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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alamkhan3980
Senior Member
368
08-09-2016, 01:20 AM
#21
I have increased my PSI from 35 to 38 for last few days and covered a mixture of roads and the handling has improved. As Steve said, it is all experimental based on your car setup.

[SIZE="1"]Lexus IS300 Navigator
Engine: ITG ProFilter, Joe-Z Intake Pipe, Custom HKS Super Drager Exhaust, TRD Oil & Rad Cap & Grounding Kit
Suspension: BC Racing Coilovers, Hotchkis ARB's, Chassis Braces & WIM Geometry
Wheels: 18" OZ Ultraleggera & Falken ZE912 Tyres
Styling: Seibon Carbon Fibre Bonnet, Figs Bonnet Struts, Sports Grill, Repositioned Horns & SS Dials
ICE: JVC KW-AVX720 HU, Hifonics ZXI 6410 Amp, MB Quart RUA 216 2-Way Components, StealthBoXz with Infinity 12" Sub & Reverse Camera[/SIZE]
alamkhan3980
08-09-2016, 01:20 AM #21

I have increased my PSI from 35 to 38 for last few days and covered a mixture of roads and the handling has improved. As Steve said, it is all experimental based on your car setup.


[SIZE="1"]Lexus IS300 Navigator
Engine: ITG ProFilter, Joe-Z Intake Pipe, Custom HKS Super Drager Exhaust, TRD Oil & Rad Cap & Grounding Kit
Suspension: BC Racing Coilovers, Hotchkis ARB's, Chassis Braces & WIM Geometry
Wheels: 18" OZ Ultraleggera & Falken ZE912 Tyres
Styling: Seibon Carbon Fibre Bonnet, Figs Bonnet Struts, Sports Grill, Repositioned Horns & SS Dials
ICE: JVC KW-AVX720 HU, Hifonics ZXI 6410 Amp, MB Quart RUA 216 2-Way Components, StealthBoXz with Infinity 12" Sub & Reverse Camera[/SIZE]

parthiban
Posting Freak
4,925
08-09-2016, 01:37 AM
#22
steviewevie I think you just need to experiment and see what works well for you Parthiban. My car is handling great with 38psi, but I've got TTE springs and uprated ARBs, so what works well for me might not be the same for you.

Yeah totally agree, just wanted to see whether anyone else was experiencing the same thing Blush

But yes both our cars will have very different handling characteristics anyway so isn't a direct comparison Smile

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
08-09-2016, 01:37 AM #22

steviewevie I think you just need to experiment and see what works well for you Parthiban. My car is handling great with 38psi, but I've got TTE springs and uprated ARBs, so what works well for me might not be the same for you.

Yeah totally agree, just wanted to see whether anyone else was experiencing the same thing Blush

But yes both our cars will have very different handling characteristics anyway so isn't a direct comparison Smile


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
15-09-2016, 02:45 AM
#23
Ok I've definitely got a problem, had a massive moment this morning that has got me a little concerned.

Turning right at about 20mph, squeezed the throttle a bit harder than normal to make the turn as there was a car approaching - because of this the car snatched 1st instead of staying in 2nd.

Normally this isn't a problem, bit of wheelspin, TC picks it up and there's no drama except maybe a slight step out. This morning though the rear end just snapped and in an instant I was pointing head on at the traffic island at the junction - it was a quick armful of opposite lock that saved me from heading straight into the bollard.........

It's possible there was some oil down that caused it, but given the car has been behaving so weirdly recently I just don't know. What I don't get is how unpredictable the car is - sometimes it feels totally planted, and sometimes it just snaps!

I'm going to get the car to Tony as soon as I can now as I need to have it checked over - could it be the tyres? Considering swapping the tyres front to back to see if the problem persists, is it ok to do that?

Are there any other problems it could be? Could I have suspension damage or something that is unsettling the car?

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
15-09-2016, 02:45 AM #23

Ok I've definitely got a problem, had a massive moment this morning that has got me a little concerned.

Turning right at about 20mph, squeezed the throttle a bit harder than normal to make the turn as there was a car approaching - because of this the car snatched 1st instead of staying in 2nd.

Normally this isn't a problem, bit of wheelspin, TC picks it up and there's no drama except maybe a slight step out. This morning though the rear end just snapped and in an instant I was pointing head on at the traffic island at the junction - it was a quick armful of opposite lock that saved me from heading straight into the bollard.........

It's possible there was some oil down that caused it, but given the car has been behaving so weirdly recently I just don't know. What I don't get is how unpredictable the car is - sometimes it feels totally planted, and sometimes it just snaps!

I'm going to get the car to Tony as soon as I can now as I need to have it checked over - could it be the tyres? Considering swapping the tyres front to back to see if the problem persists, is it ok to do that?

Are there any other problems it could be? Could I have suspension damage or something that is unsettling the car?


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]

steviewevie
Posting Freak
7,993
15-09-2016, 02:50 AM
#24
Getting the car to WIM sounds like a good plan. Also I don't see that it can hurt swapping the front tyres to the back, as long as they have a similar amount of grip - don't swap the fronts to the back if the fronts have less tread left than the rears though.

Could be some sort of suspension damage but I would expect WIM to be able to pick up that sort of thing.

Was it damp this morning though ? Could just be bad luck and another greasy surface ?

[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
15-09-2016, 02:50 AM #24

Getting the car to WIM sounds like a good plan. Also I don't see that it can hurt swapping the front tyres to the back, as long as they have a similar amount of grip - don't swap the fronts to the back if the fronts have less tread left than the rears though.

