car jerks at downshift

wonton2049 · 12-10-2006, 06:43 PM

delete me

wonton2049 · 12-10-2006, 06:46 PM

....
..

dannyblaze_07 · 12-10-2006, 06:58 PM

why would you down shift to 3rd gear if you're at 5k rpms in 4th?

LightWerkz · 12-10-2006, 07:01 PM

Could it be your heel-toe needs practice?

JustinH · 12-10-2006, 07:18 PM

^ +1

mgsm666 · 12-10-2006, 07:52 PM

^^ agreed...sounds like when you heel toe, your slipping the clutch, but not fully engaging it (maybe resting your foot on the clutch a little too hard), then around 3k it catches, thus the jerking.

Next time you heel toe downshift, MOVE YOUR FOOT...report back as to whether or not this still happens.

~Jesse

purreplayya69 · 12-10-2006, 08:00 PM

Quote:

Originally Posted by dannyblaze_07

why would you down shift to 3rd gear if you're at 5k rpms in 4th?

LOLSTi · 12-10-2006, 08:04 PM

Definitely the car.

But seriously, just work on your technique, it'll smooth out eventually.

SPOOLN STI · 12-11-2006, 04:23 AM

Replace your fluids and report back.

wonton2049 · 12-11-2006, 09:02 PM

as for the heel toe issue, it shouldnt be the issue. been doing it for a while. the brake and gas modulation may not always in perfect sync but its good imo.

lemme try again

scenario.... drving down the road in fourth at about 5.5rpms, hit the brakes, heel toe to third and go through the turn. now as the rpms are dropping mid turn at about 4.5k rpms to 3.5k rpms?, the car does a jerk similar to fuel cutoff or somthing (could it be fuel cut off?). lemme say again, the transition from 4th to third is smooth. after about dropping to about 3k rpms, the car just jerks.

this has happened through similar turns even when im already driving through in third gear (did not downshift or anything.... was already crusing in third). its a bit of a sharp turn and it always happens when the rpms start to drop and get around the 3k range (guesstimate).

wonton2049 · 12-11-2006, 09:05 PM

as for jesse... that cant be my foot resting. as soon as i heel toe, i dont ride the clutch or even cover the clutch after.

any other ideas? you all know how it is!! i cant take this not knowing whats wrong with my car!!!!

wonton2049 · 12-11-2006, 09:11 PM

.....

12-10-2006, 06:43 PM	#1
wonton2049 Amateur STI Driver Car: 05 STI Posts: 27 IWSTI Addict since: May 2006 Trader Rating: (1)	car jerks at downshift delete me This ad is not endorsed by this member. Please register or login to hide this ad. Last edited by wonton2049; 12-12-2006 at 09:24 PM.

12-10-2006, 06:46 PM	#2
wonton2049 Amateur STI Driver Car: 05 STI Posts: 27 IWSTI Addict since: May 2006 Trader Rating: (1)	.... .. Last edited by wonton2049; 12-12-2006 at 09:24 PM.

12-11-2006, 09:11 PM	#12
wonton2049 Amateur STI Driver Car: 05 STI Posts: 27 IWSTI Addict since: May 2006 Trader Rating: (1)	..... This ad is not endorsed by this member. Please register or login to hide this ad. Last edited by wonton2049; 12-12-2006 at 09:23 PM.

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12-10-2006, 06:58 PM	#3
dannyblaze_07 Senior STI Driver Car: '05 Fav Mod: AP Location: Southern California Posts: 342 IWSTI Addict since: Apr 2006 Trader Rating: (1)	why would you down shift to 3rd gear if you're at 5k rpms in 4th?

12-10-2006, 07:01 PM	#4
LightWerkz STI Master Car: E46 M3 Fav Mod: ZCP Wheels Location: Clifton Posts: 7,473 IWSTI Addict since: Aug 2005 Trader Rating: (78)	Could it be your heel-toe needs practice?

12-10-2006, 07:18 PM	#5
JustinH Spec C Club Car: 07 STI OBP Fav Mod: flat black rims Location: laguna niguel Posts: 1,479 IWSTI Addict since: Jul 2006 Trader Rating: (1)	^ +1

12-10-2006, 07:52 PM	#6
mgsm666 Spec C Club Car: 05 Aspen Wingless Fav Mod: Driving School / Trunk swap (no attention ftw) Location: NYC/Boston 4 school Posts: 1,064 IWSTI Addict since: Sep 2006 Trader Rating: (2)	^^ agreed...sounds like when you heel toe, your slipping the clutch, but not fully engaging it (maybe resting your foot on the clutch a little too hard), then around 3k it catches, thus the jerking. Next time you heel toe downshift, MOVE YOUR FOOT...report back as to whether or not this still happens. ~Jesse

12-10-2006, 08:04 PM	#8
LOLSTi S204 Racer Car: RIP 02 WRX Fav Mod: 2004 Aspen White WRX STi Location: Cincinnati Posts: 3,614 IWSTI Addict since: Dec 2005 Trader Rating: (1)	Definitely the car. But seriously, just work on your technique, it'll smooth out eventually.

12-11-2006, 04:23 AM	#9
SPOOLN STI STI Driver Car: 06 STI WHITE Fav Mod: Driver improvement. Location: TAMPA, FL Posts: 255 IWSTI Addict since: Aug 2006 Trader Rating: (0)	Replace your fluids and report back.

12-11-2006, 09:02 PM	#10
wonton2049 Amateur STI Driver Car: 05 STI Posts: 27 IWSTI Addict since: May 2006 Trader Rating: (1)	as for the heel toe issue, it shouldnt be the issue. been doing it for a while. the brake and gas modulation may not always in perfect sync but its good imo. lemme try again scenario.... drving down the road in fourth at about 5.5rpms, hit the brakes, heel toe to third and go through the turn. now as the rpms are dropping mid turn at about 4.5k rpms to 3.5k rpms?, the car does a jerk similar to fuel cutoff or somthing (could it be fuel cut off?). lemme say again, the transition from 4th to third is smooth. after about dropping to about 3k rpms, the car just jerks. this has happened through similar turns even when im already driving through in third gear (did not downshift or anything.... was already crusing in third). its a bit of a sharp turn and it always happens when the rpms start to drop and get around the 3k range (guesstimate).

12-11-2006, 09:05 PM	#11
wonton2049 Amateur STI Driver Car: 05 STI Posts: 27 IWSTI Addict since: May 2006 Trader Rating: (1)	as for jesse... that cant be my foot resting. as soon as i heel toe, i dont ride the clutch or even cover the clutch after. any other ideas? you all know how it is!! i cant take this not knowing whats wrong with my car!!!!