sleeper06 Posted December 28, 2008 Report Share Posted December 28, 2008 Im running a rocket ship of a drag port from jeff (stock cyl) there is no dead spot ,plenty of bottom end,so much im having a hard time shiftng due to holding on My motor would be 100% dunable if i wanted, I took it in the woods up state from me it was sick Quote Link to comment Share on other sites More sharing options...
banshee332 Posted December 28, 2008 Report Share Posted December 28, 2008 Im running a rocket ship of a drag port from jeff (stock cyl) there is no dead spot ,plenty of bottom end,so much im having a hard time shiftng due to holding on My motor would be 100% dunable if i wanted, I took it in the woods up state from me it was sick I ran my drag motors out in the woods a few times to. Om my stock chassi's. Not a long ride but just playing around and it had power all the way through to Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted December 28, 2008 Report Share Posted December 28, 2008 Call Eric Gorr if you want a good dune cylinder. Haven't found anything else that would run like my gorr cylinders do for the dunes. Quote Link to comment Share on other sites More sharing options...
bansheefreak Posted December 28, 2008 Report Share Posted December 28, 2008 passion is JUNK dogg. bottom line. out of 10 guys who have their motors maybe 2 run right. get rid of that crap and do a 4mm setup from kevin. you will be a lot happier. guess i musta got lucky... good thing i got the jugs used... Quote Link to comment Share on other sites More sharing options...
sled Posted December 28, 2008 Report Share Posted December 28, 2008 I have a HJR ported 4mill and i must say that thing is amazing!!! killer mid range with crazy top end power. Kevin helped me with any question i had, all around great guy. he even talked to my machine shop and told them how to machine my stock head to work. all and all my motor turned out great!! Jeff from fast was also very helpful when ordering parts and building my motor. two great guys, hands down. I would say either FAST or HJR for a badass dune port. I know jeff has a lot of happy customers too! Quote Link to comment Share on other sites More sharing options...
yamaha11 Posted December 28, 2008 Author Report Share Posted December 28, 2008 I have a HJR ported 4mill and i must say that thing is amazing!!! killer mid range with crazy top end power. Kevin helped me with any question i had, all around great guy. he even talked to my machine shop and told them how to machine my stock head to work. all and all my motor turned out great!! Jeff from fast was also very helpful when ordering parts and building my motor. two great guys, hands down. I would say either FAST or HJR for a badass dune port. I know jeff has a lot of happy customers too! i had to send my cylinders back to jim the first time because it had hardly any power costing me 100 to ship them back and forth. he said he fixed them but i think now its a full drag port. it runs hard just hard to dune here in michigan. think its time for change. Quote Link to comment Share on other sites More sharing options...
wesw Posted December 28, 2008 Report Share Posted December 28, 2008 whats your compression whats your pipes what carbs is your setup. i had a quasi duner drag port from jim and lugged it around all day. what did you tell jim how you wanted the power, he is good at setting it up for what you want. will say shawn bike first setup of domes compression was low and it didnt pull down low got some domes that were perfect to his weird measuring motor and ran great. but sounds like your not happy follow everyones advice go somewhere else. ill take those jugs off your hands if you dont want them so bad. Quote Link to comment Share on other sites More sharing options...
yamaha11 Posted December 28, 2008 Author Report Share Posted December 28, 2008 whats your compression whats your pipes what carbs is your setup. i had a quasi duner drag port from jim and lugged it around all day. what did you tell jim how you wanted the power, he is good at setting it up for what you want. will say shawn bike first setup of domes compression was low and it didnt pull down low got some domes that were perfect to his weird measuring motor and ran great. but sounds like your not happy follow everyones advice go somewhere else. ill take those jugs off your hands if you dont want them so bad. ill hook you up if you want them pm if your interested i have cpi pipes 185 psi and 35mm carbs. they run hard just not to my likings Quote Link to comment Share on other sites More sharing options...
sled Posted December 28, 2008 Report Share Posted December 28, 2008 i had to send my cylinders back to jim the first time because it had hardly any power costing me 100 to ship them back and forth. he said he fixed them but i think now its a full drag port. it runs hard just hard to dune here in michigan. think its time for change. that sucks, all i did was call Kevin and talk to him for about half hour about my build. i sent him the jugs and they were back in a week. The bike runs so good, I love riding it! Quote Link to comment Share on other sites More sharing options...
wesw Posted December 28, 2008 Report Share Posted December 28, 2008 ill hook you up if you want them pm if your interested i have cpi pipes 185 psi and 35mm carbs. they run hard just not to my likings nah got me some stockers fresh off topend going to be worked up by march from jim. for a duner bike. Quote Link to comment Share on other sites More sharing options...
yamaha11 Posted December 28, 2008 Author Report Share Posted December 28, 2008 that sucks, all i did was call Kevin and talk to him for about half hour about my build. i sent him the jugs and they were back in a week. The bike runs so good, I love riding it! how does it run have lots of power every where Quote Link to comment Share on other sites More sharing options...
sled Posted December 28, 2008 Report Share Posted December 28, 2008 I wouldn't say power everywhere. its pretty much all mid range to top. it has a little bottom end with a very beefy mid range and killer top end. you can ride trails all day without a problem. Quote Link to comment Share on other sites More sharing options...
spurdy Posted December 29, 2008 Report Share Posted December 29, 2008 wondering if i should 4mm dune port my cylinders or just stock stroke dune port. i want to send them to herr juggs. the only reason i ask is because i have a 4mm passion port and its more of a drag port than a dune and i have another motor with a stock stroke and i could use that motor with a dune port and leave my passion motor all together. will there be a big difference in power from a 4mm to a stock stroke . thanks I've also got a 4 mill dune port from Kevin. I run 35mm PWKs with CPIs at about 195psi. It is a great dune bike! Has plenty of low end and pulls nicely through the RPM range. I haven't had it on a Dyno in awhile but I am guessing its around 75-80hp which is what Kev said it would be. Not to mention that he is always there to answer questions. I have seen alot of Jeff's bikes run and they run well also. I do business with him as well since he is close and he is an awesome guy. SP Quote Link to comment Share on other sites More sharing options...
yamaha11 Posted December 29, 2008 Author Report Share Posted December 29, 2008 I've also got a 4 mill dune port from Kevin. I run 35mm PWKs with CPIs at about 195psi. It is a great dune bike! Has plenty of low end and pulls nicely through the RPM range. I haven't had it on a Dyno in awhile but I am guessing its around 75-80hp which is what Kev said it would be. Not to mention that he is always there to answer questions. I have seen alot of Jeff's bikes run and they run well also. I do business with him as well since he is close and he is an awesome guy. SP thats what i need a good all round good pulling motor Quote Link to comment Share on other sites More sharing options...
tundish2800 Posted December 29, 2008 Report Share Posted December 29, 2008 Mitchell are you gettin nervous about this season?? Quote Link to comment Share on other sites More sharing options...
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