Considering upgrading to the Performance Pack Radiator

[CTH621]

I'd just go to the Mishimoto if you don't have the PP radiator. I don't have coolant heat issues on a road course and I have the PP radiator. My oil temp rises from normal but it typically tops off. I have an oil cooler setup I plan to install but haven't gotten around to it... lot of work.

Curious what are your peak oil temp and cylinder head temps while hotlapping on the road course? My CHT is 260! Non PP radiator. No grille modifications. Stock thermostat. Not sure what my oil temps are.

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[EFI]

I've never seen CHT temps over 228* with the PP radiator and no other cooling mods. This was on a 67-70* day and would usually run for about 20-25 minutes. Oil temps like you I have no idea really, but the gauge was still about 3/4s of the way in the green not quite to yellow.

260CHT is alot, and by then the computer is kicking in bigtime to reduce power and heat, so you don't want to be over 245-250.

 

[sloppymax]

To the OP, would the non PP radiator not contain your auto transmission cooler as well? I know you could go to an external unit but something to keep in mind.

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