Upgraded cooling fans
 

I'm looking to track at least 6 timed next year, what's the best upgraded fans for the twins?

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Why? Is it overheating now?

Factory fans pull more air than almost all aftermarket fans that fit. The biggest spal fans pull more air but require a customish shroud to be affective. FullBlown makes a kit. Buts if you're having problems fans are the last step. Oil cooler first. Then radiator. Then find a way to get the heat out of the engine bay. Then fans/shroud.

^^^this^^^ Oil cooler first and foremost.

I have the Vortech 9 psi vishnu tune, perrin oil cooler, vented hood, but stock radiator and fans, I run in hot California tracks in the desert, can be 100 degree plus ambient...

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Also , not the Vortech oil fed version 2

The fullblown radiator shroud and spal fans kit is pretty nice.

Save yourself the headache and just upgrade that tiny dinky Perrin oil cooler. Even people who are NA and track are realizing that 13 row is too small for the hotter months on the track here in CA.

Get a 15 row or 20 row setrab. You can buy just the core online and swap out your 13 row. Or you can but the Jackson Racing kit.

We have tested time and again on a turbocharged engine and found that an aftermarket radiator like the koyo does not help the engine stay cooler vs the stock radiator. The radiator is not the weak link.

Get those oil temps down and heat won't be an issue.