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Old 02-22-2012, 04:11 PM   #1
Scooby South
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Default BRZ ST(X) Build

Ok...so I am first in line at my local dealer to buy a BRZ..
can't wait...went to Detroit..and Chicago to get/see info on the BRZ/FRS
First off...Fairly impressed with most things on the BRZ...I Plan to AutoCross it Nationally with Bart Hockerman in STX Class...It seems that I will be one of the first to try and make this thing competitive..I have lots of backing to ensure its competitiveness...
*Kartboy
*Nameless Performance components and Tuning service.
*KW Suspension
*Strano Performance
*SubyDude/Wheeldude
*and Various other Whiteline goodies etc....
and a couple of others to fill in the gaps...

Chances are...this car is 'probably' going to C Stock ...and ST R or X depending on how it drives when the SAC drives it... I think it will be competitive in either class.

What we know:
-Late Model WRX Rear Suspension, Where Rear Sways and Coilovers should be no problem bolting right up. what we don't know...is what the front Suspension will have, stock, for adjustment ..guess we will find out.

-5x100 boltpattern....be that as it may...deal with it... most likely choice for wheels for me....17x9 with a 43 offset should fit the bill nicely.

-Starting off with a mild 245/40/17 tire to begin with (HanKook R-S3's) Class rules will allow a 255 in STR and 265 in STX...that should fill in the wheelwells

-Subaru and Scion are bragging about the handling of this Platform...I will make it better. KW variant 3's Dual Adjustable Suspension with Camber plates are in the Plan...the big Question is Spring rates...400 frt and 325 rear....

-Weight is 2762 lbs seems to be advertised weight...plan is to get it down to about 2600 in race trim including getting rid of the rear muffler altogether and just putting a turndown or a kick on it for weight reduction..

-Torsion Rear LSD..Will be changed out to Gaurd Transmission FULL LSD... Guard Transmission... Very Prominent in ALMS and Grand Am Racing

-Steering is Rear Steer vs. Front Steer normally found on Subaru...so when you add camber....usually it toes' out the alignment...for general purposes...now. with the rear steer it should toe 'in'...sooo physical alignment will now become the norm at events...we'll see

Purposed Mods:

2013 BRZ Limited (yes with all the goodies...for resale value later)
Strano Performance KW Suspension 400lb front, 325lb rear
Strano Performance Adjustable Swaybars
various Kartboy bushings, Pully and sway bar links.
Various other Whiteline Suspension Bushings... LCA, RCA, Etc
17x9 42 offset Wheels
245/40/17 Hankook R-S3's (Already have)
17x9 45 offset 2nd set of wheels
255/40/17 Dunlap Direzza z2
Frt Camber plates
Guard Transmission Custom Mech LSD
Stainless brake lines
Motul Fluids

That would Get me started...
thoughts???

Sorry for the book

Bill

waiting in the wings..


Last edited by Scooby South; 03-01-2013 at 09:08 PM.
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Old 02-22-2012, 04:30 PM   #2
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So being first in line did you already order it?
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Old 02-22-2012, 04:30 PM   #3
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So being first in line did you already order it?
March 1st..
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Old 02-22-2012, 04:34 PM   #4
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I'm going to subscribe to this thread.

I have plans of picking this up as soon as its available also. I also have plans to autocross it here locally though not through SCCA. There has been a bit of discussion between me and some other local gear heads about what class this will end up in and we're also thinking C-stock or lower considering the STi is A-stock and the WRX is B-stock. The BRZ is rear wheel drive and N/A. I'm liking how its going to pax.

As far as build for autocross, obviously your looking at larger competition groups so you need it as prepped as you can.

I'm going to run the first year stock to see how it handles before making changes.
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Old 02-22-2012, 04:42 PM   #5
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Originally Posted by Mavrik View Post
I'm going to subscribe to this thread.

I have plans of picking this up as soon as its available also. I also have plans to autocross it here locally though not through SCCA. There has been a bit of discussion between me and some other local gear heads about what class this will end up in and we're also thinking C-stock or lower considering the STi is A-stock and the WRX is B-stock. The BRZ is rear wheel drive and N/A. I'm liking how its going to pax.

As far as build for autocross, obviously your looking at larger competition groups so you need it as prepped as you can.

I'm going to run the first year stock to see how it handles before making changes.
/agreed

I'm considering trading my 04 for it and keeping it stock for probably a year.. I'm trying to figure out how I can keep my 04 BBS wheels to throw on it though
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Old 02-22-2012, 04:58 PM   #6
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This is a lame duck thread. Know how I know? You listed James Wilson as your co-driver. We all know that guy is just a Forum Wars "TV racer" and overall hack with no measurable talent. And you stole his name to get attention. Really? Really.










