shee570 Posted April 17, 2009 Report Posted April 17, 2009 Hi, I got a set of cpi out of frame pipes and I'm just wondering what kind of exhaust duration they are design for ..... 194.... 196.... 198.... ?? Quote
Snopczynski Posted April 17, 2009 Report Posted April 17, 2009 Hi, I got a set of cpi out of frame pipes and I'm just wondering what kind of exhaust duration they are design for ..... 194.... 196.... 198.... ?? They start to work well around 192 degrees or so. Quote
2003LimitedBanshee Posted April 17, 2009 Report Posted April 17, 2009 I was sort of wondering the same question. I've got my eyes out for a set of inframes over the next couple months and I want to port a set of cylinders to go with the pipes, for a dunes setup. Was thinking of a 194* ED with 130* TD. What kind of riding are you doing with them? Assuming it must be drag or dunes? Quote
2strokespirit Posted April 17, 2009 Report Posted April 17, 2009 194 upwards they start to shine... Quote
shee570 Posted April 17, 2009 Author Report Posted April 17, 2009 yes its for drag racing already got the exhaust at 194...... I was wondering how much more duration I could take and what rpm they are design for ....I think they peak around 9600-9700 but not sure about that .Any body know what rpm they like ? thank you Quote
2strokespirit Posted April 17, 2009 Report Posted April 17, 2009 yes its for drag racing already got the exhaust at 194...... I was wondering how much more duration I could take and what rpm they are design for ....I think they peak around 9600-9700 but not sure about that .Any body know what rpm they like ? thank you Yes, if you wanne drag, go even higher then 194, they will do the trick.. Quote
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