5spds in 1.4 mi. - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 07-24-2007, 03:01 AM Thread Starter
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5spds in 1.4 mi.

so how bad exactly are the manual trucks in the 1/4? im gettin real good at rowin the gears quick, but not being able to launch with boost and rowing gears seem to slow it down. i rode in a stock 05 duramax w/ an auto an it seemed to pull just as hard as my moderately built cummins 5spd. i know once i hit 4th and 5th gears that it wouldnt matter 5 spd or auto...but an auto is def at advantage in the 1.4 b/c of almost continual boost correct?
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post #2 of 5 (permalink) Old 07-24-2007, 04:42 AM
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I have seen a red and white dually 2wd flat out haul azz with a 5 speed. I think they had it built to slam in gear but it ran 11's if I remember right.

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post #3 of 5 (permalink) Old 07-24-2007, 05:50 AM
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Depends on how crazy you want to get. You can get a short shift kit from BD that will decrease shift time, and then if you have enough torque and run the right clutch for the job, you can launch in 3rd then you only have to shift twice. I have seen manuals that were putting out nice power, 450+ only run a 15.6 However, I don't think the guy was the best driver either.

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post #4 of 5 (permalink) Old 07-24-2007, 12:11 PM
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Yes the auto has a big advantage over a manual. Every time you push your clutch your rpms drop and your turbo whines down then hyou have to build it back up. And the duramax in 05 was 315-325 hp rated at, something like that. So that is why your truck doesnt feel as fast.
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post #5 of 5 (permalink) Old 07-24-2007, 10:30 PM Thread Starter
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i figured that it was the continual drop in rpms. his def felt faster off the line an to maybe 40...and yeah he has 315ish but i would like to think that with my fass150, smarty and juice that i am def somewhere above that. either way, when i hit top end of 3rd gear and then head thru 4th an 5th....he ws blown away. but my truck wont even start right now...so o well.
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