| Author | Message | ||
     Robert Douglas Hardesty (Roc) |
I've aquired some aac cylinders, huricane pistons, and Nallin stage three heads. I need a host of seals and o-rings, all but the head gaskets. Oh, and I will almost certainly need someone to pester with stupid questions, this is my most ambitious mechanical project to date. Anyone feel like answering some questions in the next few weeks? My bike is a '97 S1. | ||
| Fidel (Doncasto) |
Roc: Let 'em fly. You will find plenty of people with suggestions and opinions on how you can build up your engine here. I, unfortunately, am not one of them as I have yet to pull down the top end on my '98 S3T. I would very much like to be doing to mine what you are doing to yours. Fidel | ||
| Stephen Heller (Ocbueller) |
O-ring heads and/or blocks. Anyone done it or know if it can be done to the sporty motor? The gentleman running the turboed Buell at the Mid-Atlantic rally blew a head gasket. It's my understanding that it occurs even with a lowered compression ratio. Anybody out there who can elaborate? OCBueller | ||
| John Sachs (Johnsachs) |
Steve, You can o-ring heads and/or cyl.but I think you will run into a mired of problems.The better option would be to skim .004" off the top of each cylinder,and start the cut .250" from the inside diameter of your cyl. bore. Torque the heads at: 16 ft.lbs. 26 ft.lbs. 36 ft.lbs. and finally 42 ft.lbs. The reason the turbo blew the head gasket was either improper torque,or most likely detonation. | ||
| Stephen Heller (Ocbueller) |
John, Thanks for the reply. The .004 would be to get a level surface or are we talking making an actual step in the top of the cylinder? If so how would this tranfer to the gasket? Are the torque specs you suggest higher than factory? I wish I could remember the name of the guy who blew the gasket. He has been pictured in Battle2win and I've seen him at the Myrtle Beach Rally as well. I hope to some day turbo my S1 and have been gathering input. | ||
| John Sachs (Johnsachs) |
Steve, The object is to have a .004"high by .250"wide proud surface/ring on top of your cyl. at the bore. Yes,the torque factors are a little higher than Harleys.These are the factors I worked out for James Gaskets when they introduced their steel base gaskets.They used to be printed on their packs. We also run an aerocharged S-2,that has won some big money on the dyno shootout circuit.I'll post some sheets if I can figure out how to.133h.p.@ 14lbs;167@21lbs.of boost.Never lost a head gasket,occasionally it will lift the front cyl.and weep oil out of the paper base gasket.Aerocharger factory will verify these numbers.This engine has been together for 7,000 trouble free miles. Battle2win did a layout of this bike,and hopefully they will print in the next 1 or 2 issues. | ||
| Sean Pepper (Rocketman) |
They bloody well better ! Rocket in England | ||
| Stephen Heller (Ocbueller) |
Thanks John, I follow now. Methinks I know what Rocket is planning for some winter mods. He just can't stand anyone having more horsepower than his nickelplated beastie. Any thoughts on turbos other than the aerocharger setup? Nothing wrong with it, just looking at all options. I have heard good things about Mitsubishi turbos but am not aware of any complete setups like aerocharger that are all worked out for the Buells. I don't mind some mods to the engine but I'm not much into fabrication of parts to make it work and the turbo is already stretching the budget. | ||
| John Sachs (Johnsachs) |
Steve, Aerocharger has worked out the fabrication end of things.You may want to personalize the installation by changing a few things,but the units, when installed per instructions,and properly tuned in by a dyno operator with turbo experience,are bulletproof.They spool up with no lag whatsoever. Some of the other turbos I've worked with all had lag,unless I hit them with nitrous. I don't know about the Mitsubishi. | ||
| Sean Pepper (Rocketman) |
Rocket is more than happy with the power of his Buell, for now !!  Rocket in England | ||
| Jim Armstrong (Jima4media) |
I was reading an article in a UK Superbike magazine today about a Mitsubishi turbocharger on a Hayabusa that puts out 348HP at 10,000 rpm. 225 footpounds of torque. Yikes! It will smoke the rear tire at 175MPH. I would be dead in a week with a bike like that, after I got 17 speeding tickets and burned through 8 tires. I guess I am better off with my lowly X-1. Jim X-2.5 | ||
| Peter Moltmann (Peter) |
Rocket, Congrats! Only two more to go.......... PPiA | ||
| Sean Pepper (Rocketman) |
Funny thing is Peter, the real advantage the 2 infront have is, 1425cc and HSR45's and a little bit more valve lift. Then of course, there's the small problem of my weight, but hell, at least it stops head shake ! Rocket in England | ||
| Ray Monasmith (Bluebuellfool) |
The following is posted in absolute seriousness. None of the usual BSing in this thread. I'm a complete newb in regards to HD engines, but not in regards to wrenching in general. The Blast roadracing thing has become serious, and the Blast sidecar LSR thing may quite likely happen (why not?), so I've got to get busy with the particulars. A few questions for any patient mentors who feel the urge to accommodate me: 1) Can a Blast cylinder be bored to accept whatever piston would result in +-600cc with the stock stroke? 2) Is there any reason or benefit to running solid lifters on a Blast motor (for higher-RPM purposes)? Is it even possible? 3) Generally, what similarities are there between an XL-type motor and the Blast? What parts are interchangable or adaptable? Sincere thanks in advance, Ray/BBF | ||
| mikej (Mikej) |
