Author Topic: Mini-tooth (Read 46393 times)

seanoktm · « **Reply #30 on:** June 29, 2014, 11:18:22 AM »

The liger is cast by cp industries just like the saber,puma and sphinx. Here is a picture of a liger cylinder

patman13mia · « **Reply #31 on:** June 29, 2014, 04:24:02 PM »

how much are those suckers??

GO OVRIT · « **Reply #32 on:** June 29, 2014, 06:07:07 PM »

I imagine the cylinder is expensive, but the supporting mods probably make the cylinder price seem cheap in comparison.

Pumashine · « **Reply #33 on:** August 03, 2014, 03:37:30 PM »

Quote from: rsss396;31138

So is that the caracal cylinder, it's obviously set up to be set up on a twin and that would be the clutch side cylinder
very cool

Very close Dave. This was a triple set built for a specific customer that was never completed. Must have been the middle one cause both sides of mine have the flat spot that is machined when they are fit together.

The cases were sanded to make clearance for the intake manifold section of the cylinder. I am having to build my own intake manifold as there are none small enough to hold the 40mm smartcarb. I have to put a small relief in the manifold to clear the cases

ytman · « **Reply #34 on:** August 03, 2014, 04:29:03 PM »

I'm not even a big motor guy and I got a boner.

udontknowme · « **Reply #35 on:** August 03, 2014, 06:02:32 PM »

sweet. what do you got there ? im not real familiar with the cp stuff

Pumashine · « **Reply #36 on:** August 03, 2014, 06:25:49 PM »

Quote from: udontknowme;40328

sweet. what do you got there ? im not real familiar with the cp stuff

I'm not real sure what it once was, but now it is a mini-tooth 486cc dune motor. These cylinders came off a triple.

rsss396 · « **Reply #37 on:** August 03, 2014, 09:28:52 PM »

Awesome Tony I sure your going to like the power!

Pumashine · « **Reply #38 on:** August 03, 2014, 09:42:14 PM »

Quote from: rsss396;40337

Awesome Tony I sure your going to like the power!

Have you ever seen anyone make use of the power valve?

sameltoe · « **Reply #39 on:** August 03, 2014, 10:18:08 PM »

Quote from: Pumashine;40340

Have you ever seen anyone make use of the power valve?

But we've all been told a pv is useless above 330

Pumashine · « **Reply #40 on:** August 03, 2014, 10:44:24 PM »

Quote from: sameltoe;40342

But we've all been told a pv is useless above 330

The guy was a freakin genius. I am thinking there is a reason he spent alot of time outfitting these 1200cc motors with power valves. Don't ya think?

udontknowme · « **Reply #41 on:** August 03, 2014, 11:17:36 PM »

Quote from: sameltoe;40342

But we've all been told a pv is useless above 330

when you live in a fairly tale world you can pretend to be anything you want !! :carlos:

which reminds me. every sentance he posts has a "IMO" at the end of it. probly because hes never tested anything himself so he cant answer any question with a factual answer. "IMO" leaves him an escape route out the back door when someone proves him wrong

sameltoe · « **Reply #42 on:** August 03, 2014, 11:17:46 PM »

Quote from: Pumashine;40347

The guy was a freakin genius. I am thinking there is a reason he spent alot of time outfitting these 1200cc motors with power valves. Don't ya think?

I would think so!
I like the pv personally... makes her smooth to ride...

rsss396 · « **Reply #43 on:** August 04, 2014, 06:42:04 PM »

I hunted down a used power valve for a saber in Canada, not sure how it ever worked out for him.
i know CP is not going to offer a power valve on the sphynx anymore because of issues of not getting good performance with them. If you could operate it with a electric servo motor and custom cdi to operate it (Ignitech does this) then I think you could make a great running power valve motor the pressure operated ones work ok with snowmobiles because they never use the over rev part of the power band. In over rev the pressure drops in the pipe and the power valve starts to close killing the over rev.
keeping the exhaust port port timing low will build you allot of low end power and is much simpler and reliable

Jerry Hall · « **Reply #44 on:** August 05, 2014, 11:42:55 AM »

Quote from: rsss396;40373

................ then I think you could make a great running power valve motor the pressure operated ones work ok with snowmobiles because they never use the over rev part of the power band. In over rev the pressure drops in the pipe and the power valve starts to close killing the over rev..................

YES.....YES.........YES........

It is very refreshing to see others are beginning to see some of the shortcomings of the pressure operated power valves. I started trying to improve on the pressure operated valves on the Rotax road racing engines in the mid 1980s. I gave up after a few years of beating my head against the wall on this primitive method of operating and controlling a two stroke exhaust valve.