IndianaOpenWheel.com Sprint Car & Midget Racing Forum





Register! Forgot Password?
Post Reply
TQ29m (Offline)
  #11 2/16/13 9:50 AM
That's a bit LARGE for anything but a full midget, besides, the fact it would be a step in the wrong direction, Harley may be everyones dream, but not in short track racing, the 4 cyl motors ROCK! Bob

"Being old, isn't half as much fun, as getting there"! Ole Robert I!
PatrickMead#13 (Offline)
  #12 2/16/13 2:17 PM
It sure would sounds cool tho... Lol

Posted via Mobile Device
sprintracer82 (Offline)
  #13 2/16/13 2:54 PM
Talking about the v twins, I wish the rules at rumble would allow a v twin to race with the modified midgets! Nothing like the sound of a v twin screaming its guts out! Only thing other than a sprintcar engine at 8,000 rpms that sounds bada$$ is a single in a dirt track bike beating on the rev limiter at 12,000 rpms!
DAD (Offline)
  #14 2/16/13 3:43 PM
The only thing wrong with the shaft drive motors is the mfgs. never intended these to be raced. When BMW "the inventor of shaft drive motorcycles" went to a race motorcycle they made it chain drive.

Honest Dad himself
WBR 3E (Offline)
  #15 2/16/13 11:40 PM
Dwarf cars and Legends use chain drive bike motors, swapping out the gear for a coupler that attaches to the driveshaft. The motors sit longways in the car and the shaft runs down the right side of the driver. If you mounted the shaft drive motors the driveshaft would run down the drivers side - probably a weight distribution issue moving the drive to the right, but also a safety issue, as the driver would have to exit on the passenger (wall) side. Dwarf car manufacturer 'Jaxports' created a harley powered street version of a dwarf that was featured in Car and Driver (http://www.caranddriver.com/reviews/...specialty-file) - unfortunately no good photos of the driveline. Lots of rumors of harley powered dwarfs being built back in the nineties but nothing ever came of it; I think Bob's right, for the money nothing beats the 4 cyl.
badcoupe (Offline)
  #16 2/16/13 11:59 PM
If you wanted it to run and be fast it def wouldn't be a junk harley motor! I always thought a v-twin would be cool in a tq I believe hankins tried it a long time iirc. 4 cylinders are very hard to beat for the overall power and smoothness. I kinda wondered about a sled or jetski motor that doesn't have a transmission to eliminate, but the cc would probably be too much.
Bill84 (Offline)
  #17 2/17/13 7:59 AM
As far as Mini Sprints are concerned, I think you will find that most associations require chain drive.

Bill
jjones752 (Offline)
  #18 2/17/13 10:00 AM
Originally Posted by badcoupe:
If you wanted it to run and be fast it def wouldn't be a junk harley motor! I always thought a v-twin would be cool in a tq I believe hankins tried it a long time iirc. 4 cylinders are very hard to beat for the overall power and smoothness. I kinda wondered about a sled or jetski motor that doesn't have a transmission to eliminate, but the cc would probably be too much.
Terry Farrar tried a Harley in a TQ in California back in the mid-eighties; it had one Hilborn stack sticking straight forward and was so loud it hurt your ears.
If I remember right, one of the biggest problems was that it kept breaking the frame...
teamfds (Offline)
  #19 2/17/13 11:55 AM
I did run a V-Max back in the early 90's. We had a chain adaptor built off the side off the transmission and ran mechanical injection. Those parts may still be around. It made good torque but would be way down on HP compared to new 1000's.
Post Reply