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  #1  
Old October 26th 2004, 03:32
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Type 4 2.7lt cooling

I just finished my 2.7lt type 4 running a scat crank, carillo rods and chevy forged pistons. The compression ratio is 13:1. Will a normal type1 cooling system be enough or do I need to go for a porsche type setup when running with 102 octane fuel?

My previous engine ran on 100% menthanol, the menthanol helped with the cooling so I was able to drive the car without any fan housing.
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Old October 26th 2004, 09:47
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Preemptive strike:

Go over to shoptalkforums.com and check out the thread on Porsche setups. I think it's up to 7 or 8 pages by now.
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Old October 26th 2004, 16:37
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you will find a bunch of info here and on STF on the subject. some objective, some not. i have gone based on research and facts as much as possible. ran two systems and where i LOVE the looks of the 911 fan, i went with the better performer...a DTM.
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Old October 26th 2004, 16:58
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A DTM will help, but cast iron cylinders (if cast iron), are the limiting factor, so don't expect much in the area of engine life. But I assume that's not a big deal considering it looks like a drag or race engine only based on it's fuel requirements. Is that the case?

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Old October 26th 2004, 17:40
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Massive Type IV Massive Type IV is offline
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whew! at 13:1 You'll have head leaks with iron cylinders before it ever fires up without serious mods!

For that application I wouldn't think about doing any way other than with Nickies!
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Old October 27th 2004, 05:47
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Thanks guys. Will check those posts out.

I want to use the engine in a toy. Drag racing every now and again, stuff like that.

Funny enought there is no cylinder leaks... guess I'm just lucky.
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Old October 27th 2004, 16:45
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Look harder, or give it a little bit of time...

Fill you chambers with air and use a flame around the OD to look for leaks. When they start, they get big fast
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