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Is It Worth It To Run High Compression?


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Depends on what you consider "high compression" and how "high" the compression is. Mine is around 148 on both. Which for me is perfect, it is higher than the stock 120 - 125, but not so much that I risk pounding my crank, nor do I have the need for high octane race fuel, 92 is just right for me. There are some running 170, but that's too high for my taste, and you might need some crank work when your that high. Just stick with 150 and under and you'll be fine, and be enjoying and little more power than you had before.

 

Scott

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About how much does it raise temps?  I'm thinking about shaving my head to bring it up to about 150psi.

Don't actually know the figure, maybe someone can help me with that, but it's not too much, just enough to offset the gain w/ the coolhead. You should be alright to shave the head, provided your not fighting an overheating issue now.

 

My recommendations, if you haven't already done so, is a Pro Design impeller, replace all coolant with Engine Ice coolant, runs 45 to 50 degrees cooler alone, and maybe a couple inline coolers, good for 5 degrees a piece. You do those things and you shouldn't have overheating problems unless you got a problem with the radiator, detonation, or are running the Baja in the dead of summer and weigh 290. You can do that around the same time for not hardly any money and really help. Engine Ice is really good shit, I'd do it right now, before summer, no matter what mods you have or don't have.

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