More grippy tyre only front. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Mars2 · 09-23-2012, 11:30 AM

Hi,

I'm new here. I'm french
I was thinking to put more sticky tyre in front like Michelin PSS in 225/45/17
and keep the primacy 215/45/17in the back.
That is to get better turn in than the primacy at 4 corner but still that happy tail car and as much fun and free tail car as possible.

I have had mostly owned high powered 4WD (subaru, Audi) car. On all my car I will run much wider front tyre. My audi 450 hp is running on 265 wide tyre front and 235 in the back.

I'm not racing my car or tracking
Mostly doing Very very fast mountain road late at night for fun. Rally style a la Sebastien Loeb
Want max fun don't care so much of being .5 second faster.

What do you think of such set up?

Mars2 · 09-23-2012, 11:38 AM

By the way I'm not a young hooligan I have 30 years of spirited mountain rod drive in my back ground.
Would have dream to do rally but not enough money when I was young.
Now got the money but to hold to hope for any carreer in that.
So just enjoy as soon as can around my place. Lot's of wonderfull narrow montain road.
It's the Rally Monté Carlo area.

ultra · 09-23-2012, 02:31 PM

No reason it's not possible but I'd looknat adding front camber first, then fine tuning to the suspension setup, before trying 'reverse stagger' setups (unless it's just for kicks).

Also a possible risk of it becoming tail happy in exactly the way you don't want if you do stickier tires up front. A really loose rear might be fun for pitching it in hard to tight corners for drifting and/or powering out of tight bends but on the flip side it might become highly unstable at rear (and impossible to catch) in high speed bends, especially if you lift while cornering at high speed. Think early 80s Porsche 911 style.

If you do try it out, let us know how it behaves though. Might be fun for certain diving styles or roads for all I know.

CSG Mike · 10-08-2012, 05:47 AM

There's no reason it would become LESS stable. You're not subtracting grip in the rear.

There ARE other ways to get the rear loose... the car responds exceptionally well to e-brake application.

Mars2 · 10-08-2012, 07:33 AM

Thank's for your answer.

I don't want to get the back more loose I just want to get front more gripy

Mars2 · 10-08-2012, 07:35 AM

Sorry prees enter to quick

I mean keep back as it is "drift on demand" and get front a bit more gripy fro less understeer.

Panman · 10-08-2012, 08:02 AM

Your background seems to be typically understeery AWD cars. You will find if you haven't already that the car is much more neutral to oversteer out of the box than your previous rides. If anything I would recommend driving it stock for a while then trying some suspension tuning to get to your desired result.

There's nothing to stop you doing it, but try the car stock first.

09-23-2012, 11:30 AM	#1
Mars2 Senior Member Join Date: Sep 2012 Drives: GT86, AUDI RS2, VW T5 R32 Vortech Location: France Posts: 275 Thanks: 1 Thanked 72 Times in 53 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	More grippy tyre only front. Hi, I'm new here. I'm french I was thinking to put more sticky tyre in front like Michelin PSS in 225/45/17 and keep the primacy 215/45/17in the back. That is to get better turn in than the primacy at 4 corner but still that happy tail car and as much fun and free tail car as possible. I have had mostly owned high powered 4WD (subaru, Audi) car. On all my car I will run much wider front tyre. My audi 450 hp is running on 265 wide tyre front and 235 in the back. I'm not racing my car or tracking Mostly doing Very very fast mountain road late at night for fun. Rally style a la Sebastien Loeb Want max fun don't care so much of being .5 second faster. What do you think of such set up?

09-23-2012, 02:31 PM	#3
ultra Curious cat. Join Date: May 2012 Drives: 86 GT base M/T - Red Location: Dubai Posts: 775 Thanks: 840 Thanked 383 Times in 191 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	No reason it's not possible but I'd looknat adding front camber first, then fine tuning to the suspension setup, before trying 'reverse stagger' setups (unless it's just for kicks). Also a possible risk of it becoming tail happy in exactly the way you don't want if you do stickier tires up front. A really loose rear might be fun for pitching it in hard to tight corners for drifting and/or powering out of tight bends but on the flip side it might become highly unstable at rear (and impossible to catch) in high speed bends, especially if you lift while cornering at high speed. Think early 80s Porsche 911 style. If you do try it out, let us know how it behaves though. Might be fun for certain diving styles or roads for all I know. __________________ 2013 Toyota 86 GT M/T 2009 Renault Clio Sport R27 Team F1 Edition (sold) 1991 Mazda MX5 Miata (sold) 2007 Mitsubishi Evo 9 RS (sold) 2006 VW Golf R32 (sold)

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09-23-2012, 11:38 AM	#2
Mars2 Senior Member Join Date: Sep 2012 Drives: GT86, AUDI RS2, VW T5 R32 Vortech Location: France Posts: 275 Thanks: 1 Thanked 72 Times in 53 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	By the way I'm not a young hooligan I have 30 years of spirited mountain rod drive in my back ground. Would have dream to do rally but not enough money when I was young. Now got the money but to hold to hope for any carreer in that. So just enjoy as soon as can around my place. Lot's of wonderfull narrow montain road. It's the Rally Monté Carlo area.

10-08-2012, 05:47 AM	#4
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,562 Thanks: 8,942 Thanked 14,211 Times in 6,854 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	There's no reason it would become LESS stable. You're not subtracting grip in the rear. There ARE other ways to get the rear loose... the car responds exceptionally well to e-brake application.

10-08-2012, 07:33 AM	#5
Mars2 Senior Member Join Date: Sep 2012 Drives: GT86, AUDI RS2, VW T5 R32 Vortech Location: France Posts: 275 Thanks: 1 Thanked 72 Times in 53 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Thank's for your answer. I don't want to get the back more loose I just want to get front more gripy

10-08-2012, 07:35 AM	#6
Mars2 Senior Member Join Date: Sep 2012 Drives: GT86, AUDI RS2, VW T5 R32 Vortech Location: France Posts: 275 Thanks: 1 Thanked 72 Times in 53 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Sorry prees enter to quick I mean keep back as it is "drift on demand" and get front a bit more gripy fro less understeer.

10-08-2012, 08:02 AM	#7
Panman Senior Member Join Date: Jun 2012 Drives: 86 GTS Location: Brisbane Australia Posts: 706 Thanks: 141 Thanked 275 Times in 176 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Your background seems to be typically understeery AWD cars. You will find if you haven't already that the car is much more neutral to oversteer out of the box than your previous rides. If anything I would recommend driving it stock for a while then trying some suspension tuning to get to your desired result. There's nothing to stop you doing it, but try the car stock first.

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