Could be some sort of suspension damage but I would expect WIM to be able to pick up that sort of thing.

Was it damp this morning though ? Could just be bad luck and another greasy surface ?


[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
15-09-2016, 03:11 AM
#25
steviewevie Was it damp this morning though ? Could just be bad luck and another greasy surface ?

Yeah it was wet, but this was still very unexpected behaviour - a little wiggle is fine, a full on tank slapper (when I wasn't being silly) was a real shock.

Also, I'm not sure if you'll agree, but I find the IS200 quite progressive when it loses grip, and is very easy to catch as it generally comes round quite slowly. It's very out of character for it to snap so instantly, I can't actually remember it ever happening before and needing such a quick reaction to prevent disaster.
Edited 27-10-2009, 12:49 PM by parthiban.

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
15-09-2016, 03:11 AM #25

steviewevie Was it damp this morning though ? Could just be bad luck and another greasy surface ?

Yeah it was wet, but this was still very unexpected behaviour - a little wiggle is fine, a full on tank slapper (when I wasn't being silly) was a real shock.

Also, I'm not sure if you'll agree, but I find the IS200 quite progressive when it loses grip, and is very easy to catch as it generally comes round quite slowly. It's very out of character for it to snap so instantly, I can't actually remember it ever happening before and needing such a quick reaction to prevent disaster.


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]

ormi
Posting Freak
3,006
15-09-2016, 12:12 PM
#26
was their much damage to the car??looks like you'll have to get a 4wa(tracking) done again?how'd you manage that?looks like a big off.

[Image: ormiedit1-2.jpg]
TTE supercharger,pr0lex manifold,hks fcd,larger intercooler,apexi induction kit,silicone hose kit,IK22's,polished engine parts,TTE front bumper mod'd for intercooler,TRD side skirts,TRD rear lip,JDM headlights and fogs,10k hid headlights 8k full beam,L8XSS p/plate,fog/brake/light conversion,18"fox rs's,lowered 90mm(f)100mm®,moleys under bars,yellow trd anti rollbars,full stainless exhaust,carbon fiber intake plus so much more
ormi
15-09-2016, 12:12 PM #26

was their much damage to the car??looks like you'll have to get a 4wa(tracking) done again?how'd you manage that?looks like a big off.


[Image: ormiedit1-2.jpg]
TTE supercharger,pr0lex manifold,hks fcd,larger intercooler,apexi induction kit,silicone hose kit,IK22's,polished engine parts,TTE front bumper mod'd for intercooler,TRD side skirts,TRD rear lip,JDM headlights and fogs,10k hid headlights 8k full beam,L8XSS p/plate,fog/brake/light conversion,18"fox rs's,lowered 90mm(f)100mm®,moleys under bars,yellow trd anti rollbars,full stainless exhaust,carbon fiber intake plus so much more

parthiban
Posting Freak
4,925
16-09-2016, 03:19 AM
#27
D**m that does look like a big off, glad it wasn't a serious crash and hope no damage was done to the car. Did you have your foot down hard?

The IS200 doesn't generally lose grip so easily which is why I'm so concerned about my car at the mo........was there some mud down on the road or something?

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
16-09-2016, 03:19 AM #27

D**m that does look like a big off, glad it wasn't a serious crash and hope no damage was done to the car. Did you have your foot down hard?

The IS200 doesn't generally lose grip so easily which is why I'm so concerned about my car at the mo........was there some mud down on the road or something?


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]

steviewevie
Posting Freak
7,993
16-09-2016, 03:29 AM
#28
Have you tried swapping your tyres front to rear yet Parthiban ? Have you still got plenty of tread left ?

I've only had the back of the car step out once, on a greasy roundabout, but as you say it came round quite slowly and I easily caught it.

[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
16-09-2016, 03:29 AM #28

Have you tried swapping your tyres front to rear yet Parthiban ? Have you still got plenty of tread left ?

I've only had the back of the car step out once, on a greasy roundabout, but as you say it came round quite slowly and I easily caught it.


[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
16-09-2016, 04:03 AM
#29
steviewevie Have you tried swapping your tyres front to rear yet Parthiban ? Have you still got plenty of tread left ?

I've only had the back of the car step out once, on a greasy roundabout, but as you say it came round quite slowly and I easily caught it.

Not yet, will do it at the weekend if I have time. That's what's confusing though, there's plenty of tread and it's all nice and even wear.

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
16-09-2016, 04:03 AM #29

steviewevie Have you tried swapping your tyres front to rear yet Parthiban ? Have you still got plenty of tread left ?

I've only had the back of the car step out once, on a greasy roundabout, but as you say it came round quite slowly and I easily caught it.

Not yet, will do it at the weekend if I have time. That's what's confusing though, there's plenty of tread and it's all nice and even wear.


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
17-09-2016, 02:00 AM
#30
Yep, thankfully you can just chalk it up to a lesson learned - you don't want to spin the wheel too much in the opposite direction, just half to one turn the other way to correct the slide.

No damage to the bodywork then from heading into the bushes? That's really lucky! Smile

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
17-09-2016, 02:00 AM #30

Yep, thankfully you can just chalk it up to a lesson learned - you don't want to spin the wheel too much in the opposite direction, just half to one turn the other way to correct the slide.

No damage to the bodywork then from heading into the bushes? That's really lucky! Smile


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]

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