24 vs 28

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

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gsxrg
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24 vs 28

Post by gsxrg »

Just wanted to ask the experts. how much differance is there in a 24mm carb and a 28mm carb? This would be on a 72cc honda motor. Looking at top end speed. how much faster would it be?

Thanks in advance
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Wheelman-111
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Too Much Carb

Post by Wheelman-111 »

Greetings:

The Collective requires more information about your setup to answer precisely.

See Arreche 17.5 thread. Unless you port and open/tune exhaust, adding more carb does not always add speed. Sometimes it works against you, and makes part-throttle riding unpleasant.

In my case, the 17.5 is not the limiting factor to Flash's top of 60+. There's only so much 65 or 72cc can do...

YMMV
Wheelman-111
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"ISO": '03 Vespa ET4 Malossi187 74MPH
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burnt_toast
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Post by burnt_toast »

like wheelman said, depends on overall setup
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Post by maddog »

on smaller carbs you can mill the rear of the throttle slide 1ml. at a time ,thats old school.
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