STX Rules and Setup Questions - Page 142 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

RTR · 02-23-2016, 01:48 PM

Is e85 legal in CSP? And is it really possible to compete with the miatas in CSP?

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e1_griego · 02-23-2016, 01:51 PM

Yes and probably not.

RedBRZ80 · 02-26-2016, 06:05 AM

You can't get a 86 light enough to run with a CSP Miata at full nationals prep.

xwd · 02-28-2016, 08:01 PM

What are guys running for tire pressures on the RE71s? I have been running 30/28 for the most part, they don't quite roll over to the arrows. Pretty standard setup with MCS coilovers (7K F/R) and WL 20mm front bar, not on the stiffest setting. I was dealing with a bit of corner exit oversteer and instability in slaloms today's event, although at the T&T yesterday it was pretty good. Or my driving was just bad.

RTR · 02-28-2016, 09:15 PM

Get mine tmrw but the one local in an 86 on re-71r is running 25/27.

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jbailey8748 · 02-28-2016, 09:49 PM

That's about what I'm on in rivals

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feldy · 02-29-2016, 01:42 PM

Quote:

Originally Posted by BlaineWasHere

There aren't any really fast STX or CS twins without a front bar. It's not that the car can't be balanced or quick without it. But it's faster with it.

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Maybe. It really depends on where the car is. Where is it pushing in the corner or over steering in the corner.

I like to get the car doing what I want first with out the bars. And if I need that little bit of help.. then do the bars.

DocWalt · 02-29-2016, 02:14 PM

After driving my car hard over the weekend I can see why people want the front bar so badly. The car feels like it's "rolling over" on the front end. Kinda strange. I'm going to do a few events on it and see how it feels on less hilly surfaces but I'm expecting to have a 20mm Whiteline bar before the season is out.

Shark_Bait88 · 02-29-2016, 02:20 PM

Quote:

Originally Posted by DocWalt

After driving my car hard over the weekend I can see why people want the front bar so badly. The car feels like it's "rolling over" on the front end. Kinda strange. I'm going to do a few events on it and see how it feels on less hilly surfaces but I'm expecting to have a 20mm Whiteline bar before the season is out.

Test fit my new wheels (17x8 RS-Watanabe F8s) and tires (ZII Star Spes) this weekend, and noticed the same thing. I'm thinking a 20mm Whiteline bar isn't too far off in my future either.

Silver Ignition · 02-29-2016, 04:05 PM

I have the Perrin 22mm in the front and it's night and day in the slaloms.

jbailey8748 · 02-29-2016, 04:07 PM

I have the whitelines 22. We just had a test and tune and I was able to take a little over a second off my time ,on a 30second course, just by moving to the hard setting. Turn in was way faster so the first few runs after I made the change was like driving a different car.

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DocWalt · 02-29-2016, 04:35 PM

Do you guys have steady state understeer with those front bars? Adding understeer on track is something I very much do NOT want to do.

jbailey8748 · 02-29-2016, 04:41 PM

No undesteer. I almost have it completley dialed out with negative camber and 22mm bar. It seems backwards to put a big bar on the front to gain traction up front but the way a macpherson suspension works your making it harder to gain positive camber under compression which results in more contact patch on the ground for longer in a turn

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DocWalt · 02-29-2016, 05:01 PM

I understand that concept. I'm just too used to FWD where a big front bar kills you, you can't put power down in corners because it lifts the inside front. The hot setup there is stiffer springs and less bar. I've gotta wrap my head around the front wheels just sorta hanging out

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02-23-2016, 01:48 PM	#1975
RTR Member Join Date: Jun 2014 Drives: monogram raven Location: Bama Posts: 47 Thanks: 16 Thanked 15 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Is e85 legal in CSP? And is it really possible to compete with the miatas in CSP? Sent from my XT1585 using Tapatalk

02-23-2016, 01:51 PM	#1976
e1_griego Senior Member Join Date: Jul 2015 Drives: Many Location: Independence, Ore. Posts: 704 Thanks: 228 Thanked 391 Times in 235 Posts Mentioned: 9 Post(s) Tagged: 2 Thread(s)	Yes and probably not.

02-28-2016, 08:01 PM	#1978
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 860 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	What are guys running for tire pressures on the RE71s? I have been running 30/28 for the most part, they don't quite roll over to the arrows. Pretty standard setup with MCS coilovers (7K F/R) and WL 20mm front bar, not on the stiffest setting. I was dealing with a bit of corner exit oversteer and instability in slaloms today's event, although at the T&T yesterday it was pretty good. Or my driving was just bad.

02-28-2016, 09:15 PM	#1979
RTR Member Join Date: Jun 2014 Drives: monogram raven Location: Bama Posts: 47 Thanks: 16 Thanked 15 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Get mine tmrw but the one local in an 86 on re-71r is running 25/27. Sent from my XT1585 using Tapatalk

02-29-2016, 02:14 PM	#1982
DocWalt Senior Member Join Date: Oct 2013 Drives: '22 BRZ Location: PA Posts: 1,833 Thanks: 2,300 Thanked 1,473 Times in 767 Posts Mentioned: 24 Post(s) Tagged: 2 Thread(s)	After driving my car hard over the weekend I can see why people want the front bar so badly. The car feels like it's "rolling over" on the front end. Kinda strange. I'm going to do a few events on it and see how it feels on less hilly surfaces but I'm expecting to have a 20mm Whiteline bar before the season is out.

02-29-2016, 04:35 PM	#1986
DocWalt Senior Member Join Date: Oct 2013 Drives: '22 BRZ Location: PA Posts: 1,833 Thanks: 2,300 Thanked 1,473 Times in 767 Posts Mentioned: 24 Post(s) Tagged: 2 Thread(s)	Do you guys have steady state understeer with those front bars? Adding understeer on track is something I very much do NOT want to do.

02-29-2016, 05:01 PM	#1988
DocWalt Senior Member Join Date: Oct 2013 Drives: '22 BRZ Location: PA Posts: 1,833 Thanks: 2,300 Thanked 1,473 Times in 767 Posts Mentioned: 24 Post(s) Tagged: 2 Thread(s)	I understand that concept. I'm just too used to FWD where a big front bar kills you, you can't put power down in corners because it lifts the inside front. The hot setup there is stiffer springs and less bar. I've gotta wrap my head around the front wheels just sorta hanging out

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