I have taken off my UIM, and the TB so I can 1 change to a fast IAT sensor, and secondly I wanted to attempt to modify my throttle body like BDC. Note to anyone who wants to modify the TB. Just pay Brian the $150. He likely will do a way better job, and it will save you tons of time!

Anyway, while I had it off I noticed that the UIM, and TB do not line up perfectly. If I gasket match the front two runners would it help to lean out the front rotor? My goal would be to try and balance the front and the rear, when it gets tuned.

I know people mention the issue is caused by the LIM, but I thought this might help out a BIT.

Would this work, or would this be more detrimental?

 

Thanks, Double J.

I think the issue is caused by the LIM. I know of no way to solve it other than changing the LIM itself. This kind of stuff gets tricky. It's also the reason I've adopted as to why I use and promote doing twin EGT's. Even though there's the effect of reversion where the charge is mixed in the surge plenum on the UIM, it doesn't mean the mass of that charge going right back down a lower intake runner is the same as the one adjacent to it. I think it's part of the overall reason that explains why one rotor tends to run hotter than the other. Mismatched intake porting can (sort of) do the same thing, I think.

B