the simplicity of not having it. if your car works fine it would be silly to remove it just for that reason.