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421 cheetah porting


B.b.p builders

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So I'm in the process of finding someone to port my motor, sent out a few emails(I'm not one for calling, I find in email much more can be explained without forgetting key questions) one reply, from Eric at empire. From what I read a good choice for a cheetah pv motor. BUT certain key questions were "can it be ported get maximum power and run CPI big bore pipes?" This question was important cause I have a set of oof laying around in the garage and a buddy of mine has a set of In frames to sell, he said yes, but I asked about carbs cause I don't have any yet, I told him I wanted to run lectrons, he said to get a set if 44mm lectrons? I run 40mm lectrons on my 535 meth drag bike, does this seem odd? I know, I know guys always say builders know best, but? Also turn around time only 4 weeks, not bad, plus he is going to dyno it for me, cause I told him I want a killer 421 pv motor that I can put a dyno sheet up here at Bhq! Not many in the dyno room.

There are guys around here that seem to know lots about lots of this stuff, let me know what u think.

Thanks

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Sounds like he thinks you're building an all out Dune/drag play bike. Did you remind him that this is a trail motor you're wanting done? The second you tell a builder OOF pipes...... It's a different ball game in their head. Especially when you mention wanting a dyno sheet for bragging rights. Who knows, Eric may just make that thing destroy your 535.

Edited by trickedcarbine
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Well really that's what I want!!! That's what I told him an all out play bike, that I can drag race when I want. I hope it does destroy my 535, cause I will then pull it and ship it to him also!!

And yes I told him I was a Bhq member and there is not many dyno sheets of the 421 cheetah in the dyno room, I also mentiond how much down talk there is of the pv cheetah motor about how it just can't make the power per cc as a cub(so everyone says. So I said I wanted(if it's possable) my exact words to prove different.

He didn't give me possable #'s, or sAy he could or couldn't, lol all he said was my CPI bb pipes will be perfect, get a billet basket case the power he will give me will destroy the stock basket, and get 44mm lectrons!! Lol

I like him! Straight to the point no beating around the bush, or pussy farting around!!

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Carbs need to be matched to the expected output of the setup, not to the CC or whatever you think you need.

 

You are NOT going to find many builders that will want you to run big bore pipes. It is interesting he said they would be perfect.

 

The reason you dont see many 421 cheetah dyno sheets is it is probably the least common cheetah short of a 465. Seems most of the 68 bore cheetos were stock stroke.

 

Wildcard built my 392 and when i decide to go bigger he will do it also. The 421 cub is arguably the best bang for the buck power so it makes me wonder what a 421 cheeto is capable of.

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