If your track has holes, ruts, jumps ect. maybe your lucky to be running a chain, the weakest link breaks. I'd also think maybe you need to find a better track to run on. You state yourself that driveline and engine failures should be expected being the state of the track you run on, so how does that make a chain drive racecar a gokart ? Hmmmm Just in the past week I've been informed I'm not a real race fan, and now I find out I dont even own a racecar, lol. I wonder how the guys that spent close to 20 grand on a Henchcraft feel knowing that they paid for a racecar but got a gokart.

[DAD]

Originally Posted by Cadpro18 How familiar are you with the WIMS group? Or, how do you define “doing fine”? Before the ½ way point in the season they had 10 engine failures. So as to not bore everyone with the details of my maintenance program, set up, or the quality of the equipment, I'll just say that none of those is the problem. In fact, I've never had any problems with the chain. But, as a result of repeatedly getting airborne, I have had all the teeth ripped off a brand new sprocket by a DRZ2 chain w/rivet link, that was immaculately cleaned, lubricated, and properly adjusted. I couldn’t agree more that the problem was how I was using it… I shouldn’t have been hitting the double jump on the exit of 4. I don't question those that say the current engine/driveline package is working fine for their tracks and conditions. On my home track with typical conditions, i.e., holes, ruts, jumps, etc, I expect engine and driveline failures to be common... and they are. Chain & sprockets = go-kart, quick change= race car

All dirt track do the woopty doo's things ever once in a while, some more than others. These things are not designed to do motor cross, If I wasn't so darned dumb and had access to "cad pro", I would plot my pick up points and see what movement the rear axle does under bounce and rebound, and design accordingly. The best way to keep the chain on is the old wishbone a la Henchcraft with the front pivot being at the front center of the front sprocket . However This is not the best point for turning the car and traction out of the turns, so we compromise.

I would look at maybe the Honda odyssey deal with independent suspension and lots of travel, and or go out and hire somebody that knows how to "farm" a dirt track.

Some dirt track operators really do take pride in a well maintained track, but that is one heck of a lot work, and I guess some of them want a life away from the track.

Dirt tracks are better for the drivers, Paved tracks or better for the promoter.

I would rather be racing than shooting at bulls.

Honest Dad himself

[STUMPS88]

Regarding the WIMS group on motors... If the team that blew 5 motors this year would leave them stock and not open them up every week they wouldn't blow!...K9 car had probably over 30 races on his motor... For the other motors im not aware of if you keep them stock unopened, oiled properly and cooled properly you wont blow them up!..

I been running with WIMS for 10 years and the majority of these blow ups over the past few years have been poor cooling and oil lines done poor...

I been running 2 motors since 06... 1 now has about 35 plus nights and the other i bought used and busted the trans with about 40 races on it...

01, and 74 Car are going on their 3rd year on their current motors... The 26 car has well over 50 races on it..

These clowns starting this mini sprint Evaluation are telling people the motorcycle motors are hard to find, to expensive and unreliable?..Plus i heard a good one that a guy said the motorcycle motor is uncertain in the future and will stop production?... REALLY?..Sounds like these newer car owners are being sold on a good line of Bull?!

WIMS has built up to 30 cars and a great car count of 20 plus weekly... Why re invent the wheel and pull apart a group that has already established itself?...

I think the best thing for you guys to do is start a new group and leave the WIMS group out of it... Why make this class even more expensive ?

[Cadpro18]

Originally Posted by DAD All dirt track do the woopty doo's things ever once in a while, some more than others. These things are not designed to do motor cross, If I wasn't so darned dumb and had access to "cad pro", I would plot my pick up points and see what movement the rear axle does under bounce and rebound, and design accordingly. The best way to keep the chain on is the old wishbone a la Henchcraft with the front pivot being at the front center of the front sprocket . However This is not the best point for turning the car and traction out of the turns, so we compromise. I would look at maybe the Honda odyssey deal with independent suspension and lots of travel, and or go out and hire somebody that knows how to "farm" a dirt track. Some dirt track operators really do take pride in a well maintained track, but that is one heck of a lot work, and I guess some of them want a life away from the track. Dirt tracks are better for the drivers, Paved tracks or better for the promoter. I would rather be racing than shooting at bulls. Honest Dad himself

Dad, Are you saying that if you had a 6-axis Romer portable CMM, running DezignWorks reverse engineering software inside of SolidWorks, that you would reverse engineer a new Henchcraft, run motion analysis on it, then re-design it? Yeah, I would never do that. And, Bobby Michnowich isn't kicking their asses out in California (when his motor doesn't blow up) with my re-designed Hench either.

Again, I have no chain issues per sa. We have that figured out. The new DLX car handles the rough so well that you can run right through it... and that is a problem... way more tire than a bike... locked down with a wing... running wide open... through holes, etc. The shock loads far exceed the original design parameters of the powertrain.

Whereas the DuraTec motor is designed for a 3000 lb vehicle, not a 400 lb bike...with proven reliability in dessert racing (no failures in 5000 mi).

Honestly, I'm just glad that a few people are open minded enough to develop something like this. Not to mention their willingness to invest their time and money without any guaranty that it can run somewhere.

