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Author Topic:   Radiator Size
nw15
Member
posted February 25, 2004 04:37 PM
What size radiator would you run on a chevy 350 making 450 HP. Short track application


jammin
Administrator
posted February 25, 2004 04:40 PM
fuel?


outlawstock17
Member
posted February 25, 2004 05:22 PM
i always run the biggest radiator that i can fit in the chassis.


nw15x
Member
posted February 25, 2004 05:40 PM
Fuel is GAS....why go why the biggest. I could fit a 40x20 if i really wanted to install the biggest. I'm looking for the right size for that application.


outlawstock17
Member
posted February 25, 2004 06:23 PM
i didn't mean run a radiator out of a flippin' peterbilt! if you can fit a 19x31 in it, use it.

if you have a radiator that is "over qualified" for the job, you can run underdrive pulleys and make more power. also, on the really hot days or when you possibly get a small pin hole from something on the track, a larger radiator may be just enough to allow you to finish the race without melting down the engine. it's your engine.....run one that will barely get the job done and if you have a problem with mud build up or some contact that restricts airflow, you will be kicking yourself because I TOLD YOU SO!

[This message has been edited by outlawstock17 (edited February 25, 2004).]

dirtracer7
Member
posted March 02, 2004 09:48 PM
I hear ya outlaw


UFnARacing
Member
posted March 03, 2004 09:07 AM
One thing to consider in choosing radiator size, is the amount of water your putting at the very front of the car. Water weighs around 8 pounds per gallon, so that's a lot of weight added to front %! On my car, I think that 12 pounds moved from front to back equals 1% of weight.

Just something to keep in mind.

Raz_900
Member
posted March 03, 2004 01:10 PM
We use 19x28 in ours. We had a 19x31 that just fit in the metric frame rails with like 1/2" clearance. Well, first moderate wreck and it was s****. The 28 gives about 2" on each side to let things give and bend a little without destroying the rad too. It sux bad enough having the front end beat up, adding a $200 rad to the bill sux even worse.


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