| Author | Message | ||
     186bigtwin |
Anyone have any pics of an XRTT fairing mounted on a tuber? Thinking of a race project............... (Message edited by 186bigtwin on April 03, 2009) | ||
| Firstbuell |
I love to hear that - it's a beauty, eh? Dean Wixom's spiritual & technical predecessor of Erik's XBRR/1125r race fairings   these fotos display 2 different versions - look at the lateral bracing on the fuller coverage, later model in B&W I believe the color foto is 1 of the very 1st versions, mounted with rider-specific tanks & seats ol' Dick didn't mess around back when H-D was a legitimate AMA contender | ||
| Hurricaneleah |
Hey Stephen, I'm in process of putting one on a tube frame replica of Lucifer's Hammer. It takes quite a bit of trimming, thats for sure. will try and load some pics for you tonight. Also, you might want to do a search on Buell Brothers bonneville bike and see if you can find some images. They are running an S3 with the XRTT bodywork. What is your race project? I like the sounds of it already! | ||
| Hurricaneleah |
Cool pics Curt, As you surmised, those pics are of two different models. The black and white pic is the 1972 disc brake XRTT fairing (has the dash cut out a little more for the early huge brake master cylinder. Those were Honda brake discs too... The color picture is actually of the 1968-1969 flathead KRTT fairing which is often mis-identified as an alloy XR fairing, although it was also used on the 1970 and 1971 iron XRTT. Can't tell from the pic if it is a flathead or an iron XR (i suspect an iron XR). It is quite a bit slimmer than an alloy XRTT fairing, but obviously did the job...I believe they qualified for Daytona in 1968 at over 140mph on an engine making maybe 60hp at the wheel (and that may be optimistic). Thats when qualifying was a flying lap of the NASCAR speedway (no infield or chicane). | ||
| Firstbuell |
leah, thanx for the details I was at Laguna Seca when Cal won the AMA feature race, booming & drifting that 'silk-purse-from-a-sow's-ear" Harley up & down the hills surrounding the lakebed..... magic, baby !! US mag articles detailing the Daytona f-glass development & testing way back then read like sheer poetry to this aeronautical engineering student please tell more about your Lucifer's homage | ||
| Hurricaneleah |
Awesome Curt! that must have been incredible seeing cal rayborn in person, he is definitely a hero of mine. Somewhat long story on the 'hammer replica...I race both Vintage bikes and modern battle of the twins stuff with AHRMA, and have an original factory twin carb Buell X1 that has been neglected in the corner for too long. A few years ago i got a chance to ride one of hourglass racing's XR750TT's....possible the greatest day of my life! loved that thing and always like the look of it...anyways, since owning an XR750TT is just a pipe dream, I had the idea to do a Lucifer's hammer II replica (more like homage) of the Buell Gene Church rode. It used a heavily modified XR750TT fairing and has the look i like. I figured both the vintage and the battle of the twins crowd would dig it. It won't be an exact replica by any means, but it should be pretty fun to run in the BOT classes. I'll shoot some pics of it tonight. Here are a few shots of the Honda RC450 I race with the KRTT fairing and tail, as well as the XR750TT i got to ride that started this whole mess...   | ||
| 186bigtwin |
How do you post pics on this site? I found some of the last try Lucifers Hammer II bike (Buell) from 1991, full XRTT fairing... (Message edited by 186bigtwin on April 03, 2009) | ||
| Firstbuell |
RC450? CR450? no matter, if it's ex-Team Hansen - wow!! where it all began -  (Message edited by firstbuell on April 03, 2009) | ||
| Buellistic |
BUELLers: For those that did not know, Cal Rayborn's FAIRING was off set ... | ||
| Firstbuell |
tell us more about that offset, please..... | ||
| Buellistic |
Firstbuell: Tried to find that info in my why archives, but could not ... It had to do with how he rode, well he not only sat and rode differently the frame was built for his style ... (Message edited by buellistic on April 03, 2009) | ||
| Buellistic |
BUELLers: "i" found INFO on Cal Rayborn's FAIRING ... The ENTIRE FAIRING was offset one(1) inch to the LEFT, the better to ensure adequate AIR FLOW to the "AIR BOX" ... Seems like only ROAD RACER's and BUELL Riders know about "AIR BOX'es" !!! | ||
| 186bigtwin |
Hurricane, thinking of squeezing a 106.9" (4.125 X 4.00) with STD XR style dual carb heads in to a X-1 frame, then wrap it in a XRTT fairing with airtech GP tailpiece for AHRMA Formula 1. There's a 1600cc Vincent I'd like to take on.................. | ||
| Hurricaneleah |
Sweet! sounds like a cool project. I saw the vincent at Daytona last year. That is a trick bike for sure! Hope to see you out there. | ||
| Tom_b |
Don't know about XRTT fairing, but here is a link to some pretty cool aftermarket fairings http://www.airtech-streamlining.com/vintage/vintag efairings.htm here is another source http://www.classic-motorcycle-fiberglass.com/ | ||
