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Old 09-03-2012, 03:52 PM
  #22  
chevyart
Senior Member
MASTER BUILDER
 
Join Date: Mar 2008
Posts: 173
Default overheating

hey waz ran car with new 16 lb pressure cap and new , bigger jets, and i did not put the 1inch restrictor in as i want to do one thing at a time(like tuning, one at a time). car ran cooler up to takeoff and then at full throttle it went up to 240 and at end of track it came back down to 220 or so and i sat there and cooled it to 180 and drove back to the pits. by time i got back to my spot, it was up to 240(or more). im gonna put in new electridc fan that covers my whole radiator with lots of cfms. the fan in there now is about 3 inches short on each side of the radiator, so i know that fan is inadequate in both cfms and shroud size. still unsure of which way to go with the restrictor. 5/8s or the 1 incher. what is your suggestion. also the oil pressure at end of run, when car is real hot, drops to around 20 lbs until the car cools off and then shoots back up. doers that sound like a problem? i use valvoline 20-50 racing oil. what do you think of that. thanks for help. art
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