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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 02-18-2020, 11:00 PM   #99
smg1138
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Ride Height - Front Wheels 25" from floor to center of fender above wheel. Rear set for 1/8" Rake
Just curious, what made you decide on that ride height? I've gone back and forth between 24.75" and 25" up front with the same amount of rake. Having trouble deciding which to stick with for good though.
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Old 02-19-2020, 09:35 AM   #100
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Just curious, what made you decide on that ride height? I've gone back and forth between 24.75" and 25" up front with the same amount of rake. Having trouble deciding which to stick with for good though.
Lower you go you start putting more stress on rear axles. TBH I just used finger measurements to determine stuff and used some SWAG to get me there
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Old 02-19-2020, 12:01 PM   #101
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Here I copied and pasted my setup and updated some items:

2016 Scion FRS:

Suspension:
MCS 2W Remotes - Custom Revalve & Coated Piston
400/350# Rates
Raceseng Camber Plates/Raceseng 1" Top Hats in Rear
Front: -4.2* Camber, 0 Toe
Rear: -2.5* Camber, 1/16" Total In
Ride Height - Front Wheels 25" from floor to center of fender above wheel. Rear set for 1/8" Rake
Karwan FSB
Mann Rear Bar set of Stiff (I adjust all the time though). RacerX Endlinks
RacerX LCA
Whiteline Subframe Insert Bushings
STi Engine Mounts
Whiteline Rear Transmission Bushing Insert

Engine:
aFe Momentum Intake
JDL 4-2-1 Header
JDL Ultra Quiet FP/OP Combo w/Cat
Perrin 2.5" Exhaust
MotoEast/XeroLimit Custom Dyno Tune
Perrin Oil Cooler

Wheels/Tires/Misc
AP Racing BBK w/Ferodo DS2500s
RPF1s 17x9 +35 with 245/40/17 RivalS 1.5s + Yokohama AO52s
Antigravity 680CA Battery w/PFTuning Tray
Grimmspeed Master Cylinder Brace

I don't know if I'm forgetting something, I probably am
Thanks for sharing this, aside from tires coils and driver mods, what else do you think has the most impact/benefit?
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Old 02-19-2020, 02:26 PM   #102
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3. Setup (alignment, spring rates, bar, ride height, pressures, damper settings etc.)
4. Power
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Old 02-19-2020, 08:48 PM   #103
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Are the JDM underbody panels legal for STX?
I think they are now OEM equipment on the 2017+ 86/BRZ's
I don't think update/backdate is legal in STX.

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Tuesday/Thursday, Weds/Friday run order.
I would like that. Study and run one course and then have a day to study the other course.
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Old 02-20-2020, 07:49 PM   #104
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I don't think update/backdate is legal in STX.


I would like that. Study and run one course and then have a day to study the other course.
If the 2017+ MY car is legal why wouldn’t the parts from it be legal for updating 13-16 MY? All I am interested in are the under panels and 4.3 Differential.
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Old 02-20-2020, 09:54 PM   #105
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If the 2017+ MY car is legal why wouldn’t the parts from it be legal for updating 13-16 MY? All I am interested in are the under panels and 4.3 Differential.
No update or backdate is allowed. You can only use parts or accessories available for same model year.

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Old 02-20-2020, 10:43 PM   #106
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If the 2017+ MY car is legal why wouldn’t the parts from it be legal for updating 13-16 MY? All I am interested in are the under panels and 4.3 Differential.
This would move you to SP.

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Old 02-20-2020, 10:57 PM   #107
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If the 2017+ MY car is legal why wouldn’t the parts from it be legal for updating 13-16 MY? All I am interested in are the under panels and 4.3 Differential.
Update/backdate is much more complicated and expensive on other chassis, I'm glad it's not allowed in Street Touring.

Shorter final drive is seen as a disadvantage of the newer cars, there's enough high speed elements on the national stage (~60 mph) that the extra mph in 2nd can be worth a tenth or more unless you're brilliant at shifting. But if you're on small lots that rarely see 55+ then the shorter FD might be a bit useful assuming you get pinched elements that don't have you traction limited on corner exit.
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Old 02-21-2020, 07:17 AM   #108
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Understood, thanks guys
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Old 02-24-2020, 08:56 AM   #109
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For those of you with the Mann rear bar, how far does it sit from your muffler?

I planned on getting the Perrin catback, but ended up with the Invidia Q300 due to availability. I have maybe 1/8" to 1/4" clearance between the bar and the muffler.

I don't think that would hurt anything, but I'm sure that will make for an annoying sound. Trimming a bit off the washers (for the bolt that goes into the bushing bracket) would let me mount the bar a bit higher and possibly double my clearance.

Anybody deal with this and/or ditch the reinforcement blocks?
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Old 02-24-2020, 11:32 AM   #110
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For those of you with the Mann rear bar, how far does it sit from your muffler?

I planned on getting the Perrin catback, but ended up with the Invidia Q300 due to availability. I have maybe 1/8" to 1/4" clearance between the bar and the muffler.

I don't think that would hurt anything, but I'm sure that will make for an annoying sound. Trimming a bit off the washers (for the bolt that goes into the bushing bracket) would let me mount the bar a bit higher and possibly double my clearance.

Anybody deal with this and/or ditch the reinforcement blocks?
Reinforcement blocks is just proper shimming to put the bar in ideal location relative to the endlinks. It's not really much to reinforce (especially since the bar is softer than OE rate).

I'll take a picture, but the way the perrin muffler comes up into the central muffler it basically Us right there, so I'm pretty sure it's far away from any contact
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Old 02-24-2020, 01:12 PM   #111
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For those of you with the Mann rear bar, how far does it sit from your muffler?

I planned on getting the Perrin catback, but ended up with the Invidia Q300 due to availability. I have maybe 1/8" to 1/4" clearance between the bar and the muffler.

I don't think that would hurt anything, but I'm sure that will make for an annoying sound. Trimming a bit off the washers (for the bolt that goes into the bushing bracket) would let me mount the bar a bit higher and possibly double my clearance.

Anybody deal with this and/or ditch the reinforcement blocks?
I have at most 1/8" between my bar and muffler, got poly exhaust hangers and haven't had any issues with it hitting.
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Old 02-25-2020, 07:22 AM   #112
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So only had about 1mm clearance between bar and the piping to the muffler. Trimmed one side of the washer flat which let us mount the bushing bracket a little higher, giving about 9mm clearance. I think that's good, I hope.

My header came in last night, so hoping to get that in and get the car on the ground tonight. That'll give me about 2 weeks to deal with alignment and tune and getting tires mounted and whatnot before I leave for Dixie. May even get to hit the local at Bristol the week before, if work isn't looking too crazy.
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