Drive shaft- alum vs moly vs carbon vs price ?

[Morris]

Originally Posted by twobjshelbys

CSX3170 probably drives his car harder than anyone here. Don't get any more than what he has.

I doubt that.... Auto Crossing a car does not put the kind of loads on a vehicle that racing around a track at speed. Running at 186 mph 3 times a lap and then braking and then turning and accelerating put large amounts of strain on the Chassis, Driveline, and Tires and Suspension.....

That is why KMP259 was built to do that with the experience, craftmanship and Quality to the best of our ability....

Running Road America, Road Atlanta, Mid-Ohio Gateway, and Autobahn has proven it has what it takes to perform on a continued basis.

[1795]

Originally Posted by Morris

Jim

You might have to change the Yoke on the Pinion nose cause most Dana 44's have a Yoke for a Spicier 1310 U-Joint... and they are fine for the street where they don't tax the drive line.... but racing .... is a different story.

You can buy a yoke for the transmission any size you want. stay with good quality products.

Morris,

Ordered the 1350's, which is what I have on the Spicer half-shafts. Will check the differential, got a Spicer yoke for the transmission.

Thanks.

Jim

[FUNFER2]

Originally Posted by Morris

Patrick

Engineers always try to figure out smaller ways to to do things and that's there profession...... but Experience has overcome many engineering idea's....

So I believe we should listen to them then use our experience to make a intelligent decision on the side of Speed and Safety.

But when you are spinning a Drive Shaft at 7500 rpm's next to your body.... well that ends the question....

And I don't want a driveshaft failing on the rear or front on my car for one second.... the drive shaft can do a lot of damage in 2-3 seconds that it's going crazy.......you may not be able to put the clutch in at that point........that is just not smart....

That's like walking up to a Tiger and slapping him in the face and saying "now you got 2-3 seconds to go like mad".....

I was in the pits one time watching a dirt Modified race at our local track. A driver blew his tranny to hell and parts went everywhere. Although all cars are ruled to have a driveshaft hoop, he did not have it welded and mounted properly, the shaft broke at the tranny end and it stuck in the clay track, and Catapulted the car 25ft in the air like a pole vaulter !

It became funny, because the driver came out of his car laughing his ass off !

Until the track inspector found his shaft and both knuckles were Illegal !!!

[Morris]

Originally Posted by scottj

When we were running ball spline transmissions a carbon fiber driveshaft was the only type we used. In the Cobra I'm running 1350's on an 8" steel driveshaft.

Scott's been there Done That...... and knows what I'm talking about.

If you build it right .... there will not be a failure.... the manufactures have tested there products past anything you will ever accompolish....

So when we build a car for National Championship Competition ( and we built 3 Championship Cars - GT-1, GT-2) You build to the best of your ability and using a product that has the highest Quality and best success rate available.

That is why some of these Cars have Questionable reliability issues because some people are just not aware of how to build a vehicle for safety and reliability, and Speed.

[Morris]

Originally Posted by FUNFER2

I was in the pits one time watching a dirt Modified race at our local track. A driver blew his tranny to hell and parts went everywhere. Although all cars are ruled to have a driveshaft hoop, he did not have it welded and mounted properly, the shaft broke at the tranny end and it stuck in the clay track, and Catapulted the car 25ft in the air like a pole vaulter !

It became funny, because the driver came out of his car laughing his ass off !

Until the track inspector found his shaft and both knuckles were Illegal !!!

How Scary is that....

[FUNFER2]

Think that's scary, a friend in his 360ci sprint was going down the backstretch when an idiot tried to push up to the top, hitting my friend coming into turn 3, he sent him into the spot where theres a pit enterance. He hit that open guardrail at apx 125mph, with instantly,....stopping action, the worst that can happen !

His engine went over the fence, thats how hard he hit !
His eyes were blood red from stretching his retina's. LOOKED SCARY !
Other than that, he was very sore.

Very,.....blessed !

I can also tell ya very bad stories too. lol....

Anyway,.....