Results 1 to 7 of 7

how well does the IRS on the C5s hold up to slicks

This is a discussion on how well does the IRS on the C5s hold up to slicks within the Drivetrain forums, part of the LSx Technical Help Section category; I dont have much experience with IRS, I have raced a few of my mustangs before and had 0 issues ...

  1. #1
    Member MachWon's Avatar
    Join Date
    May 2009
    Location
    Bavaria, Germany
    Posts
    104

    pewter
    99 vette

    how well does the IRS on the C5s hold up to slicks

    I dont have much experience with IRS, I have raced a few of my mustangs before and had 0 issues with slicks, I know for the gm 10 bolts its a different story. I have also seen my fair share of IRS cobras destroy there rear ends cuz they suck ass when you start hooking, so what about the vettes? I was going to get some M/T et streets for it and try it out at the track when its done, bad idea?

  2. #2
    cutting and welding mark21742's Avatar
    Join Date
    Mar 2008
    Location
    mercersburg pa
    Posts
    6,443

    hugger orange
    2004

    I've been wondring the same thing about the GTO's.
    I don't know how close or different the two rears are, but I know Horrop has a reinforced diff cover for the GTO that's suppossed to keep flex down, there are also upgraded axle stubs available.
    you might want to search for a vette racing club to get more first hand knowledge

  3. #3
    Member MachWon's Avatar
    Join Date
    May 2009
    Location
    Bavaria, Germany
    Posts
    104

    pewter
    99 vette

    ok, thanks

  4. #4
    Member marksls1ta's Avatar
    Join Date
    Dec 2006
    Location
    pikeville, kentucky
    Posts
    701

    black
    1998 trans am

    to full slicks they do ok to due to more sidewall flex. the drag radials are not so forgiving, I have seen them break the shaft and pull apart on the street. We sell braces that tie the diff. to the tranny and avoid the braking. The short shaft is not bad at all to break, the long on is bad to break which usually tears the diff. and tranny along with it.

    The upgrades on the Vette are well worth it to me.




    the GTO is hit and miss. we are upgrading one now that has a TVS 1900 with cam. the rear inner stubs, drivshaft, yokes, halfshafts and outer stubs.
    This car is 600 rwhp and needs it IMHO. What power levels you all looking at?

    Thanks,

    Mark

  5. #5
    cutting and welding mark21742's Avatar
    Join Date
    Mar 2008
    Location
    mercersburg pa
    Posts
    6,443

    hugger orange
    2004

    Quote Originally Posted by marksls1ta View Post
    to full slicks they do ok to due to more sidewall flex. the drag radials are not so forgiving, I have seen them break the shaft and pull apart on the street. We sell braces that tie the diff. to the tranny and avoid the braking. The short shaft is not bad at all to break, the long on is bad to break which usually tears the diff. and tranny along with it.

    The upgrades on the Vette are well worth it to me.




    the GTO is hit and miss. we are upgrading one now that has a TVS 1900 with cam. the rear inner stubs, drivshaft, yokes, halfshafts and outer stubs.
    This car is 600 rwhp and needs it IMHO. What power levels you all looking at?

    Thanks,

    Mark
    I "should" be over 400rwhp, never had the car on a dyno, just lots of street tunning.
    ported heads, cam, stage 3 tranny, with all supporting mods......the thing that I am worried about is my 3,800 rpm stall flashing, hooking good and breaking something

  6. #6
    Member marksls1ta's Avatar
    Join Date
    Dec 2006
    Location
    pikeville, kentucky
    Posts
    701

    black
    1998 trans am

    I would recommend the stubs and halfshafts for you. The GTO is heavy and finds weak links rather easy.

    Thanks,

    Mark

  7. #7
    cutting and welding mark21742's Avatar
    Join Date
    Mar 2008
    Location
    mercersburg pa
    Posts
    6,443

    hugger orange
    2004

    Quote Originally Posted by marksls1ta View Post
    I would recommend the stubs and halfshafts for you. The GTO is heavy and finds weak links rather easy.

    Thanks,

    Mark
    thank you mark!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Battery Hold Down - Hold Down Hold Up
    By Ed Blown Vert in forum Firebird / WS6
    Replies: 0
    Last Post: 06-06-2013, 07:20 PM
  2. Question: slicks
    By 99yellowz28 in forum Wheels and Tires
    Replies: 23
    Last Post: 11-07-2010, 11:32 PM
  3. slicks
    By youngun67 in forum Parts For Sale / Trade
    Replies: 21
    Last Post: 10-09-2008, 04:40 PM
  4. Slicks??
    By 2kbluws6 in forum Wheels and Tires
    Replies: 3
    Last Post: 08-03-2008, 09:48 PM
  5. Slicks F/S
    By Hodgesz28 in forum Parts For Sale / Trade
    Replies: 2
    Last Post: 05-20-2008, 12:59 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •