Hangar 9 nut Posted July 8, 2015 Share Posted July 8, 2015 Can anyone tell me or point me in the right direction to find out the exhaust port timing on an OS 40fsr I have found a table for length on the Bolly site but need timing for exhaust port ! Thanks in advance ! Quote Link to comment Share on other sites More sharing options...
Steve Dunning Posted July 8, 2015 Share Posted July 8, 2015 I'll measure the pipe length on my OS 45 FSR if it's any help. On a Purple Pipe it runs very sweet with flexible performance in my Supra Fly 45. Steve Quote Link to comment Share on other sites More sharing options...
Hangar 9 nut Posted July 9, 2015 Author Share Posted July 9, 2015 Thanks Steve I will be putting a purple pipe on it so your info would help ! Quote Link to comment Share on other sites More sharing options...
Steve Dunning Posted July 19, 2015 Share Posted July 19, 2015 Hi Tony Length of manifold is 217mm, just as it came from Weston UK. Steve Quote Link to comment Share on other sites More sharing options...
Hangar 9 nut Posted July 19, 2015 Author Share Posted July 19, 2015 Thanks Steve I will be doing some tests next week ! Quote Link to comment Share on other sites More sharing options...
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