Drivetrain Breakage discussion....
Launching!
Joined: Nov 2001
Posts: 254
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From: NC
Re: Drivetrain Breakage discussion.... The only factory piece in G2's list that I have broken in Road-Racing is the clutch, and GM gave me the 02' Z06 clutch to replace it. Let me tell you, the alignment retainer (the part that keep braking) is 1mm thicker, and seems to be much much more durable.
I have had not problems with the other items, but I try and be very easy on my drivetrain. Drag-racing would be another story!
Dave
I have had not problems with the other items, but I try and be very easy on my drivetrain. Drag-racing would be another story!
Dave
Re: Drivetrain Breakage discussion.... [quote] I read that GM changed the torque tube in 2001. Whats your opinion on the new one vs the old one?
Eric <hr></blockquote>
Eric,
you are correct on that. I edited my post, and so far, we have yet to see any break.
Louis Gigliotti Jr.
www.LGMotorsports.com
Eric <hr></blockquote>
Eric,
you are correct on that. I edited my post, and so far, we have yet to see any break.
Louis Gigliotti Jr.
www.LGMotorsports.com
Drivetrain Breakage discussion.... The Corvette is a GREAT car, but going deeper into the 9s, drivetrain problems are going to occur. here is a list:
-twisting Tq tube(GM modified in 2001)
-Broken Halfshafts
-Broken u-joints
-Broken Ring Gears
-Broken rear-end output shafts
-Clutches
If there is anything else that seems to be breaking post up here so that LG Motorsports and othet vendors can come up with some stronger solutions.
Louis Gigliotti Jr.
www.LGMotorsports.com
[ November 15, 2001: Message edited by: G2 LS1 ]</p>
-twisting Tq tube(GM modified in 2001)
-Broken Halfshafts
-Broken u-joints
-Broken Ring Gears
-Broken rear-end output shafts
-Clutches
If there is anything else that seems to be breaking post up here so that LG Motorsports and othet vendors can come up with some stronger solutions.
Louis Gigliotti Jr.
www.LGMotorsports.com
[ November 15, 2001: Message edited by: G2 LS1 ]</p>
TECH Enthusiast
Joined: Nov 2001
Posts: 511
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From: Godspeed
Re: Drivetrain Breakage discussion.... Louis I do know some people who have twisted their torque tunnels.
Here is the GM info on the 2001 torque tunnel, this is from the 2001 press guide... Stronger Driveshaft
[quote]
The driveshaft is upgraded from a metal-matrix composite to aluminum alloy 6061, and it is increased in diameter from 55 to 63 mm. Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability."
<hr></blockquote>
Here is the GM info on the 2001 torque tunnel, this is from the 2001 press guide... Stronger Driveshaft
[quote]
The driveshaft is upgraded from a metal-matrix composite to aluminum alloy 6061, and it is increased in diameter from 55 to 63 mm. Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability."
<hr></blockquote>
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Launching!
Joined: Nov 2001
Posts: 254
Likes: 0
From: NC
Re: Drivetrain Breakage discussion.... LG:
are you guys into drag racing??? I have road-raced with you for years (thanks for loaning me the Camaro trans at Mid-Ohio back in 94'), but didn't know you had C5's running in the 9s.
David Farmer
are you guys into drag racing??? I have road-raced with you for years (thanks for loaning me the Camaro trans at Mid-Ohio back in 94'), but didn't know you had C5's running in the 9s.
David Farmer
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Verdad Gallardo Re: Drivetrain Breakage discussion.... dave,
We have a goal to run in the 9's, but there are a LOT of people that are breaking those particular parts. We are simply trying to make a good, solid drivetrain for these cars, thats all. Still Road Racing though in case you were curious, but opening the door in Drag Racing.
We have a goal to run in the 9's, but there are a LOT of people that are breaking those particular parts. We are simply trying to make a good, solid drivetrain for these cars, thats all. Still Road Racing though in case you were curious, but opening the door in Drag Racing.
