'95 F-150 track ready street beast

[Sbeck09]

Dewitts takes one and modifies it to fit their shroud to replaced the C7 fan with so theres that. The C7 has some cooling issues, but its not because of the fan or radiator. It doesn't have very good air flow from the front and add in the condenser and heat exchanger and you get a C7 Z06 that over heats on track days. The draw back you have with that fan in your car now is it does't cover the whole surface which makes some hot spots in the core. You could build a bigger shroud for your C7 fan to save money. They do sell the rubber flaps to add to it so the air blows through when driving and the fan off. Seeing as you're only at 65% pwm you should be ok, the hood vents are really helping out there too. Start stop traffic with the A/C on would be something to double check as well, I've seen lots of cars that are fine with normal driving and some aggressive driving get hot in traffic.

That Detwitts fan is insane in a good way, but at about $1000 it is far more expensive. I know the C7 cooling issues are most commonly from hard driving and I feel like the Z06 heat exchanger is a big part of it. The NA cars run all the same equipment without the cooling problems. This one of the 3 main reasons you won't see me running any boost.

I also agree about the potential for hot spots in the radiator. That was my primary concern about sticking to this C7 fan. Luckily my CTS is in the intake base so the reading is the engine water temperature, not the radiator. Even though I likely have hotter spots in the radiator, the overall result is exactly what I wanted - a lower average engine temp.



For any of you reading this and thinking about the same thing or dealing with similar issues, yes, I agree that the bigger radiator cores most of us have would be perfect for the CTS-V fan. If I was starting this project over that is what I would buy. Then call Andrew and hire him to program it along with doing your Holley EFI tuning!