One-piece DSS aluminum drive shaft limits - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

shines · 02-10-2012, 12:46 AM

While on the phone with LPE to discuss oil leaking issues I'm having with their 9.5" differential, they asked what top speeds I run the car and said not to take a 1 piece drive shaft beyond 150 with 4.10 gears as it will eventually suffer a catastrophic failure. Can anyone else confirm this?

I've got an email into DSS. Hope it's rumor as I just bought the one piece shaft to match my LPE differential.

*SSE 4 2SS* · 02-10-2012, 12:53 AM

Quote:

Originally Posted by shines

While on the phone with LPE to discuss oil leaking issues I'm having with their 9.5" differential, they asked what top speeds I run the car. I told them 160-170 and they said not to take a 1 piece drive shaft beyond 150 with 4.10 gears as it will eventually suffer a catastrophic failure. Can anyone else confirm this?

I've got an email into DSS. Hope it's rumor as I just bought the one piece shaft to match my LPE differential.

How tall are your rear tires... 29.something... That's what I think the factory tire is...

shines · 02-10-2012, 12:54 AM

Quote:

Originally Posted by SSE 4 2SS

How tall are your rear tires... 29.something... That's what I think the factory tire is...

315/35 20's. So I think they're just under 29"

*SSE 4 2SS* · 02-10-2012, 01:01 AM

ok, then ask Frank if the shaft will handle roughly 8000 rpm.... Drive shaft rpm....They offer the high speed balancing for a bit more to my knowledge... up to or just over 9000 shaft rpm....

The formula is top speed * 336 * gear ratio /tire height....

In your case, I used 29.0"... so, 170*336*4.10 / 29.0
=8075 shaft RPM's...

This is from the DSS website... Ask Frank about it...

We will need to know the following:

HP/Torque of the motor
Transmission
Rear ratio
Rear tire size and height
Top MPH the car will see
Weight of the car with driver

With this info we will be able to check for overall strength, critical speed and durability needed. All shafts are hand made in our Carolina facility and carefully packed for shipping within days. If you’re looking for a racing shaft give is a call and let us make you a custom shaft for your application.
To check for critical speed, calculate this equation:
Top speed x 336 (a constant) x rear ratio (like 4.10), then divide it by the tire height (28” tall tire).

Hope this helps

*SSE 4 2SS* · 02-10-2012, 01:04 AM

actually, 8165 is the critical shaft rpm for 170 mph.... based on a 28.68 inch tire height...and 4.10 gears

I looked it up just to be sure....

Driveshaftshop · 02-10-2012, 06:11 AM

I haven't received an email but i can help out, is the car auto or Stick ?

02-10-2012, 12:46 AM	#1
shines Drives: 2010 Camaro SS/RS Join Date: Aug 2011 Location: USA Posts: 328	One-piece DSS aluminum drive shaft limits While on the phone with LPE to discuss oil leaking issues I'm having with their 9.5" differential, they asked what top speeds I run the car and said not to take a 1 piece drive shaft beyond 150 with 4.10 gears as it will eventually suffer a catastrophic failure. Can anyone else confirm this? I've got an email into DSS. Hope it's rumor as I just bought the one piece shaft to match my LPE differential.

02-10-2012, 01:01 AM	#4
SSE 4 2SS Boosted Moderator Drives: Bone Stock LS3 Join Date: Sep 2009 Location: Marion Tx Posts: 15,488	ok, then ask Frank if the shaft will handle roughly 8000 rpm.... Drive shaft rpm....They offer the high speed balancing for a bit more to my knowledge... up to or just over 9000 shaft rpm.... The formula is top speed * 336 * gear ratio /tire height.... In your case, I used 29.0"... so, 1703364.10 / 29.0 =8075 shaft RPM's... This is from the DSS website... Ask Frank about it... We will need to know the following: HP/Torque of the motor Transmission Rear ratio Rear tire size and height Top MPH the car will see Weight of the car with driver With this info we will be able to check for overall strength, critical speed and durability needed. All shafts are hand made in our Carolina facility and carefully packed for shipping within days. If you’re looking for a racing shaft give is a call and let us make you a custom shaft for your application. To check for critical speed, calculate this equation: Top speed x 336 (a constant) x rear ratio (like 4.10), then divide it by the tire height (28” tall tire). Hope this helps __________________ If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough...

02-10-2012, 01:04 AM	#5
SSE 4 2SS Boosted Moderator Drives: Bone Stock LS3 Join Date: Sep 2009 Location: Marion Tx Posts: 15,488	actually, 8165 is the critical shaft rpm for 170 mph.... based on a 28.68 inch tire height...and 4.10 gears I looked it up just to be sure.... __________________ If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough...

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02-10-2012, 06:11 AM	#6
Driveshaftshop Drives: own more cars than i can list Join Date: Nov 2010 Location: Charlotte NC Posts: 1,124	I haven't received an email but i can help out, is the car auto or Stick ?