RB Concept Forums: Average RPM

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Topic: Average RPM

gtofan
Member

posted

I know there are many variables so there is no definate answer...but for a 1/8 buggy, running a 18T clutch (middle of the ratios) and a 086 pipe, I have acheived speeds with the 18T of around 55-57 MPH and this would equate to around 37-38K.

For the C4, is this an average RPM, low or high? Just curious as I know they have been reported to run near 40K. Not trying to run wide open all the time but just trying to figure out how high these engines can run under load without adding too much internal stress.

I'm trying to adjust the high needle for this and while it runs strong now, i'm looking to keep it from running too lean.

Thanks.

Posts: 35 | From: VA | Registered: Sep 2006 | IP: Logged

RB Products - Rody
Administrator

posted

36 to 38000 is the right high rpm range for a buggy engine, you can always reach higher bet then the engine will not be efficient anymore.

Always try tp keep the engine running on the rich side of the settings, this if you want your engine to last.

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Posts: 5328 | From: Allevard, FRANCE | Registered: Jul 2002 | IP: Logged

gtofan
Member

posted

Thanks...yes I do run it a bit rich. Make a few speed runs without leaning out then I open the high about 1/8, cuts the speed slightly but it's fast enough.

Looking to try a 20T and see how it works [Razz]

Posts: 35 | From: VA | Registered: Sep 2006 | IP: Logged

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