Accidentally downshifted to first at 40mph - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

slowbrz · 12-17-2012, 01:45 PM

is this bad? I tried downshifting to third but went too far left

lantsalot · 12-17-2012, 01:48 PM

how did you even get it into gear? i almost can't put it back in first unless i'm completely stopped...

rapidcars · 12-17-2012, 01:49 PM

You should be ok. 40mph shouldn't have revved the engine too much into the redline. Just don't make a habit of it.

microbionic · 12-17-2012, 01:49 PM

Certainly could not be good.

OrbitalEllipses · 12-17-2012, 01:50 PM

Not good. I did something similar on a right rand sweeper on some back roads and the only thing that happened was the rear stepped out and I fought to get control of the car; I felt it as soon as I let the clutch out a little bit and then in an instant the rear just snapped out. It happens, remember to push the clutch in and steer the car straight.

Sportsguy83 · 12-17-2012, 01:50 PM

Quote:

Originally Posted by slowbrz

is this bad? I tried downshifting to third but went too far left

A history of caution to you. Many years ago I accidentally downshifted from 3rd @ 90 mph to 2nd. Poor Civic revved to over 10K. The least offensive thing that happened was two pistons melting... (True Story)

Grimlock · 12-17-2012, 01:52 PM

Did you push the clutch back in before you over-rev'd the engine? If so, you're safe. You probably just got a little extra wear on your transmission synchros by having 1st gear spin up that quickly.

This chart says that the max speed in first gear (at 7400 rpms) is 36 mph. If you were going faster than that and you let your engine over-rev, then you might have damaged something; probably your valves.

http://media.caranddriver.com/files/...napoleon-1.pdf

The best thing for you to do now is to simply drive your car and see if you notice and issues. If not, you're good to go.

slowbrz · 12-17-2012, 01:55 PM

I remember seeing a yellow light but not sure what light this is. I quickly downshifted to 2nd but I should have gone up to 3rd.

how much mph can you go in first at 7500rpm?

Asphalt~86 · 12-17-2012, 01:56 PM

hopefully you double clutched

OrbitalEllipses · 12-17-2012, 01:57 PM

Quote:

Originally Posted by slowbrz

I remember seeing a yellow light but not sure what light this is. I quickly downshifted to 2nd but I should have gone up to 3rd.

how much mph can you go in first at 7500rpm?

Slip light most likely, I'm more than confident you broke the tires loose. As Grim just said, it's around 36mph.

TRD-FRS · 12-17-2012, 01:57 PM

I don't know about others, but even if I try, I can't go downshift to 1st gear until I down to 5km/hr with my car. However I did once when I was doing 110km/hr to 3rd gear, that was when I first got my car and first driving manual.

GTB/ZR-1 · 12-17-2012, 01:57 PM

It didn't blow up instantly? J/K...

It should be good, but problems may arise. Drive without the radio on & listen if anything sounds odd. Good luck...

whtchocla7e · 12-17-2012, 01:58 PM

Anyone have a link to the chart showing what the max speed in each gear is?

Grimlock · 12-17-2012, 02:02 PM

Quote:

Originally Posted by Grimlock

Did you push the clutch back in before you over-rev'd the engine? If so, you're safe. You probably just got a little extra wear on your transmission synchros by having 1st gear spin up that quickly.

This chart says that the max speed in first gear (at 7400 rpms) is 36 mph. If you were going faster than that and you let your engine over-rev, then you might have damaged something; probably your valves.

http://media.caranddriver.com/files/...napoleon-1.pdf

The best thing for you to do now is to simply drive your car and see if you notice and issues. If not, you're good to go.

Quote:

Originally Posted by whtchocla7e

Anyone have a link to the chart showing what the max speed in each gear is?

I posted a link to the chart several posts up.

