Supercharged vintage race class?

I've come across two reports that mention super charged Nortons being
allowed in some long established vintage race type-class.
Both reports were in articles on blown Commandos engines. First owner made
the arrangements with rule board to allow it against the newer 4 inlines.
If so what would that be please?

hobot

I sure don't think that anything but normally aspirated bikes are allowed in AHRMA, but you can always read through the rulebook online.

Vintage race rules I've read don't include superchargers, but then again
I don't even know all the vintage race classes out there.
Still there were two serious money effort machines both with goal
to race with others.
I'm not aiming at racing classes myself just a bike to see how it goes.
Snooping around found this little corner sharpie that gives me tingles
to turn like that in the very close and tights. All tire edges when leaned!
Do note the linear character of the adapted positive displacement compressor.
http://thekneeslider.com/archives/2009/ ... 50-racing/

hobot

AHRMA permits superchargers of all sorts, including turbos, in the Sound of Thunder class, but only on single cylinder machines. That's the only class they are allowed in, although they will let all sorts of things run around the track under the non-competition Exhibition rules.

Ken

Ok thanks again Ken for setting me straight.
I had pow wow yesterday with some young hot shots buying tires with Dunlop
slicks to put on their 500cc 2 smoke to cook below track about 3-4 hr away.
They have their own events but various clubs hold their events there
regularly. Cars and bikes. When they got excited naming hotter craft
I asked about top speeds attained. They all named the same driver
who could hit 95. Shoot past Peel could pull that in 2nd @ ~7700.
of course with teeth and brain hurting to find out.

http://www.hallettracing.net/
Hallett has over 80 feet of elevation change and is considered Technically Difficult. It has wide, grassy run-off areas and zero concrete or Armco barriers. Hallett is unique in that it can be run in either clockwise or counter-clockwise directions ­ making it two completely different race courses.

One thing I learned this decade learning about bikes that can lean,
is tighter tests are harder to pass.
Another thing I learned, duct tape major joints so parts are
easier to find and place : (

hobot

One place blowers are always welcome, on the table salt.
Here's a teaser to read the long article, which of course leaves me tingling.
Not all supercharged Commando salt riders make it back home.

http://www.saltflats.com/harley_blues.htm Sorry Harley fans---
This is going to sting a little, zip up your leather jacket and hang on to your do-rag. The MPS/PBG 1000cc Class Record at 148.918 MPH has been (and still is) held by a NORTON (gasp!) since 1999.

Hey Hobot, Go easy on the V-twins. I spent a few years with my brother racing at Bonneville, And can say that the blowers don't always do as one might think. The few bikes he piloted were Buells, 1350, 1650 and 2000. The link you provided show 5 of the records he currently holds MPS-PF 1650 @ 205.642, MPS-PF 2000 @ 195.988, MPS-PG @ 180.673, M-PG 1350 @ 167.056 and he also holds a BNI record MPS-PF 1650 @ 213.193. You can see that the 1650 class is faster than the 2000 Don't really know why but I am sure the team owner has is figured out. These bikes would run in both gas class and fuel class, The most fun was seeing it run on Nitro Methane one year and the sound of it was truly awesome. The pipes were only 24" or so long. They were only able to make a few passes on it but one pass was 217.945 mph, While getting it ready for the return run the wind came up and blew us off the salt, A giant salt cloud. They also ran the bike on nitrous oxide often and found the limit to that also when the motor was setup with 14.2 to 1 comp. with nitrous and holed a piston at 170+ mph Tim said he nearly soiled his leathers. Sad to say though in 2008 while in the timed mile and going close to 190 mph they had part give way on the bike, Rear tire locked up solid and he went down. If the bike didn't find him he would have walked away, But the bike rolled over him and tore up his arm really bad. Went through 4 surgeries for a total of more than 12 hours, The copter ride from Wendover to Salt Lake was over $15,000.00 and who knows what all the titanium rods, screws, pins and doctors work came to? And even more sad is that after 6 months of re-hab he had to have it cut open again and have bone from his hip grafted into it and new rod installed. The bone was also crushed and parts of it dissolved before healing. And to think the Bub event is coming up soon, Don't think he will race again but I may be able to talk him into going to watch, Well maybe not. But Norton has had a lot of records at Bonneville over the years and when we were there we saw quite a few guys testing there machines, Maybe someday I will post pictures of the Nortons. Here is a couple pictures of the bikes my brother rode, And I can and will say again, Go easy on the V-Twins they can haul the mail!!!!!! Have a great day, Chuck.

Hortons Norton said:

Maybe someday I will post pictures of the Nortons.

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Someday? What kind of tease are you?!?!

O.K. Dave here ya go, Sorry to the guys that have already seen these pictures. I know you like yellow so I tried to pick some yellow ones, LOL.








There are a lot of others but I think I better cool it with the photo's. Oh by the way Sam has the record on a Norton but the Manning Norton streamliner went 270 something but never made a return run, I'll leave that story for another day, LOL.

hobot said:

... Hallett is unique in that it can be run in either clockwise or counter-clockwise directions ­ making it two completely different race courses. ...

hobot

Click to expand...

Actually it's not at all unique. Quite a few tracks occasionally run opposite to their 'normal' direction. We used to run the Talladega course backwards (clockwise vs counter-clockwise) in WERA vintage racing just to mix things up; Roebling and Jennings also run opposite to their normal directions on occasion. They are all quite different tracks when they do that...

My head swoons on 200 mph Commando streamliners!
Peel should have similar power to shove a straight line dart about that fast.
I don't care about top end as much as i care to reach higher speeds faster
than anything else on the tight tracks.
I just quoted Hellets advertising as no back ground to judge CW or CCW significance.

If Peel project works as expected and I get bored with road track her power could be pumped way up with special fuels, big valves and bigger blower, then beg a place in someones land speed dart. Could come back trash but so what if it gets used up in glee before I turn to dust.

Ken reviewed the fate of the above salt blown Commando.

Sorry to report that the guy who set that record, Joe Smith, died when he crashed the Norton at El Mirage. I think it was in 2000 or 2001. He decided to take a run down the track after the event was over and the course markers had been removed. The assumption was that he got off course and hit a rough spot and crashed. I was at El Mirage that day, and talked to him briefly about his bike. It was an 850 Commando with a turbocharger. He said the engine wasn't much modified from stock. It was a pretty simple setup. He also set a record at El MIrage in A-PBG 1000 at 161.093 mph, that still stands.

Ken

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