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Cheetah Cylinders


Banshee SE

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No....I threw the book at my cheetah motors.

They were the first of the CP cylinders. Calvin told me himself that they were an "obsolete design".

 

The few members who have impressive cheetahs(CAMATV and a few others)....also have 350's that beat drag bikes.

 

I still don't see dyno numbers for any of those bikes. If we did....smaller cubs could match the bigger cc cheetah numbers.

So in my opinion, it's clearly rider and set-up working for them as opposed to motor.

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I have cheetah. Its been throw 3 builders. The first was Trinity and it was a shit bomb. The second I will not say. But the bike ran good no problem. Then I took it to shearer, he throw it on his dyno and it was a dog for 10 mil. 97 HP 47 tq. I sucked in a reed screw two weeks later fucking up the motor. So told mat to rebuild my motor. On Gas. It made 114 HP and 64 tq. That's huge difference in numbers. Just pick the right builder and u will be happy. Putting my 41mm alky carbs on this week. Motor should be in the 120 range now.

 

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I have cheetah. Its been throw 3 builders. The first was Trinity and it was a shit bomb. The second I will not say. But the bike ran good no problem. Then I took it to shearer, he throw it on his dyno and it was a dog for 10 mil. 97 HP 47 tq. I sucked in a reed screw two weeks later fucking up the motor. So told mat to rebuild my motor. On Gas. It made 114 HP and 64 tq. That's huge difference in numbers. Just pick the right builder and u will be happy. Putting my 41mm alky carbs on this week. Motor should be in the 120 range now.

 

Sent from my DROID RAZR using Tapatalk 2

I agree with this.^^^ Pick a builder who is familiar with Cheetahs & PV's if you plan on keeping them and you'll be happy. 

I also understand what people have said about the power- to- CC ratio of a Cheetah vs std Cub cyls.  An alky 10mm/535 Cheetah should make 120HP on Alky,,,but 10mm Cubs on alky get real close to that as well. For sure within 5 HP. So a lot  of it depends what you are planning to do with the motor. I wouldn't get into chasing numbers (like the example i used, 5hp) unless its a full on , nothing but, drag bike. As far as PV vs non PV in a drag race, i'll leave that up to those who have experience in using both.

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I have cheetah. Its been throw 3 builders. The first was Trinity and it was a shit bomb. The second I will not say. But the bike ran good no problem. Then I took it to shearer, he throw it on his dyno and it was a dog for 10 mil. 97 HP 47 tq. I sucked in a reed screw two weeks later fucking up the motor. So told mat to rebuild my motor. On Gas. It made 114 HP and 64 tq. That's huge difference in numbers. Just pick the right builder and u will be happy. Putting my 41mm alky carbs on this week. Motor should be in the 120 range now.

 

Sent from my DROID RAZR using Tapatalk 2

Your 535 cheetah is making nearly the same power as sprinklerman's 465 cub. (And a few other member's 10mill cubs)

 

Not saying those numbers aren't impressive....

Not bashing the motor or builder.

But I still haven't seen a P.V. Cheetah out perform a similar sized Cub. And Cheetahs with crank strokes smaller than 10 mill show even lower CC/HP/TORQUE ratios.

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^^^^I agree. But remember, he also thought it ran great when it was only making 97/47.

The DYNO showed him what a good running motor really was. I'm sure he's very happy with the 114/64.

A motor that makes 97/47 is no slouch. But if your motor is a 10 mill 535....I can guaranty it was built with bigger numbers in mind since an unported 421 cub can hit that.

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Your 535 cheetah is making nearly the same power as sprinklerman's 465 cub. (And a few other member's 10mill cubs)

 

Not saying those numbers aren't impressive....

Not bashing the motor or builder.

But I still haven't seen a P.V. Cheetah out perform a similar sized Cub. And Cheetahs with crank strokes smaller than 10 mill show even lower CC/HP/TORQUE ratios.

All well and good, but are 10 mil cubs making as broad of a curve as 10 mil cheetahs? I've only recently accepted the fact that my new motor will be 10 mil so I'm really looking at what cubs can do in the right hands. I have been looking at 10 cubs that throw out the exact same type of curve as a serval but carry up in to the RPM's for another 20 HP.
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Your 535 cheetah is making nearly the same power as sprinklerman's 465 cub. (And a few other member's 10mill cubs)

 

Not saying those numbers aren't impressive....

Not bashing the motor or builder.

But I still haven't seen a P.V. Cheetah out perform a similar sized Cub. And Cheetahs with crank strokes smaller than 10 mill show even lower CC/HP/TORQUE ratios.

 

 

No offense but comparing different dyno numbers from different dynos, locations, DA and possibly different correction factor is pretty moot. I think a trap speed or some sort of track results should be a good way to compare. Racing dynos is pointless. Id LOVE to have a setup that puts out shit power SAE corrected but fucks shit up on the track or street where it matters.

Edited by hughmyron
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