Next step was to clean up the edges in the upper intake manifold.

There was a nasty plastic ridge on the plastic runners, probably left over from forming. I simply ground it off.

You can't tell from the picture, but you can feel it if you run your finger around the intake runner.



Also, I was checking how the throttle body was matching up to the intake, and I noticed that the intake was not match perfectly on the top of the inlet from the throttle body. I ground that off so they would match. (port matching basically)

 

While I had the intake off, it was a perfect time to do the coolant bypass.

Coolant lines run thru the throttle body to prevent the butterfly valve from freezing. This is really only needed in extremely cold weather, so I alway bypass it on my cars. It never gets cold enough here to cause that.

To do this, I purchased a 2 Ft piece of 5/16" heater hose. Ther reason I bought such a long piece is the the hose will need to curve without kinking itself, or the car will likely overheat.

There is a line that goes into the trhottle body, that comes from the water inlet/outlet directly below. Connect one end of the 3 ft hose here. Be sure to have a clamp on the line, and ready to go. I reused the OE ones. (coolant will come out, so be quick.)



Ther other end needs to connect to the water inlet/outlet that is on the front of the engine, right below the lower intake manifold. Again, have a clamp on and ready to go. (coolant will come out, so be quick.)



Heres a picture of the full loop.



I also made sure cap off the nipples on the throttle body, to prevent debris from collecting in them.

 

These are all simple mods that only take a few minutes, and cost me about $1.50 for the hose. If you think its a waste of time, don't bother with it.

Also, I would not recommend smoothing the throttle body to anyone that hasn't used a dremmel before. It is possible to mess it up.

Don't expect any serious gains out of these. they are just some simple DIY's.

 

I give you a thumbs up man.. great job, now to start modding

 

Working on installing my AEM FIC now. Got the harness done so far.

I didn't want to mount it under the hood. So I decided to extend it, and mount it under the dash.

Heres the harness.

 

Nice mods.

I went to High School in Brunswick 1986-1990.

BHS