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Sixteen of the entries were Stohrs (Way to go Lee!); Pit lane gossip suggested the highest investment of any one to be ~$75,000. My (unsponsored) car (19th overall finish) had a max investment over...

Sorting out old paperwork yeaterday and found that the 2006 RunOffs had 36 DSR entries. Seems like SCCA messed with a good thing and now Prototype classes are circling the drain.

Like This? Honda CBR1000. 16" street wheels and designed for 13" slicks. All carbon body. Pull rod suspension. Same uprights as my old DSR. Ultimately never could get it street registered in...

I don't remember his name (Hoover maybe) but a few years back there was a guy from California who had a three cylinder turbocharged Mazda engine (probably from a 600cc Kei car) in his Cheetah DSR....

You should do a quick review of P1/P2 entry lists at the tracks you are interested in. You might find that " Just be competitive in the top 1/3 of the field" will generally put you on the podium....

Without haven't having driven an FV, I am struck with the low-and-flat early argument. As I have frequently quoted, "any suspension will work if you don't let it"!
Love to watch you guys!
M

There is also George Dean somewhere in the pacific NW. Maybe even Moon somewhere in Wisconsin.

An old Ocelot! I always liked them and used to have Dan Olberg as my local machinist. Does it have the Suzuki water buffalo two stroke?
The best way to get pedals to your liking is to make them...

A picture would help. Are you considering adding a clutch lever to the shifter like a lot of FSAE cars?
My old DSR had a cable throttle pedal, a bias adjustable dual brake cylinder and a cable...

After suffering through the whole meeting, it appears that Stohr is also prepared to focus on FA and P1 if their P2 concept is not accepted. I admire their skill and dedication and wish them...

I hate bleeding hydraulics so I always converted to mechanical (Cable) clutch actuation. Never seemed to help when spinning backwards.
M

The starter is connected to the engine by a gear train the reduces the starter speed to that required by the engine. The train has an over run clutch to disengage the starter once the engine is...

Well Izzy, I'll be a little contrarian here but if you have the money, buy the car you want. Just make sure you have the money left over for a pro driving instructor and lots of track time. Good...

How did the two-stroke vs 4-stroke competition go this year?
M

Before you press out the old ball joints, you might want to consider that they could be threaded in (same threads as the retainer).
M

If my memory doesn't fail me; a bit of history on the NosTendo (Rupert). Dick did indeed commission Jay Novak to design the chassis. I believe it was originally intended to accommodate the Rupert...

I see that Dick Colburn finished 5th at this years RunOffs in an Astech. Is this his very old car or something new? If his old car, he should be congratulated on being first in the vintage...

I guess that is what you get from a retired mechanical engineer (we don't need no stinking electrons).
M

Don't forget, you can always put a momentary contact switch in series --- just to make sure the driver who is following you is watching the light! (I learned this from Jerry Hansen).
M

I have no intention of participation in FX but if:
"No car shall be considered for classification until all specificationsof the chassis/tub, aero devices and wings, suspension, brakes, body,...

It would have helped to know which engine you were looking at.
In general, a stock harness will need to be lengthened so it's a good idea to get rid of the lights, horn, etc at the same time. I...

I would like to congratulate long time forum contributor Fred Michael for finishing first in the Vintage Sub Class at this years P2 Runoffs.
Marty

Stan,
I don't even know if he is even still alive. Last time I saw him was close to 30 years ago at Road America when he still had the Ocelot Suzuki DSR. He was then living in south Minneapolis...

Shortly after Dan Olberg purchased the Ocelot name and design rights he was contacted by Lincoln Mercury who were interested at the time of naming their cars after various cats (remember the Bobcat...

Sorry Ted, I never could keep you AMAC guys from San Jose straight.

Morning David,
My wing comment was based on a couple of patman's photos which appear to have the leading edge of the wing in the same plane as the rear tangent of the tires. This is farther forward...

Pretty picture. This kinda reminds me of the chassis that (can't remember his name---the two stroke Kohler engine guy from Wisconsin) uses. He may be a good source for information or parts??
Misc....

