Eliminating Axel Hop in the C3 IRS? - Corvette Forum : DigitalCorvettes.com Corvette Forums
 
 
Go Back   Corvette Forum : DigitalCorvettes.com Corvette Forums > C3 Corvette Forums > C3 Corvette
Register Forums Garage Garage Mark Forums Read Auto EscrowInsurance Advertise

Notices

C3 Corvette
C3 Corvette General | Technical | Performance | Aftermarket | Discussions

Other sections:
Corvettes Classifieds
Corvette Detailing & Car Care
Corvette Audio/Video/Radar
General Automotive/Shop/Tools
Corvette Performance Driving/Racing

( Sponsored by: Zip Corvette Parts )

Shops/Tuners
Custom Image Corvettes
A&A Corvette
Corvette tuner

Interior
Corvette aftermarket products

Insurance



Parts & Products
Race Ramps
Edelbrock
ATI/Procharger
Corvetteguys.com
Melrose Motorsports
Parts Taxi
Airaid
Pfadt Racing
Madvette Motorsports
Hi-tech Custom Concepts
Corvette Garage
Corvette Parts and Accessories
Corvette Car Care Products
Corvette HID

Tracks/Schools
Bob Bondurant School of High Performance Driving
Corvette driving school

Wheels/Tires
Cray Wheels

Services
BADWERKS.com
Reply
 
Thread Tools
Old 12-14-2007, 01:46 AM   #1
vettezuki
DC Crew
 
vettezuki's Avatar
 
Posts: 1,476
Member #11873
Member since: Apr 2004
Location: Fullerton/CA/USA

My Corvette(s)
Very Naughty LSx C3

Thanks: 0
Thanked 0 Times in 0 Posts
Eliminating Axel Hop in the C3 IRS?

I was at Irwindale Speedway tonight, and my LSx powered C3 hoped around like a crack head. Well, that is before it blew up the output shaft on my T56. Anyway, is there a reasonable way to reduce the axel hop in a C3 rear suspension under hard launches? Anybody using the Drag Vette setups with positive results? I have the VB&P Dual mount mono spring and heim jointed camber rods, but basically stock type setup.
vettezuki is offline   Reply w/quote Quick reply to this message
"Man's greatest joy is to crush his enemies and have them flee before him, to seize his possessions, hear the wailing of his women, and embrace his wives and daughters." - Ghengis Khan

My Vette
Sponsored Links
Advertisement
 
Old 12-14-2007, 04:01 AM   #2
enkeivette
DC Crew
 
enkeivette's Avatar
 
Posts: 1,227
Member #24581
Member since: Dec 2004
Location: OC, CA, USA

My Corvette(s)
Procharged 6.3L 6 Speed 78

Thanks: 0
Thanked 0 Times in 0 Posts
How the hell did you manage that with a 255 tire?! I thought that T56 was built.

By the way I've never once had wheel hop in the Vette. What kind of shcoks are you running? And how are you launching?
enkeivette is offline   Reply w/quote Quick reply to this message
Objects in the mirror have received punishment.

Specs

formerly "torqvette"
Old 12-14-2007, 04:26 AM   #3
vettezuki
DC Crew
 
vettezuki's Avatar
 
Posts: 1,476
Member #11873
Member since: Apr 2004
Location: Fullerton/CA/USA

My Corvette(s)
Very Naughty LSx C3

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by torqvette View Post
How the hell did you manage that with a 255 tire?! I thought that T56 was built.

By the way I've never once had wheel hop in the Vette. What kind of shcoks are you running? And how are you launching?
Skill my boy . . . skill. Wait, no lack of skill.

Shocks are Bilstein Heavy Duty. I read at Drag Vette (tonight) that while the dual mount is swell for auto cross, it can lead to hop in a drag launch. My launch was at around 1,800 with a quick slip of clutch (I don't drop at 4,000 or any such thing.)

