I was perusing the local pawn shop for a camera and found a Sears Dremel kit instead. Got it for $59 including tax with about 40 bits in the kit.

After tearing down the TPI (replacing gaskets and testing injectors) I put the grinder to the two humps blocking air flow in the plenum right behind the TB. It took about 20 minutes and covered head to toe with aluminum shavings -- the obstruction was cleared.

Now that I have the TPI apart I am think of going dremel happy -- is there anything else to port/grind in the tpi ? The runner gaskets seem to match up pretty well. Has anyone else done this work before ? Got any suggestions ?

Thx in advance,
RP.

 

Yup...there's a little more that you can do. The hunk of metal inside the plenum that separates the runner tubes (I hope you know what I mean here....I'm not sure how else to describe it) is kinda squared off. You can shave some of that down so that the air exiting the plenum can enter the runners a little more smoothly. After that are done the should kinda look like the airfoil for the TB. I didn't do anything to the runners themselves, I decided to leave those pieces alone. And for gasket matching, I agree, they seemed to be matched pretty good already.