PassionRE

They make it but the .010,.030,.050 and .070 sizes are harder to come by than the half mm increments at times depending on production runs from Wiseco...Jim

Reliable and 75 hp in the same sentence has +4 stroker written all over it....Jim

You need porting if you want REAL power. 50cc increase in displacement on stock port timing will give minimal results. Better yet, stroke it and port it ,and youll have an absolute monster on your hands...Jim

Canada is no problem...just more paper work...Jim

Canada is no problem in shipping..just more paper work...Jim

That purple cylinder thing started off for recognition at race tracks."Man, look at those purple motors run" kinda thing. Nobody really cares for the color though.But it does stand out for sure, which was my goal. As for the 12 ports, I feel they work just fine. Ive had non drag motor strokers dyno out at 80 horses R.W.H.P. and 45 ft. lbs of torque. The absolute best testimonial Ive had though came from Jinx44, his bike is featured in my photos as Richard S. in Missouri. Wish I had it for my testimonial page but I deleted if by mistake....quite a story....Jim

http://www.passionracingengines.com/

Porting prices are for the pair of cyls. SDD, Sheerer calls it chrome but its not a deep lusterous chrome, that price includes silencers...Jim

Finally got it up and going guys. I have alot of work to do on it, but at least its up. Any Passion owners that want their bikes profile pics on the website, send em to me a [email protected]. I'm particularly looking for action shots and hot chics on Banshees as well to add to the site...Jim

Long term best choice for flexibility and options....NOSS pure and simple...Jim

Just call David Noss, Im sure he can make em and ship em before the weekend...Jim

Soooo... it sounds like there is no real answer. lol. That's why builder like Jim at Passion are out there. Oh there are answers to that question, probably a dozen different ones depending on who you ask. Actually, the type of stroke compensation of the stroker is just a portion of whats considered in a good running stroker motor. Its much more complex than just that...Jim

Max. port height spec will vary depending on how your stroker is set-up. Max spec will be different on a base plate motor vs. a revised stroker dome set-up....Jim

Your ex. port height is not too tall, but you need to lose the stock pipes or it will probably be a really narrow,peaky powerband..As for you fuel, not much info was included on your head situation so I really cant comment there. 8's should be fine if everything else checks out good....Jim

By the way Mrmann, thad bid I gave you on your cases wasn't just case matching. It was a total fillet weld and resculpture job of updraft ramps as well...didnt really know if you understood that...Jim

Non drag port or case mod versions will produce a very broad power band with great bottom end and mid 70's Also, this would be considered a very reliable engine, not a radical version...Jim

A complete stroker package including 12 port porting and bore, +4 crank,seal kit, pistons,plate, Noss head, 34mm intake,v-force reeds,34mm Keihins,cable, intake boots and Barnett clutch will set you back around $2340.00, definately a chunk of cash but considered a bargain in the world of horsepower...Jim

Ultimately, my 12 port strokers benefit tremendously from the use of larger carbs in general. Many of these engines are sporting 34,35,and 36mm carbs and maintain great bottom end and throttle response. I also understand that many owners cant for whatever reason, mount the larger carbs on these engines initially. I have found that the use of the larger carbs minimizes mid-range jetting problems. Jetting 101......pilot jet selection should be based on cold idle characteristics almost exclusivly. A engine that idles with the choke off immediately when cold is rich on the pilot and a engine that will idle with the choke on after warm is lean...pure and simple. The engine should idle on its own with stock carbs after approx 45 seconds of warm up and is generally close enough for jetting puropuses on bottom end if it will do so. Anything after 1/3 throttle doesn't use the pilot jet at all. Main jet selection...no other part of the jetting process is more important. As a rule, for reliability purpouses, your engine should be jetted as rich as possible and still maintain crisp all out runs on a hot engine.I have also found that if you jet the main like this that mid-range transitional jetting becomes easier on ported engines, not to mention a engine that will flow as much air as my 12 port strokers. I also understand that extra HP can be obtained with leaner main jet selection but its the risk that many of you are not willing to take, including myself except for closely monitored race day only applications. In NO circumstance should mid range jetting be adjusted with main jets unless you are willing to take the above mentioned risk. Final main jet selection should be obtained with proper plug chops, adjusted to the point of YOUR comfort level, and mid-range jetting adjusted from that point with the main jet as a constant. Reded, warm your engine up, plug chop the main to your comfort level and then run the bike at approx 45 mph in 6th(depending on gearing, approx 4500 rpm cruising speed), twist the throttle wide open. If it bogs out lift the choke momentarely at WOT and see if it gains power or loses it. If it gains, you need a thinner needle if youve already adjusted it to its richest setting.If it loses power, your rich and need a thicker less agressive tapered needle. I would love to be able to give dead on jetting specs on all my engines, it would make my life much easier. But with all the variables, and they are infinate, this is just not the case although I do get luckier with the larger carbs....Jim

Fuzzy, I was wanting final bore size to be at 64.5mm when I get done with them . If they will clean up at 64.5....they will work for me....PM me once you find out where they are at and shoot me a price....Jim

Anyone have a left hand unported cylinder that will at least clean up at 64.5mm? Would consider a pair if the price is fair.... thanks Jim

I dont know if its pure HCI, but it will knock you on your ass if you get a wiff of it thats for sure. I use it to remove aluminum from cylinder bores....Jim

Fatty's flat out rock on that engine along with CPI, PC, PT-mids,t-5's etc etc...I think you have a set of old school FMF's there Rick...Jim

$1.77 in Tulsa right now for regular unleaded which is cheap compared to what some of you guys are paying...but it still BITES....Jim

Pics of the bikes is fine, but a pic of you with your bike is even better.....Jim

Hopefully within about 3 weeks