How to run E85 on stock 86 BRZ FRS with OFT tune - Page 7 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

fretchh · 10-07-2014, 10:21 PM

When i purchased my BRZ it cams with nameless overpipe and axleback. I switched back to the stock muffler simply because it was too loud and I now feel the torque dip.

Can i safely assume that I will still be running the E85 stock brz tune? The overpipe is the only engine related mod that I have. If I choose to drop in a filter, will that still allow me to run the stock E85 map or will that put me to the STG 2 map?

Turdinator · 10-07-2014, 11:07 PM

Quote:

Originally Posted by fretchh

When i purchased my BRZ it cams with nameless overpipe and axleback. I switched back to the stock muffler simply because it was too loud and I now feel the torque dip.

Can i safely assume that I will still be running the E85 stock brz tune? The overpipe is the only engine related mod that I have. If I choose to drop in a filter, will that still allow me to run the stock E85 map or will that put me to the STG 2 map?

Stage 2 is for cattless headers.

Trettiosjuan · 10-08-2014, 03:37 AM

Stage 1 E85 map doesn't even exist. Stage 2 E85 also works on a stock car, unlike a stage2 gasoline there is no risk for knock on E85 and it will dial back automatically for the amount of oxygen that flows through the complete system (=AFR).

mid_life_crisis · 10-09-2014, 12:33 AM

I bit the bullet and went home the long way today so I could fill up with E85. I was on fumes when I pulled into the station. With the windows up, I started smelling something different within a couple of miles.
I haven't had the chance to get spirited with it yet, but my cruising trims look excellent.
I am worried about the smell though. Do I have an exhaust leak coming into the cabin?

Simon99 · 10-09-2014, 11:12 AM

So I filled with E85 did all the stopped, loved it and filled again with a big grin on my face.

But now with the temperature getting colder here, I'm having troubles starting the car, since it takes as much as 8 cranks.... Anything that can be edited inthe tables to I dunno send more fuel or increase ignition ? Thanks

Trettiosjuan · 10-09-2014, 11:16 AM

Quote:

Originally Posted by Simon99

So I filled with E85 did all the stopped, loved it and filled again with a big grin on my face.

But now with the temperature getting colder here, I'm having troubles starting the car, since it takes as much as 8 cranks.... Anything that can be edited inthe tables to I dunno send more fuel or increase ignition ? Thanks

Put in 5l of gasoline before you brim the tank with E85 (true 85%). This makes for E75 ish effectively. This will greatly improve cold starts, mine needs 1-2 cranks just above freezing...

mid_life_crisis · 10-09-2014, 05:27 PM

This morning it was mid fifties. First time with E85 and the first time I needed to crank it twice. Not an auspicious sign for cold weather usage.

Target70 · 10-09-2014, 05:50 PM

It's less noticeable if you park in the sun. I park under a car cover, and leave for work at 1pm, even if it is ~80 out when I go to leave, if it dropped down to ~60 the night before I have to crank multiple times. Just tried 1 gallon of 93 yesterday, it started up better this morning. But either the ecu is learning the new blend, or I forgot how rough the engine feels when not running 100% E85.

steve99 · 10-09-2014, 06:39 PM

Quote:

Originally Posted by Simon99

So I filled with E85 did all the stopped, loved it and filled again with a big grin on my face.

But now with the temperature getting colder here, I'm having troubles starting the car, since it takes as much as 8 cranks.... Anything that can be edited inthe tables to I dunno send more fuel or increase ignition ? Thanks

have a look in the oft tune tweaks thread you need to increase the Cranking IPW values, injector pulse width their is a link to thread on it you could also ask @Luckrider he did a bit of work on thiis with your e85

Luckrider · 10-09-2014, 11:36 PM

Quote:

Originally Posted by steve99

have a look in the oft tune tweaks thread you need to increase the Cranking IPW values, injector pulse width their is a link to thread on it you could also ask @Luckrider he did a bit of work on thiis with your e85

It has been a while since I played with that sort of thing, but I am back on e85 and my old changes still seem to be working well. The worst I have ever had it was 2 tries to fire. Usually it is vre-vre-vre-vroooommmmmmmm to start which is fast/easier than stock.

[ame="https://www.youtube.com/watch?v=mws6n7lW-8U"]Another cold start. Actual temp: 17Â° - YouTube[/ame]
The actual temp on this was 17.

Let me see if I can find some of my old tables.

Simon99 · 10-11-2014, 12:38 PM

Filmed my cold start this morning (I know, I know, the real problem here is vertical filming). It actually wasn't that bad this morning, but listen a 00:26 and tell me how good that sounds **cries**

filmed my cold start this morning (I know, I know, the real problem here is vertical filming). It actually wasn't that bad this morning, but listen a 00:26 and tell me how good that sounds **cries** it was 51 degrees here which is considered still pretty hot ..

