Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
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View Poll Results: 1/4 times after swap
1-2 tenths better
9
56.25%
3 or more better
0
0%
1-2 tenths slower
6
37.50%
3 or more slower
1
6.25%
Voters: 16. You may not vote on this poll

4l60e to 4l80e 1/4 Mile Times

Old 10-21-2012, 12:10 PM
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Originally Posted by s346k
there was a bit of sarcasm in my post. i've personally seen 3 cars do this swap. all went slower. the only cases i've seen quicker/faster results are when using a transbrake or high hp cars (130+). for a stock short car making max of 450 whp i haven't seen any gains.

that is my "personal experience". in this guy's case. trapping 117 beforehand. my experience tells me he will go slower. really won't know until it's done. rarely anything dealing with mods is easy to determine.
Fair enough. Was there any other variables during the swap? Or just a swap out with same stall? Stall speed that is.
Old 10-22-2012, 10:53 AM
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Was hopping to see more feedback on this as I'm gettein ready to remove the T56.And was woundering what kind on results I would see with a Jakes 80 and a 3600-3800 stall and maybe 3:73 gears.

Currently NA 440 rwhp 410 rwt 4:30 gears 12 bolt, race weight w/driver 3300 average 1.6 60' 1.5's runs 11.4 @ 121 in 4Th gear at the 1/8 mile shifting at 6800. @ 3800' DA 28" tall tire.
Old 10-22-2012, 12:59 PM
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I went from running a 7.9x in the 1/8 (had to baby it out of the hole because of a 10 bolt) with a Trex cam (cam only) to running 8.15 in the 1/8 with a stock LS1 cam and a 4L80E (3500 stall). 3.73 gears for both.
Old 10-23-2012, 07:31 PM
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I lost .2 with a stock ls1 and a trex from my t56
Old 01-03-2013, 10:27 PM
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Im also swapping to a 80e soon, lets see how it goes at the track.


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