optimal RTR setup - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

scottynoshotty · 02-25-2013, 11:40 PM

So this might sound like a stupid question..but if your planning on staying in Stock rtr class what is the most you can do? Im looking at stock sized RPF1s with RS3s on there. Brake Fluid and Upgraded Pads. MAYBE a lightwieght battery? not sure about that because ive heard that pushes you to STX.

ayau · 02-25-2013, 11:53 PM

Quote:

Originally Posted by scottynoshotty

So this might sound like a stupid question..but if your planning on staying in Stock rtr class what is the most you can do? Im looking at stock sized RPF1s with RS3s on there. Brake Fluid and Upgraded Pads. MAYBE a lightwieght battery? not sure about that because ive heard that pushes you to STX.

tires
same width/diameter tires. offset can be +/- 6mm
front sway bar
dampers only (must keep OEM springs)

scottynoshotty · 02-26-2013, 12:05 AM

Thanks..just ran into some 9 lb Enkei rims..1600 for a set of four in stock size but 44 lbs of rotating mass? HELLO

http://www.tirerack.com/wheels/Wheel...ll&sort=Weight

anyone know anything about these? ive been looking for a good light set of wheels and coming from a name like Enkei i figured theyd be pretty good quality..just surprised Ive never heard of them around here before. Certainly not cheap but like I said 44lbs of unsprung and rotating mass? Holy Toledo

Sam Strano · 02-26-2013, 12:08 AM

I've got Enkei's that are right to limit on offset. You can do dampers... and I've got one set of Koni sports in stock yet too. You can do one swaybar change.... and you want a bit more, but not too much front bar. Pads are legal to change, camber bolts (OEM only). Tires, well that's TBD about what's quickest.

ayau · 02-26-2013, 12:09 AM

Quote:

Originally Posted by scottynoshotty

Thanks..just ran into some 9 lb Enkei rims..1600 for a set of four in stock size but 44 lbs of rotating mass? HELLO

http://www.tirerack.com/wheels/Wheel...ll&sort=Weight

anyone know anything about these? ive been looking for a good light set of wheels and coming from a name like Enkei i figured theyd be pretty good quality..just surprised Ive never heard of them around here before. Certainly not cheap but like I said 44lbs of unsprung and rotating mass? Holy Toledo

That's a typo. The best bang/buck is the Enkei RPF1.

Sam Strano · 02-26-2013, 12:10 AM

9 pounds? Not correct. RPF1's are just under 16 and you don't get much lighter....

jdrxb9 · 02-26-2013, 10:48 AM

Quote:

Originally Posted by ayau

tires
same width/diameter wheels. offset can be +/- 6mm
front sway bar (or rear, but as noted by Sam, you want a front for the 86)
dampers only (must keep OEM springs)

OEM front strut alignment bolts
any exhaust behind the 2nd cat
drop in air filter

lots of info on here regarding the alignment bolts, etc
e.g. http://www.ft86club.com/forums/showt...ighlight=stock
or
http://www.ft86club.com/forums/showt...ighlight=stock

Also, here's a handy chart that compares allowed modifications across categories:
http://www.sff.net/people/dburkhead/prepcompare.htm

enjoyminutemaid · 02-26-2013, 12:46 PM

BFGoodrich Rivals in 225/45-17 on Kosei K4R 17x7, Konis, camber bolts, adjustable front sway bar, alignment maxing out negative front camber. BOOM.

colHolm · 02-26-2013, 02:11 PM

Quote:

Originally Posted by scottynoshotty

Thanks..just ran into some 9 lb Enkei rims..1600 for a set of four in stock size but 44 lbs of rotating mass? HELLO

http://www.tirerack.com/wheels/Wheel...ll&sort=Weight

anyone know anything about these? ive been looking for a good light set of wheels and coming from a name like Enkei i figured theyd be pretty good quality..just surprised Ive never heard of them around here before. Certainly not cheap but like I said 44lbs of unsprung and rotating mass? Holy Toledo

Enkei's website lists these at ~16 lbs

feldy · 02-26-2013, 02:36 PM

You can't use those for RTR anyways. They are a 17x8 and you can't use 18's

You have to stick to a 17x7 rim and you have 6mm of offset you can go.

fredk · 02-26-2013, 05:37 PM

RPF/1's weigh 4lbs a corner less than my stock wheels and tires, and that's with 235/40 Z2's. I was also surprised to see that my car weighed 2680 with 3/4 tank of gas.

Sam? What happened to the not giving all the info away???