I'm thinking more and more, that the output shaft must have been defective, but it only emerged under a harsh sticky condition. I would expect my stock half-shafts, U-joints to go before the output shaft of the T56. The built part, BTW, is that it has steel shift forks and carbon fiber synchros internally. However, the output shaft is stock number of splines, which should be plenty adequate for my fairly moderate 450 BHP motor.
vettezuki is offline   Reply w/quote Quick reply to this message
"Man's greatest joy is to crush his enemies and have them flee before him, to seize his possessions, hear the wailing of his women, and embrace his wives and daughters." - Ghengis Khan

My Vette
 
Old 12-14-2007, 05:23 AM   #4
TheSkunkWrks
DC Crew
 
TheSkunkWrks's Avatar
 
Posts: 421
Member #64183
Member since: Aug 2007
Location: Graceland

My Corvette(s)
1978 SA, Not Correctly Restored Stingray

Thanks: 0
Thanked 0 Times in 0 Posts
Torque can do some amazing things. At different times, I've trashed a diff, broken a T10 and yanked the lugs out of a stub, all on 255's and not even at the track. That's why I've got a light weight flywheel (SFI), 12-bolt IRS and Guldstrand stubs with 1/2" x 3" lugs. BTW, with solid U's the General's 3" half-shafts have done just fine.

Just thought I'd share...
TheSkunkWrks is offline   Reply w/quote Quick reply to this message
If your shark can't pull at least 1 "G" you've got more work to do. williscustomhomestn.com
Old 12-14-2007, 06:27 AM   #5
Kaos
DC Crew
 
Kaos's Avatar
 
Posts: 855
Member #61596
Member since: Jun 2007
Location: Miami, FL

My Corvette(s)
69 Resto-mod

Thanks: 0
Thanked 2 Times in 2 Posts
The Dragvette kit is nice, but there is a much cheaper way to acheive the same results especially if you already have a dual mount. Check out these pics that I swipped from the other forum....

Here you can see where the mounted Heim Joints to the dual mount brackets and then attached to trailing arms


Here you can see this is the Tom's $$$ setup....which is 99% identical to what that person did above making custom upper control rod using the dual mount brackets



I use to have a terrible time with wheel hop....never had any problems on the street, but at the drag strip with that VHT sticky stuff my car would hop like crazy and this was all after 100% completely new stuff in the rear. I think using the half shafts as still a supporting member still allows too much twisting of the trailing arm as the side yokes can move about 1/8" in/out but with upper control rods it does not move anymore at all. It makes it a very solid feeling ride now in the rear. I know I said I would get ya a copy of the Dragvette kit installation CD but I lost the CD and had to reformat my harddrive...sorry.
Kaos is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 07:59 AM   #6
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by TheSkunkWrks View Post
Torque can do some amazing things. At different times, I've trashed a diff, broken a T10
We had a military jeep in HS with a V-8. We broke axles and blew up the T-10 every weekend. T-10 ain't that strong. We even exploded the cluster gear.
big2bird is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 08:18 AM   #7
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by vettezuki View Post
Anyway, is there a reasonable way to reduce the axel hop in a C3 rear suspension under hard launches?




big2bird is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 03:20 PM   #8
Solid LT1
DC Crew
 
Posts: 249
Member #59853
Member since: May 2007
Location: Fremont/CA/USA

My Corvette(s)
C5 Z06 C3 LT1 C2 Fuelly

Thanks: 0
Thanked 0 Times in 0 Posts
Go with a stiff spring (360in/lb or stiffer), stiff shocks and solid mounted crossmember (front differential mount would also be nice) and your Vette should have no problem. I launch my 72 LT-1 at 3000RPM on Hoosier Slicks (16PSI of air) and get NO WHEEL HOP just 1.50 sixty foot times. I don't see the need for the "traction bar" if you use solid mounts on the crossmember and front differential mount, it serves no purpose if you solidly mount everything. I will guarantee you that if you bang your trailing arms hard into a bumper, you will "SPIT" a side yoke retaining clip and have a very BAD day. I raise my rear ride heigth with 1.5" spacers when I run my Vette at the drags. I'm not the fastest guy on this board but at a best of [email protected] through the mufflers, my Vette isn't exactly slow.
Solid LT1 is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 03:37 PM   #9
Kaos
DC Crew
 
Kaos's Avatar
 
Posts: 855
Member #61596
Member since: Jun 2007
Location: Miami, FL

My Corvette(s)
69 Resto-mod

Thanks: 0
Thanked 2 Times in 2 Posts
man...you really know how to drive that vette and got it dialed in nicely. The fastest I have ever run was a [email protected] in the vette and in my previous car [email protected] I can't seem to break the 13's barrier but I hope to do so in Jan/Feb next year to be in high 13's after some mods. Is your LT1 stock? those are some incredible 60' times....
Kaos is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 03:40 PM   #10
vettezuki
DC Crew
 
