Geoff Posted November 14, 2006 Report Share Posted November 14, 2006 Ok I've wondered this for awhile and hoping HQ'ers can help answer it. Why is it that you can run dual 38's but if you switch to a single you'll run a 35 or 38? Why is it the same or less with a single even though the engine still has the same fuel demands. I mean you have a 38mm carb for each cylinder and then now your trying to have a single 38mm carb do the same job. To me it would seem that when you switch to a single it should be like a 41-44mm carb or something(just throwing out some numbers) to do the job. I'm into old cars/trucks an say your running around with a dual carb setup your running 2 400cfm carbs.....if I switch to a single carb intake I don't run 1 400cfm or 500cfm I run like a 750cfm or there abouts, you follow me? Help explain this to me guys. Thanks Geoff Quote Link to comment Share on other sites More sharing options...
bansheeseat$$ Posted November 14, 2006 Report Share Posted November 14, 2006 Geoff, The easiest way to explain it would be that it pulls the air from each cylinder at a time not both cylinders at the same time.for example try breathing in threw your nose while taking your thumbs and block of one nostroll at a time while still inhailing threw your nose.Yes both nostrills open is easier but one at a time still pulls air in for that side.Hope that helps explain it a little. Quote Link to comment Share on other sites More sharing options...
bad99banshee Posted November 14, 2006 Report Share Posted November 14, 2006 Ok I've wondered this for awhile and hoping HQ'ers can help answer it. Why is it that you can run dual 38's but if you switch to a single you'll run a 35 or 38? Why is it the same or less with a single even though the engine still has the same fuel demands. I mean you have a 38mm carb for each cylinder and then now your trying to have a single 38mm carb do the same job. To me it would seem that when you switch to a single it should be like a 41-44mm carb or something(just throwing out some numbers) to do the job. I'm into old cars/trucks an say your running around with a dual carb setup your running 2 400cfm carbs.....if I switch to a single carb intake I don't run 1 400cfm or 500cfm I run like a 750cfm or there abouts, you follow me? Help explain this to me guys. Thanks Geoff The cylinders are 180 degrees off from each other.... one is sucking while the other one is blowing. Quote Link to comment Share on other sites More sharing options...
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