Proper way to down shift?

happytheman

Perhaps changing the flywheel with a lighter one might give you what you're looking for?

kenchan

It might, but I would rather flash the ECU if there's a simple fix for this. Maybe UpRev?

happytheman

Will it even let you downshift while up to speed? My Toyota Matrix XRS wouldn't let me downshift into first until at a standstill.

happytheman

You're going to flash your what?

kenchan

I regret I replied...

happytheman

Ummmm, sorry dude!

TheGreatOne

I put my GTR button in a couple days ago, and I didn't put the shifter ring back properly, so it was on the SRM button....I hated it off. When I down shifted I heard NOTHING.

I literally stopped on the side of the road in a panic, used my house keys to prop the ring up and made sure I could the SRM on.

I'm probably too spoiled now because I just mash the clutch and downshift no matter how fast I'm going lol....and it comes out pretty damn perfect every time...and with the F.I., sounds so mean

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2008 E60 M5 - SOLD
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Fire

OK here goes, flick the down paddle shifter and bingo a down shift. Cannot make a downshift any simpler.

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2012 Chevy Camaro ZL1 6MT coupe Back N' Black. 680hp

wilsonp

The 7AT is very aggressive - as long as the revs will be below redline, it will let you downshift. It also won't let revs drop too low, it downshifts automatically if that will happen, though unfortunately without DRM, all the way down to first. Even in full auto, it will downshift and run revs up to 6500-7000 with no problem if you floor it.

I think manually downshifting depends on what you are about to do:

If you are coming to a complete stop, let it drop gears automatically unless you just want to hear it rev - then be careful as DRM can cause you to hold speed when you are trying to stop, and it is easy to downshift late since their is a lag and end up two gears down.

If you are slowing down for a corner, and want to accelerate out, downshift to keep revs above about 3500 RPM - the torque curve is practically flat from 3000 to redline in most gears, so you will have close to maximu torque available for acceleration.

If you are pulling out into traffic and want maximum acceleration, downshift as low as possible and floor it - I normally drop from 5th to third coming onto the highway with a 65MPH speed limit when I see it's clear, I'm going about 45-55 before I downshift.

The racing rule for downshifting is to drop to the lowest gear that will keep you below redline through the curve so you can accelerate out of the curve without an upshift.

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chops

from what ive been told you're not supposed to downshift into 1st ever, as 1st doesnt have synchros, (or it does but you ruin them). regardless, i do it all the time in parking lots/speed bumps. before rolling over a speed bump @ 1-2mph, ill quickly double clutch and throw it into 1st without an issue. i never force the shifter into any gear! if you feel any resistance, its usually because you're doing something you're not supposed to

DJ-of-E

I've already making a habit of double clutching for the same reason, the less the force when shifting gears. I even clutch in a bit to shift to neutral.

kenchan

Next op's question... how do I double clutch on my AT?

flashburn

7AT owners...

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Current Ride: 2012 Chevrolet Corvette Grand Sport Centennial Edition Carbon Flash 6M
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Red__Zed

It's not the flywheel, it's how the DBW is implemented. My old Civic SI had it as well, albeit to a lesser extent.