Piediddy Posted August 19, 2014 Report Posted August 19, 2014 Well I finally got to ride mine in sand. Although I'm still jetting on it and playing with timing it feels sluggish on the bottom but when it takes off it rips. Feels like it takes a while to get in the band. It's a 535 with CPI Big Bore inframes and 38 PWK's. not sure what the porting #'s are and it don't have the PV's in. I bumped the timing from +4 to +6 and it woke up a little bit. I might take cylinders off and have em checked. I'm wanting more of a Duner that will still run good. Thanks for any advice. Quote
Coupelx Posted August 19, 2014 Report Posted August 19, 2014 If it does not have the valves it will be sluggish on the bottom. Cheetahs have "drag" porting. Quote
trickedcarbine Posted August 19, 2014 Report Posted August 19, 2014 Well I finally got to ride mine in sand. Although I'm still jetting on it and playing with timing it feels sluggish on the bottom but when it takes off it rips. Feels like it takes a while to get in the band. It's a 535 with CPI Big Bore inframes and 38 PWK's. not sure what the porting #'s are and it don't have the PV's in. I bumped the timing from +4 to +6 and it woke up a little bit. I might take cylinders off and have em checked. I'm wanting more of a Duner that will still run good. Thanks for any advice.who set it up? Quote
Piediddy Posted August 20, 2014 Report Posted August 20, 2014 I bought it from a guy who is affiliated with Cotton Branch Racing. But I had Luke of Luke's Racing engines replaced the override trans with a pro mod and put all new bearings, seals etc in it. As well as new reeds and carbs. Was thinking about trying the PV's in it. Quote
slobanshee Posted August 20, 2014 Report Posted August 20, 2014 I'm gonna try and get it dynod at little Sahara, ok. I haven't had much time to get the jetting done on it and its Still pretty rich even with smallish jets in the 34pjs. Considering going to bigger carbs before the bhq ride. Before I mention the alternative valves I would like to Dig out my notes on them so I get the right info the first Time. When are you headed to Sahara? I'm in ponca city and we run over a lot. With the PVs in it still has a "power band" feel to it. Just come in very early. Food for thought--My wife drag races with it and we took the PVs out simply for less mess from the oil. She was light enought it didn't affect it. Quote
10milmike Posted August 20, 2014 Report Posted August 20, 2014 I bought it from a guy who is affiliated with Cotton Branch Racing. But I had Luke of Luke's Racing engines replaced the override trans with a pro mod and put all new bearings, seals etc in it. As well as new reeds and carbs. Was thinking about trying the PV's in it.Did you buy Brent Kelly's 535? 1 Quote
camatv Posted August 20, 2014 Report Posted August 20, 2014 i build my own motors. the one skeet has i did. its not all out crazy. but when tanner had it it ran really good for a 400 Quote
Piediddy Posted August 20, 2014 Report Posted August 20, 2014 Did you buy Brent Kelly's 535? yea that's the one, I forgot his name. I been sitting back reading about the domes, porting and having it setup rite. I might pull cylinders and domes and send to someone. I did a compression test on it and got 168 in each. I just want it rite. Quote
10milmike Posted August 20, 2014 Report Posted August 20, 2014 That motor is built right. I use to have to specs on that motor. Brent sent me them before. That motor was built for drag. He use to run 1/8 with that motor. Quote
10milmike Posted August 20, 2014 Report Posted August 20, 2014 Looking for the port timings I have it in a old text message. Quote
10milmike Posted August 20, 2014 Report Posted August 20, 2014 yea that's the one, I forgot his name. I been sitting back reading about the domes, porting and having it setup rite. I might pull cylinders and domes and send to someone. I did a compression test on it and got 168 in each. I just want it rite.Ok this what I found in old texts. Motor was ported by CP customs. Ex port is 200 and transfers is 130 plus 6 timing. Motor was set up for nos. Motor on alky made 145/86 tq. With 44 lectrons set up by Dennis. Hope that helps you. Quote
Piediddy Posted August 20, 2014 Report Posted August 20, 2014 Thanks Mike that definitely helps. Has the same domes and Luke put in a base gasket to lower compression cause I wanted to run C12. Anyway of making it more Duner friendly? PV's? I originally was building a Cub, but when I sent my bottom end, cool head, reeds, and intakes to Redline it made it halfway and UPS lost it lmao. I'm only about 2 hours from Brent and bought this Cheetah. Quote
10milmike Posted August 20, 2014 Report Posted August 20, 2014 The changes to the base gasket are to to fuck with the port timings. Try the pvs and have them port matched. 168 lbs of compression is good for c12. Why did you want to lower the compression? Quote
Piediddy Posted August 20, 2014 Report Posted August 20, 2014 I don't want to lower compression. I think I spoke to u before and you had a set of PV's for sale? I guess what I'm asking is can it be a fun trail/Duner that hauls ass also? Or should I trade it for something smaller and better suited? Quote
trickedcarbine Posted August 20, 2014 Report Posted August 20, 2014 Try the PV's. You'll have to pop the head and make sure the exhaust port isn't to wide for 'em. Also cycle the valve to see that it is able to open all the way. If not you may have to profile it a touch Quote
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