Okay, not really. I keed, I keed! Looking forward to seeing how you guys make out with this. I tend to not be an early adopter, but I would have loved the challenge of being one of the first to figure things out. Good luck with the build, but wait until you actually get the car and start doing stuff before posting more. kthxbai and good luck.
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Old 02-22-2012, 05:04 PM   #7
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Originally Posted by piknockout View Post
This is a lame duck thread. Know how I know? You listed James Wilson as your co-driver. We all know that guy is just a Forum Wars "TV racer" and overall hack with no measurable talent. And you stole his name to get attention. Really? Really.










Okay, not really. I keed, I keed! Looking forward to seeing how you guys make out with this. I tend to not be an early adopter, but I would have loved the challenge of being one of the first to figure things out. Good luck with the build, but wait until you actually get the car and start doing stuff before posting more. kthxbai and good luck.
HA...
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Old 02-23-2012, 07:53 AM   #8
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Quote:
Originally Posted by piknockout View Post
This is a lame duck thread. Know how I know? You listed James Wilson as your co-driver. We all know that guy is just a Forum Wars "TV racer" and overall hack with no measurable talent. And you stole his name to get attention. Really? Really.
And that was only after yours truly passed down the opportunity.



How do you rate NOW James?


















Kidding. Can't wait to see how it goes this year.

--kC
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Old 02-23-2012, 10:40 AM   #9
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Originally Posted by KC View Post
And that was only after yours truly passed down the opportunity.



How do you rate NOW James?


Kidding. Can't wait to see how it goes this year.

--kC
I did ...for sure... I want someone I can trust with the setup of the car... figure the first year...will be somewhat a wash...
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Old 02-23-2012, 12:29 PM   #10
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Quote:
Originally Posted by piknockout View Post
This is a lame duck thread. Know how I know? You listed James Wilson as your co-driver. We all know that guy is just a Forum Wars "TV racer" and overall hack with no measurable talent. And you stole his name to get attention. Really? Really.










Okay, not really. I keed, I keed! Looking forward to seeing how you guys make out with this. I tend to not be an early adopter, but I would have loved the challenge of being one of the first to figure things out. Good luck with the build, but wait until you actually get the car and start doing stuff before posting more. kthxbai and good luck.
If it ended up in STX the plot could thicken...(no swappin' cars if it rains at Nats, James, lol)


Yeah, that James guy, not even a very nice guy in my experience...
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Old 02-22-2012, 05:03 PM   #11
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With the new Stock 'tire' class this year, thats a viable option...but still should be competitive whatever class its going to...I have 17x7 BBS option wheels...with half worn 235/40/17 RE01r's....which I will throw on initially..to get a good feel for the car... since the FR-S is going to have stiffer dampers and softer springs than the BRZ ..I would think the Scion will turn-in better than the BRZ because of that... again we'll see

Bill
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Old 02-22-2012, 07:15 PM   #12
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Can't wait to see the finished project!

Last edited by Pacobeagle; 02-22-2012 at 07:28 PM.
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Old 02-22-2012, 07:51 PM   #13
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New Lid..coming to life...couple of revisions..and this will be real..

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Old 02-24-2012, 08:24 PM   #14
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New Lid..coming to life...couple of revisions..and this will be real..

very nice mate
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Old 02-22-2012, 07:52 PM   #15
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sooo..... can't wait for the season to start..
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Old 02-22-2012, 08:32 PM   #16
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I dunno about the 8k/8k spring setup, being a RWD car. You may wanna take a look into what other similar platforms are running (or maybe I'm way offbase and need to look myself!).

I think its awesome to have the support to get the car prepped straight away, and with your commitment to the season and beyond....I see success on the horizon!

I'm going to call and setup speedtraps for James, so he'll get locked up in the slammer and you'll need a last minute co-driver!!!

Jay
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Old 02-22-2012, 09:14 PM   #17
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Originally Posted by Storm View Post
I dunno about the 8k/8k spring setup, being a RWD car. You may wanna take a look into what other similar platforms are running (or maybe I'm way offbase and need to look myself!).

I think its awesome to have the support to get the car prepped straight away, and with your commitment to the season and beyond....I see success on the horizon!

I'm going to call and setup speedtraps for James, so he'll get locked up in the slammer and you'll need a last minute co-driver!!!

Jay
I sure hope so....... have to start somewhere... thanks for the support....I sure hope it pays off...(this one is on my bucket list)..

Maybe I will get a co-driver when James can't make it.. whatcha think???

Bill
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Old 02-23-2012, 11:13 AM   #18
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Originally Posted by Scooby South View Post
I sure hope so....... have to start somewhere... thanks for the support....I sure hope it pays off...(this one is on my bucket list)..

Bill
For reference, the Miatas in STS usually run 700F and 450R with no rear bar and the "race" RB front bar (hollow 1.125 OD .188 wall). Motion ratios are .69F and .75R (that's from memory on which end, but I'm pretty sure the numbers are correct).

