Questions about downshifting - Toyota Yaris Forums

Yaris TTE JWRC · 01-17-2007, 08:30 PM

Quote:

Originally Posted by cleong

Whether the RPM's at 6000rpm on third gear, or 3000rpm in fifth doesn't matter as long as you are doing a sensible speed. Right?

Just remember to rev-match the sucka when you do drop it down the gear, ie, blip the throttle whilst you're in neutral when moving gears across the gate. Clutch replacement is troublesome and costly.

But seriously, normally if where I'm caught in a situation where I'm in fifth gear when I'm really needing third, I'd drop it to fourth to see if it gives enough torque, before I'd drop it again.

I see, thank you , thank you for the info

another thing, doesnt matter what gear nor how many gears i drop, as long as i dont hit the red line im oaky right?? then i need to get an RPM gauge

cleong · 01-17-2007, 08:35 PM

Quote:

Originally Posted by Yaris TTE JWRC

I see, thank you , thank you for the info

another thing, doesnt matter what gear nor how many gears i drop, as long as i dont hit the red line im oaky right?? then i need to get an RPM gauge

Do that. Its a little bit dangerous to find out where your redline is by the pitch of your engine note, especially if you're downshifting. You could bend something inside the engine.

Good thing the dashboard in front of you has acreage for mounting a big 11,000rpm-style rev counter without blocking anything important.

Pars · 01-19-2007, 10:51 PM

back on topic

In my old car (Civic Hatch) it had a tinny engine but huge gearing (at 4000rpms I'm doing 165km/hr). So, top gear acceleration was pathetic, but fuel economy was amazing (5L/100km in both city/hwy...the sohc engine had very good low rpm power).

So, you'd think with the above setup, my car would be pigeon-hole into a mundane driver. Not so, cause there's this thing called double downshift and in the case of my old car, always put the car into the power-band (right rpm). So if you know how to work the shifter, you could get the best of both world, quick engine response or amazing fuel economy. But it ya don't like constantly rowing the shifter and downshifting, it could get cumbersome, to constantly have to downshift in order to dial-up some decent passing power (but in my case, all the downshifting was just plain fun).

Unlike my old Civic, my new Yaris is more practically geared and makes good use of the engine broad mid-range power, without having to downshift. So, dropping 2 gears when you're already doing over 3000rpm (which is most of time) does not return a big enough pay-back to make it worth while. Granted, they'll be those times when loafing around at around 1k-2k rpm and need to get going in a hurry, in which case, double downshift would be ideal.

What would be great! is if the Yaris had a bigger engine (TS's 1.8L) that could comfortably drive six fat gears. It might not be a drag-race setup, but it would make for a much more usable car that's great for low rpm cruising and have more hidden power on tap, if you wanted to work the shifter, when on the go.

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01-19-2007, 10:51 PM	#3
Pars Drives: 07 Yaris Liftback Join Date: Aug 2006 Location: Toronto Posts: 418	back on topic In my old car (Civic Hatch) it had a tinny engine but huge gearing (at 4000rpms I'm doing 165km/hr). So, top gear acceleration was pathetic, but fuel economy was amazing (5L/100km in both city/hwy...the sohc engine had very good low rpm power). So, you'd think with the above setup, my car would be pigeon-hole into a mundane driver. Not so, cause there's this thing called double downshift and in the case of my old car, always put the car into the power-band (right rpm). So if you know how to work the shifter, you could get the best of both world, quick engine response or amazing fuel economy. But it ya don't like constantly rowing the shifter and downshifting, it could get cumbersome, to constantly have to downshift in order to dial-up some decent passing power (but in my case, all the downshifting was just plain fun). Unlike my old Civic, my new Yaris is more practically geared and makes good use of the engine broad mid-range power, without having to downshift. So, dropping 2 gears when you're already doing over 3000rpm (which is most of time) does not return a big enough pay-back to make it worth while. Granted, they'll be those times when loafing around at around 1k-2k rpm and need to get going in a hurry, in which case, double downshift would be ideal. What would be great! is if the Yaris had a bigger engine (TS's 1.8L) that could comfortably drive six fat gears. It might not be a drag-race setup, but it would make for a much more usable car that's great for low rpm cruising and have more hidden power on tap, if you wanted to work the shifter, when on the go.