RandyP · 02-26-2013, 05:59 PM

Kosei K4R are only 14 lbs and you can use a spacer if you want to max out the track width.

autoXracer · 02-26-2013, 08:22 PM

Quote:

Originally Posted by RandyP

Kosei K4R are only 14 lbs and you can use a spacer if you want to max out the track width.

Is this true? I have only seen tirerack listing it as 14 lb. If so it's even lighter than Enkei RPF1 and cheaper.

Miniata · 02-26-2013, 08:25 PM

Quote:

Originally Posted by autoXracer

Is this true? I have only seen tirerack listing it as 14 lb. If so it's even lighter than Enkei RPF1 and cheaper.

Yeah, that weight should be correct for the Koseis. I have the Kosei K1 TS on my BRZ, which are the same size and offset as the K4R, but weigh 14.6 lbs, for some reason Tirerack doesn't list them for the BRZ. I originally had them on my Forester XT.

02-25-2013, 11:40 PM	#1
scottynoshotty Member Join Date: Nov 2012 Drives: Hot Lava 2013 Scion Frs Location: Columbus, OH Posts: 76 Thanks: 0 Thanked 17 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	optimal RTR setup So this might sound like a stupid question..but if your planning on staying in Stock rtr class what is the most you can do? Im looking at stock sized RPF1s with RS3s on there. Brake Fluid and Upgraded Pads. MAYBE a lightwieght battery? not sure about that because ive heard that pushes you to STX.

02-26-2013, 02:36 PM	#10
feldy Senior Member Join Date: Aug 2011 Drives: 2013 FRS Asphalt Location: SF Bay Area Posts: 1,155 Thanks: 309 Thanked 335 Times in 212 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	You can't use those for RTR anyways. They are a 17x8 and you can't use 18's You have to stick to a 17x7 rim and you have 6mm of offset you can go. __________________ 2013 Scion FR-S AT Picked up 5/30/2012

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02-26-2013, 12:05 AM	#3
scottynoshotty Member Join Date: Nov 2012 Drives: Hot Lava 2013 Scion Frs Location: Columbus, OH Posts: 76 Thanks: 0 Thanked 17 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks..just ran into some 9 lb Enkei rims..1600 for a set of four in stock size but 44 lbs of rotating mass? HELLO http://www.tirerack.com/wheels/Wheel...ll&sort=Weight anyone know anything about these? ive been looking for a good light set of wheels and coming from a name like Enkei i figured theyd be pretty good quality..just surprised Ive never heard of them around here before. Certainly not cheap but like I said 44lbs of unsprung and rotating mass? Holy Toledo

02-26-2013, 12:08 AM	#4
Sam Strano Senior Member Join Date: Jun 2012 Drives: 2013 FR-S Asphalt Location: Brookville PA Posts: 345 Thanks: 1 Thanked 223 Times in 108 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	I've got Enkei's that are right to limit on offset. You can do dampers... and I've got one set of Koni sports in stock yet too. You can do one swaybar change.... and you want a bit more, but not too much front bar. Pads are legal to change, camber bolts (OEM only). Tires, well that's TBD about what's quickest.

02-26-2013, 12:10 AM	#6
Sam Strano Senior Member Join Date: Jun 2012 Drives: 2013 FR-S Asphalt Location: Brookville PA Posts: 345 Thanks: 1 Thanked 223 Times in 108 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	9 pounds? Not correct. RPF1's are just under 16 and you don't get much lighter....

02-26-2013, 12:46 PM	#8
enjoyminutemaid Senior Member Join Date: Jun 2012 Drives: Subaru BRZ Limited WRB Manual Location: RI/MA Posts: 212 Thanks: 185 Thanked 46 Times in 29 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	BFGoodrich Rivals in 225/45-17 on Kosei K4R 17x7, Konis, camber bolts, adjustable front sway bar, alignment maxing out negative front camber. BOOM.

02-26-2013, 05:37 PM	#11
fredk Member Join Date: Dec 2012 Drives: FFR Cobra, RF'93 FB, 95 Miata, FR-S Location: MD Posts: 63 Thanks: 0 Thanked 12 Times in 9 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	RPF/1's weigh 4lbs a corner less than my stock wheels and tires, and that's with 235/40 Z2's. I was also surprised to see that my car weighed 2680 with 3/4 tank of gas. Sam? What happened to the not giving all the info away???

02-26-2013, 05:59 PM	#12
RandyP Member Join Date: Jun 2012 Drives: Asphalt FRS Location: Keystone State Posts: 15 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Kosei K4R are only 14 lbs and you can use a spacer if you want to max out the track width.

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