Turbo heat shields; keep or remove?

Supra5MGTE

New Member
Nov 11, 2005
421
0
0
Tampa, FL
Do they do anything? on our stock 90T I took them off b/c they were in my way of doing other work and never put them back on. Should I toss them in the rubbish or what?
 

PorterzSupra

New Member
Oct 25, 2005
703
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Hebron CT
I run mine off, it showcases the turbo alot more. Never had any problems but overall im sure its a little better to keep it on but u cant tell me that =)
 

Stretch

Tallest MK3 driver ever!!
Mar 30, 2005
1,275
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Toronto, Ontario
I know how much you probably like showcasing your stock ct26 with stock manifold, but these guys aren't talking to waste time, the heat shields to just that, shield the immense heat from everything on that side and under the hood. Aswel las the hood itself. The turbo gets very hot, and so will everything else under there if they're off. Why not wrap them with turbowrap or something if you really don't want the covers.
eric
 

Supra5MGTE

New Member
Nov 11, 2005
421
0
0
Tampa, FL
ok, i'll put it back on. she's been driving around w/out them for about 1-2 weeks no problems. but she drives it soooo slllooooowwww.. She never gets the boost gauge to 0 even. she's always in vacuum. she got 23 mpg on her last tank and that was with a dragging RF caliper. Now we got new front brakes and an Electric fan. curious to see what her mpg will be now.
 

Silent Smith

Jerk.
Nov 30, 2005
59
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Mississauga
With the positioning of the stock ic piping if you remove the main heat shield your essentially cooking the rubber. If may be fine for a little while but A) your heating the ic piping/rubber and the air inside of it and B) you could end up ( in theory) blistering paint on the strut tower/hood and cooking the valve cover gaskets.


I recently took my heat shield off and used a spray on ceramic based paint (dupli color). It was more for appearance but the dipstick is touchable after harding running now. Could be caused the weather cooling down too, but regardless it looks way better.
 

Dirgle

Conjurer of Boost
Mar 30, 2005
1,632
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Pauma Valley, CA
Don't forget all the electrical wiring under there that can get exposed to the heat. This causes it to get brittle and crack leading to shorts and electrical gremlins down the road.

Removing the heat shields may have no effect on the immediate but the name of this game is prevention. Save yourself headaches down the road and put the heat shields back.
 

IJ.

Grumpy Old Man
Mar 30, 2005
38,728
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I come from a land down under
I had my Header Turbine Housing and Dump pipe Ceramic coated as well as running the Blankie!

2 benefits are it keeps the heat in where it does some good and it keeps the heat in away from everything else in the engine bay that doesn't need to be heated!
 
N

NDBoost

Guest
dont have mine in partially because the bolts were lost some time ago, i must agree it gets bitchin hot in there and it cant be good for the other internals.

But so far all my other "peripherals" are playing nicely together, and i havent noticed any paint bubbling (yet).
 

miggles

i wasnt speeding officer
Jun 3, 2005
526
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perth West Australia
ive had my heatshield off for around 3yrs.The only paint that is blistering is on the outside of my hood,roof due to the fact that i work at a gold refinery and the amount of acids n caustic spewing out the scrubber towers fallout and land on the cars and eat the clearcoat.Ive put it back now (6months) and have put a new one that covers the dump pipe better in my to do list.
 

Johnny Dangerously

I can eat planets
Apr 4, 2005
278
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Corpus Christi, TX..
on my 3 supras, ive never had the heat shields on...i understand its purpose...however, i just dont put them on...call it laziness, i dont know. I dont have any problems with wiring, with "cooking the rubber" with everything other reason you can throw at me.

sure, u can put it on, keep a good state of mind...but ive never had problems *shrugs*