2ooosrx
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Hey guys, Thought I would post these up. We at CB Performance Parts decided to race in a new class at the vintage world championship. The class was 340 single fan super stock. We ran our 1980 250 ET and won the entire class. Here are some pictures of the event, just thought I would share. Enjoy
We decided to have fun and run our Fan 340 enticer in the free air super stock class and actually made it to the semifinals...
We decided to have fun and run our Fan 340 enticer in the free air super stock class and actually made it to the semifinals...
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98700
Wishing for snow!
Congrats! That quite an accomplishment!
2ooosrx
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Thank you, It really was a lot of fun...
maxdlx
VIP Lifetime Member
Congrats Bruce good job, and nice looking sled
Gorkon
New member
Congratulations Bruce, well done. I can't help but notice that 8 out of the 10 sleds in the top photo run Yamaha power! Not odd at all that they are grandsons, so to speak, of the 71 WC 433! Thanks for the pics. G.
RJH
New member
Looks set up really good..both on the turn and striaght...
How big is the engine you ran?
Nice start...
yamaha clutch?
What track did you run?
How big is the engine you ran?
Nice start...
yamaha clutch?
What track did you run?
2ooosrx
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It is a 1980 et 250 with stock track and stock clutch, ran about 66 mph. The inside of the motor is ported. Had to run stock pipe, motor you could do what ever you want.
Love it, looks like a great time. congrats on a job done well.
Vmax540
VIP Member
Cool, just really cool ! What are the aluminum brackets under the leaf springs ? Limit travel ?
2ooosrx
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We ran the stock clutch on it because it is lighter than almost all alternative clutches we could run and the RPM's were spot on. The aluminum brackets on the ski are needed to help prevent ski roll. Without them, the ski would just bend right over because there is no strength in the leaf spring design.
RJH
New member
Vmax540 said:Cool, just really cool ! What are the aluminum brackets under the leaf springs ? Limit travel ?
Young guys...geeez..
RJH
New member
So you left the cc at 250cc?
2ooosrx
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Yes, we were allowed to punch it all the way up to a 340 if desired (not possible, cant get much more than 290 cc out of those cylinders before you are in the aluminum.) We just decided to run stock bore and stroke on the engine but we cut up the rest of the engine pretty well. Only thing that really limits those engines is the stock exhaust pipe that must not be altered.
RJH
New member
Its good to see some folks can still think......
Ya..too much overbore and the engine can't be made to work right..it will work..but not to its best.
Is that engine piston port...did you weld on a reed block?
Pretty smart with the clutch as well..light weight.
It looks like you had a pretty good chassis setup as well...
Ya..too much overbore and the engine can't be made to work right..it will work..but not to its best.
Is that engine piston port...did you weld on a reed block?
Pretty smart with the clutch as well..light weight.
It looks like you had a pretty good chassis setup as well...
2ooosrx
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The motor is piston port. And by the way, it was my son Matt doing the driving and a lot of the set up.
RJH
New member
So what other classes did you race in..how did you guys do.
Arnie C. from Ontario raced in the 300 mod somthing with a jet..he lives down the road...
Did you happed to see that race?
We just picked up a 340 GPX...74..hope to run some races next year.
Arnie C. from Ontario raced in the 300 mod somthing with a jet..he lives down the road...
Did you happed to see that race?
We just picked up a 340 GPX...74..hope to run some races next year.
Vmax540
VIP Member
48yo next month, Love to see the old girls but, just want to forget how they rode !RJH said:Young guys...geeez..
B.T.W. Do you remember the shiney steel disks (looked like meat cutters) that they put on 70's sled skis ?
montynormand
Member
I talked to Bruce Friday after the 340 class. He told me they had a little 250 that had some legs. HOLLY COW was he right. In both the heat and final he had the pack by a full straight. Thats something like 700ft!!!!!
Good show.....
Bruce, have you stopped smiling yet?
Matt, when you EAGLE lands in you shop - take it back to school with you and tell me if it helps with the ladies!!!!
LOL
Monty
Good show.....
Bruce, have you stopped smiling yet?
Matt, when you EAGLE lands in you shop - take it back to school with you and tell me if it helps with the ladies!!!!
LOL
Monty
RJH
New member
Vmax540 said:48yo next month, Love to see the old girls but, just want to forget how they rode !
B.T.W. Do you remember the shiney steel disks (looked like meat cutters) that they put on 70's sled skis ?
So good to see some guys actually making things fast again...he probally had some good HP..but it looked like it really handled..off the line to..
Would like to see some pictures under the hood...
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No - we used about 6" of carbide...but I seem to recall some talk of that...little discs that rotated..yikes...
My biggest thing is...the new guys don't get that speeds were 100 mph on 1/2 mile iced horse tracks. In the mid 70's.
The things were so light one person could almost pick one up. HP was over 100 in the 440 ..with a 300 rpm power band.
They banned the 650's cause we got them going too fast...started killing guys off.