From 6th gear back into 3rd gear a bad idea? - Page 3 - Ford Mustang Forum
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Been driving manuals since 16...ONLY auto trans I have ever owned are work trucks.I agree with above, nothing like a manual trans,you become one with the car and it's power band
My current '11 GTCS is a 6 speed manual with 3:55...cruising on the highway in 6th gear is a pleasure, if I need to get out of a situation,I shift down to 5th ( ample power) or slip into 4th (gobs of torque and pickup) and be done... blimp the throttle,rev match and it's as smooth as butter.
"U" maneuver into 4th from 6th is just very intuitive with these centering springs and plenty of "get up and go" in 4th,don't think I ever needed 3rd with this V8!!!


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I do the 6th to 3rd, but I have the V6 and 2.73's. I can see how the 5.0 and stiffer gears, this would be fun, but could cause a need to change your shorts moment, 6th to 4th would seem to be the better choice for the 5.0


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Quote:
Originally Posted by magnido45 View Post
There's been a handful of occassions where I was cruising at 65mph on the freeway...only to have to put it into 3rd gear to avoid getting sandwiched or hit by someone changing lanes into me...will this practice kill my tranny? Or is there a better way to accelerate out of a jam?
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Originally Posted by Grimace427 View Post
It won't necessarily do any harm to the trans, however I wouldn't recommend it due to the chance it could cause the rear tires to lose traction and as a result you the driver losing control of the car. Going from 6th to 3rd causes a huge change in engine speed which could overwhelm tire grip. I recommend 6th to 5th.
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Originally Posted by C Green View Post
I agree on the loss of tire grip..mine chirps when I do it. I have been going back to 3rd on manual mustangs for years, they were all 5 spds and not 6, but when I started driving this new coyote with 6 I just started doing it out of habit..she really jumps with 3.73s at 60 mph.
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Originally Posted by 46Tbird View Post
This is something I do every day, either as a way to maneuver in traffic or just something to amuse myself. I have drag radials so I don't know these traction issues you guys are talking about.
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Originally Posted by Jazzcat View Post
Dropping into 3rd with the 2012 and prior auto seems to be common practice. Wonder if the tire traction issues still apply. So far I've had no close calls.
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Originally Posted by Nibis View Post
I do the 6th to 3rd, but I have the V6 and 2.73's. I can see how the 5.0 and stiffer gears, this would be fun, but could cause a need to change your shorts moment, 6th to 4th would seem to be the better choice for the 5.0
Hello members,

As per my Technical Specialist, it’s possible to damage the clutch or synchronizer if the transmission is downshifted at too high of a speed. He recommends not doing such a drastic downshift. Instead try 6th-4th or 6th-5th. The larger the change in RPMs, the greater the chance of damage to the driveline. I hope this helps.

Deysha
 
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Quote:
Originally Posted by Elite_Deforce View Post
Depends how far down you are going, but I would imagine 4th would be fine if you can handle it. There is nothing wrong with 3rd though, just be sure to rev match.

Others: what is this loss of traction you speak of??? Ride the clutch much?
I think the loss of traction they are referring to would be the skidding you would experience if you don't rev match that shift. And 6 - 3 would take a significant rev match. Agreed, 6 - 4 is a better choice IMO.
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If I'm passing someone I often just use 5th...4th if I want a little fun...and 3rd to really blow my skirt up

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While I'm shifting from 6th to 3rd, I simply floor the throttle. By the time I get into 3rd and let off the clutch, the engine is either at the right RPM or slightly higher. If I genuinely need to accelerate out of a bad situation, it's a pretty good rev match.

If I want to put on a show I'll wait an extra beat to let the clutch out. Nothing opens eyes on would-be challengers like watching a car peel out on dry pavement going 55mph! I usually warn my wife if she's in the car by saying, "Slingshot... engage."

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Quote:
Originally Posted by FordCustSrvc View Post
Hello members,

As per my Technical Specialist, it’s possible to damage the clutch or synchronizer if the transmission is downshifted at too high of a speed. He recommends not doing such a drastic downshift. Instead try 6th-4th or 6th-5th. The larger the change in RPMs, the greater the chance of damage to the driveline. I hope this helps.

Deysha
Maybe if you're a klutz. Proper rev-matching, in theory, eliminates any undue shock to the driveline.


I know a guy who used to race RX-8's...he was getting on his co-driver's case for skipping shifts while downshifting for a corner (his footwork wasn't fast enough, I guess). Something about how the synchros in the glass tranny in that car didn't take well to this technique. But that is under racing conditions, a few times a lap over more than a hundred laps. I can't see how the occasional 6th to 3rd downshift to blast past some trucks would lead to lasting damage. Unless you're a klutz.

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post #38 of 40 (permalink) Old 11-27-2012 Thread Starter
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Quote:
Originally Posted by FordCustSrvc View Post
Hello members,

As per my Technical Specialist, its possible to damage the clutch or synchronizer if the transmission is downshifted at too high of a speed. He recommends not doing such a drastic downshift. Instead try 6th-4th or 6th-5th. The larger the change in RPMs, the greater the chance of damage to the driveline. I hope this helps.

Deysha
Thanks for chiming in, Deysha!

Last edited by magnido45; 11-27-2012 at 01:00 PM. Reason: mistype
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Quote:
Originally Posted by stevegt2012 View Post
I think the loss of traction they are referring to would be the skidding you would experience if you don't rev match that shift. And 6 - 3 would take a significant rev match. Agreed, 6 - 4 is a better choice IMO.
This is what I was thinking, made me facepalm if that was the case.

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Originally Posted by magnido45 View Post
Thanks for chiming in, Deysha!
Anytime, magnido45!

Deysha
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