Staging Lane
Joined: Nov 2001
Posts: 50
Likes: 0
From: Houston
Re: Drivetrain Breakage discussion.... I am currently having my M6 rebuilt for the second time. Previously, I have bent the 3rd-4th gear fork and synchros. This time it looks like I've busted the input shaft. For this current rebuild I have a steel fork going in that came from D&D performance.
I've got 439 Rwhp and 533 Rwtq with the spray. I am running on Nittos...never run on cheater slicks.
the tranny is the weak part of the driveline for me...but I'm not running 9's...just high 11's. I know of atleast 4 others who are having trouble keeping their 6-speed in one piece.
I've got 439 Rwhp and 533 Rwtq with the spray. I am running on Nittos...never run on cheater slicks.
the tranny is the weak part of the driveline for me...but I'm not running 9's...just high 11's. I know of atleast 4 others who are having trouble keeping their 6-speed in one piece.
TECH Enthusiast
Joined: Nov 2001
Posts: 511
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From: Godspeed
Re: Drivetrain Breakage discussion.... [quote]This time it looks like I've busted the input shaft. <hr></blockquote>
Is there a tougher input shaft available? Or would it be possible to use a higher spline shaft?
Keep in mind SW was the first C5 (and only manual) to run in the 9's. He has experienced his fair share of drivetrain breakage, but his philsophy which I agree with is to launch softly at 3k.
What kind of clutch are using and how high RPM clutch dumps are you doing when the tranny breaks?
Is there a tougher input shaft available? Or would it be possible to use a higher spline shaft?
Keep in mind SW was the first C5 (and only manual) to run in the 9's. He has experienced his fair share of drivetrain breakage, but his philsophy which I agree with is to launch softly at 3k.
What kind of clutch are using and how high RPM clutch dumps are you doing when the tranny breaks?
Staging Lane
Joined: Nov 2001
Posts: 50
Likes: 0
From: Houston
Re: Drivetrain Breakage discussion.... [quote]Originally posted by Godspeed:
<strong>
Is there a tougher input shaft available? Or would it be possible to use a higher spline shaft?
What kind of clutch are using and how high RPM clutch dumps are you doing when the tranny breaks?</strong><hr></blockquote>
Unfortunately I don't have any information about any upgrade input shafts <img src="images/icons/frown.gif" border="0"> To be honest, I am completely in the dark about upgrading anything in these trannies. Thankfully the steel fork was brought to my attention by MelloYellow on the CorvetteForum. He's going through his second rebuild right now too.
I had a 2001 clutch/slave installed when the rebuilt the tranny last time. That's the funny thing. I haven't been to the strip since the rebuild and I don't do any hard launching. If I do run from a stop, I'll slip the clutch instead of dump. Whatever broke just snapped after I powershifted second on a slick asphault road no less!?! It was in gear for a sec. before it went, too. It didn't happen during the shift?!? I'm thinking we're gonna find a bad bearing or something because I was hearing some noise for a month before it broke. Hopefully, it'll be out of the car tomorrow so I can find out.
People keep telling me to stop powershifting but that ain't gonna happen. I just need to build a better tranny!
Thanks for the reply
<strong>
Is there a tougher input shaft available? Or would it be possible to use a higher spline shaft?
What kind of clutch are using and how high RPM clutch dumps are you doing when the tranny breaks?</strong><hr></blockquote>
Unfortunately I don't have any information about any upgrade input shafts <img src="images/icons/frown.gif" border="0"> To be honest, I am completely in the dark about upgrading anything in these trannies. Thankfully the steel fork was brought to my attention by MelloYellow on the CorvetteForum. He's going through his second rebuild right now too.
I had a 2001 clutch/slave installed when the rebuilt the tranny last time. That's the funny thing. I haven't been to the strip since the rebuild and I don't do any hard launching. If I do run from a stop, I'll slip the clutch instead of dump. Whatever broke just snapped after I powershifted second on a slick asphault road no less!?! It was in gear for a sec. before it went, too. It didn't happen during the shift?!? I'm thinking we're gonna find a bad bearing or something because I was hearing some noise for a month before it broke. Hopefully, it'll be out of the car tomorrow so I can find out.
