BB Cooling Issue Solved

[viperman]

I recently went thru a bunch of upgrades on my 69 BB camaro and had a cooling problem. I think the multiple issues, but was further complicated when I finished the AC installation. A few months back I switched to a griffin CU-0009 radiator with dual 11" fans. I did not drive the car much so limited data. Flash forward, completed the CAA AC conversion in mid-summer here in PA, and immediately had OH issues. The solve was a couple parts, so I thought I would share.



Immediately after the install, my sniper started complaining and car would not return to idle...also the voltage was dropping at certain times based on the hand held. Again multiple steps to solve, would have been better to do each one individually and see the result, but... I installed a 150 amp alternator to replace my 10SI....Fixed voltage. I installed a 160 HF thermostat and high volume water pump. Previously had been using a 180 and the WP was 25 years old..so no big deal...Then I called griffin and upgraded the fans to their PF-03 which flowed about 1.5x of the ones that came in radiator kit....I have the sniper controlling the fans, and when airs on, fan one is triggered.....when air is off, fan 1 180, fan 2 190....Happy to say in 99 heat with air on full 192 is the max temperature, so no more issues.

I think the fans and the new AC were killing the voltage, which drove the sniper crazy and the original fans probably were doing all they could at less than 12.5V. The under hood temps were also impacting the sniper....With the new altenator- new fans are fine, voltage is fine, and the under hood temps are down so the sniper is happy. The WP probably helped some and probably needed to be replaced anyway, so no big deal.

IT makes sense that the fans and the spal ACC unit pushed the old altenater over the edge.....so the 150 upgrade was necessary... The sniper fuel pump and ecu are also a drain, along with the led headlights and relay conversion i did, so it had been a long time coming.

JR