Assumptions, not facts follow: Going from slightly under 500cc to 600cc is around 20%, I don't believe you'll have any cylinder wall thickness left. If you want 600cc then you'll probably be lengthening the stroke or getting a new cylinder, or remotely possibly having the current cylinder machined and sleeved by a competant shop familiar and successfull with such work. | ||
| BigHairyRalph (Ralph) |
1. I would count on it. 2. Could be done, but first see if its needed. It's possible, the Blast should be able to rev higher than your X1. 3. Sit down with you parts book and see which numbers match up. Ray, have you noticed people constantly argueing over what the best way to build up their Buell motors? A motor which has been directly in service, as a Buell for better than four years and as the plain Jane Evo Sporty for fourteen(?). There has been a tremendous amount of work done to find what does and doesn't work, based on the knowledge gleened from the fourty odd years before that. I guess what I'm trying to get at is, well, have fun! PS, you forgot head work, it seems like manufacturers take shortcuts that leave a fair bit of power in the heads, granted that you set the rest of the motor up to take advantage of it. PPS, if you really want to know, its simple, rip out your Blast$%^& motor, have Brian do your heads, have the cam welded and reground to his specs, make your own exhaust to take advantage of your better breathing heads, replace the carb to match, design your own adjustable ignition to get the correct advance curve and then spend a few months on the dyno finding out what mistakes you made. Simple, eh? | ||
| BigHairyRalph (Ralph) |
Mike, in a sensible world you would be right. But, while I have not a stone to stand on, I'll bet you dollars to donkys, they made those cylinder walls super thick. Same as the twin cam. "More power? Why it just so happens you can buy the factory big bore kit." | ||
| Ray Monasmith (Bluebuellfool) |
See my post under the Blast section for my visual comparisons of the Blast head & jug with the front head and jug on my X1. Heads very close, but not interchangable without some welding on a TStorm head; jugs same bore, and visually identical. I actually had sent an email to the nice people at Nallin today to see what they would charge for stage 2 headwork. $800 for two heads, so a pretty sensible guess would indicate about $400 for one. Since a front TStorm head is $175, and since I can weld aluminum with the best of them, I'm tempted to try my hand at adopting a TStorm head to the Blast. I also plan on making my own exhaust. I have a SuperTrapp external disc muff I bought for an XR600, so all I need is the header extension. I'm not sure what the maximum header length could/should be, but I'd like to try to get it all the way to the rear of the bike if possible. Ideas, ideas, ideas... BBF | ||
| BigHairyRalph (Ralph) |
BBF, try kamware.com for header/exhaust length/diameter. It's free and fun. If TS head will fit it could save you money in the long run. Already set with the large valves and such. Talk to Brian first. I remember him talking about the Blast heads but didn't pay much attention. | ||
| Ray Monasmith (Bluebuellfool) |
I believe I've got a woody that isn't going to require Viagra to keep going. I just got an email back from someone who advised they have already been working Blast heads, etc... happy happy joy joy BBF | ||
| Stuart Mungomery (Wet4uracing) |
does anyone know the site where a shop grafted two s@s carbies to end up with 113 rwhp | ||
| Stuart Mungomery (Wet4uracing) |
the site i reffered to used a stock m2 before dyno 82 hp after 113 hp ........... very new to these computers please excuse any fopars.6pm in sydney no wonder you are asleep. thanks stu | ||
| mikej (Mikej) |
Stuart, check over in the carb section, I think you're talking about the guys who were at the homecoming. | ||
| Tim Slayter (Tims) |
Hi Ray. That site is www.visi.com/~moperfserv/ The main man's dynoed another twin carb Sporty engine but this one's a big bore. Limited by it's ports maybe but 120BHP ain't too bad. Scroll down near the bottom of the page to find lots of very interesting reading. Say, anyone out there with links to real technical information like this site should let us know. Tim | ||
| Tim Slayter (Tims) |
Oops, that last post should have been for Stuart. Sorry man. | ||
| Cyclown |
ANYONE OUT THERE HAVE INPUT ON INSTALLATION AND OPERATION OF NITROUS OXIDE SYSTEM FOR OUR BELOVED BUELL? DAVE | ||
| Smadd |
Nitrous on a Harley is fairly common. To say the Buell must be very similar in nitrous setup might be an understatement. I'm sure there's many shops that do it or resources you can turn to. Two immediately come to mind: I know Nallin has run a nitrous Buell and Cycle-Rama routinely deals in or installs nitrous for Harley and import customers. Might want to start with either of them. Oh!! Wait.. a third. Cap... don't you have a nitrous Buell? Or is it Aerocharger. Good luck Dave. Steve | ||
| Peter |
To all the turbo owners. I'm starting to consider one semi-seriously. I would really appreciate any advice, comments, input etc on your opinions about them. Reliability (as far as a Buell goes anyway) is the main issue I have, so any tales of woe, please let me know. Thanks in advance. PPiA | ||
| Jasonl |
Peter - talk to Cap. I know he's got two turbo Buell's. He should be able to help you out. | ||
| Rocketman |
Peter : Just Harleys are in the process of installing an Aerocharger onto Garry Forest's S1 drag racer. I belive they've already had it running and I think I'm correct in saying they're looking for 165 RWHP. What info, if any, they'll tell you, I couldn't say, but I'm certain they'll offer some advice if nothing else. Druid in England |
