I have a 160 therm, new water pump, air dam is there and all. Why does my car heat on the highway on warm days? What should I set my timing at for a TPI 350 running the 86 305
ADS superchip. Right now my timing is set at 10 degrees with the current setup. is that too much? It is not spark knocking and I am using my old 305 knock sensor wothout any apparent problems.

Any suggestions?

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Jamie James
1986 Iroc-Z 305 TPI
1.90 60 ft 14.15@ 95.75
1.74 60 ft 12.84@107.75 on the bottle.
My IROC:
http://personal.nbnet.nb.ca/jjames/homepage.htm

 

What temp are you running? Have you verified the guage reading vs. Auto X-ray reading? Guage could be off.

 

I think I figured it out.......I am running the ram air with 8 inch dryer vents from the fog lights in front of the rad and into the air intake. I am assuming that this is blocking 90% of the air that usually goes through the fog lights. Does that sound resonable??? As it heats on the highway but not town or city driving.

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Jamie James
1986 Iroc-Z 305 TPI
1.90 60 ft 14.15@ 95.75
1.74 60 ft 12.84@107.75 on the bottle.
My IROC:
http://personal.nbnet.nb.ca/jjames/homepage.htm

 

I think its possible but I dont think that's the only issue. Look at trans/ams, they don't have any grill vents. Its' all from the bottom. Take one out and see if it makes any diff.