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How much on the butt dyno with LTs and 4.11s

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Old Jun 21, 2018 | 01:50 PM
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Default How much on the butt dyno with LTs and 4.11s

I was going to go cam/lts/tune next summer, but am going to most likely just be done with it early and replace the 10 bolt with a MWC fab 9" with 4.11s. Right now I have a catback LM1, lid, and maybe a tune (can't verify if previous owner tuned). How big of a difference will the car feel after being able to fully utilize the car with the way stronger rear and 4.11s as well as headers and ory pipe and dyno tune? This is on a M6 2002 TA with almost 90k miles. I've had the car for 2 weeks almost now and love it. It's so much faster and connected to the road than my 2014 Charger RT stalled with shift kit.
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Old Jun 21, 2018 | 01:53 PM
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Well rear end/gears dont add power but LTs i say around 15-20 tuned
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Old Jun 21, 2018 | 02:58 PM
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The 4.10's alone will make the car feel a lot peppier
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Old Jun 21, 2018 | 03:13 PM
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Originally Posted by HCI2000SS
The 4.10's alone will make the car feel a lot peppier
Cool that's basically what I was wondering. If it would be worth it to wait on the cam swap until the 10 bolt is replaced with something stronger. It makes it that much more worth it when I can also pick up some perceived feel in addition to the gains from the LTs. I was going to do 4.10s in the 10 bolt, cam, long tubes, tune, but I don't want to be stranded on the road if the 10 bolt decides to give out.
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Old Jun 21, 2018 | 05:34 PM
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One of my cars is cam, slp loudmouth, long tubes, lid, 4:11s and mail order tuned cars been that way for 7 years and have never changed it even after driving my other cars it still puts a smile on my face when i drive it its simple and my butt dyno loves it, if i was you i would throw a cam in it too just dont be stupid and your rearend will last mine is still on stock 10 bolt with multiple trips to the track i just dont do no clutch dumps or let it wheel hops.
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Old Jun 21, 2018 | 05:48 PM
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Originally Posted by King23
One of my cars is cam, slp loudmouth, long tubes, lid, 4:11s and mail order tuned cars been that way for 7 years and have never changed it even after driving my other cars it still puts a smile on my face when i drive it its simple and my butt dyno loves it, if i was you i would throw a cam in it too just dont be stupid and your rearend will last mine is still on stock 10 bolt with multiple trips to the track i just dont do no clutch dumps or let it wheel hops.
See that's my dilemma. I know some people advocate replacement of the 10 bolt before it breaks, but I won't be taking this car to the track any time soon and don't plan on launching on the street. Can the rear still break with shifting hard? I don't want to have to constantly slip the clutch slowly on every shift and would like to shift more aggressive for at least half of the time driving. This isn't my daily vehicle and it will be stored in the 3rd garage stall for the winter. I'm just trying to gauge if I should just swap the cam next summer with supporting mods to get to around 400whp, but also don't want to park the car if it breaks in the summer because that is my only time to drive it all year basically. I unfortuantely won't have all the money to do the 9" swap plus cam/lts next summer unless I just replace with another 10 bolt for cheap.
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Old Jun 21, 2018 | 06:00 PM
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I'm on the stock 10 bolt with 4.10's and t56, with drag radials and about 600 rwhp. I basically baby it on anything but a roll
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Old Jun 21, 2018 | 06:25 PM
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Originally Posted by HCI2000SS
I'm on the stock 10 bolt with 4.10's and t56, with drag radials and about 600 rwhp. I basically baby it on anything but a roll
That's crazy. So in a roll race you are able to shift aggressive though? I don't ever plan on launching this car until the 10 bolt is out.
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Old Jun 21, 2018 | 06:46 PM
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Originally Posted by LS_ELKO41
That's crazy. So in a roll race you are able to shift aggressive though? I don't ever plan on launching this car until the 10 bolt is out.
Yes I shift as fast as I can, and so far so good. I know i'm on borrowed time though lol. Hard launches and wheelhop are the most damaging to the 10 bolt.
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Old Jun 21, 2018 | 06:49 PM
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I would do a cam for now and save for a rear end for later u may never need a new rear end. A cam dont cost that much to do if u donthe work yourself
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Old Jun 21, 2018 | 07:44 PM
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Originally Posted by HCI2000SS
Yes I shift as fast as I can, and so far so good. I know i'm on borrowed time though lol. Hard launches and wheelhop are the most damaging to the 10 bolt.
Good to know.

Originally Posted by one sweet ws6
I would do a cam for now and save for a rear end for later u may never need a new rear end. A cam dont cost that much to do if u donthe work yourself
I'm thinking about going back to doing cam and long tubes plus motor mounts next summer considering the info in this thread. I will be doing the work myself so am figuring about $1100 for the cam kit, $500 for a tune, $500 for SS long tubes, and another couple hundred between motor mounts and a UD pulley. I guess I wouldn't be far off from a rear end with almost $2k left over.
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Old Jun 22, 2018 | 06:45 AM
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I baby mine on the launch or dig but after thst its redline shifting now with that said its still a possibility but drag radial/slicks and hard launches/wheel hop seem to be the buggest killer.
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Old Jun 22, 2018 | 08:26 AM
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Originally Posted by King23
I baby mine on the launch or dig but after thst its redline shifting now with that said its still a possibility but drag radial/slicks and hard launches/wheel hop seem to be the buggest killer.
Thanks. That's more confirmation to just wait on it then.
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Old Jun 22, 2018 | 09:31 PM
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Originally Posted by HCI2000SS
Yes I shift as fast as I can, and so far so good. I know i'm on borrowed time though lol. Hard launches and wheelhop are the most damaging to the 10 bolt.
Agree 100%.
My car only had 418 whp with 4.10's in the stock 10-bolt. Seldom went from a dig but lots of from a roll. No lift power shifts etc the rear held up pretty well. Eventually sounded like a jet engine with the gear whine but it didn't break. Hard launch and wheel hop that breaks them most of the time.

With that said I have a friend that's broken half dozen 10-bolts over the years. He broke several on the street. He is all about big sticky tires and the hard launch.
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