JapCarForum Car Manufacturers Lexus/Toyota IS200 / IS300 / SPORTCROSS / Altezza Losing rear end grip

Losing rear end grip

Losing rear end grip

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parthiban
Posting Freak
4,925
24-08-2016, 02:34 AM
#1
I'm not sure why everything seems to be going wrong at the moment, but over the last few weeks I haven't had as much grip at the rear as I have had in the past - on the F1s its been pretty much glued to the road until now.

Now I'm triggering the TRC all the time (even in the dry) and this morning had quite a hairy aquaplaning moment on some standing water - again something that hasn't happened at all since getting the F1s and it was curious as the front was totally planted but it was just the rear that went.

I've looked at my tyres and they look fine, there's plenty of tread on them and nothing obvious wrong. Haven't checked my pressures for a bit so going to do that this evening but could there be anything else wrong?

I guess I could have knocked the geo out in a pothole or something but that couldn't have had such a drastic effect could it?

2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]
parthiban
24-08-2016, 02:34 AM #1

I'm not sure why everything seems to be going wrong at the moment, but over the last few weeks I haven't had as much grip at the rear as I have had in the past - on the F1s its been pretty much glued to the road until now.

Now I'm triggering the TRC all the time (even in the dry) and this morning had quite a hairy aquaplaning moment on some standing water - again something that hasn't happened at all since getting the F1s and it was curious as the front was totally planted but it was just the rear that went.

I've looked at my tyres and they look fine, there's plenty of tread on them and nothing obvious wrong. Haven't checked my pressures for a bit so going to do that this evening but could there be anything else wrong?

I guess I could have knocked the geo out in a pothole or something but that couldn't have had such a drastic effect could it?


2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]

Lexusboy
Posting Freak
9,267
24-08-2016, 02:44 AM
#2
You may of found out what wrong already by checking the pressure of each wheel.
Also would there of been a chance that a spill may of happen on this bit of road?
Lexusboy
24-08-2016, 02:44 AM #2

You may of found out what wrong already by checking the pressure of each wheel.
Also would there of been a chance that a spill may of happen on this bit of road?

steviewevie
Posting Freak
7,993
24-08-2016, 02:45 AM
#3
I wouldn't have thought it would be the geo either. I would be inclined to check the pressures first too.

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
24-08-2016, 02:45 AM #3

I wouldn't have thought it would be the geo either. I would be inclined to check the pressures first too.


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

parthiban
Posting Freak
4,925
24-08-2016, 02:57 AM
#4
Right so that is the most likely cause, just thinking that I only had the car serviced a few months ago, so maybe they dropped the pressures as per Lexus spec.....

2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]
parthiban
24-08-2016, 02:57 AM #4

Right so that is the most likely cause, just thinking that I only had the car serviced a few months ago, so maybe they dropped the pressures as per Lexus spec.....


2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]

Purvesh
Junior Member
48
25-08-2016, 12:50 AM
#5
Stop doing burnouts at the lights bro :p

Keep on top of your tyre pressure 35psi all round. You might have gone over an oil spill and some of it is still in the thread...

[COLOR="DarkSlateBlue"]--------------------
IS200SE, Astral Black, Auto, DVD Sat Nav, TTE Front Bumper, TRD rear skirt, TRD side skirts, IS300 Lip spoiler with integrated brake light, 18" Inovit Hunter Alloy wheels with Toyo T1-S 225/40 tyres, Dark Lexus Fogs and Headlights, LS430 side repeaters, Sport Auto Pedals, Lexus floor mats with custom decals, 8000k HIDs, Xenon LED sidelights, GromAudio Ipod lead, WIM calibrated geometry...
[/COLOR]
Purvesh
25-08-2016, 12:50 AM #5

Stop doing burnouts at the lights bro :p

Keep on top of your tyre pressure 35psi all round. You might have gone over an oil spill and some of it is still in the thread...


