Overheating Issue.
Building '67 Cobra Rpl - engine in frame - using large garage fan for cooling.
'69 Ford 429 Stroked to 460, Comp Cam, Rods, Pistons, Holley 750cfm, Edelbrock Torker II Intake, roller rockers, High flow/High Pressure Fuel Pump, High flow/High Pressure
Oil Pump, High flow/High Pressure Water pump. Around 11:1 Comp est.
Initial timing @ 12 D BTDC;
Running w/o thermostat (Tried 180 and 160 - overheats)
Radiator Cap inline with output.
PART 1:
With Temp = 72 degrees....ran for 100 Minutes (stationary) with the following results.....
Fan on High – 45 minutes
= temp at 195 degrees
Oil @ 50# psi
Fan on Medium – 60 minutes (Total)
= 212 degrees
Oil @ 42# (Oil filter = 218)
Fan on LOW – 70 minutes (Total)
= 230 degrees Oil @ 39# (Oil filter = 234)
started pushing water out –all most filled overflow quart bottle.
Fan back on High at 70 – 100 minutes
= temp down to 210 degrees Oil @ 39#
With the thermostat installed it'll go up to 230 degrees and keep climbing.
So, I read many posts and nothing seems to jump out....other than someone pointed out that if the head gaskets are installed backwards it may cause overheating because the gasket should have larger holes to the rear. I have included pics of my gasket and block. It does seem as though the gasket may be backwards per location of degrading holes. However, looking at the pictures, Its hard for me to believe that would make a difference...
Might get a water pressure gauge to monitor it....and try the timing at 16 D BTDC.....
Thoughts? Opinions? Experience?
PART 2:
When first starts, it pushes about 1/2 qt within first couple of minutes.. Because cap is low and high flow Water pump? So with the water pushing out I was thinking of putting the radiator cap on the “low pressure” side of the radiator, there is a petcock on the top that I can hook into and set up a pressure can and overflow...would this work?
Any comments would be appreciated.......SpeedwayPJ
Here is video:
https://www.youtube.com/watch?v=JTcaeBe7fAg
