Faster Shifting Tranny - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 02-18-2012, 09:35 PM Thread Starter
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Faster Shifting Tranny

I drove my brothers duramax the other day and it has a edge and it seems to shift really quick and smooth but it still has a firmer shift. Didnt know if it was possible to get my 7.3L transmission to shift a little quicker. In my "HOT" tune when i put it to the floor it shifts at about 3000rpm and i didnt know if it was possible to make it shift at 2300-2600rpm. I have a SunCoast tranny and i was wondering if i could make it shift faster and earlier but still have a firmer shift. Thanks any imput would be GREAT!!

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post #2 of 8 Old 02-18-2012, 10:09 PM
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If your flooring it, why would you want it to shift at 2300RPM?

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post #3 of 8 Old 02-19-2012, 05:05 AM Thread Starter
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I said 2300-2600, I just think if it shifted like my brothers dmax that it would be a faster truck. Also when im at WOT, and before shifting into 3rd and 4th it likes to hesistate at 3000. I would like to get rid of the hesitation in shifting and get a little quicker of a shift

2003 Ford F-250

Custom Intake (AFe airfilter)
TS 6 position Custom Tunes
4in turbo back exhaust 8 inch tip
175cc injectors
s300 on H2e mounting
Autometer Gauges (boost, pyro, trans temp)
HID Nation 35W 8000k HID'S
4inch lift
35 inch Nitto Terra Grapplers
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post #4 of 8 Old 02-19-2012, 05:17 AM
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Quote:
Originally Posted by 2003powerstroke1 View Post
I said 2300-2600, I just think if it shifted like my brothers dmax that it would be a faster truck. Also when im at WOT, and before shifting into 3rd and 4th it likes to hesistate at 3000. I would like to get rid of the hesitation in shifting and get a little quicker of a shift
well theres your problem right there, your wanting a 7.3 to be fast


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post #5 of 8 Old 02-19-2012, 05:22 AM
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Originally Posted by campbellflage View Post
well theres your problem right there, your wanting a 7.3 to be fast
LMAO that was hilarious


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post #6 of 8 Old 02-19-2012, 05:39 AM
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Call your chip maker and have them change your shift points.. And get a modded trans valve body.. It will firm up your shifts also get a better torque converter so it will hold better.. i can chirp my tires going into 2nd if i get on it hard. I only have a dp with 80hp tune and a john woods torque converter with his modded valve body.. Jody at dp worKed my shift points and my truck isnt fast nor do i drive it fast.. It just shifts quick and tight for towing.. again its a 7.3, not a duramax.. 2 differnt trucks..
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post #7 of 8 Old 02-19-2012, 05:47 AM
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Quote:
Originally Posted by zooterboy View Post
Call your chip maker and have them change your shift points.. And get a modded trans valve body.. It will firm up your shifts also get a better torque converter so it will hold better.. i can chirp my tires going into 2nd if i get on it hard. I only have a dp with 80hp tune and a john woods torque converter with his modded valve body.. Jody at dp worKed my shift points and my truck isnt fast nor do i drive it fast.. It just shifts quick and tight for towing.. again its a 7.3, not a duramax.. 2 differnt trucks..
Pretty sure he said he had a suncoast trans, he should be good with the valve body and converter, but your right the tunes probably could be tweeked.


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
Sound Mods: 7" flip out tv, 3-way speakers all around, 12" sub, 500 watt amp.
Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

Next up power rear window
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post #8 of 8 Old 02-19-2012, 06:03 AM
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sorry missed that.. then yes his tuner would have to be tweaked..
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