treynor
Enthusiast
What RWTQ level are these rated for? Can they be used on the dragstrip? Any warranty?
New Devlopment for Vipers
- Thread starter treynor
- Start date
"2500 bucks for a reduction of 7 lbs of unsprung weight?
7 lbs of unsprung weight will drop your lap time 2 seconds?"
I'm thinkin I might be better off spending 1700 to 2000 for a set of Monocoque lightweight wheels (17" diameter wheels have a larger PMOI than 4-5 inch diameter half shafts and should result in a larger reduction in lap time when speaking to rotating weight reduction) that will remove at least 35 pounds of unsprung, rotating weight, which should decrease your lap time by 10 seconds! (if you subscribe to the theory that a 7 lb reduction is worth 2 seconds)
Geez, what are these half shaft made of, Unobtanium?
7 lbs of unsprung weight will drop your lap time 2 seconds?"
I'm thinkin I might be better off spending 1700 to 2000 for a set of Monocoque lightweight wheels (17" diameter wheels have a larger PMOI than 4-5 inch diameter half shafts and should result in a larger reduction in lap time when speaking to rotating weight reduction) that will remove at least 35 pounds of unsprung, rotating weight, which should decrease your lap time by 10 seconds! (if you subscribe to the theory that a 7 lb reduction is worth 2 seconds)
Geez, what are these half shaft made of, Unobtanium?
varanus
Enthusiast
Hey 1bad gts..good call!
pauls
Enthusiast
Don't know how those 1" dia axles on the GTS R can take more launch torque than the half Shaft? Yes, getting the bind/squat out in the launch is a benefit. But doesn't this mod require new internals in the rear end? ie New yokes coming out of center section.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by 1bad gts:
..MY friend has a 1500.00 set of CUSTOM Unitrack halfshafts on his 600 rear wheeled Viper which he runs on Slicks.The halfshafts Work great (they never break)instead the power goes straight to the rear end and tranny which GRENADE 2-3 times per year. <HR></BLOCKQUOTE>
The 'spline bind' that Keith refers to is a by-product of the weaker, OE shafts, after the splines wear. CV by design are immune. The Unitrax Lightweight SuperShafts (List $1595, PartsRack $1495) are hardened, and 7 lbs lighter (the set) than OE, and rated to 1000HP. Unitrax reports no failures or warranty issues due to worn splines.
But CV differentials for Viper have been around quite a while.....just heavier. Keiths shafts MAY require the Quaiffe Diff.....I dont know by the first post if they work with OE.
..MY friend has a 1500.00 set of CUSTOM Unitrack halfshafts on his 600 rear wheeled Viper which he runs on Slicks.The halfshafts Work great (they never break)instead the power goes straight to the rear end and tranny which GRENADE 2-3 times per year. <HR></BLOCKQUOTE>
The 'spline bind' that Keith refers to is a by-product of the weaker, OE shafts, after the splines wear. CV by design are immune. The Unitrax Lightweight SuperShafts (List $1595, PartsRack $1495) are hardened, and 7 lbs lighter (the set) than OE, and rated to 1000HP. Unitrax reports no failures or warranty issues due to worn splines.
But CV differentials for Viper have been around quite a while.....just heavier. Keiths shafts MAY require the Quaiffe Diff.....I dont know by the first post if they work with OE.
Tom and Vipers
Enthusiast
The "fuse" is supposed to be the drive shaft.
Look at heavy trucks and equipment.
As far as rather breaking a diff or trans over a 1/2 shaft doesn't make sense to me.
Look at heavy trucks and equipment.
As far as rather breaking a diff or trans over a 1/2 shaft doesn't make sense to me.
SnakeBitten
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Whoa..You get a diff and halfshafts as a package for 2195.00?? that less than the $2500 Kmoody quotes for just cv halfshafts....Hmmmmm
Vic
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Hitting the wall after breaking a half-shaft hardly compares to having your tranny replaced.
One is a routine repair, the other changes your life, or ends it! Ask Doug Levin, I'm pretty sure he broke his half shaft in his 7 second Vette. The vid of him hitting the wall, and his car disintegrating, is floating around somewhere. He was racing Sir Hiss, (8 second car at the time), and Doug's Vette suddenly veered right into the wall after launch. Safety loops would not have prevented this, its the applied torque to a single wheel that makes the car power steer.
One is a routine repair, the other changes your life, or ends it! Ask Doug Levin, I'm pretty sure he broke his half shaft in his 7 second Vette. The vid of him hitting the wall, and his car disintegrating, is floating around somewhere. He was racing Sir Hiss, (8 second car at the time), and Doug's Vette suddenly veered right into the wall after launch. Safety loops would not have prevented this, its the applied torque to a single wheel that makes the car power steer.
V10 MOJO
Enthusiast
this traction control set up wouldnt be of any benifit on the dragstrip would it
joe117
Enthusiast
Traction control keeps the wheels from spinning by brakes and powering down. Not good for racing.
A good gadget for hot drag cars might be a gyroscope based ignition cutoff. If the car departed from straight line by a preset degree, the engine would shut down and the brakes would come on.
Might keep a car off the wall.
A good gadget for hot drag cars might be a gyroscope based ignition cutoff. If the car departed from straight line by a preset degree, the engine would shut down and the brakes would come on.
Might keep a car off the wall.
monnieh
Viper Owner
This is a form of mechanical traction control. There is no brake use in the Quaife differential.
I want the Quaife rear end, CV Half Shafts, and Bobby's ABS system but can not rationalize putting $14K+ into my car that I will never get out again.
Of course, if I break a half shaft at the drag strip and slam into the wall, lock up my brakes and slide into an 18wheeler, or have my rear end spin out from over powering it and spinning into another car, the money would have looked like a bargin, if I lived through it.
What do you think? Is it worth doing the three mods or are the chances of one of these things happening too small to justiy the expense?
I want the Quaife rear end, CV Half Shafts, and Bobby's ABS system but can not rationalize putting $14K+ into my car that I will never get out again.
Of course, if I break a half shaft at the drag strip and slam into the wall, lock up my brakes and slide into an 18wheeler, or have my rear end spin out from over powering it and spinning into another car, the money would have looked like a bargin, if I lived through it.
What do you think? Is it worth doing the three mods or are the chances of one of these things happening too small to justiy the expense?
BigCarrot
Enthusiast
I think I'll just buy some Unitrax half shafts. I can spend the other $1700 on beer, hookers, lap dances and lots of other ill *****. lol
