0 Members and 1 Guest are viewing this topic.
Yah gots yer gerz bakwerds... lol The clutch sees MORE load in the higher gears. But as for the loads I do not think it will be any harder than some ofthese guys making heavy buggies and flailing on them. In fact if the bike motor was spinning a torque convertor it would have a hell of a "cush drive" right there. I have seen a lot of different bike motors turned sideways in dwarf cars with but a shaft straight to the rearend. So the reduction ratios in the tranny would only benefit for more weight and hill climbing and bigger off road tires etc. Other than the added weight and drag to me its win win win. Plus the cost is gonna blow an RPM or Jeffco out of the water. I do also not like the loss of power in the 90 degree of the ring and pinion. But again any VW tranny is seeing this some. You do not loose THAT in an RPM or Jeffco but with this you will save a lot in cost.We will call it a budget approach!(EDIT: I should say any VW Bug or Beetle or Bus tranny from yesteryear. (Not the new front drive only setups) loose thru the ring and pinion at 90 degrees)
As for a torque concerter I don't know but I'm thinking it is doable and the bike clutch would have no issues but also I think the parasitic torque losses would be huge. Most busas make what?less than 100 pounds tq?Badass turbo ones 175? Compare that to any decent car engine.
I have been toying with the ratios.But I AM right about it being harder on the clutch in the higher gears. The ratios bit is what got me to thinking about this with the manual tranny. In high gear most manual trannies are one to one (unless overdriven) So a tiny STRONG lightweight manual would have only minor drag issues feeding power thru itself in high gear and low weight. Lower gears as needed (if wished) and the beloved reverse (but face it drag in reverse should not be an issue!) The auto gear ratios would need to be looked at as I know there IS a slew of them but again with a taller rear gear ratio it could likely be easily dealt with.
Yah but is that crank or output shaft on the tranny??
No,I don't. We agree on the loads and that's why I said it won't work to use the bike tranny in just 5th or 6th so the countershaft rpm's will be similar to a standard car engine. Remember that all busa and zx's have an internal primary reduction that brings countershaft rpms down to usable levels before the tranny input shaft. When you do your math though I think you will find what i found out. Way too much for me to type out but you will soon see what I'm saying when you go to the math.
No,I don't.
Unless you run the bike motor in 5th or 6th and I doubt the bike clutch will hold up to that usage. Again maybe wrong but,IMO, that's the case.