My truck is SO much slower with 4l80
#24
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Originally Posted by nightrunner
uhhh, why do you have a non-locking TC?
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I would have thought that a 3200 stall would make up for the **** 1st gear. Is it real tight, does it actually stall to 3200? Maybe a little more stall would help. Just an idea. Fuddle claims my truck would jump out the hole with a 3200. (comparing to my stock converter of course)
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no, it locks up in late 3rd and 4th, i love the converter with the less rpm drop. It brake stalls at 2600/2700, i thought it would brake stall at 3200 but Dave said there's a difference between brake and flash stall. It does not jump out of the whole, it barely chirps my tires, of course i have 22's with 10" wide nittos. I thought it would make up for 1st gear as well, but not quite obviously.
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My stock 4l80 converter Brake stalls to 2600 and flashes a little higher than that. I also can do a little better than a chirp when flashed and can roll them over pretty good with a brake stall. Sounds like your converter is much tighter than needed. I would want mine to brake stall higher than a factory TC.
#29
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I think a big shot of nitrous or supercharger would change your opinion of the 4L80E,a shorter than stock tire will help some.The 2.75 low gear planetaries will not work in a late model 4L80E,unless you go full manual.I ran 4.56gears for a while,they help with the launch,but kill fuel economy,4.10s are a more realistic option.The only real solution is to make enough torque to overcome the tall first gear,mine will light the tires from a 30mph punch and the closer gear ratios actually help after first gear.
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Originally Posted by whitt1
I think a big shot of nitrous or supercharger would change your opinion of the 4L80E,a shorter than stock tire will help some.The 2.75 low gear planetaries will not work in a late model 4L80E,unless you go full manual.I ran 4.56gears for a while,they help with the launch,but kill fuel economy,4.10s are a more realistic option.The only real solution is to make enough torque to overcome the tall first gear,mine will light the tires from a 30mph punch and the closer gear ratios actually help after first gear.