| Moxnix |
The air box was on the iron Head waffle iron, first twin carb set-up, wasn't it? The later aluminum XR series didn't use them. Trying to keep the iron XR competitive with the 2-strokes as stop gap until the alloy engine was ready, and even then, it proved to be most effective in dirt track. I used to buy XR fairings from a guy named Schaefer in PA, whose family made fiberglass church steeples. He did a tank especially for my XLRTT with the 3/4" raised back bone, and indentations on the bottom for the Iron Head top. Nice stuff, and the gas caps came from a guy in Jersey, either a Jeep or International truck cap with a big hole for quick refueling, same as Harley OEM for KR, XR, etc. I have photos somewhere of the XRTT frame stamped 25 (Rayborn) on the steering head at Whidbey Island years back. #25 engine to match was in Spokane, went to a chassis in Seattle and then California. This is all a long time ago, mind . . . and I never saw the Rayborn TT bike that went to auction. The STD XR style heads draw on the left, puff out on the right, which works well, if not exactly alloy XR looking for the purist. There's a flat track engine on an early evo bottom with some one-off XR mods, including the STD XR heads that dyno'ed at 116 hp somewhere in Idaho. Might make a nice road race bike engine with some fiddling, but limited to 4 speeds. (Message edited by moxnix on April 05, 2009) | ||
| Hurricaneleah |
Thats some good stuff moxnix. Would love to see a picture of your XLRTT if you have any. did you road race it? Here are some shots of the Lucifer hammer project. The fairing will need to be trimmed quite a bit more to work (windscreen, clip on clearance, fork clearance), and i think i am going to have to make a 1 piece bellypan as well. I have a bunch of pics from Dave Gess web site of the original hammer buell, and it is interesting as everywhere i have clearance issues, i notice the fairing is cut away on the original as well! I'm still undecided if i am going to use the hayabusa fender in the picture, and i willbe running the correct KRTT seat/tail (buell gp tail shown) as well. Hoping we will have it together for mid ohio vintage days...     | ||
| 186bigtwin |
Hurricane, That looks absolutely FANTASTIC !!!!!!!!!!! Front fender included.....Steve | ||
| 186bigtwin |
What tail section is that? | ||
| Moxnix |
That's decent. I have to dig up old snapshots lost in my "archives," meaning the home office mess, and scan them. Am certain I have the chassis photos, as well as photos of #25 stuff. No, was not a road racer at that stage of the game, but had a younger, shorter chap from Montana as a jockey. I'm in the "too tall" and now "too old" club for anything but sprint racing. There's an LH 1 clone in Germany with high price tag. A gray porridge bitsa of re-popped parts compared to your work. | ||
| 186bigtwin |
Hurricane: your hammer project, what engine configuration, for what class? very interested...........steve | ||
| Hurricaneleah |
Hey Steve, The tail section is the airtech buell gp part for an S1. The engine currently in it is the original 3.6" stroke 1350cc pro thunder motor, makes about 133hp at the wheel. I'm a little nervous about running it as the 3.6" parts are hard to come by, plus it would be legal for Formula 1 and Sound of thunder and it would be tough competing against the liquid cooled stuff. I have a 3.125" stroke crank so i think i will put together a 1170cc engine for Formula 2. | ||
| 186bigtwin |
Leah:, with the shorter stroke, what length rods will you use to avoid having to notch the pistons half way up the skirt? Also @ 3.125 will you rev past 8000?and what type valve train?? | ||
| Hurricaneleah |
The 3.125 combination uses XB9 rods and wiseco pistons which are a slipper skirt design, so no notching required. The same combination is fairly popular in the XB world as well. That is about as short stroke as you can go with a pressed pin crank. Probably limit engine speed to 8200. We ran this combination in land speed engine at stock bore size to 9000 rpm. Valvetrain is titanium valves (from CV products)and composite pushrods. | ||
| Buellistic |
Are the XB9 rods 9.375 inches long ??? | ||
| 46champ |
Who builds a XRTT fairing besides airtech i'm interested in one for my Bonneville bike or is it better to use one of their LSR fairings? | ||
| Jeffb |
Here's my X1 Bonneville bike with a XRTT fairing. I have more pictures I can Email if you want. I used a S3 fairing mount and modified it by adding fastener mounts. Jeff  | ||
| Hurricaneleah |
Awesome Bike Jeff, how fast? Steve, XB9 style rod is 7.270" center to center | ||
| 186bigtwin |
Leah, thanks for all the info, this won't be the last time I bug you. 8200rpm + those rocker arms are DANCIN !!!!!!!!!!!!! | ||
| Jeffb |
173 on gas at Bonneville. Last year I tried nitrous at Maxton and cooked the engine. It went through the traps at 175, but it was slowing down. I am going to try it again with a better tune up this June. Jeff |
