Hey,

When I rebuilt my engine about 2 years ago I used corvette aluminum heads. In order to keep EGR, I used the exhaust crossover tube, like in the corvette. However I am now realizing that the wiring harness is starting to melt because it rests on this tube, there is no way around it.

I'm thinking I have two options. Either buy new heads that have an internal heat crossover, or delete EGR. Deleting the egr is much cheaper so I'm leaning towards that, but will I pass emissions?

 

its unlikely you would pass emissions without the EGR.
seems everywhere the standards are getting tighter as time goes by.

there is a third option, lengthen your wiring harness.
its really not that hard to do & if done right will last with no problems.

 

Good idea, but what if I wrap the tube and harness with heat tape?

 

Summit and Jegs sell all kinds of heat barriers that would solve your problems

 

Ehh You'll pass fine with no EGR. I ran the 219 cam TF heads and M which has no provisions and it passed perfect with just a cat. I vote to remove it.

 

heat wrap would be a good ideal, but even with the heat wrap, you don't want the harness laying on the tube. put the heat wrap on & either tie wrap the harness up, or make it longer. the farther away from the tube the better.


i don't know what the emissions testing is like where he is at, but he wouldn't pass without it here in Texas, it being on there falls under the visual part of the test no matter what comes out the tail pipe.

a properly working EGR valve has no effect on preformance, you won't even know its there. a properly working EGR valve can let you run cheaper gas, get better fuel mileage, & help to make the air cleaner.


everyone needs to face it,... sooner or later your car will probably be tested for emissions, both tail pipe & visual.
emissions testing will become nation wide, that is the target.
if you don't like emissions testing, be glad Al Gore didn't win, because if he had, nation wide emissions testing would probably be a fact of life now.