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1. It's how much the engine revs up when you downshift that matters.
- if you're downshifting from a very high speed into 4th gear from 5th, you're probably doing more damage, (although blipping the throttle helps here)
- with more transmission gears that have closer sequential ratios, the engine speed differential between say 6th gear and 5th gear at a given vehicle speed is lower, causing less wear on the transmission parts. Now if you have a 4 speed manual, the differential is higher, causing more wear.
2. The engine has inertia from its spinning so disengaging the clutch and using the brakes may allow the fastest stops because it disconnects the wheels from the engine.
- this way you don't hurt the transmission (although would it hurt the clutch(?)), and you brake more quickly.
One question... how does downshifting affect an automatic tranny adversely?
posted by 12.47.84...
Posts in this Thread:
- The Downshifting Debate, Sebastian, Fri, 9 Sep 2005 00:18:27
- Two things and a question about automatic trannies, Caarma
, Mon, 12 Sep 2005 10:43:36 <-- Viewing This Message - Re: The Downshifting Debate, dave, Sat, 10 Sep 2005 06:54:30
- Re: The Downshifting Debate, SeeVTSaab, Fri, 9 Sep 2005 13:42:36
- 4 wheel vs. 2 wheel braking, ChuckD
, Fri, 9 Sep 2005 12:45:21 - Re: The Downshifting Debate, Al S, Fri, 9 Sep 2005 09:52:06
- My test bed was a new 1985 Jeep..., Crispin, Fri, 9 Sep 2005 07:57:40
- Re: The Downshifting Debate, SC_Aero, Fri, 9 Sep 2005 07:19:50
- No -- Brakes are cheaper to fix than Clutches :), Canadian_Saab, Fri, 9 Sep 2005 05:46:42
- Re: The Downshifting Debate, OKSaabs, Fri, 9 Sep 2005 05:32:11
- Re: The Downshifting Debate, jp, Fri, 9 Sep 2005 04:40:47
- Coasting..., AlexP, Fri, 9 Sep 2005 04:36:15
- I constantly downshift, NickR, Fri, 9 Sep 2005 04:08:24
- I do - but that doesn't make it right... :-), WMiller, Fri, 9 Sep 2005 02:18:45
- I'm with you.., Flyer
, Fri, 9 Sep 2005 02:12:23
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