I unfortunately hit 265 pretty regularly on warm track days, and that is with the AE Performance 72 row Setrab narrow core (roughly the same area as the 34R series 6). They use -8AN lines so I'm wondering if I'm just not getting enough flow volume?
For the others considering a cooler - what you'll need generally depends on the driver and how hard you push the car. The more time you are on the throttle the more heat that is generated. For most beginners I would say the 24R is fine, but if you have previous track experience go for the 34R.
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