Second gear start (gearheads please read) - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 02-12-2007, 11:07 PM   #21
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Quote:
Originally Posted by ReallyAGXP
but im thinking off the line it would be bada$$ would it not?
It would not. You are giving up your best acceleration gear. Heck, If I had a motor that could be wound up to a gazillion RPM, I'd run first gear the entire quarter!

I'm an old school guy most of the time...maybe even a bit of a dinosour...but there are some problems that have very firmly worked out solutions, tested, re-tested, and tested some more.

If you are putting down enough power to spin the tires on a drag strip, then the goal isn't to limit the power output by dumping the gear ratio. May I suggest the following solution.......


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Old 02-12-2007, 11:11 PM   #22
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Awesome pic Curt and in the kitchen too, gotta luv that
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Old 02-12-2007, 11:17 PM   #23
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hmmmm so it might work... but isnt worth it from what the consensus is..

now since im also old school how about some tips on a FWBO
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Old 02-12-2007, 11:38 PM   #24
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Quote:
Originally Posted by PontiacDad
Awesome pic Curt and in the kitchen too, gotta luv that
Thanks, Momma'* away on a trip to Pennsylvania...no problem sneeking the Micky-T'* into the kitchen, unless the short person who took the picture rats me out...just gotta clean the black marks off the tile floor
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Old 02-12-2007, 11:43 PM   #25
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hahaha short person lol
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Old 02-13-2007, 01:00 AM   #26
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it would be good on a very high horsepower light car or dragster that y the powerglide 2 speed transmission is so popular but for a steet car its the opposite you need the lowest gear my 2 cents and old drag experience
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Old 02-13-2007, 09:10 AM   #27
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Curt, your M/T'* have the same nasty 'dirty' paint in the letters mine did. I don't think mine were ever in the kitchen, but they were in the shower for awhile. And in the living room.

2nd gear start is for severe icy/snowy weather only. Worst thing for performance you can do.
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Old 02-13-2007, 12:02 PM   #28
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No idea for a 4T80, but I've had the second gear start in my car before, it'* just a PCM programming function. If the gear selector was in the 2 position the car would start in second gear, very interesting with a stall torque!

Cheers,
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Old 02-13-2007, 12:18 PM   #29
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The switches Pat is referring to are quite large. I kinda wonder if they don't include the relays/circuitry built into them.
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Old 02-13-2007, 12:20 PM   #30
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Not really likely. The common way of doing this is to simply ground a pin at the PCM, or introduce a resistance across two pins for the signal to change modes.
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