[ame]http://youtu.be/qLLwu371iqc[/ame]

Target70 · 10-12-2014, 12:12 AM

Quote:

Originally Posted by Simon99

Filmed my cold start this morning (I know, I know, the real problem here is vertical filming). It actually wasn't that bad this morning, but listen a 00:26 and tell me how good that sounds **cries**

filmed my cold start this morning (I know, I know, the real problem here is vertical filming). It actually wasn't that bad this morning, but listen a 00:26 and tell me how good that sounds **cries** it was 51 degrees here which is considered still pretty hot ..

mine was doing the same thing, at 80 degrees after a 50 degree night. I think that knock you hear is a backfire, but I could be wrong.

Luckrider · 10-13-2014, 11:07 PM

Quote:

Originally Posted by Simon99

Filmed my cold start this morning (I know, I know, the real problem here is vertical filming). It actually wasn't that bad this morning, but listen a 00:26 and tell me how good that sounds **cries**

filmed my cold start this morning (I know, I know, the real problem here is vertical filming). It actually wasn't that bad this morning, but listen a 00:26 and tell me how good that sounds **cries** it was 51 degrees here which is considered still pretty hot ..

Quote:

Originally Posted by Target70

mine was doing the same thing, at 80 degrees after a 50 degree night. I think that knock you hear is a backfire, but I could be wrong.

More of an intake burp than a backfire, but it has been determined to be normal on the stock ROM and safe.

ZZT86 · 10-14-2014, 08:02 AM

Sounds like a mini backfire which I too have experienced in real cold temps with E85 only in tank. Mix to make E70 in those temps & you will be fine & dandy

10-09-2014, 12:33 AM	#88
mid_life_crisis Senior Member Join Date: May 2013 Drives: FR-S 10 #103 AT Location: NC Posts: 1,519 Thanks: 101 Thanked 599 Times in 347 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	I bit the bullet and went home the long way today so I could fill up with E85. I was on fumes when I pulled into the station. With the windows up, I started smelling something different within a couple of miles. I haven't had the chance to get spirited with it yet, but my cruising trims look excellent. I am worried about the smell though. Do I have an exhaust leak coming into the cabin? __________________ Necessity may be the mother of Invention but Desperation is quite often the father. “Sex is like Bridge. If you don't have a good partner, you'd better have a good hand.” - Mae West Papa said, "son there's a lot of evil temptations out there. Best to try 'em all so you know which ones to avoid."

10-09-2014, 05:27 PM	#91
mid_life_crisis Senior Member Join Date: May 2013 Drives: FR-S 10 #103 AT Location: NC Posts: 1,519 Thanks: 101 Thanked 599 Times in 347 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	This morning it was mid fifties. First time with E85 and the first time I needed to crank it twice. Not an auspicious sign for cold weather usage. __________________ Necessity may be the mother of Invention but Desperation is quite often the father. “Sex is like Bridge. If you don't have a good partner, you'd better have a good hand.” - Mae West Papa said, "son there's a lot of evil temptations out there. Best to try 'em all so you know which ones to avoid."

10-09-2014, 05:50 PM	#92
Target70 Senior Member Join Date: Dec 2013 Drives: 2013 Asphalt 6spd Location: Mid GA Posts: 783 Thanks: 265 Thanked 366 Times in 240 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	It's less noticeable if you park in the sun. I park under a car cover, and leave for work at 1pm, even if it is ~80 out when I go to leave, if it dropped down to ~60 the night before I have to crank multiple times. Just tried 1 gallon of 93 yesterday, it started up better this morning. But either the ecu is learning the new blend, or I forgot how rough the engine feels when not running 100% E85. __________________ Phantom ESC, OFH, OFT, K&N Drop in

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10-07-2014, 10:21 PM	#85
fretchh Member Join Date: Aug 2014 Drives: WRB BRZ Location: Detroit Posts: 90 Thanks: 7 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	When i purchased my BRZ it cams with nameless overpipe and axleback. I switched back to the stock muffler simply because it was too loud and I now feel the torque dip. Can i safely assume that I will still be running the E85 stock brz tune? The overpipe is the only engine related mod that I have. If I choose to drop in a filter, will that still allow me to run the stock E85 map or will that put me to the STG 2 map?

10-08-2014, 03:37 AM	#87
Trettiosjuan Senior Member Join Date: Jul 2012 Drives: GT86 Location: Northern Europe Posts: 357 Thanks: 292 Thanked 190 Times in 103 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Stage 1 E85 map doesn't even exist. Stage 2 E85 also works on a stock car, unlike a stage2 gasoline there is no risk for knock on E85 and it will dial back automatically for the amount of oxygen that flows through the complete system (=AFR).

10-14-2014, 08:02 AM	#98
ZZT86 Senior Member Join Date: Jul 2012 Drives: BR86 Location: Location Posts: 841 Thanks: 310 Thanked 146 Times in 114 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Sounds like a mini backfire which I too have experienced in real cold temps with E85 only in tank. Mix to make E70 in those temps & you will be fine & dandy

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