STX Rules and Setup Questions - Page 60 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

jprice130 · 05-08-2014, 09:42 PM

Quote:

Originally Posted by Wepeel

I've seen oil temps around 220-230 on a hot day during autocross, not a whole lot hotter than what you'd see on the highway, and nowhere near what you would see on a track (not sure if they pull timing either).

Have you had a chance to log the stock tune to see if it behaves the same way during an autocross run? I know in my STI the normal road log (pull from 2000 to redline) rarely showed any knock events but during my autocross runs I'd get -1.4 and -2.8's popping up, FBKC and FLKC, and really nasty stuff bouncing the limiter (up to 8 degrees of correction). Never saw IAM drop though.

I never got any AutoX datalogs while I was on the stock tune, so unfortunately, I don't have any comparisons. I may try flashing back to the stock tune next time we have an event with fun runs and see how that looks.

It makes me feel a little better that your STI saw some knock on course when road logs looked fine. I'm kind of hoping that the abruptness of AutoX just messes with the knock sensor and probably everyone has the same problem.

Kido1986 · 05-08-2014, 09:51 PM

On days in the 70Fs, I've seen 220F+ at autocross. Highway temps are in the low 200Fs. I'm afraid to see what my track temps in Florida Summer are, haven't tracked in a while.

Does it really not pull timing for oil temp? Car just feels sluggish after hard runs on a hot day. Maybe it's mental.

jprice130 · 05-08-2014, 10:28 PM

Quote:

Originally Posted by Kido1986

On days in the 70Fs, I've seen 220F+ at autocross. Highway temps are in the low 200Fs. I'm afraid to see what my track temps in Florida Summer are, haven't tracked in a while.

Does it really not pull timing for oil temp? Car just feels sluggish after hard runs on a hot day. Maybe it's mental.

In the current RomRaider defs, I have not seen any timing compensation for oil temps. The ECU could have a compensation for it but it's just not exposed in RomRaider (obviously still learning as I go here).

Even if there isn't automatic timing retardation for oil temps, high ambient temps and a hot engine will still contribute to high intake temps. Those high intake temps will pull timing, so it's highly possible you're noticing that and are not mental.

RiskyTrousers · 05-12-2014, 11:50 PM

To our fellow rules experts,

Now that the TRD steering wheel is available in the US via release series 1.0, can we swap it into our non release series FRS and remain STX legal?

Turkish · 05-13-2014, 06:18 AM

So, after installing the Bilstein B8 shocks with RCE Tarmac springs, I've decided that reinforcing the drivetrain is my next step. Other than Whiteline, are there any other STX legal bushings that I should look at? Also, any suggestions for motor and tranny mounts that follow the weight rules for mounts? So far from what I have seen A) Whiteline seems to be the only company I have seen that offers bushings without additional metal and B) I haven't seen any weights listed for engine and transmission mounts... and for that matter, I am not sure how much the oem mounts weigh either... Thanks in advance!

autoXracer · 05-13-2014, 08:48 AM

I would like to know this too.

Also is it important to add suspension bushings first before the motor/tranny bushings? If so which are most important (maybe subframe inserts first)?

PoorMansRacing · 05-13-2014, 08:59 AM

Quote:

Originally Posted by Turkish

So, after installing the Bilstein B8 shocks with RCE Tarmac springs, I've decided that reinforcing the drivetrain is my next step. Other than Whiteline, are there any other STX legal bushings that I should look at? Also, any suggestions for motor and tranny mounts that follow the weight rules for mounts? So far from what I have seen A) Whiteline seems to be the only company I have seen that offers bushings without additional metal and B) I haven't seen any weights listed for engine and transmission mounts... and for that matter, I am not sure how much the oem mounts weigh either... Thanks in advance!

Perrin makes the only STX-legal motor mounts. The Whiteline trans bushing mount is your best bet. Also, look into Whiteline's steering rack, subframe, and diff bushings.

PoorMansRacing · 05-13-2014, 09:00 AM

Quote:

Originally Posted by autoXracer

I would like to know this too.

Also is it important to add suspension bushings first before the motor/tranny bushings? If so which are most important (maybe subframe inserts first)?

Not necessarily. But if you upgrade your trans mount, I recommend upgrading your motor mounts at the same time to divert the vibrations to the frame (instead of the motor). Subframe and steering rack bushings are great!

mrazny · 05-13-2014, 11:19 AM

Quote:

Originally Posted by RiskyTrousers

To our fellow rules experts,

Now that the TRD steering wheel is available in the US via release series 1.0, can we swap it into our non release series FRS and remain STX legal?

Has nothing to do with STX. There simply is no ST allowance for Airbag steering wheels. None.

What you may end up seeing is people doing package converts, but it's thorough as hell (and eligible for all classes). Also, series 1.0 didn't exist with a 2013 model, so no 2013's are eligible to package convert. IF the series 1.0 releases as a 2014 model, then 2014's can package convert. And then it's still scion only, no Subarus. If it's a 2015 release, and for some reason you'd buy a 2015 FR-S, but not the Series 1.0, but then want to full package convert? Sounds pretty masochistic.

Its a steering wheel though, there's not really anything wrong with the twins steering wheel. Try driving an 325 e36 before complaining about steering wheels

Kido1986 · 05-13-2014, 11:47 AM

The twins have the nicest OEM wheel I've held. NO EFFING BUTTONS!

The new WRX wheel would be perfect with an option for no buttons

tahdizzle · 05-13-2014, 11:50 AM

Quote:

Originally Posted by Kido1986

The twins have the nicest OEM wheel I've held. NO EFFING BUTTONS!

The new WRX wheel would be perfect with an option for no buttons

I personally like flat bottom steering wheels.

Kostamojen · 05-15-2014, 12:46 AM

Quote:

Originally Posted by BRZTimeTrials

Perrin makes the only STX-legal motor mounts.

Are the Group-N mounts not legal? Im pretty sure they are.

PoorMansRacing · 05-15-2014, 09:20 AM

Quote:

Originally Posted by Kostamojen

Are the Group-N mounts not legal? Im pretty sure they are.

I forgot about those. Yeah, I believe those are legal.

FYI - I know a lot of STX drivers rocking the Cusco solid mounts, but FT86SpeedFactory confirmed they have slightly more metal content than OEM.

Turkish · 05-15-2014, 04:26 PM

Quote:

Originally Posted by PoorMansRacing

I forgot about those. Yeah, I believe those are legal.

FYI - I know a lot of STX drivers rocking the Cusco solid mounts, but FT86SpeedFactory confirmed they have slightly more metal content than OEM.

I thought the allowance for motor mounts specifically said material doesn't matter, they just can't weight less than OEM?

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05-12-2014, 11:50 PM	#830
RiskyTrousers Senior Member Join Date: Nov 2011 Drives: '87 Corolla GTS, '13 FR-S 6MT Location: United States Posts: 364 Thanks: 54 Thanked 146 Times in 67 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	To our fellow rules experts, Now that the TRD steering wheel is available in the US via release series 1.0, can we swap it into our non release series FRS and remain STX legal?

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