Open Class Engine Rules?

[THUMPCRAFT]

Why no efi allowed? that takes alot of the sport bike engines out of the running?

[hero_saku39]

I think those are old(er) rules from the Austrailian org. TORC. *I would think that today for our purposes that fi will be allowed considering that most late model (within 5-7 years) bike engines are fi.

General comments for everyone.

agree? disagree?

I think we should consider that redneck home builders (like me) may make up a large portion of these classes in the future and plan a sub class around this?

[Bugpac]

No efi? wtf, that puts kfabs briggs cars out right off the bat with the 500 yamys, I didnt notice were efi was mentioned, i think that is obserd if it was....

[hero_saku39]

Originally Posted by Bugpac\";p=\&quot

No efi? wtf, that puts kfabs briggs cars out right off the bat with the 500 yamys, I didnt notice were efi was mentioned, i think that is obserd if it was....

It was in the long post here:

http://www.minibuggy.net/modules.php?na ... pic&t=2930

It is near the bottom under "Induction" just below engine specs for Open class.....Those are the TORC specs from Austrailia. Older specs?

"Motor:

i) Engines may be either single or multi-cylinder, but must be from an Odyssey, Pilot or chain-drive motorcycle, commonly available from an Australian retailer.
ii) Vehicles may have only one engine, which is to be mounted at the rear of the driver.
Maximum of 1100cc *4 stroke
Maximum of 650cc *2 stroke
Only the rear wheels may be driven.

Induction:

Forced induction, or fuel injection are not permitted. Negative manifold pressure at the engine is compulsory. "

[Pacman]

Originally Posted by hero_saku39\";p=\&quot

i) Engines may be either single or multi-cylinder, but must be from an Odyssey, Pilot or chain-drive motorcycle, commonly available from an Australian retailer.

So we are going to have to get our engines from Australia? * Not really......if you read back in the other thread K-fab had mentioned that he had gotten the Australian specs and was going to post them so we could use them as a base and change what is needed to match our needs...I would ASSUME that these are those specs......at least I hope we don't have to get our engines from Aus....shipping will be a killer...not to mention that the engines only run in the left lane of the highway and not the right!

[hero_saku39]

Yes, those ARE THE TORC AUSTRALIA SPECS.

[THUMPCRAFT]

is there a limit on # of cylinders? or valves?

[Pacman]

Originally Posted by THUMPCRAFT\";p=\&quot

is there a limit on # of cylinders? or valves?

No! There is nothing yet!!! We are in the development stage right now......this is the time to throw out the idea's as to what we need to have as rules.....no rules have been set.....what's posted above are the TORC Australian rules.....something to read and comment on so we can come up with rules of our own! [smilie=banghead.gif]

[Rorty]

Originally Posted by hero_saku39\";p=\&quot

Motor:
i) Engines may be either single or multi-cylinder, but must be from an Odyssey, Pilot or chain-drive motorcycle, commonly available from an Australian retailer.
ii) Vehicles may have only one engine, which is to be mounted at the rear of the driver.
Maximum of 1100cc *4 stroke
Maximum of 650cc *2 stroke
Only the rear wheels may be driven.

Induction:
Forced induction, or fuel injection are not permitted. Negative manifold pressure at the engine is compulsory. "

I sent K-fab a digital copy of the 1999 TORC Handbook and at that period, even though FI bikes were common on the roads, not many had filtered down to the wreckers' yards. There were a few FI engines around and anyone with a big budget could have availed themselves of one and gained a competitive edge, thus the rule banning EFI engines. IIRC, the rule was ammended to include FI engines a couple of years later when they became more commonplace.

It's all about keeping a level playing field so no competitor can gain an advantage over another aside from superior vehicle preparation and driving skill.

[hero_saku39]

Everyone chime in on what you are using or plan to use for a car this size.

It seems that most are using/plan on using about 500-600cc sled and bike engines. *How many are using 2 strokes? *

Edit: *My brother and I plan on building two. *One will have 600cc fi mc engine. *Leaning towards cvt for the other so comparison and development will be easier.