vettezuki's Avatar
 
Posts: 1,476
Member #11873
Member since: Apr 2004
Location: Fullerton/CA/USA

My Corvette(s)
Very Naughty LSx C3

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by Solid LT1 View Post
Go with a stiff spring (360in/lb or stiffer), stiff shocks and solid mounted crossmember (front differential mount would also be nice) and your Vette should have no problem. I launch my 72 LT-1 at 3000RPM on Hoosier Slicks (16PSI of air) and get NO WHEEL HOP just 1.50 sixty foot times. I don't see the need for the "traction bar" if you use solid mounts on the crossmember and front differential mount, it serves no purpose if you solidly mount everything. I will guarantee you that if you bang your trailing arms hard into a bumper, you will "SPIT" a side yoke retaining clip and have a very BAD day. I raise my rear ride heigth with 1.5" spacers when I run my Vette at the drags. I'm not the fastest guy on this board but at a best of [email protected] through the mufflers, my Vette isn't exactly slow.
I'm running a 415 lb rear spring (Dual Mount mono, highest setting) and Bilstein Heavy Duty Shocks. I've never really had hop like that before, so I think the track conditions definitely had something to do with it. Also, I was running street tires at street pressure, so considerably harder than slicks.
vettezuki is offline   Reply w/quote Quick reply to this message
"Man's greatest joy is to crush his enemies and have them flee before him, to seize his possessions, hear the wailing of his women, and embrace his wives and daughters." - Ghengis Khan

My Vette
Old 12-14-2007, 03:49 PM   #11
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by vettezuki View Post
I'm running a 415 lb rear spring (Dual Mount mono, highest setting) and Bilstein Heavy Duty Shocks. I've never really had hop like that before, so I think the track conditions definitely had something to do with it. Also, I was running street tires at street pressure, so considerably harder than slicks.
You also have the batwing, correct?
big2bird is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 03:58 PM   #12
vettezuki
DC Crew
 
vettezuki's Avatar
 
Posts: 1,476
Member #11873
Member since: Apr 2004
Location: Fullerton/CA/USA

My Corvette(s)
Very Naughty LSx C3

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by big2bird View Post
You also have the batwing, correct?
Yes.
vettezuki is offline   Reply w/quote Quick reply to this message
"Man's greatest joy is to crush his enemies and have them flee before him, to seize his possessions, hear the wailing of his women, and embrace his wives and daughters." - Ghengis Khan

My Vette
Old 12-14-2007, 04:12 PM   #13
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
The top pic is from a batwing car. The bottom two are another LSX conversion. Both claim it eliminated wheel hop. Seems like a cheap, easy upgrade to me.
big2bird is offline   Reply w/quote Quick reply to this message
Old 12-14-2007, 04:18 PM   #14
vettezuki
DC Crew
 
vettezuki's Avatar
 
Posts: 1,476
Member #11873
Member since: Apr 2004
Location: Fullerton/CA/USA

My Corvette(s)
Very Naughty LSx C3

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by big2bird View Post
The top pic is from a batwing car. The bottom two are another LSX conversion. Both claim it eliminated wheel hop. Seems like a cheap, easy upgrade to me.
I sort of understand how a traction bar works in a typical longitudinal leaf spring setup, but I don't quite get what it's doing in a Vette style transverse leaf.
vettezuki is offline   Reply w/quote Quick reply to this message
"Man's greatest joy is to crush his enemies and have them flee before him, to seize his possessions, hear the wailing of his women, and embrace his wives and daughters." - Ghengis Khan

My Vette
Old 12-14-2007, 04:25 PM   #15
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by vettezuki View Post
I sort of understand how a traction bar works in a typical longitudinal leaf spring setup, but I don't quite get what it's doing in a Vette style transverse leaf.
It just keeps the pumpkin and spring support from torquing over.
big2bird is offline   Reply w/quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Corvette Forum : DigitalCorvettes.com Corvette Forums forums, you must first register.
Please enter your desired user name (12 CHARACTERS MAXIMUM), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
City / State / Country?
Where you live
What kind of Corvette(s) do you own?
This field is not required.
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Corvette Vanity Plate List - Add Yours! AC54ME General Corvette Topics 383 01-18-2017 09:03 PM
Custom License Plates - whats yours? RUN4CVR General Corvette Topics 151 01-27-2009 05:55 PM
Hey Patrick AC54ME Stingray's "Bad Shark" Lounge 31 04-12-2008 01:02 PM
axel hop kderderian C6 Corvette 4 05-27-2004 08:08 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -6. The time now is 04:33 AM.




Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
2003-2011, DigitalCorvettes.com - All Rights Reserved