hercalmighty Posted April 21, 2016 Report Share Posted April 21, 2016 Cam, I agree with you. The problem is that not many builders seem to even want to touch them. Then there is the whole thing about the intakes being too big for the cylinder. I think it's bs considering that the dm's are running bigger intakes. There just doesnt seem like there is a lot of info on them out there and the people that do have info for the monster cheetahs don't want to share even a little bit of info. The serval seems to have a ton of testing on them and a lot of the bugs were worked out from having the cubs out for so long. I would love to get these cylinders massaged a little and put it on a dyno Sent from my VS990 using Tapatalk Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted April 22, 2016 Report Share Posted April 22, 2016 If Ida known that Ida talked to redline instead of building one instead of my serval. Broad power is what I wanted but screaming too end is something I tought was for drag cylinder stuff. Oh well, I'll be happy as is. Quote Link to comment Share on other sites More sharing options...
camatv Posted April 22, 2016 Report Share Posted April 22, 2016 i have told a few how to set up the exhaust with the valve and even then they get scared and dont do it because its not the "norm" i did a 400 pv with a 207 open degree exhaust.. it wouldnt bog with 14 extreme stagger's on it.. the intakes are not too big.. i have heard that some say the super's intakes are too small.. the pv cheeta's also mostly use a lot less jet and can be more efficient in their burn. i personally believe it is the larger intake size and the larger flow draws a better signal through the carb. 1 Quote Link to comment Share on other sites More sharing options...
gusto Posted April 22, 2016 Report Share Posted April 22, 2016 So who are the top pv builders? Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted April 22, 2016 Report Share Posted April 22, 2016 i have told a few how to set up the exhaust with the valve and even then they get scared and dont do it because its not the "norm" i did a 400 pv with a 207 open degree exhaust.. it wouldnt bog with 14 extreme stagger's on it.. the intakes are not too big.. i have heard that some say the super's intakes are too small.. the pv cheeta's also mostly use a lot less jet and can be more efficient in their burn. i personally believe it is the larger intake size and the larger flow draws a better signal through the carb. That's weird about the smaller jetting. With my 39 pwks I'm at 50 pilot and 178 mains. Sent from my VS990 using Tapatalk Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted April 22, 2016 Report Share Posted April 22, 2016 So who are the top pv builders?The only two that I know that will work on them are Andy at no limit powersports (old m&m) and wildcard. Wildcard is out of the business now. I'm sure there are others out there but no idea who does them. About a year ago I talked to Cam at redline and he said he doesn't mess with them. Sent from my VS990 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Sandking Posted April 22, 2016 Report Share Posted April 22, 2016 If big results could be had wouldn't Redline be all over these, or is it just the price. I've always thought the pv set up would be optimal but there's just minimal results ever posted. 1 Quote Link to comment Share on other sites More sharing options...
JTmachining Posted April 23, 2016 Report Share Posted April 23, 2016 Cam at Redline has done PV Cheetahs. He did a 4mm Cheetah PV for Carlo last year. I'm stupid simple tho, I like less moving parts options better 1 Quote Link to comment Share on other sites More sharing options...
Sandking Posted April 23, 2016 Report Share Posted April 23, 2016 How did it come out I have been thinking of a 421 serval but the pv would be cooler. Quote Link to comment Share on other sites More sharing options...
camatv Posted May 9, 2016 Report Share Posted May 9, 2016 umm i have built many pv cheeto's.. hence the long response posted.. right now i am actually starting to play around with the so called dinosaur trex cylinders have 3 of them now a ???? stroker working on a building a 535 10 mill and going to be doing a 400cc turbo in the next year or 2.. they have a better head design and very strong cylinder but the porting layout is far far from optimal.. Quote Link to comment Share on other sites More sharing options...
Whitbread Posted May 9, 2016 Report Share Posted May 9, 2016 (edited) I would have loved to buy that 468 t Rex setup that's in the classifieds and built another. Like cam said, it took a bit of work, but my dinosaur 421 Rex also seems to run pretty damn good now that I have a real set of real pipes on it. I'm used to porting car heads, so to me the port work was minimal effort in comparison to a 16v head. I'll know much more once I toss a wide band and on and go for a tuning session. Going to change from alpha n tuning to Itb mode which is speed density down low and alpha n up top. Should cure the couple funny transition areas I'm not 100% happy with. My valve open timing is 203-204° exhaust and 134-135° intake. Valve down its 195-196°. Edited May 9, 2016 by Whitbread Quote Link to comment Share on other sites More sharing options...
PaymentPlan Posted May 9, 2016 Report Share Posted May 9, 2016 Harry sold trinity but kept the rights to the Cheetah. ( power valve cub ) He is now working under McDermott Racing.I thought cheetah is a cylinder in itself. Without bringing the cub name into it. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted May 10, 2016 Report Share Posted May 10, 2016 I thought cheetah is a cylinder in itself. Without bringing the cub name into it.Yes Quote Link to comment Share on other sites More sharing options...
PaymentPlan Posted May 10, 2016 Report Share Posted May 10, 2016 (edited) YesIn an earlier post you said "cheetah ( power valved cub )". It made it sound like cheetah and cub are the same thing. Edited May 10, 2016 by controls77 Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted May 10, 2016 Report Share Posted May 10, 2016 Yes. Cheetah..... Just Cheetah, is pretty much a cub cyl with power valves and 250r intakes. Cheetah Cheetah cub Serval cub Wampus cub Wampus serval (wampus cyls are meant to look stock) Super (means 72mm bore in any of the above combos) DM (74mm-80mm ish) DMX (80+ mm) Then you get the real monsters Jmadd mentioned which are all spread bore and even larger bores then the DMX. Spread bore means the cylinders are located further apart then stock. That allows them to make the transfers larger to feed the larger motors. 1 Quote Link to comment Share on other sites More sharing options...
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