Automatic 2-1 rough downshifting

juan05 · 04-14-2009, 08:49 PM

thats why you get maual lol jk idk contact your dealer

wstar · 04-14-2009, 09:20 PM

This is going to be a very subjective thing, which is why we get conflicting reports about people feeling it or not, and whether they feel it only in M or only in D, etc. Aside from varying sensitivities in general, it depends greatly on the speed curve you're decelerating at with the brakes (or just coasting down at), and the force you're applying with the brakes at the time of the downshift.

If you get your speed down well in advance of a light (like you're trying to roll and wait for it go green and never stop, for instance), and then get off the brakes around 20mph and just let it coast all the way down from there to the 2-1 shiftpoint on its own in M-mode, you'll feel it for sure.

Venom · 05-15-2011, 08:43 PM

Mine AT does the same thing....the downshift into lower gears isnt as smooth as id like it to be. I dont notice it at all when I put it into normal drive mode.

wstar · 05-15-2011, 09:48 PM

It only does this when you let it downshift for you, because you've gone way below useful RPMs. IMHO, either downshift earlier and stay in a useful band, or if you're coasting down to a stop gently just pop it into D or N.

PapoZalsa · 05-15-2011, 09:53 PM

Quote:

Originally Posted by Venom

Mine AT does the same thing....the downshift into lower gears isnt as smooth as id like it to be. I dont notice it at all when I put it into normal drive mode.

You know you resurrected this thread from 2009.

04-14-2009, 09:20 PM	#2 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3596	This is going to be a very subjective thing, which is why we get conflicting reports about people feeling it or not, and whether they feel it only in M or only in D, etc. Aside from varying sensitivities in general, it depends greatly on the speed curve you're decelerating at with the brakes (or just coasting down at), and the force you're applying with the brakes at the time of the downshift. If you get your speed down well in advance of a light (like you're trying to roll and wait for it go green and never stop, for instance), and then get off the brakes around 20mph and just let it coast all the way down from there to the 2-1 shiftpoint on its own in M-mode, you'll feel it for sure. __________________ 7AT Track Car! Journal thread / Car setup details

05-15-2011, 09:48 PM	#4 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3596	It only does this when you let it downshift for you, because you've gone way below useful RPMs. IMHO, either downshift earlier and stay in a useful band, or if you're coasting down to a stop gently just pop it into D or N. __________________ 7AT Track Car! Journal thread / Car setup details

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04-14-2009, 08:49 PM	#1 (permalink)
juan05 Enthusiast Member Join Date: Apr 2009 Location: west palm beach Posts: 372 Drives: nismo 370z black. Rep Power: 18	thats why you get maual lol jk idk contact your dealer

05-15-2011, 08:43 PM	#3 (permalink)
Venom Base Member Join Date: Apr 2011 Location: Wilmington Posts: 3 Drives: Black 370Z Touring Rep Power: 16	Mine AT does the same thing....the downshift into lower gears isnt as smooth as id like it to be. I dont notice it at all when I put it into normal drive mode.