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#1
06-08-2012, 03:05 AM
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Re: 69 z28 302 running hot on hwy
its maybe 70-80 degrees outside, the engine was still very warm from the trip, i backed it out in the driveway, let it idle till it got just shy of 200 degrees, shut it off and i can move the fan pretty easily, it was pulling some air through pretty good when it was idling, bad fan??
Thanks!! Matt
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1967 Z28 survivor Black original drivetrain 1968 Z28 survivor white 40k miles 1969 Z28 survivor Rally Green 60k miles 1969 Z28 survivor Rally Green 20k miles 1969 Yenko Camaro Lemans Blue -muscatell sold new, second to last yenko made 1969 Berger copo original paint 240 miles Lots of 67-72 Chevrolet trucks 
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#2
06-08-2012, 05:04 AM
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Re: 69 z28 302 running hot on hwy
mine moves fairly easy also. maybe try a flex fan if you have one. Off the road cam may make it run a little hotter also. 4.10 gears? Any lead in your gas? Radiator flowing correctly?
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#3
06-09-2012, 01:31 AM
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Re: 69 z28 302 running hot on hwy
I was running a clutch fan when I fired my 302 up and it hit 260 in 10 minutes. Had to shut off {During break in of motor} and installed a flex fan and right down to 180 deg. Ran there for 10 years with 180 stat. I ran 4:11 and after 3,800 rpm the car would run at 200 deg doing 70 mph. Drop down to 3,300 to 3,500 and back at 180. Never mattered the outside temp...it still ran 180. Drove to Super Chevy last year when it was 90 and humid out and ran 180. My temp sender is in my passenger head so it might be cooler yet?
I run a wild cam {560/560 294 Soild} and runs cool. Try a flex fan as Sam says!! He knows this stuff!!! Dave 67 Nova Boy
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