[AlpinewhiteM2C]

Originally Posted by Lappy

Are you running a FSB? Based on my findings last year, a fsb on a m2c and even the OG is not the correct answer. The car just turns to a hateful plow machine even on the softest settings compared to the oem fsb.

I am running a Hotchkis FSB set at 2nd to softest. Ladders and slaloms are a staples here in the PNW due to the venue sizes (mostly old, narrow airfields). The FSB helps keep the rear in check during hard transitions which is good. The trade off though is the understeer in the two turnarounds/ sweepers we have in every event. I'm still on stock suspension so I'm exploring rear shocks to help solve for the understeer.

[Dean_Clevername]

Originally Posted by AlpinewhiteM2C

I am running a Hotchkis FSB set at 2nd to softest. Ladders and slaloms are a staples here in the PNW due to the venue sizes (mostly old, narrow airfields). The FSB helps keep the rear in check during hard transitions which is good. The trade off though is the understeer in the two turnarounds/ sweepers we have in every event. I'm still on stock suspension so I'm exploring rear shocks to help solve for the understeer.

I'm also running a Hotchkis FSB at full soft. Understeer isn't horrible, but it was the limiting factor and was a bit frustrating. I too think shocks would be the ideal solution in combination.

I took out a bunch of rear toe just before nats to try and get the rear involved but the car was not predictable and had a lot less traction (from 0.19deg to 1/16" total, annoying conversion)

I bumped it up to 0.17degrees total car toe for the GA tour this week. Hope it's better now or I'll still be slow

[GJMills]

Does anyone have details on the specific performance differences between a Falken RT660 265/35/19 and 275/30/19 front tire?

[Teamtiger21]

Is there a prior discussion on how to enlarge the brake peddle on a 7 speed for left foot braking? Thanks Barry

[AlpinewhiteM2C]

Originally Posted by GJMills

Does anyone have details on the specific performance differences between a Falken RT660 265/35/19 and 275/30/19 front tire?

I have experience between a 265/35/19 Bridgestone RE71 vs 275/30/19 RT660s in the front. The 275 RT660s felt better as far as turn in crispness and front end grip. If I had to choose between 265/35 vs 275/30 (same manufacturer), I'd opt for the 275/30. The very competitive drivers in my region runs the 275/30 fronts which is pretty compelling anecdotal data.

[CSBM5]

Originally Posted by AlpinewhiteM2C

I have experience between a 265/35/19 Bridgestone RE71 vs 275/30/19 RT660s in the front. The 275 RT660s felt better as far as turn in crispness and front end grip. If I had to choose between 265/35 vs 275/30 (same manufacturer), I'd opt for the 275/30. The very competitive drivers in my region runs the 275/30 fronts which is pretty compelling anecdotal data.

...coupled with 275/35-19 rears? Or 305/30-19 rears?

[Lappy]

Camber hubs, lots of pushing and pulling when installing shocks to focus on front camber and I was able to achieve 2.0 drivers side, 2.1 passenger side with me in the car. Problem we ran into is with the passenger rear. Anything over 1.8 camber would not allow enough toe adjustment to toe that side in. Drivers rear did not exhibit this behavior. Anyone run into this before?

[AlpinewhiteM2C]

Originally Posted by CSBM5

...coupled with 275/35-19 rears? Or 305/30-19 rears?

OG M2 running 275/35/19 rears.

[Lappy]

Originally Posted by CSBM5

...coupled with 275/35-19 rears? Or 305/30-19 rears?

Last year I ran 275/30 F with both 275/35 and 275/30 rears. The car was hateful and did not want to put power down. Based on my experience, the 660s are not really a good tire. Yes the 275/30 works well for the front, untill it heat cycles out, however it is simply not enough tire for the rear of a m2c. I would go with the larger 305 if the 660 is your choice. Lastly, good luck in damp/wet conditions are the tires are just about useless then lol.

[CSBM5]

Kind of sounds like A052s in 255/35-19 and 275/35-19 might be a better option than the RT660s? (i.e. M2C so forced to use 19")

[madwheeling]

Originally Posted by Lappy

Camber hubs, lots of pushing and pulling when installing shocks to focus on front camber and I was able to achieve 2.0 drivers side, 2.1 passenger side with me in the car. Problem we ran into is with the passenger rear. Anything over 1.8 camber would not allow enough toe adjustment to toe that side in. Drivers rear did not exhibit this behavior. Anyone run into this before?

