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421 cub vs 421 serval


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tearing down my banshee and starting over fresh.i want a bike that performs well overall meaning that i want something that is trail friendly but is still capable of handing out ass whoopings on the drag strip.i understand that the cub is better suited for the track and the serval is a better trail bike.my question is which set up is better suited for trail/track as im going to be doing both types of riding almost 50/50.

 

little concerned about getting low end power out of the cub and top end pull from the serval advice on a good set up would be much appreciated.

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ported serval do a cub if ya only plan on racing. serval will give ya low end grunt ported will give ya some up top too.

lol might sound like a dumb question but bare with me...if i port my serval will i lose bottom end power?? only reason im asking is because i bought my banshee with ported stock cylinders and my bike has no low end grunt at all

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if i port my serval will i lose bottom end power?

So far redline is the only one who can port a serval without losing power down low that's ive seen dyno charts on here.

 

I rode one 4mil cub on race fuel in trails. Never again. That motor was terrible in trails. Although in the drag race it was beast mode.

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So far redline is the only one who can port a serval without losing power down low that's ive seen dyno charts on here.

 

I rode one 4mil cub on race fuel in trails. Never again. That motor was terrible in trails. Although in the drag race it was beast mode.

 

i was looking into buying a serval from f.a.s.t i talked to jeff he seemed like he knew his shit.never heard of redline i'll be looking them up though as a few of you suggested.

 

thanks for the input guys

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Andrep, go to a dyno-section and find out.

I think the Serval can be ported for more low to mid, or more from down to top.

They can be ported to a CUB timings or even to a "Drag ported" CUB numbers/angles/shapes.

 

I'm not a pro, but I think the biggest power will be found from a seriously ported "Serval".

Time will tell.

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