| Author | Message | ||
     Bill00 |
I thought I'd bring this back from the grave. I've had my Blast for a while now and I was thinking about selling it and getting another bike, but for some reason I want keep it and hop it up. Maybe chop the back off like the Crossroads Blast and install a big bore kit. So I was wondering if there's any news on the 44 Mag. kit? It seems it would cost more than a used Blast though. | ||
| Ezblast |
I talked with Brian Nallin about a couple of weeks ago about this kit and he said there was not enough demand to have a shelf version - ready to ship, however, if you do want it call them and they will whip one up for you - of course there then be a waiting period for certain parts to be fabricated but then all good things in time - eh? The fact that he is willing for this to still be available says alot about Nallin's willingness to put customer service up front! So if you got the pennies and really feel like embarressing the twins - this is the option for you! Add the 6 speed they would be willing to also do for you and you have a top of the line bike that will not have to take a back seat to anything - ahhhh these are great times to be Blasting! Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Bill00 |
Wow, thats cool of them. Thanks EZ  | ||
| Halfaharley |
I am considering this type} of upgrade for this winter. I know what is required in engine modifications, but how durable would boring to 720cc make the engine? I still want to have a street-able bike that I can run for a few hours on end if I wanted to. My uncle has an old 500 BSA with the cases bored so thin, it overheats after a 1/2 hour on the road. The thin cases cant take the heat expansion. It was built to be a race bike, which it served it purpose well. A couple laps around the track, cool down and wait for the next race, a couple more laps... it did quite well there. I still want a (fairly) reliable bike, so the question is: AM I MAN ENOUGH TO HANDLE A 44 MAGNUM? --Nik | ||
| Ezblast |
Its a 600cc bore with a stroked crank - making it a 720cc/44CI engine (a square engine). Today you could get the same thing by modifying a XB12 crank or the Blast crank with XB12 parts - some clearancing would be nescessary - probably, but add one full 600cc Nallin kit and your done - with nothing as drastic as you describe happening. Have fun though - it would be nice to hear of more than one person running this set up! Best of luck! Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Halfaharley |
I guess I should have realized that. Thanks. What is the deal with a "square" engine? Does the fact that the bore measurement is equal to the stroke make it more efficient or something? I have heard that some car manufacturers have done this, but I never understood why. --Nik | ||
| Djrandombeatz |
what would the approx. cost be of the full upgrade from a completly stock engine? Thanks! Chris | ||
| Jprovo |
Square engines are theoretically the most thermally efficient engines for a fixed displacement because the heat transfer surfaces are the smallest possible compared to over and undersquare engines. Notice I did not say mechaincally efficient. James | ||
| Ezblast |
DJ - I figure the cost of a 600cc kit plus either a modified XB/Blast crank will put you back about $3,500.00 - pricey fun! Another 2 grand will get that 6 speed as well - labor for all that would depend on if it is you or someone else and the rates. Its the crank and the work that would have to be done to it that has me adding $1,500.00 to the first price - you might be able to get it cheaper, but the bet would really be to add 500 to that price. No one ever said that modifications where either cost efficient or easy - lol Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Djrandombeatz |
ya, but either way it sure sounds to be one screamin bandit of a blast. By the way, dont know if youve been checking out yahoo, but not very many posts there these days. Oh well, this sites still kickin, lol. Maybe one day when ive got 5 grand to burn ill turn the ol blast into a full blown custom, one day! Chris | ||
| Shotgun |
Check out Loraine's updated website at bcrider.com That beautiful 44 Magnum Blast is featured in her Blasts for Sale section. | ||
| Buelldyno_guy |
I haven't posed here for a while, been busy with my new ULY, so here's an up date on the H-D Buell of Vallejo 644cc Bonneville Blast. Brian has finished new head and cams and it's on it's way to the dyno room at Revolution Performance. To meet the class limit it has a 3.6 bore X 3.8 stroke. The frame is all finished and I am looking for some type of alloy swing arm any ideas anyone? Brian is also working on a big bore barrel and piston it will have a 3 7/8 bore for about a 730 cc displacement. ... Terry | ||