Yah, I've heard of that lap and have no reason to doubt it. I've also heard that the motor was temperamental enough that it could only be started or shut down by an engineer and a lap top. ...

The fastest lap at the 1974 Elkhart CanAm race was Jackie Oliver in a DN-4 at 2:02.6ish .
In 1973, Donohue did a 1:57.53 in a Porsche 917/30K.
The fastest DSR lap there was the Tucker turbo 670cc...

This is only my opinion but it looks to me that the new wing is a bit too high and too far forward. It is now located in about the same place that I originally mounted one on my old DSR. For our...

The pictured rods look like what we used to use in our 948 HP Sprite engines. Worked great to over 9000 rpm as long as you were willing to replace rod bearings every two race weekends (ya gotta love...

For my old DSR (Both Honda and Suzuki) I used to use a cable designed to be fitted for the rear brake of a tandem bike. The barrel didn't fit exactly into the throttle shaft quadrant but was solved...

When I used to use the GSXR1000 in my DSR, I could easily carry it around by myself. I'm thinking less than 130#. I can't imagine the 600 being any heavier.
Marty

How many of the entrants / winners had two stroke cycle vs 4 stroke cycle Power?
Congratulations Jack!!
Marty

Probably not. Too narrow and too light. Which is a pity since it is at a price point where people might actually buy one to participate with SCCA. Maybe they can get yet another spec line for the...

West system epoxy is available in a variety of cure times. I was able to complete a two layer wet layup on the entire front half of a closed wheel sports racer using the 60 minute epoxy without any...

Depends on how much filler and paint you want to use. I assume you are doing a wet layup so if you want to minimize frayed edge lines try to find harness satin cloth and drape it to fill the mold.
M

Well, since the OP says he already has the mold a new one isn't necessary. Since he is running vintage, carbon and Kevlar are probably not allowed.
When I built the body for my old DSR (much bigger...

I remember being at Brainerd a number of years ago and Dan Olberg had cockpit adjustable jetting for his Suzuki Water Buffalo powered DSR. The long straightaway gave him plenty of time to adjust (if...

As a former DSR guy I was thrilled when this site added SR forums. I have never felt dismissed here and have never witnessed the basis for your negativity.
Best of luck with the new forum.
M

OK, welcome to the crowd.
I have little experience in autocross but have done a few bike engine race cars. Without seeing a few body off pictures, there is not much any of us can say. My only...

Re: Ground Clearance -- My design ( https://www.tapatalk.com/groups/dsrforum/marty-nygard-s-creation-t7223.html ) was based on using FC sized slicks for track days and changing to street radials with...

Hi Nik,
About eight years ago I sold my homebuilt DSR. One day I noticed a box of leftover parts to fabricate uprights, suspension arms, etc. I decided to build a two seat version of the DSR for...

David,
I had a home made DSR that was designed around a CBR900RR. Too finicky and I didn't like having carbs. Switched over to a 2004/2006 GSXR 1000 with no frame mods except a couple of motor...

Try rotating the pickup tube so it is closer to the bottom of the tank. Also, based on the o-ring on the end of the pickup there is likely a slip-on extension that reaches deeper into the cell.
M

The most beautiful hydroplanes were his dad's unlimited hydros. Jon's limited hydros were nice too.

Amazing how these topics tend to converge. Both airplane building and race car differentials bring to mind Jon Staudacher.
His DSRs used a VW open diff without a can--just little alum plates to...

I seem to recall early "Modified" sports racers with aluminum tubing chassis. Porsche also used aluminum roll cages in their IMSA turbo 911 variants but I think that stopped after Cathy Rude's...

Try this thread in the SportsRacer forum for a lot of ideas and opinions plus even a separate link to a Miata sports racer thread.
http://dsrforum.yuku.com/topic/11332/Car-for-P3?page=1

Interesting Stan, mainly because they don't homologate cars these days.
I love subterfuge!
M