Accessory fan coolant switch

FORSFED · 04-17-2005

220 isn't too hot, many gm cars I know of run 210 - 220 from the factory as well as my girlfriends blazer that stays at 220 all day long. My car normally runs 185 - 190 while constantly moving but rises quickly when stopping and going frequently. I had two slim fans hooked up to a toggle inside the car, but I don't like this because on two occassions I've caught myself turning the fans on late when the car is creeping up to 225 - 230. I'll leave my smaller one toggled, but by hooking the large fan to the factory sensor would eliminate having to worry about switching fans on all the time when the car gets warm. Anyway, does anyone care to elaborate on my original question...

brently · 04-17-2005

Quote:

Originally Posted by FORSFED

220 isn't too hot, many gm cars I know of run 210 - 220 from the factory as well as my girlfriends blazer that stays at 220 all day long.

on cast iron heads

220* on a aluminum head is just asking for a warping. NOT saying it will, but its not good. Ive gone up to 240 before and I thought it was all over for my poor ported head, thank god it wasnt.