12-17-2012, 01:45 PM	#1
slowbrz Senior Member Join Date: Oct 2012 Drives: '13 black BRZ MT Location: Cali Posts: 153 Thanks: 60 Thanked 17 Times in 12 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Accidentally downshifted to first at 40mph is this bad? I tried downshifting to third but went too far left

12-17-2012, 01:49 PM	#3
rapidcars Senior Member Join Date: Aug 2012 Drives: 2013 DGM BRZ Limited Location: Long Island, NY Posts: 212 Thanks: 150 Thanked 111 Times in 59 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	You should be ok. 40mph shouldn't have revved the engine too much into the redline. Just don't make a habit of it. __________________

12-17-2012, 01:58 PM	#13
whtchocla7e Senior Member Join Date: May 2012 Drives: 2013 FR-S Hot Lava Location: CT Posts: 424 Thanks: 30 Thanked 222 Times in 81 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Anyone have a link to the chart showing what the max speed in each gear is? __________________ Live to drive another day

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12-17-2012, 01:48 PM	#2
lantsalot Derp Join Date: Dec 2012 Drives: 2013 Scion FR-S Location: AZ Posts: 308 Thanks: 1,093 Thanked 220 Times in 108 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	how did you even get it into gear? i almost can't put it back in first unless i'm completely stopped...

12-17-2012, 01:49 PM	#4
microbionic Senior Member Join Date: Nov 2012 Drives: 2013 Subaru BRZ Location: NE Ohio Posts: 248 Thanks: 452 Thanked 146 Times in 77 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Certainly could not be good.

12-17-2012, 01:50 PM	#5
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,889 Times in 2,902 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Not good. I did something similar on a right rand sweeper on some back roads and the only thing that happened was the rear stepped out and I fought to get control of the car; I felt it as soon as I let the clutch out a little bit and then in an instant the rear just snapped out. It happens, remember to push the clutch in and steer the car straight.

12-17-2012, 01:52 PM	#7
Grimlock Senior Member Join Date: Dec 2011 Drives: BRZ and NA Location: Annapolis, MD Posts: 878 Thanks: 46 Thanked 270 Times in 167 Posts Mentioned: 11 Post(s) Tagged: 2 Thread(s)	Did you push the clutch back in before you over-rev'd the engine? If so, you're safe. You probably just got a little extra wear on your transmission synchros by having 1st gear spin up that quickly. This chart says that the max speed in first gear (at 7400 rpms) is 36 mph. If you were going faster than that and you let your engine over-rev, then you might have damaged something; probably your valves. http://media.caranddriver.com/files/...napoleon-1.pdf The best thing for you to do now is to simply drive your car and see if you notice and issues. If not, you're good to go.

12-17-2012, 01:55 PM	#8
slowbrz Senior Member Join Date: Oct 2012 Drives: '13 black BRZ MT Location: Cali Posts: 153 Thanks: 60 Thanked 17 Times in 12 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I remember seeing a yellow light but not sure what light this is. I quickly downshifted to 2nd but I should have gone up to 3rd. how much mph can you go in first at 7500rpm?

12-17-2012, 01:56 PM	#9
Asphalt~86 Banned Join Date: Oct 2012 Drives: Asphalt AT Location: Midwest Posts: 813 Thanks: 324 Thanked 608 Times in 262 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	hopefully you double clutched

12-17-2012, 01:57 PM	#11
TRD-FRS Member Join Date: Aug 2012 Drives: Made In Japan Location: Canada Posts: 29 Thanks: 3 Thanked 6 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I don't know about others, but even if I try, I can't go downshift to 1st gear until I down to 5km/hr with my car. However I did once when I was doing 110km/hr to 3rd gear, that was when I first got my car and first driving manual.

12-17-2012, 01:57 PM	#12
GTB/ZR-1 Senior Member Join Date: Oct 2012 Drives: '13 BRZ in WRB--let's mod!!! Location: Central, FL Posts: 1,224 Thanks: 317 Thanked 449 Times in 262 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	It didn't blow up instantly? J/K... It should be good, but problems may arise. Drive without the radio on & listen if anything sounds odd. Good luck...

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