I got to about 1.9 when I ran out of toe on the passenger side. When I installed coil overs and lowered it I was able to add more camber and had plenty of toe.

[Lappy]

I am currently running 275/30/19s 660 on the front and 295/35/18 ao52 on the rear of my M2c. This weekend will be the first try with everything finally setup and prepped so we will see I guess.

[Lappy]

Originally Posted by madwheeling

I got to about 1.9 when I ran out of toe on the passenger side. When I installed coil overs and lowered it I was able to add more camber and had plenty of toe.

What is really strange is that this is only on the passenger side rear, the driver's rear doesn't appear to have this issue and at -1.9 camber we could get almost .5 toe in just on that side, where as -1.8 on the passenger side would only result in .06 toe in maxed out (which is what I run per side)

[CSBM5]

Originally Posted by Lappy

I am currently running 275/30/19s on the front and 295/35/18 on the rear of my M2c. This weekend will be the first try with everything finally setup and prepped so we will see I guess.

Tires? I don't see the 295/35-18 for RT660 nor a 275/30-19 for the A052.

[Lappy]

Originally Posted by CSBM5

Tires? I don't see the 295/35-18 for RT660 nor a 275/30-19 for the A052.

Must have edited it too late.

275/30/19 660 front
295/35/18 ao52 rear

[CSBM5]

Originally Posted by Lappy

Must have edited it too late.

275/30/19 660 front
295/35/18 ao52 rear

Ah, wow, cool. Looking forward to how that works out!

[GasBurnlife(landapanda)]

Originally Posted by Lappy

Must have edited it too late.

275/30/19 660 front
295/35/18 ao52 rear

I would stay away from running two separate compounds F/R. You want stability under load to maximize mid corner speed, which this setup will not yield.

[AlpinewhiteM2C]

Originally Posted by Lappy

Last year I ran 275/30 F with both 275/35 and 275/30 rears. The car was hateful and did not want to put power down. Based on my experience, the 660s are not really a good tire. Yes the 275/30 works well for the front, untill it heat cycles out, however it is simply not enough tire for the rear of a m2c. I would go with the larger 305 if the 660 is your choice. Lastly, good luck in damp/wet conditions are the tires are just about useless then lol.

Agree with your assessment on 275 RT660s in the rears is not a good fit for the M2C. It's the OG M2s that were having a better time with that setup.

[AlpinewhiteM2C]

Originally Posted by CSBM5

Kind of sounds like A052s in 255/35-19 and 275/35-19 might be a better option than the RT660s? (i.e. M2C so forced to use 19")

I'm liking this set up quite a bit after a few test and tunes and initial SCCA events. The RT660s will just not fire up when the temps are low (mid 40s to low 50s) we are experiencing wheather wise in the PNW. The A052s starts to work well after first run. Only negative is the accelerated tire wear in the fronts compared to 660s.

[Lappy]

Looks pretty stable to me lol. Stock front bar, heavy slalom transition based course. Car is ON THE MONEY....and it was complete dog shit last year.

[Dean_Clevername]

Originally Posted by Lappy

Last year I ran 275/30 F with both 275/35 and 275/30 rears. The car was hateful and did not want to put power down. Based on my experience, the 660s are not really a good tire. Yes the 275/30 works well for the front, untill it heat cycles out, however it is simply not enough tire for the rear of a m2c. I would go with the larger 305 if the 660 is your choice. Lastly, good luck in damp/wet conditions are the tires are just about useless then lol.

What rear toe settings were you using? I have those same RT660 rears on my OG and it has been both an understeer machine and a drift car that doesn't want to put down any power. Only difference has been my rear toe settings

[Lappy]

Originally Posted by Dean_Clevername

What rear toe settings were you using? I have those same RT660 rears on my OG and it has been both an understeer machine and a drift car that doesn't want to put down any power. Only difference has been my rear toe settings

Same .12 inches total in.