STR S2000's have .7F and .67R motion ratios, big front bar, small or no rear bar, but their spring rates seem to vary a lot more based on driver preference. Polling a few friends in STR showed a range of 600-1100F and 500-1000 rear. To me that says spring split isn't as big as the miata, but it's still 100ish lbs (before motion ratio) different. The lightest STR cars seem to hover around 2650, so you should be right there, or just under for weight.

Not that I have any knowledge of RWD outside of FS Mustangs and STS Miatas, but personally I'd try something like 600F 700R (assuming the rear motion ratio is in the .7 range). Especially if you are going to throw a proper clutch pack diff in the back. The FSB is a bit of a mystery, but should be solved quickly by one of your "partners"

I'm on the fence about this being an STR car. I think it would be a contender in STX with the WRX and RX8, but I think the lack of power in comparison to the S2k and front suspension design would be a pretty big hurdle to overcome. I'd put it on par with the NB miatas in STR. Still, good luck! I'll enjoy reading the progress/updates!
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Old 02-23-2012, 11:47 AM   #19
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For reference, the Miatas in STS usually run 700F and 450R with no rear bar and the "race" RB front bar (hollow 1.125 OD .188 wall). Motion ratios are .69F and .75R (that's from memory on which end, but I'm pretty sure the numbers are correct).

STR S2000's have .7F and .67R motion ratios, big front bar, small or no rear bar, but their spring rates seem to vary a lot more based on driver preference. Polling a few friends in STR showed a range of 600-1100F and 500-1000 rear. To me that says spring split isn't as big as the miata, but it's still 100ish lbs (before motion ratio) different. The lightest STR cars seem to hover around 2650, so you should be right there, or just under for weight.

Not that I have any knowledge of RWD outside of FS Mustangs and STS Miatas, but personally I'd try something like 600F 700R (assuming the rear motion ratio is in the .7 range). Especially if you are going to throw a proper clutch pack diff in the back. The FSB is a bit of a mystery, but should be solved quickly by one of your "partners"

I'm on the fence about this being an STR car. I think it would be a contender in STX with the WRX and RX8, but I think the lack of power in comparison to the S2k and front suspension design would be a pretty big hurdle to overcome. I'd put it on par with the NB miatas in STR. Still, good luck! I'll enjoy reading the progress/updates!
Good info to start with..I appreciate that..... from what I have Read, The OS Giken Rear Diff will put a push in the car upon turn-in ...so the rear springs were upped and solved the problem...I fully expect to have "Growing Pains" as with any new car... I can only hope that parts become easily accessable..and it becomes the Scalpel that I know it can be...

Thanks again for the info...might have to contact the RWD MASTER...Mr Strano and see what he suggests..

Bill
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Old 03-02-2012, 02:20 PM   #20
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Originally Posted by subydude View Post
For reference, the Miatas in STS usually run 700F and 450R with no rear bar and the "race" RB front bar (hollow 1.125 OD .188 wall). Motion ratios are .69F and .75R (that's from memory on which end, but I'm pretty sure the numbers are correct).
Just a small correction, but I have it on good authority that the ratios are 0.66 and 0.72.

Other than that, Ive enjoyed reading this thread.
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Old 02-22-2012, 08:56 PM   #21
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I am with jay on the springs. Pretty typical s2000 / miata set up says stiffer in the front but neither of those cars have struts in the front either. So perhaps less of a spring rate differential.

I am so on the fence of trying to sell my 2011 wrx to get a BRZ. I was even thinking mt GTWORX bilsteins just might bolt on!

As car enthusiasts I feel we are all obligated to buy this car as a thanks for a car company building something fun that doesnt cost more then a years salary.
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Old 02-22-2012, 09:17 PM   #22
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I am with jay on the springs. Pretty typical s2000 / miata set up says stiffer in the front but neither of those cars have struts in the front either. So perhaps less of a spring rate differential.

I am so on the fence of trying to sell my 2011 wrx to get a BRZ. I was even thinking mt GTWORX bilsteins just might bolt on!

As car enthusiasts I feel we are all obligated to buy this car as a thanks for a car company building something fun that doesnt cost more then a years salary.
Absolutely... AGREED...... and like I say..have to start somewhere...I figure a good year of development should start to show dividends later.... that and some good input should make this thing competitive...I secretly want to be known as Guru on this thing..

Bill
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Old 02-22-2012, 09:17 PM   #23
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be interesting for sure.... i too after seeing/driving one might get a brz but in 2014 model.
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Old 02-22-2012, 10:38 PM   #24
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You're well on your way Bill.....

What I personally suggest, is corner weight the car as is, then figure a stiffness increase that stays close to the same percentages. Use the year to dial it in and maybe even get it close enough to optimal for nats in Sept.

Jay
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Old 02-23-2012, 10:54 AM   #25
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When are you expecting to take delivery of it?
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