Re: Intake manifold heat?
 

It looked and felt like teflon to me. The one the sold me was white not blue.
It doesn't seem to work. I'll know for sure tomorrow.

Re: Intake manifold heat?
 

It does not look like Teflon. Take the temp readings and post them.

Re: Intake manifold heat?
 

After a few of minutes at idle the intake runners were 105 degrees the head next to the intake manifold was 108. As the head got hotter the runners the runners got hotter to.
I didn't have the temp gun before but I think the runners stayed cooler longer, till they eventually heat soaked.

Re: Intake manifold heat?
 

It may be too thin; the spacer looks more for a street/OEM application and it may need to be thicker for your application.
Just make your own heat spacer from a thick sheet of Black Nylon 66.

Re: Intake manifold heat?
 

The spacer is about .300 thick. How thick is the Black Nylon 66?

Re: Intake manifold heat?
 

It's available in many thicknesses.

http://tridentplastics.thomasnet.com...eet?&forward=1

Re: Intake manifold heat?
 

Thinking out loud:

Timing ?

Reversion?

Re: Intake manifold heat?
 

Hey Art, in your class are you allowed coatings ?

Ive got some waterbased ceramic that is a heat dissapation coating, stuff works great. Ive got about a half gallon of the goo left, coating the intake inside and out I can almost guarentee a big heat soak drop......problem is once it does the stuff works the other way around and will hold it in, but it takes a lot longer ? Why kill the water passage ?

Re: Intake manifold heat?
 

GOLD my wife is always cold when i am HOT it must be the gold ring

Re: Intake manifold heat?
 

Pulled the motor to check the bearings. didn't mess with the timing belt at all.
Timing light is in the trailer. I'll go get it on Tuesday and double check it but it starts easy and idles great.
As far as reversion goes. This is a different cam (much bigger) than last year. I haven't paid attention to the manifold heat this year. Each time out I've been heating the engine, to allow heat soaking. I'm finally going to a track without eyes. So I want to know what I can pick up with a cold intake.
Took a leakdown to see if I had some bent intake valves It was 3 to 5 percent (not bad for gasported pistons).
This is the motor that I had asked about the compression pressure before It is 300 pounds. I worried myself sick about it. But have just learned to live with it as a quirk with the 4 valve setup.