People keep telling me to stop powershifting but that ain't gonna happen. I just need to build a better tranny!
Thanks for the reply
TECH Apprentice
Joined: Nov 2001
Posts: 398
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From: Sterling Heights Mi
Re: Drivetrain Breakage discussion.... We need an SFI bellhousing, and flywheel. And the hydraulics for the clutch just suck. You need a fully adjustable master cylinder, and a slave with a stronger wear face. The improved hydraulics will cure a lot of trans problems.
TECH Fanatic
Joined: Nov 2001
Posts: 1,986
Likes: 1
From: Centrifugal City
Re: Drivetrain Breakage discussion.... Here's a C5 Tranny Strengthening post by Cemo: http://forums.corvetteforum.com/zerothread?id=192593
Here's my situation if anyone wants to comment! I'm mostly curious if the TQ Tube tends to fail after a complete Tranny failure or if that isn't related..
:::
Nice puppy thrown in with the blown C5 tranny, why not.. I hold all the breakage records anyhow, LOL!!
Seriously tho, how many have broken their TQ tubes? I have obviously. What would cause one to fail? If the tranny blows up bad or a tranny gear seizes, would that brake the TQ tube? Would a grabby clutch contribute? No complaints about my Kevlar holding..
Another important thing, how would a failed TQ Tube impact the disc hub? Might it cause damage? What should I look for on the TQ tube as to how it failed to determine if their might might clutch disc/hub damage? Hard to get at the bellhousing with the headers on. So.. trying to guess.
If the new TQ Tube spline aligns and fits the disc ok, should I be able to assume everything is ok? Driveshaft comparisons to TQ Tube are ok.
FWIW, Hydraulics & PP feel ok. Mech visual inspect of disc hub thru bellhousing 'said' it looked ok. Hmm.. But Now is the time to do something with the clutch if needed. Not popular with my mech as to the headers will attract attn to the warranty work.
:::
Here's my situation if anyone wants to comment! I'm mostly curious if the TQ Tube tends to fail after a complete Tranny failure or if that isn't related..
:::
Nice puppy thrown in with the blown C5 tranny, why not.. I hold all the breakage records anyhow, LOL!!
Seriously tho, how many have broken their TQ tubes? I have obviously. What would cause one to fail? If the tranny blows up bad or a tranny gear seizes, would that brake the TQ tube? Would a grabby clutch contribute? No complaints about my Kevlar holding..
Another important thing, how would a failed TQ Tube impact the disc hub? Might it cause damage? What should I look for on the TQ tube as to how it failed to determine if their might might clutch disc/hub damage? Hard to get at the bellhousing with the headers on. So.. trying to guess.
If the new TQ Tube spline aligns and fits the disc ok, should I be able to assume everything is ok? Driveshaft comparisons to TQ Tube are ok.
FWIW, Hydraulics & PP feel ok. Mech visual inspect of disc hub thru bellhousing 'said' it looked ok. Hmm.. But Now is the time to do something with the clutch if needed. Not popular with my mech as to the headers will attract attn to the warranty work.
:::
TECH Fanatic
Joined: Nov 2001
Posts: 1,986
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From: Centrifugal City
Re: Drivetrain Breakage discussion.... The numbers I found were:
88893994 - '00 ?
88893995 - '??
88894025 - '01-'02
They aren't listing the '01-'02 as the replacement part for the 2000. If they go to a larger diam TQ Tube, what else has to match? I think they are saying it's not compatible with the 2000. What part of the spline/pilot bearing/input shaft has to match the increased diam of the torque tube for it to work??
88893994 - '00 ?
88893995 - '??
88894025 - '01-'02
They aren't listing the '01-'02 as the replacement part for the 2000. If they go to a larger diam TQ Tube, what else has to match? I think they are saying it's not compatible with the 2000. What part of the spline/pilot bearing/input shaft has to match the increased diam of the torque tube for it to work??
