I just did the turbo conversion in my 88 n/a and i noticed im getting a lot of heat inside the car.I dont have any carpet in the car,and the car is only running 200 degrees tops.And when the car har been running a while the tranny tunnel inside the car is too hot to touch.All the heat sheilding is up underneath the car. What can cause this kind of heat to be coming into the passenger compartment??????

 

No carpet.

 

no carpet and what kind of oil are u running inside the tranny?

 

My turbo conversion resulted in the tranny tunnel getting very hot. It was caused by the engine running to rich after intall and I basically burnt out my cat. Once the Cat gutted, the tunnel went back to normal temps, the car was a bit quicker and a lot louder

oops mines a Right hand drive, so assuming your cat's in the same place this would be the most likely cause. I think

 

Im running 85w-90 in the tranny, and yes no carpet, i had my car broken into 2 years ago and the ripped the dash apart something feirce, so when i replaced the dash i noticed water and mold under the carpet so i took it out.Im also running a straight through exhaust, no cats, 2.5 dp and apexi N1 duals

 

did you remove the aluminum heat sheilds from the exhaust? My t2 swap in to my vert runs hot inside the cabin to. I think this is because it was running to rich on the stock computer. I have a full ems system now so we will see if that cools it down a little

 

I would emagine it's the no carpet thing along with the added power of a turbo charger that is heating things up. I would either deal with it or put the carpet back on. That carpet is thick with material on the botom to reduce the heat from under the car.

 

Mine doesn't get that hot and i got the carpet in mine.

 

You also might want ot check the condition of your shifter boots if hot air is getting into the passenger compartment. I had the same heat problems with my GTU and checked the boots of the shifter and found the large one completely melted and the smaller ones completely gone. I upgraded to a maxdatrix short shifter and replaced all the boots and solved the heat problem. I agree with the other guys about the insulation, heat shielding, and carpets are needed to insulate the cabin from the heat generated by the engine and exhaust. It will definitely be well worth your time and expense to get the heat out of the cabin.

 

All my heat sheilds are in place and the shifter boots are brand new.I mean the trans tunnel when you touch it literaly burns my hand.Do you think it might be because im runnung to rich on the stock computer??

 

Would exhaust wrap help this situation?

 

thats what i was thinkin... my car is verry hot in the compartment and i am going to try and wrap everything under the sun. even place a few heat sheets on the fire wall to keep that from getting warm. i have carpet still in mine but its still hot in the compartment so i can only dream of what its like for you..

 

I have an 88 vert with the same problem and I compare it with my bone stock 90 gxl and found that stock exhaust is double walled hence less heat round the cab above.

how about some dynamat or heat shield below the carpet?

 

"how about some dynamat or heat shield below the carpet?"

Although this might mask the problem it won't solve it. It's like finding out you have a flat and then duck taping it. And the metal is still going to be getting hot if you just put the shielding on the inside of your car. Deal with it from the outside and the inside won't be a problem. Not to say that having carpet wouldn't help some. Try looking at a t2 to see if you notice any differences in heat dissipation methods in their setup compared with yours. They're the ones who originally made it work, copy them. If that doesn't work, wrap all your exhaust close to the body, and put heat sheets on the fire wall and undercarriage of the body. Then get a better a/c system.

 

Cool thanks for the advice.Ill take a look at my turbo tii parts car and see if there are any diffrences.Thanks for the help guys