LSD / No tru-trac
Thread Starter
4th Gear
Joined: May 2024
Posts: 4
Likes: 0
LSD / No tru-trac
Hello all. I'm in the hunt for a C6 Auto. I know they come with LSD. I plan on doing some bracket racing at my local tracks. My question is, for those of you who do some drag racing with your C6, do you just rely on your factory LSD? I'm only asking because my previous bracket racing cars were able to run the Eaton Tru Trac Differential and I see that the vettes of this era don't have that option.
Thanks,
Jay Dee
Thanks,
Jay Dee
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,629
OEM diff clutch packs, with Oem fluid, if clutch packs are still good, will have 100ftlb break alway values.
If clutch packs are still good, and using the correct fluid, will not have problems with peg leg burn outs, and will hold the tires locked together for the amount that the diff can take in torque. Hence where you start to see peg leg burn outs, is when diff fluid is change to slicker fluids, and in which lowers the break away values of the clutch packs.
If game plan is to build a 8 second 1/4 mile car, all is mute, since drive line will need to be stripped out,and diff replaced with solid diff (ford 9") that can take the increased G launch out of the hole. Hence the money your going to spend on putting down a sub 10 second 1/4 mile in a C6, will have spent hale to build a 8 second car like a Vega instead.
If clutch packs are still good, and using the correct fluid, will not have problems with peg leg burn outs, and will hold the tires locked together for the amount that the diff can take in torque. Hence where you start to see peg leg burn outs, is when diff fluid is change to slicker fluids, and in which lowers the break away values of the clutch packs.
If game plan is to build a 8 second 1/4 mile car, all is mute, since drive line will need to be stripped out,and diff replaced with solid diff (ford 9") that can take the increased G launch out of the hole. Hence the money your going to spend on putting down a sub 10 second 1/4 mile in a C6, will have spent hale to build a 8 second car like a Vega instead.
Le Mans Master
Joined: Dec 2013
Posts: 6,337
Likes: 5,112
From: Charles Town WV
2024 Corvette of the Year Finalist - Modified
2023 C6 of the Year Winner - Modified
2022 C6 of the Year Finalist - Modified
No you dont need a 9 inch or a solid diff... guys going 8s all day long on factory style built differentials from RPM or other builders. Mark Carlyle has (*or had for a long time) the stock IRS record for years on a factory style case (built obviously). OP what are your power goals/projected ET? I'd say run your stock **** till it breaks then go to an RPM unit. Talk to Jeremy, theyll get you hooked up.
https://rpmtransmissions.com/
