GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Manually Shifting our Automatics

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Old 12/8/05, 07:32 PM
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Originally posted by GhostGT@December 8, 2005, 5:40 PM
Wow thanks for all the helpful comments you guys. I have definitely started to cut back on the manual shifting. Again, thanks for the comments.

Turn2, its not a bad idea to downshift when going down hills. Thats a good thing to do sometimes, but my problem is WANTING to shift all the time.
Well my question is why didn't you get a manual??
Old 12/8/05, 07:52 PM
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Originally posted by Boltzman@December 8, 2005, 8:35 PM
Well my question is why didn't you get a manual??


That's not something I really had control over. While looking for a car with my parents, I decided I really really wanted Sonic Blue. This one that we found in Northern Cali was the only Sonic Blue at dealerships and was rumored to be the last Sonic Blue made for the 2005 model year for dealers (I don't think its true, but who knows.)

Anyway, it was an automatic. A month before that, I was really close to getting a Torch Red Saleen that was a 5 speed, and my dad allowed it. However, this car was a perfect beast, and I didn't really care much if it was stick or auto. For sure, though, my next car will be a stick (or SMG...depending on which route I take ).
Old 12/8/05, 08:19 PM
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You have an awesome ride.Keep us informed of your future mods too!
Old 12/8/05, 08:21 PM
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Originally posted by Boltzman@December 8, 2005, 9:22 PM
You have an awesome ride.Keep us informed of your future mods too!


Thanks so much Boltzman! Your's is killer too!
Old 12/8/05, 10:20 PM
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Chris, I'd start a savings plan now so when your tranny needs a rebuild you will be in good shape. Or you could use the savings to buy a new manual.
Old 12/8/05, 10:32 PM
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Porkster i think you are on the right track. That is very possible.. Thats what my guess would be.
Old 12/8/05, 10:40 PM
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Originally posted by DanG@December 8, 2005, 6:36 AM
You can shift it manually, but the problem comes from taking your foot off the gas before shifting. While "under way" the drivetrain is under load, when you take your foot off the gas, it "unloads", then the auto shifts ( very hard & fast) which shocks the driveline back under load. Manual trannys don't shock when when they shift, because they are controlled with a clutch assembly.Downshifting with an auto may not be the best thing either, back in the C-4 automatic days, builders thought that every downshift would cost one up shift in the life of the tranny...
HTH,
Dan
Give that man a cigar for the correct answer But when I was Chris's age I had a 360 H.P. 66 Fastback with a stock C-4 and upshifted and downshifted to my hearts content without any problems all the way up to 100,000 miles when I sold it, so I don't know about that downshifting myth.

And I swear we've told you this before Chris...don't feather your throttle if your manually shifting :nono:

HOWEVER.... doing it all the time will confuse the crap out of it with it's "learning" capability.

I manually shift it when I'm driving twisting mountain roads and having fun. I'll hold it in gear and keep the motor in the powerband between 3-5k rpms. Better acceleration and engine braking under those conditions. If I'm just tooling around town, it's in "D" with overdrive off. On the highway in "D" with overdrive on.

For the manual valve body question, there is no valve body in these beasts, everything is under computer control.
Old 12/9/05, 02:37 AM
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Originally posted by SixtySix@December 8, 2005, 11:43 PM
Give that man a cigar for the correct answer But when I was Chris's age I had a 360 H.P. 66 Fastback with a stock C-4 and upshifted and downshifted to my hearts content without any problems all the way up to 100,000 miles when I sold it, so I don't know about that downshifting myth.

And I swear we've told you this before Chris...don't feather your throttle if your manually shifting :nono:

HOWEVER.... doing it all the time will confuse the crap out of it with it's "learning" capability.

I manually shift it when I'm driving twisting mountain roads and having fun. I'll hold it in gear and keep the motor in the powerband between 3-5k rpms. Better acceleration and engine braking under those conditions. If I'm just tooling around town, it's in "D" with overdrive off. On the highway in "D" with overdrive on.

For the manual valve body question, there is no valve body in these beasts, everything is under computer control.

Yea, over the last few days I've kept my manual shifting to a bare minimum of 5% of my daily driving time. I'll also not feather the throttle anymore...
Old 12/9/05, 03:15 AM
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Originally posted by GhostGT@December 9, 2005, 3:55 AM
For sure, though, my next car will be a stick (or SMG...depending on which route I take ).
...and what SMG route could that be?
Old 12/9/05, 01:56 PM
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Originally posted by SixtySix@December 9, 2005, 1:43 AM
Give that man a cigar for the correct answer But when I was Chris's age I had a 360 H.P. 66 Fastback with a stock C-4 and upshifted and downshifted to my hearts content without any problems all the way up to 100,000 miles when I sold it, so I don't know about that downshifting myth.

And I swear we've told you this before Chris...don't feather your throttle if your manually shifting :nono:

HOWEVER.... doing it all the time will confuse the crap out of it with it's "learning" capability.

I manually shift it when I'm driving twisting mountain roads and having fun. I'll hold it in gear and keep the motor in the powerband between 3-5k rpms. Better acceleration and engine braking under those conditions. If I'm just tooling around town, it's in "D" with overdrive off. On the highway in "D" with overdrive on.

For the manual valve body question, there is no valve body in these beasts, everything is under computer control.

Tony, I do the exact same thing! The only time I shift manually is when I feel frisky at a stoplight. I start in 1st, wind it up to about 3500-4000 then just shift it into D and it does the rest. Not really shifting manually, but it's fun and reminds me of twenty years ago. And I don't back off the pedal.

I only got the auto because the area in which I work (Tysons Corner, for you DC crowd) is a traffic nightmare, and I didn't want to replace my clutch twice a year.....
Old 12/9/05, 05:27 PM
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stop doing that

i did that to my 96 mustang i got at 32k and around 110k boom entire tranny was blown.. not a single good part left .. 2000 bucks

not worth it.. i know ud like the Tbirds shifter but alas we cannot..darn you traffic!!!!
Old 12/9/05, 10:05 PM
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Originally posted by Louie@December 9, 2005, 4:18 AM
...and what SMG route could that be?







/// Fill in the rest...



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