Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Tracking / Autocross / HPDE / Drifting (https://www.ft86club.com/forums/forumdisplay.php?f=39)
-   -   Got a track related question? I'll try to answer. (https://www.ft86club.com/forums/showthread.php?t=38926)

ayau 07-09-2013 06:09 PM

Quote:

Originally Posted by CSG Mike (Post 1056090)
Stop driving the car and sell it. :lol:

Okay, seriously, don't redline. If you do, roll onto the throttle slowly after you shift.

That has crossed my mind many times. I've always debated on getting a CR instead. :thumbup:

If we can confirm that this is definitely the root cause of these engine failures, and Toyota/Subaru is unwilling to band-aid it with an ECU update, then there's really no point in keeping the car. :(

ajcacio 07-09-2013 06:30 PM

Quote:

Originally Posted by CSG Mike (Post 1056088)
It won't result in the fastest lap times, but you'll have a more forgiving car (more cornering grip).

Competitiveness really depends on who your local competition is.

Thanks for your advice. I'm very humbly returning to racing after a several year hiatus, more forgiving sounds like exactly what I need. Could you explain briefly why a smaller tire is faster?

CSG Mike 07-09-2013 06:31 PM

Quote:

Originally Posted by ayau (Post 1056127)
That has crossed my mind many times. I've always debated on getting a CR instead. :thumbup:

If we can confirm that this is definitely the root cause of these engine failures, and Toyota/Subaru is unwilling to band-aid it with an ECU update, then there's really no point in keeping the car. :(

That... remains to be seen. I sincerely hope they do, cuz without, the platform is doomed. The majority of the track regulars have already had the issue.

ayau 07-09-2013 06:37 PM

Quote:

Originally Posted by CSG Mike (Post 1056199)
That... remains to be seen. I sincerely hope they do, cuz without, the platform is doomed. The majority of the track regulars have already had the issue.

Great, that's going to artificially increase the demand/price of the S2k even more. :lol:

Wonder if the 91 octane gas (highest available in Cali) has anything to do with it. Maybe it's causing more detonation compared to 93?

GTM_Challenge 07-09-2013 06:38 PM

Quote:

Originally Posted by ayau (Post 1056219)
Great, that's going to artificially increase the demand/price of the S2k even more. :lol:

Wonder if the 91 octane gas (highest available in Cali) has anything to do with it. Maybe it's causing more detonation compared to 93?

I'm having issues on track even with 93. :(

CSG Mike 07-09-2013 06:43 PM

Quote:

Originally Posted by ayau (Post 1056219)
Great, that's going to artificially increase the demand/price of the S2k even more. :lol:

Wonder if the 91 octane gas (highest available in Cali) has anything to do with it. Maybe it's causing more detonation compared to 93?

Our final failure happened while on 100 octane unleaded... we put it in as a precaution since it was pretty warm.

Hanakuso 07-09-2013 07:48 PM

Quote:

Originally Posted by CSG Mike (Post 1056199)
That... remains to be seen. I sincerely hope they do, cuz without, the platform is doomed. The majority of the track regulars have already had the issue.

I'm sure this is true unless they come out with a permanent fix. I really hope the ECU flash fixes it or i'm guessing 1st year models will be worthless.

Good thing seems like it's a relatively new problem that hopefully is under investigation.

Embarrassed 07-12-2013 01:39 AM

How's fuel starvation?

CSG Mike 07-12-2013 04:17 PM

Quote:

Originally Posted by Embarrassed (Post 1063373)
How's fuel starvation?

Car runs fine, even with the light on!

Can't say the same for those running E85 and/or aftermarket tunes and fuel pumps.

Definitely a no-no with FI.

Dave-ROR 07-12-2013 07:43 PM

Quote:

Originally Posted by Hanakuso (Post 1056408)
I'm sure this is true unless they come out with a permanent fix. I really hope the ECU flash fixes it or i'm guessing 1st year models will be worthless.

Good thing seems like it's a relatively new problem that hopefully is under investigation.

I've been resistant to go with a tune for warranty reasons but it kinda seems to be the best step so far :(

GTM_Challenge 07-12-2013 07:48 PM

Quote:

Originally Posted by Dave-ROR (Post 1065307)
I've been resistant to go with a tune for warranty reasons but it kinda seems to be the best step so far :(

That's what made me do it! :party0030:

Hanakuso 07-12-2013 09:25 PM

Quote:

Originally Posted by Dave-ROR (Post 1065307)
I've been resistant to go with a tune for warranty reasons but it kinda seems to be the best step so far :(

Both ways seem to suck. Basically own a gimp sports car till it's fixed or get a tune and deal with warranty excuses from dealerships down the road.

Both ways you have to think if your car will have long term effects from damage that possibly have already occurred

Thanks Obama

robispec 07-14-2013 08:21 AM

Quote:

Originally Posted by CSG Mike (Post 1056239)
Our final failure happened while on 100 octane unleaded... we put it in as a precaution since it was pretty warm.

you injector seal was already bad at this point adding octane after the seal failure does nothing to protect the engine.

CSG Mike 07-15-2013 12:34 PM

Quote:

Originally Posted by robispec (Post 1068034)
you injector seal was already bad at this point adding octane after the seal failure does nothing to protect the engine.

It went bad on a day where we were running roughly a 1:1 mix of 91 and 100, so I'm willing to say no correlation between octane and DI seal failure


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