robert0762 Posted June 21, 2009 Report Share Posted June 21, 2009 Ne one running or got some info on the 12 port port job from these guys. I am thinking of using them and would like a lil input Quote Link to comment Share on other sites More sharing options...
yamaha11 Posted June 21, 2009 Report Share Posted June 21, 2009 Ne one running or got some info on the 12 port port job from these guys. I am thinking of using them and would like a lil input i had a 4mm 12 port from jim. it made alot of power was just hit or miss on the power for a duner motor. my herr juggs motor is must better imo. Quote Link to comment Share on other sites More sharing options...
wesw Posted June 21, 2009 Report Share Posted June 21, 2009 what kind of info do you want to know??? Quote Link to comment Share on other sites More sharing options...
shanYE west Posted June 21, 2009 Report Share Posted June 21, 2009 Passion builds a great dune motor and has some of the smothest power curves I've ever ridden. imo Wesw is a 12 port stud and can answer just about any question you have. :biggrin: Quote Link to comment Share on other sites More sharing options...
robert0762 Posted June 21, 2009 Author Report Share Posted June 21, 2009 I am looking to build a 4 mil trail bike.So i guess my ? is how is there port job for woods/mx? I just have not heard a lot of people talking about there work but that means nothing really . So I am just tryng to get some input from guys who have there work. Also I would like to know what the advantages of the 12 port design are and if it would be good for what I am going for Quote Link to comment Share on other sites More sharing options...
dmo421cub Posted June 21, 2009 Report Share Posted June 21, 2009 i had the passion racing 12 port job done by jim and that thing will fly. the set up i have wus the the 12 port job,cool head,with 19 cc domes on racing gas,35mm pwk,pancake bearing,rdz inframe drag pipes,10 over swingarm,jr dragster m/t slick and a few more things. and i wuz in the ball game buddy. you cant go wrong when you deal with jim at passion racing. i recent just got a 4mil 421 built on alcohol and i can wait to c how this thing gonna run Quote Link to comment Share on other sites More sharing options...
fastrthnu Posted June 21, 2009 Report Share Posted June 21, 2009 I have a passion 12port +4mm and it hauls ass. no complaints with power anywhere. its an aggressive trail/mx port. Quote Link to comment Share on other sites More sharing options...
278 Posted June 21, 2009 Report Share Posted June 21, 2009 I've heard both good and bad about him. Here's what most of these guys are going to tell you... call around and see who your most comfortable with. I would call Brandon at wildcard (number in my sig.) Kevin at Herr jugs and Jeff at FAST. See who you like all 3 of them are great guys, do awsome work and will help you with anything. I just personally prefer Brandon for my work Quote Link to comment Share on other sites More sharing options...
ohiobanshee Posted June 21, 2009 Report Share Posted June 21, 2009 I bought a used set of Jims 4mil 12 port mx ported cylinders off ebay. They were cheap needed bored,I figured for what I had in them I would try them. These are the first ported cylinders I have had or even ridden at the time.All I can say is WOW,I was surprised at how hard it pulled all through the rpm range. Quote Link to comment Share on other sites More sharing options...
Boo_69 Posted June 21, 2009 Report Share Posted June 21, 2009 I've heard both good and bad about him. Here's what most of these guys are going to tell you... call around and see who your most comfortable with. I would call Brandon at wildcard (number in my sig.) Kevin at Herr jugs and Jeff at FAST. See who you like all 3 of them are great guys, do awsome work and will help you with anything. I just personally prefer Brandon for my work I think he's looking for info on Passions 12 port porting.. Not who should do his porting. The 12 port design is supposed to further smooth out the power curve. Quote Link to comment Share on other sites More sharing options...
wesw Posted June 21, 2009 Report Share Posted June 21, 2009 my suggestion would be to call jim up and ask about a 4mm trail setup. just tell him word for word what you ride where you want power, blah blah. then talk pipes, carbs, size of domes, etc. he made me an 80hp duner that i could still trail ride with. was beyond pleased. asked for stock low end and then a broad mid and killer top end. but not a drag port. here are some pic of my old jug. i thought the port work looked almost a machine did it really smooth. i would call him at 918-232-3950. he might be hard to reach but leave a voicemail and try couple times a day he does work another job. just talk to him. if you put it together and need some jetting advice get back with me. Quote Link to comment Share on other sites More sharing options...
robert0762 Posted June 22, 2009 Author Report Share Posted June 22, 2009 wesw Do you have a pic of the outside of the jugg where they say it has to be welded up Quote Link to comment Share on other sites More sharing options...
wesw Posted June 22, 2009 Report Share Posted June 22, 2009 no sold them couple years back. he does have to reweld the hole he makes but it looks well after he does it. nothing to worry about. Quote Link to comment Share on other sites More sharing options...
fastrthnu Posted June 22, 2009 Report Share Posted June 22, 2009 I can get you that pic in a few days. I have to take one off to rehone since my douche bag machiine work guy didnt clearance my powervalve and fuct my rings and piston up. maybe tomorrow or tuesday. Quote Link to comment Share on other sites More sharing options...
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