[COLOR="DarkSlateBlue"]--------------------
IS200SE, Astral Black, Auto, DVD Sat Nav, TTE Front Bumper, TRD rear skirt, TRD side skirts, IS300 Lip spoiler with integrated brake light, 18" Inovit Hunter Alloy wheels with Toyo T1-S 225/40 tyres, Dark Lexus Fogs and Headlights, LS430 side repeaters, Sport Auto Pedals, Lexus floor mats with custom decals, 8000k HIDs, Xenon LED sidelights, GromAudio Ipod lead, WIM calibrated geometry...
[/COLOR]

Dan_Turism0
Posting Freak
2,825
25-08-2016, 12:58 AM
#6
have to remember it's been dry for a while and suddenly when it's wet it will cause the roads to become more greasey, I would defo say check pressure+geo 35psi for me too.
I changed my tyres from Eagle F1's to FK452's and tbh I've found the Falkens to be better even when i'm larking around i've still not got the back end out with TRC off (apart from when they were first fitted and the car went sideways coming out of the tyre garage Big Grin )

My Garage
Supra Build Thread

' Nothing feels quick when your other car has a 1000bhp - JamieP
Quote:A Supra without a spoiler is like a Gypsy's dog without a Nob.
Dan_Turism0
25-08-2016, 12:58 AM #6

have to remember it's been dry for a while and suddenly when it's wet it will cause the roads to become more greasey, I would defo say check pressure+geo 35psi for me too.
I changed my tyres from Eagle F1's to FK452's and tbh I've found the Falkens to be better even when i'm larking around i've still not got the back end out with TRC off (apart from when they were first fitted and the car went sideways coming out of the tyre garage Big Grin )


My Garage
Supra Build Thread

' Nothing feels quick when your other car has a 1000bhp - JamieP
Quote:A Supra without a spoiler is like a Gypsy's dog without a Nob.

parthiban
Posting Freak
4,925
25-08-2016, 01:50 AM
#7
Thanks for all the replies, couldn't be bothered to check the pressures yesterday but hopefully do it tonight.

Only really noticed it because I was losing grip in the dry - around local roads I know exactly when and where I'll get some slip and the TC will flick on when turning right or left. Recently I've found the TC coming on at places where it wouldn't previously.

To make it more confusing, high speed grip is still fine, going round roundabouts at speed I'm not losing the back end.......

Will check the pressures, and other than that a visit to WIM is in order anyway.

2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]
parthiban
25-08-2016, 01:50 AM #7

Thanks for all the replies, couldn't be bothered to check the pressures yesterday but hopefully do it tonight.

Only really noticed it because I was losing grip in the dry - around local roads I know exactly when and where I'll get some slip and the TC will flick on when turning right or left. Recently I've found the TC coming on at places where it wouldn't previously.

To make it more confusing, high speed grip is still fine, going round roundabouts at speed I'm not losing the back end.......

Will check the pressures, and other than that a visit to WIM is in order anyway.


2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]

parthiban
Posting Freak
4,925
30-08-2016, 09:10 AM
#8
Checked my pressures, all were around 32 so think they might have knocked them down at the service a month ago.......but I also haven't checked them so probably that too!

Put them back up to 37 - is that what some were recommending on 18s (can't remember which thread that was being discussed in a few weeks ago)

2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]
parthiban
30-08-2016, 09:10 AM #8

Checked my pressures, all were around 32 so think they might have knocked them down at the service a month ago.......but I also haven't checked them so probably that too!

Put them back up to 37 - is that what some were recommending on 18s (can't remember which thread that was being discussed in a few weeks ago)


2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]

aaronabbott
Posting Freak
804
30-08-2016, 11:20 AM
#9
mine were at 32 so i upped them to 35 and it feels much better at high speeds and in the wet

ICE-JVC kw-avx820,JL 300/4,JL 500/1,JL HO210R-W3V2,mb quart rua-216 components,2x veba headrest screens
TRD front lip,hid 8000k,ik 20's,front armrest,18'' black rims with chrome polished lip,k&n filter,hks superdragger,chrome a/c rings,rear view camera,bc coilovers
aaronabbott
30-08-2016, 11:20 AM #9

mine were at 32 so i upped them to 35 and it feels much better at high speeds and in the wet


ICE-JVC kw-avx820,JL 300/4,JL 500/1,JL HO210R-W3V2,mb quart rua-216 components,2x veba headrest screens
TRD front lip,hid 8000k,ik 20's,front armrest,18'' black rims with chrome polished lip,k&n filter,hks superdragger,chrome a/c rings,rear view camera,bc coilovers

steviewevie
Posting Freak
7,993
30-08-2016, 11:51 AM
#10
I've got my 18" Chicanes at 38psi.

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
30-08-2016, 11:51 AM #10

I've got my 18" Chicanes at 38psi.


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

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