assbandit Posted December 17, 2007 Report Share Posted December 17, 2007 i got my bike apart i'm not sure if i'm going to replace my cyinders with cubs or just keep my stock ported cylinders. I am definetly going stroke it 4 to 7mm. my stock cylinders scream but i just wanted everyones opinion on the port job and what kind of port job it looks like i had them ported by some guy on ebay that lives in arizona and i was just curious because it looks like he could of done a better job http://s187.photobucket.com/albums/x231/mc...p;paginator=top Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted December 17, 2007 Report Share Posted December 17, 2007 I would say that those cylinders have been opeaned up to far to be reported for a 4 mill crank. Quote Link to comment Share on other sites More sharing options...
Machwon Posted December 18, 2007 Report Share Posted December 18, 2007 The porting looks pretty good, although its impossible to tell by pictures what you really have. Most ported std. stroke cylinders can be made into 4mm's. For the 7mm's I prefer to use an unported set, so it does look like it has a bit too much transfer work for a 7mm set. Quote Link to comment Share on other sites More sharing options...
swrbansheeboy Posted December 18, 2007 Report Share Posted December 18, 2007 imo it all depends on how much power you want to end up with, if your trying to end up with a 75-100 hp bike then a cub is money well spent. you can do it the conventional way and end up with half the horse power you get from the same money you'd spend on a cub set up thats basicly bolt in/on... Quote Link to comment Share on other sites More sharing options...
badassbanshee479 Posted December 18, 2007 Report Share Posted December 18, 2007 to make the most power you should start with a set of unported cylinders if you wanna go to a stroker. Quote Link to comment Share on other sites More sharing options...
assbandit Posted December 18, 2007 Author Report Share Posted December 18, 2007 to make the most power you should start with a set of unported cylinders if you wanna go to a stroker. i would really like to go to a 7mm cub but i dont want to spend 2000$. and i dont understand why a 5mm stroker would make more displacement than a 7mm stroker? which is better? Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted December 18, 2007 Report Share Posted December 18, 2007 your gonna need to measure the intake sizes, transfer sizes, and exhaust port sizes. Also the intake and exhaust port heights and the transfer heights then report back. Most of the time when doing a stroker motor like say a 4mm. Then all the bottom port window heights have to be extended 2mm down. Also need to know the exhaust port width and your bore size. You cant tell much by just looking at pictures. Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted December 18, 2007 Report Share Posted December 18, 2007 You just dont slap a cub set of juggs on there and call it a day too, not sure if you know that. You will probably want a lockout and other parts that it takes to handle such hp. You figure your OEM parts are made to handle 30-40hp...not the crazy power of a cub. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted December 19, 2007 Report Share Posted December 19, 2007 Also, what types of riding do you do with this quad? Quote Link to comment Share on other sites More sharing options...
assbandit Posted December 19, 2007 Author Report Share Posted December 19, 2007 (edited) Also, what types of riding do you do with this quad? this is what i have so far pro design cool head 35mm pwk air strikers 4 degree timing advance v-force 2's k&n filter pods fmf fatty's 64.50 wiseco pro lite pistons dune ported cylinders billet clutch basket barnett dirt rigger clutch reed spacers white bros boost bottle stock crank alumimum water pump impeller i'm ready to step it up and i want to spend about a 1,000$ Edited December 19, 2007 by assbandit Quote Link to comment Share on other sites More sharing options...
J-Madd Posted December 19, 2007 Report Share Posted December 19, 2007 this is what i have so far pro design cool head 35mm pwk air strikers 4 degree timing advance v-force 2's k&n filter pods fmf fatty's 64.50 wiseco pro lite pistons dune ported cylinders billet clutch basket barnett dirt rigger clutch reed spacers white bros boost bottle stock crank alumimum water pump impeller i'm ready to step it up and i want to spend about a 1,000$ True and weld your crank $75 Cheetah cub (cast for stock stroke) $800 Pistons (65mm) $140. That'll work...well a little over, but you get the point, Or the 68mm set up..maybe $50 more or so. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted December 19, 2007 Report Share Posted December 19, 2007 So are those cylinders you bought the dune port cylinders? Or do you already have a set of dune port cylinders also? I assume you ride this quad in the sand? I dont recommend the cheetah cub for all around riding in the sand. It is a top end power oriented setup usually used for drag racing. If I did a setup like that I would roll with the cheetah power valve setup. Cheetah Link However, depending on what the porting is like in your current sets of cylinders, they may be able to be ported to run with a stroker crank. They need to be mic'ed out though. Quote Link to comment Share on other sites More sharing options...
kawiking Posted December 19, 2007 Report Share Posted December 19, 2007 man.. im having the same problem. i bought a 4 mill crank from badshee (thanks again ) but im not sure if i want to go cub or try and work the crank with my drag ported cylns. i really think mine have been opened up to much, im going to need to pull them and get them checked. i want to go cub but i dont need to be spending a grand right noe (baby on the way ). it was all a mind game till badshee hooked me up with a crank,. now i just sit there and look at it !! my bike runs damn good.. but i wish i would have waited and let jeff do a drag port and set it up for me. thats what i get i guess. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted December 19, 2007 Report Share Posted December 19, 2007 mic the cylinders and see if the ports still can be worked to run with the crank. Also need to check the exhaust port height to see where your duration is at. Quote Link to comment Share on other sites More sharing options...
kawiking Posted December 19, 2007 Report Share Posted December 19, 2007 yea , im going to have to just get them checked. id rather go cub, but i only have about 5 hrs on these ported cylns. plus i only got to ride my shee three times this summer. Quote Link to comment Share on other sites More sharing options...
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