| Author | Message | ||
     Ezblast |
OK - I've been going over everything and if your going to open the case to mill for larger juggs, then machining to accept different bearings could be done as well. Are there other considerations/modifications needed to have an XB12 crank fit into the Blast case? Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Sarodude |
EZ- I think the issue we should be chasing is whether or not there's a benefit to using an XB 3 13/16" crank vs an XL 3 13/16" crank. If there's no benefit to the XB crank, you might be able to save sum bux. I'm sure XL cranks can be had for cheap. -Saro | ||
| Ezblast |
OK - so what would be the pro's and cons - the machining for different bearings is no biggy - but is the design of the XB crank superior to the XL cranks? Curiosity killed the cat! - EZ brought em back! Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Ralphthe3rd |
edited by ralphthe3rd on December 11, 2003 | ||
| Ezblast |
LOL - but wouldn't a squared engine be prone to less vibration, and able to handle the rpms better? Thats the theory several engine builders are pushing - wouldn't that also apply to the Blast? A dog with a bone - lol Got Thump?! Just Blasting on the Dark side! EZ | ||
| Ralphthe3rd |
edited by ralphthe3rd on December 11, 2003 | ||
| Rex |
Love my Honda GB 500...REX | ||
| Ezblast |
Wasn't the Idea of a square stroked engine - even a single the idea of less vibration overall - and if the crank were lightened a bit would that not also assist in keeping vibration lower - what about those guys who use quick silver for crank balancing or other methods used by HD motor builders - any of them work? Always questions - lol Got Thump?! Just Blasting on the Dark side! EZ  | ||
| Fssnoc2501 |
OK Ralph!! I see that you are back and misquoting fine people once again. The reason Brian isn't building the 44 ci motor is no one has stepped up to the plate and said they would pay the extra REQUIRED to build the crank. NOT because it won't work. The motor WILL work sorry to tell the king of his short sightedness but Brian and I are already talking about the possibility of a 720cc Bonneville Blast. The XL crank will work fine bye the way. Nice to see that you still have the ability to crank me off some things never change. Ray | ||
| Ezblast |
So an XL will work - thanks Ray! - are there any prefered methods of reducing/balancing out vibration that is caused with the increased stroke, or am I correct in going with the recent trend of motor experts specializing in square assemblies because of lessoning of vibrational forces overall. Looking for insight to know what things I would need to assemble for the assembly. Justa dawging that bone! Got Thump?! Just Blasting on the Dark side! EZ | ||
| Wyckedflesh |
A single vibrates because there isn't anything to counter the vibration. The bigger the single the more it vibrates. I would theorize the liquid vibration damper would probably help alot. The sound of singles series run in the UK back in the late 80's early 90's use to have bikes as big as 800cc singles that vibrated so bad they had to use a "fuel seperator" type of gadget to get the foaminess out of the oil or the bikes would loose too much oilpressure. They made gobs of torque and upwards of 70hp in 225-250 lbs chassis. | ||
| Sarodude |
The curious thing to me would be how much rebalancing would need to happen to operate nicely with a single. Any balancing gurus (or wannabes) care to shed some light? This is where I suspect the Nallin crank comes into the picture. I seriously doubt that folks with a decent name would just plop an OEM crank in a box, throw a sticker on it with their own logo, and ship it to us as as their invention or sell a specialized part when an OEM part would do the trick just as well. Surely the 44 Magnum cranks are somewhat optimized for thumpage. -Saro | ||
| Ezblast |
So what if the crank was balanced against the rest of the reciprocating mass - wouldn't that help quell vibration also? I was reading in American Iron (and a few other publications on the same thing) about the quick silver method - very slick. Turning a bone into a toothpic - lol Got Thump?! Just Blasting on the Dark side! EZ | ||
| Ezblast |
Any body try this with their motor - would it help a single? - lol http://www.balancemasters.com/ I've read some good reviews of their stuff - dawgs and bones - lol Got Thump?! Just Blasting on the Dark side! EZ | ||
| Wyckedflesh |
I would theorize the liquid vibration damper would probably help alot.  | ||
| Fssnoc2501 |
Saro, You are correct it would be inappropriate to assume that a stock XL crank would be a staight bolt in as one rod would have to be removed and that process takes one big press to accomplish. The bright side to this is that at the same time the crank can have some unsightly weight removed and be rebalanced. Ralph, Thank you for the "kind" words in you recent emails it's so nice to see that you care. As for the lack of appreciation for my efforts on the salt, I did that for me and family not for "world" aclaim, but I did receive much appreciated comments from many here and my sponsors were very happy with the effort. The bottom line is I got the trophies and the records in the book so deal with it. As for piston speed with the longer stroke you are quite correct, the farther the piston must move the faster it will have to move at a given rpm. The process of engine building is a balancing act of all the factors not any one single factors. The rev limit most likely on the the stroked motor would have to be lower but the cylinder fill would improve thus more power. As for me being an authority, no I'm not but I feel that I have had many successes and feel it appropriate to share those. I also study situations looking at all the possibilities to find where I want to go. I also associate myself with people who can answer those question that I cannot find through my studies. Finally, is stroking the Blast worth it. A good philosophic question. What do you want the motor to do? Do you want to spend the money? There are a pile of question that each of us must ask ourselves before delving into a project. I believe that the answer is if you want to do, do it. If you don't, don't. But it does lead to good conversation. Ray | ||
| Ezblast |
So if I stroke her - would I be able to keep my RPMs at 7100 max ? yea I figured all that stuff mentioned Ray - as the carb before was the most expensive part, now the crank would be the most expensive part of the upgrade list - lol. I keep plugging at this because by the time I get ole Vader all set up I'll probably have an XB, be using Maul for commuting, and I was going to aim Vader at a lot of track days, and would like to keep them guessing by upping the power level, on that note would it still be possible to keep the stock pushrod cover cover (I like it!)with the 600cc kit? Ray - you rascal! - I knew you weren't done with the salt! How sweet! Looking foward to the excitement! You should get yourself another Blast for those times when your sweet ride is in surgical mode - I'm sure you could do up quite a nice dailly driver as well - lol I figure I can trim maybe 20 more pounds on the bike altogether - putting her in the 300+/-lbs. area - very lite, works suspension and banke wave discs/ferado pads and 720cc would make for great fun on track days - be cheaper than an XB (thus saving my future XB from track day oops's)and definately be different! Thanks Ray! That information has filled in the holes in the info I needed. Got Thump?! Just Blasting on the Dark side! EZ  |