| Ezblast |
Cool! Thats great news about your land-speed record Blast! So Revolution Performance is stepping up to the plate? - Totally cool! Brian has always been brilliant in his tooling/tuning - you'll be there also I suspect? How about a CF swingarm? Finally the 44 Mag walks into existence and no stroking required?! - Wow! Thats a ton of good news for Blastards everywhere! God! - knock on wood its a long time in happening - but at my next rebuild on either bike would definately have to include the 730cc big bore kit! Definately! Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Jprovo |
Terry- Good news, keep us posted with what's going on! It sounds exciting. With the swingarm, I think that you're going to be stuck making your own  It shouldn't be too difficult though. EZ, the 730 would be with a 3 13/16 (Sportster, XB 12) Stroke | ||
| Ezblast |
Cool! Still way doable! GT - JBOTDS! EZ | ||
| Ezblast |
So would it be a rod change or a whole crank change out - for the stroke? GT - JBOTDS! EZ | ||
| Halfaharley |
The only thing that determines the stroke at all is the crankshaft. You would only want to change the rod to change the rod angularity or if you needed clearance somewhere. The rod length just tells you how high up the piston does it's stroke. It could be ten feet long and the stroke would be the same. --Nik | ||
| Ezblast |
Now thats not entirely true - the kits for VW Bugs - I bought an Okrasa 2110cc kit when I was a kid - part of that stroking was just longer rods - GT - JBOTDS! EZ | ||
| Jprovo |
EZ - It's true - the rod length does not affect stroke on Buells, and most engines for that matter. There are a few exceptions, but for the most part they are odd configurations.... A Blast Stroker kit would require a new crank and rod to maintain the same deck height as the current engine and let it fit into the frame. The common way to make a stroker Blast is to put a Sportster crank in it with the knife rod replaced by a bushing. James | ||
| Ezblast |
OK -so I gather we would have to exchange cranks or the price would be outright with a new crank? What crank would it come from - an XB, custom, modified Blast? And this means our rpm would be limited to 7100rpm max? - so many questions and no answers - lol GT - JBOTDS! EZ | ||
| Jprovo |
Probably a new aftermarket Sportster crank, modified for one rod. You could machine the stock flywheel, install a new rod into the crank assembly... I dunno if the new crankpin hole and the old crankpin hole will overlap, the crankpin center line moves 11/32". If they do, I don't know if you'd be able to use the sock flywheel. | ||
| Ezblast |
LOL - Okrasa is no longer, but my buddy Paul Pauter is kicking but in the VW air cooled racing business - check those numbers - http://www.pauter.com/ - I wish he'd make HD/Buell kits - the power out of those VW engines of his are awesome! I wish someone could answer a few questions about this 730cc kit - the potential sounds awesome - though Erik did mention that you could probably bore it out to 750cc's if you offset the cylinder forward- but he didn't mention details on how - just that it could be done. Sigh - where are the experts when you want them? - lol GT - JBOTDS! EZ (Message edited by ezblast on December 13, 2005) | ||
| Buelldyno_guy |
I think I have posted this before but it reflects Brian and John Hobans work the first time. It has been lightend even in the new motor. It started life as a brand new1200 M2 crank. I will share all we did when it's done... Terry  (Message edited by buelldyno_guy on December 13, 2005) | ||
| Jprovo |
Beautiful work. It looks like you used the knife rod instead of the fork rod... I'm be intrested to hear what was done. Nice. James | ||
| Ezblast |
Concur! | ||
| Revperf |
We used the knife rod and then machined and welded spacers in place to take the place of the fork. Engine dyno cradle is almost done Terry. Should pull it by the end of the week. We'll shoot pictures for you. B | ||
| Naustin |
COOL!  | ||
| Jprovo |
Brian - Thanks for the update, I'm looking forward to seeing what you guys can do with the little beastie! | ||
| Blake |
Hey Brian! Careful! You just upped your post count by 50%! Don't want folks to think you are trying to highjack the place.  The more the better!  | ||
| Revperf |
 Very funny. |
