86 EGR pipe insulation. .....
Racer
Joined: Apr 2010
Posts: 372
Likes: 23
From: Harper Woods MI
I bought the upper and lower heat shield from Corvette Central. Pretty reasonable price and attach with velcro.
http://www.parts123.com/corvettecent...050f&ukey=9050
http://www.parts123.com/corvettecent...050f&ukey=9050
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The best solution seems to be to use header wrap and then put the foil heat shield on top of it for looks.
Team Owner
Joined: Jan 2003
Posts: 20,298
Likes: 240
From: Summerland B.C. Canada
Hi. Just got done doing a Engine refresh on my 86. Polished the plenum and runners, some cool red powder coated pieces for color.
What's sticking out like a sore thumb is the insulation on the EGR pipe. I bought some new stock tin foil type like the original, but a month later it looks like **** Already.
Does anyone here have any creative ideas or solutions? Since I have a red theme going I was going to buy a roll of red exhust header tape. What do you think? Any opinions, ideas would be most appreciated!
What's sticking out like a sore thumb is the insulation on the EGR pipe. I bought some new stock tin foil type like the original, but a month later it looks like **** Already.
Does anyone here have any creative ideas or solutions? Since I have a red theme going I was going to buy a roll of red exhust header tape. What do you think? Any opinions, ideas would be most appreciated!
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Thread Starter
Instructor
Joined: Jan 2015
Posts: 207
Likes: 1
Wow.......that looks awesome! 
Can you believe I'm still waiting for that Red Tape to arrive!!?
Can I ask , What happened when you removed the EGR pipe? I mean its got to be there for a reason. GM engineers aren't that inept are they? To design something not needed?
Can you believe I'm still waiting for that Red Tape to arrive!!?
Can I ask , What happened when you removed the EGR pipe? I mean its got to be there for a reason. GM engineers aren't that inept are they? To design something not needed?
Advanced
Joined: Aug 2013
Posts: 63
Likes: 1
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
Interesting..
Advanced
Joined: Aug 2013
Posts: 63
Likes: 1
I ran mine without insulation until I burned (grounded) the EGR temperature wire and got a code. When repairing it, I noticed that a spark plug wire was scorched also.
I keep it wrapped now. Each car is different.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Originally all '86s were supposed to have aluminum heads, so that is why the EGR tube is present on all '86 cars.
Safety Car
Joined: Aug 2013
Posts: 4,427
Likes: 603
From: Minneapolis Mn
Could be wrong but don't think so.
Thread Starter
Instructor
Joined: Jan 2015
Posts: 207
Likes: 1
Far as I know the aluminum heads started off on the convertibles in 86, early coupes (86's) definitely had cast iron heads from what I've seen. Don't know if all were switched to aluminum by the end of that years run or not. AFAIK starting with 87's they all had aluminum heads.
Could be wrong but don't think so.
Could be wrong but don't think so.
The Wrap finally arrived. took 2 weeks........
I'm going to try the opposite first. I'm going to put on my lame tin foil wrap then put the red header tape over it and see how it looks. Nothing ventured , nothing gained..........
Thread Starter
Instructor
Joined: Jan 2015
Posts: 207
Likes: 1
I would think introducing the hotter exhaust was a No No for performance ......I wonder Why is it necessary for the aluminum over the Iron?
Thread Starter
Instructor
Joined: Jan 2015
Posts: 207
Likes: 1
It looks a little bunched because I installed it over the old shield. I could have gotten a tighter wrap without it, but the purpose is to insulate so I took function over looks. I painted it with some 900* brake caliber paint straight to the pipe and in 1 long drive it was burnt right off. So I'm not taking chances, that's one hot little pipe!! I hope the color lasts on the header tape.