Me... I'd park the mini sprint and pick something else to race, ride, or drive... maybe motocross

[DAD]

Originally Posted by Cadpro18 Dad, Are you saying that if you had a 6-axis Romer portable CMM, running DezignWorks reverse engineering software inside of SolidWorks, that you would reverse engineer a new Henchcraft, run motion analysis on it, then re-design it? Yeah, I would never do that. And, Bobby Michnowich isn't kicking their asses out in California (when his motor doesn't blow up) with my re-designed Hench either. Again, I have no chain issues per sa. We have that figured out. The new DLX car handles the rough so well that you can run right through it... and that is a problem... way more tire than a bike... locked down with a wing... running wide open... through holes, etc. The shock loads far exceed the original design parameters of the powertrain. Whereas the DuraTec motor is designed for a 3000 lb vehicle, not a 400 lb bike...with proven reliability in dessert racing (no failures in 5000 mi). Honestly, I'm just glad that a few people are open minded enough to develop something like this. Not to mention their willingness to invest their time and money without any guaranty that it can run somewhere. Me... I'd park the mini sprint and pick something else to race, ride, or drive... maybe motocross

Yeh, you got it right "The angle of the dangle is equal to the heat of the meat providing the mass of the arse remains constant"

You ride with the best and you limp like the rest.

I take it you race a DLX chassis. Isn't that a tripple x chassis that has been cut up to allow one to install a motorcycle engine in sideways for chain drive.

Best I can recall the tripple X was a reverse engineered (Knock Off) of Spike chassis. I think they were produced off shore to beat the cost of one of John Godfrey's Spike's. They are good cars. We ran second to one a Tulsa a few years ago. We race a FSC chassis built by AJ Felker.

SOO since you already have a midget chassis all you would need would be a motor plate, motor and drive train and you would be ready to go race Focus knock off ,or you could probably run with some forward thinking minisprint groups. I would love to race with your car and if it was cheaper you can bet I would try to get one also.

Stock motorcycle motors have no problems with reliability. I have raced zx10r motors since 2005. I blew up my 2008 because the thermostat stuck and the shower injectors were shut down with a cleaning plug we forgot and left on. Then like a dumby we installed the original 2005 motor with the same stuck thermostat.

Honest Dad himself

[PatrickMead#13]

My oil cooled gsxr1100 does the job still.... Of course I don't usually turn over 7500 also

Posted via Mobile Device

Originally Posted by Aftermidnight My oil cooled gsxr1100 does the job still.... Of course I don't usually turn over 7500 also Posted via Mobile Device

My GSXR 1200 oil cooled still does the job too. Still holds a couple of track records from before I owned it, turns 10500 rpm no problems whatever. Most people dont know that the gsxr oilcooled engine's are over built big time and are still in demand for nitro drag race bikes. You dont need the latest greatest thing out there to be competitive. If you run a car engine and driveshaft it's a midget. Be prepared to have your gsxr oilcooled engine called a boat anchor, right DAD ?

[DAD]

Amen::
Marvels through modern chemistryNitro make great power in almost anything, even boat anchors! And it don't need a drive-shaft to be a midget, that is just an old wives tale. Back in the 40's and 50's the old 45 cubic inch Harley Davidson's did a pretty good job powering midgets with chain drives (or was that TQ's).

Honest Dad himself

[RickyBobby]

I just don't like how these guys are above the rules. If you let one person bend the rules, it opens the flood gates & soon enough everyone will want to run a street car motor. Eventually the club could transform into a high dollar midget class... Don't get me wrong, its a neat idea, but it should be racing in some type of midget class like focus, ecotec, or Illini Racing Series. Mini sprints need to stick with bike motors. They are cheap, reliable and have a high availability.

Posted via Mobile Device

[DAD]

Originally Posted by RickyBobby I just don't like how these guys are above the rules. If you let one person bend the rules, it opens the flood gates & soon enough everyone will want to run a street car motor. Eventually the club could transform into a high dollar midget class... Don't get me wrong, its a neat idea, but it should be racing in some type of midget class like focus, ecotec, or Illini Racing Series. Mini sprints need to stick with bike motors. They are cheap, reliable and have a high availability. Posted via Mobile Device

E-V-O-L-U-T-I-O-N==== Change hopefully for the bettter. We are a midget class dang it. 1000 cc midget.

If it works it works if it don't it don't. Mini sprints almost died out about about 15 years ago the only thing that save them was the little 600 cc cars and then the 1000cc rocket ships.

You are either changing or dying. I think that is what has happened to Champ cars , and full midgets. Time marches on racing needs to do the same.

I understand even NASCAR changed to electronic injection and did away with carbs about 20 years after Detroit did. Quarter midgets finally put the Continental Red Seal to rest, and even three quarter midgets are looking at the old 750 Suzuki motor as an improvement over the 40 year old Honda 750 cc motor.

If a guy has a good idea at least give him a shot.

Honest Dad himself

---------- Post added at 1:43 PM ---------- Previous post was at 1:35 PM ----------

After you have been taken as much as we have it don't get to you as much. Let's race.

Honest Dad himself