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Shadetree · 03-02-2012, 04:58 PM

The one advantage I like is the sound it gives a car with dual exhaust. The pennies block the exhaust gasses from crossing over to the other side and equalizing the pressure. An old dirt track racer told me they blocked the heat risers to get a little more power. I guess the thinking was the cooler gas would be more dense and perform better.

Too, with today's alcohol-gasoline it might help prevent the gas from boiling in the carb.

Just my thoughts...

Shadetree

03-02-2012, 04:58 PM	#4
Shadetree Senior Member Join Date: May 2010 Location: Cottageville, WV Posts: 1,535	Re: Blocking Off heat Risers The one advantage I like is the sound it gives a car with dual exhaust. The pennies block the exhaust gasses from crossing over to the other side and equalizing the pressure. An old dirt track racer told me they blocked the heat risers to get a little more power. I guess the thinking was the cooler gas would be more dense and perform better. Too, with today's alcohol-gasoline it might help prevent the gas from boiling in the carb. Just my thoughts... Shadetree __________________ Son, you will never blow an engine up in high gear.