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Posted
Still not as big as the Raptor's 660! ;)

yea but puts out double the exhaust gas. thats no dune motor. straight line only.

Posted

Only thing it needs now are some powervalves. That this would be hella fun.

 

One note, the 450r would lap the 660 and it's quite a bit smaller. That banshee 617 would move so much freaking air that the raptor wouldn't even have a moment's glance, hell that thing would be done with the 1/4 before the rappy lets his freaking clutch out.

Posted
holy cock, thats a beastly engine, just for comparison how much hp does urs have nyuk?

no where near his, mines only a stock stroke 402.

Posted

he said that the gears were straight cut, but when i split my case my gears were straight cut as well, so dont they all come like this? or does mine have more money in it than i thought

Posted

Why is there even a comparison to the raptor..... :wacko:

I thought that the gears came strait cut from the factory too?

Posted

I'm guessing here, but i think they are talking about crankgear to clutch gear. these come \\\\ cut from the factory.

 

Since this thing has an aftermarket tranny anyways i bet the clutch/crank gears are involved here.

on top of that i'm most certain the stock transmission is already straight cut anyways.

 

yep my money is on clutch gear.

Posted
I was looking at his other items,whats a 1-4 overdrive tranny?

I hope I do this right:

 

The gears 1 through 4 have been back cut so you don't have to use the clutch to shift, along with the shift drums.

Basically what happens is you are in 1st gear, and when you normally shift, you pull in the clutch, you move the shift lever causing the rotation of a drum which in turn slides a fork that engages the drive dogs of the next gear.

 

With an overdrive (sometimes called an override) the drive dogs on the gears have been back cut with ramps that allow them to engage flawlessly, but the shift drums have been relieved as well. When you select the next gear the counter shaft spins faster than it was with the previous gear, and the gear going slower is forced away from the driving gear due to those ramps, and the fork is allowed to slide over and out of the way so it doesn't get bent.

 

This is why you have to pull in the clutch when you lift off the gas with an override. If you haven't selected another gear, there is no clearance on the shift drum for the fork to slide, and the ramped drive dogs will allow (force) the gear to disengage, but there is no where for the fork to slide, so it will get bent.

Good for drag racing imho. Not for the everyday rider.

Posted
I'm guessing here, but i think they are talking about crankgear to clutch gear. these come \\\\ cut from the factory.

 

Since this thing has an aftermarket tranny anyways i bet the clutch/crank gears are involved here.

on top of that i'm most certain the stock transmission is already straight cut anyways.

 

yep my money is on clutch gear.

You are right.

 

When they mention straight cut gears, they are talking about the primary set. From the factory they are \\\ because they are quieter mostly. But this can cause side pressure on your crank and cases under extreme hp. Straight cut gears are stronger, and won't cause a side loading situation when you have 149 hp.

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