Bottoming out while heavy breaking/turning - Toyota Yaris Forums

regal · 06-06-2009, 12:22 AM

I had gone over a curb, they replced everything from th oil pan to the xmember to the entire exhaust.

I'm on TRD springs, Tokico Blue hock, TRD reaer Sway.

Under very fast heavy braking I sometimes feel something like the tranny bottoming out/grinding. Toyota dealer offered to look at it but they just usually baby drive. Do you thik I am just pushing the limits of the TRD springs?

Its really not repeatable, only happens under the worst abuse, do you thik it is worth a trip back to the colllision center?

taKuto · 06-06-2009, 12:32 AM

time for a stiffer setup? :)

auxmike · 06-06-2009, 12:55 AM

Time to stop abusing a Yaris??

regal · 06-06-2009, 11:01 AM

Quote:

Originally Posted by taKuto

time for a stiffer setup? :)

Cars are built for us to drive hard. I have owned 12 cars in 20 years and enjoyed pushing their limits. Only car I couldnt kill was an eg civic

Tamago · 06-06-2009, 07:23 AM

what's your tire air pressure, and how much did you cut off your bump stops when you installed the suspension?

SailDesign · 06-06-2009, 10:09 AM

Or are you confusing the "sandpaper" feel of the ABS with something bottoming out.

But Yeah - tire pressures?

regal · 06-06-2009, 10:58 AM

Quote:

Originally Posted by SailDesign

Or are you confusing the "sandpaper" feel of the ABS with something bottoming out.

But Yeah - tire pressures?

You know I've ever owned an ABS veicle, this maybe it. It is like a sandpaper grabbing and releasing quickly.

CASTREX · 06-06-2009, 06:22 PM

Quote:

Originally Posted by regal

You know I've ever owned an ABS veicle, this maybe it. It is like a sandpaper grabbing and releasing quickly.

There you go! it's probably the abs doing its thing.

Go find some slippery surface and do some heavy braking to try to replicate the feeling.

scape · 06-08-2009, 11:38 AM

Quote:

Originally Posted by regal

You know I've ever owned an ABS veicle, this maybe it. It is like a sandpaper grabbing and releasing quickly.

sounds like abs, you might be able to easily deactivate it for your hard driving days...

Tamago · 06-08-2009, 11:53 AM

Quote:

Originally Posted by scape

sounds like abs, you might be able to easily deactivate it for your hard driving days...

not recommended... you'll be HATING life.. instant brake lockup

largeorangefont · 06-08-2009, 01:40 PM

Quote:

Originally Posted by Tamago

not recommended... you'll be HATING life.. instant brake lockup

It is definately NOT instant lock up, The car is fine without it. You just have to be smooth on the brakes and modulate the pedal.

kngrsll · 06-06-2009, 10:27 AM

try smoothing out your driving style, remember SMOOTH = FAST

Tamago · 06-06-2009, 09:48 PM

answer my question please

scape · 06-08-2009, 04:55 PM

i didn't realize there was a difference (abs deactivated vs non-abs), but that makes sense seeing how abs needs to pump the brakes so rapidly

abs really gets in the way on smooth and dry surfaces, where it's not needed so much, but comes into play anyways.. on gravel and wet, it has it's ups ;D

largeorangefont · 06-08-2009, 04:58 PM

Quote:

Originally Posted by scape

i didn't realize there was a difference (abs deactivated vs non-abs), but that makes sense seeing how abs needs to pump the brakes so rapidly

The non ABS cars have a more linear brake feel so you can modulate better.

ABS cars are generally have more boos and are less linear to give lots of brake with minimal pedal travel, and the ABS will modulate if necessary.

Tamago · 06-08-2009, 05:07 PM

Quote:

Originally Posted by scape

i didn't realize there was a difference (abs deactivated vs non-abs), but that makes sense seeing how abs needs to pump the brakes so rapidly

abs really gets in the way on smooth and dry surfaces, where it's not needed so much, but comes into play anyways.. on gravel and wet, it has it's ups ;D

i'd like to see someone out-brake my ABS with EBD on dry pavement :D it's superb, in fact i genuinely feel that in a straight line, current ABS systems will easily out perform the average driver's foot

largeorangefont · 06-08-2009, 06:36 PM

Quote:

Originally Posted by Tamago

i'd like to see someone out-brake my ABS with EBD on dry pavement :D it's superb, in fact i genuinely feel that in a straight line, current ABS systems will easily out perform the average driver's foot

I agree. the key word is average.

Tamago · 06-08-2009, 06:54 PM

Quote:

Originally Posted by largeorangefont

I agree. the key word is average.

how many above average drivers are in this thread?

not me!

06-06-2009, 12:22 AM	#1
regal Drives: 09 Yaris 3 Dr White LB Join Date: Mar 2009 Location: PA Posts: 432	Bottoming out while heavy breaking/turning I had gone over a curb, they replced everything from th oil pan to the xmember to the entire exhaust. I'm on TRD springs, Tokico Blue hock, TRD reaer Sway. Under very fast heavy braking I sometimes feel something like the tranny bottoming out/grinding. Toyota dealer offered to look at it but they just usually baby drive. Do you thik I am just pushing the limits of the TRD springs? Its really not repeatable, only happens under the worst abuse, do you thik it is worth a trip back to the colllision center?

06-06-2009, 12:32 AM	#2
taKuto rice rocket Drives: 05 Echo Join Date: Feb 2007 Location: Toronto Posts: 163	time for a stiffer setup? :) __________________

06-06-2009, 12:55 AM	#3
auxmike Drives: 2008 HB, A/T, Power W/L/M Join Date: Oct 2008 Location: LI, New Yawk Posts: 2,063	Time to stop abusing a Yaris?? __________________ Never take eyes off opponent - Bruce Lee

06-06-2009, 10:27 AM	#12
kngrsll Apexing Egg!! Drives: 07 Toyota Yaris white hatch Join Date: Oct 2006 Location: Spartanburg, SC Posts: 872	try smoothing out your driving style, remember SMOOTH = FAST __________________ HighTach Motorsports 2007 Toyota Yaris-ARGH!! Mods: Tokico HTS, 6.6 kg F, 6.1 kg R custom springs, 23 mm RSB, 2-way TRD LSD, 15x7 +25 Team Dynamic wheels, 195/55/15 Dunlop Star Specs, Cobra Suzuka S

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06-06-2009, 10:09 AM	#6
SailDesign Drives: . Join Date: Feb 2007 Location: . Posts: 1,931	Or are you confusing the "sandpaper" feel of the ABS with something bottoming out. But Yeah - tire pressures?

06-08-2009, 04:55 PM	#14
scape View User's Garage Drives: 2007 Yaris Hatchback Join Date: Jul 2007 Location: Beaufort, South Carolina Posts: 388	i didn't realize there was a difference (abs deactivated vs non-abs), but that makes sense seeing how abs needs to pump the brakes so rapidly abs really gets in the way on smooth and dry surfaces, where it's not needed so much, but comes into play anyways.. on gravel and wet, it has it's ups ;D