crowerglide

I got some old crowerglides that I use truck pulling and I like them, but it seems to me that the four disc ones are maybe harder on the mains bearings. What would be wrong with changing them from 12 stands to 8 or 9 ( I think I should have more than 6 stands with the 4 discs) They also have steel flywheels that I would like to lighten too. What's the pro and cons here????.....thanks

 

your best bet would be get ahold of LD Nation..Dave

 

Interesting observation, might want to get your clutch parts balanced individually(flywheel, pressure plate), we did once and were surprised how far out they were.

Also, we have to run more clearance in the rear main, apparantly clutch heat makes the crank rear to grow.

I have some 8x-1/2" bolt hemi flywheels that are aluminum, would that help you out?

 

yea, some of this stuff came from Nation's. I wasn't thinking of proformance as much as how it treats the motor.
I've been working on a three disc with alum wheel. changing it to 1/2" bolts and 8 stands. have been balancing the stands and bolts on my paint scale...
I'll pm about the flywheels later thanks

 

Do not remove any stands from the clutch. You are actually going to make it worse by doing that because you will lose rigidity from the flywheel to the hat and donut.

When was the last time you replaced the heat shields? Sometimes what happens is the heat shields will get tempered differently causing some major runout issues. Check the runout on both your donut and flywheel. I've seen as much as .150" on a Titanium 10.7" 3-disc flywheel, but when you take the heat shields off it goes back to dead nuts. That runout is more than enough to hammer your mains, and unfortunately grinding the heat shields won't help once it starts happening.

 

Are you talking about using a dial indicator on the face of the heat shield while the flywheel is on the motor?

 

monkey see monkey do !!

John Force racing uses 6 stand clutches & if you call up most clutch manufactures they will tell you they flex too much ?? But dont you think with the bugdet they have & r/d plus testing he has invested in the clutch dept . He would have chaged over to more stands ? but that dosent sell more new trick of the week clutches made by clutch companies .

 

Yeah, they also spin their clutch only 9,500 RPM's max and their run lasts 4 seconds. They also put a fresh clutch in every pass as well as rebuilding everything we're trying to keep together on an average weekend. Do you really think they get pissed if they spin the rear main? Their flywheel and hat might be a lot thicker than that of a 9 or 12 stand, which is a general reason for running so many stands, trying to keep weight down by using thinner material.

 

You can set it on a flat stone and it will read the same thing too, but you might need a CMM to check it to keep track of the points.