Beautiful engine sound past 4k with OFT 93 Stage 1 tune - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

orangespark · 10-05-2015, 12:31 PM

Flashed the OFT Stage 1 tune last week. It might be just in my head but I've noticed when I rev past 4k there's a different powerful sound the engine makes.
It's not a deep rumble, but a lighter sound. Almost like fuel injectors working their way.

Anyone else get this?
I do feel the torque dip is better now.

aagun · 10-05-2015, 12:42 PM

thats AVCS advancing

orangespark · 10-05-2015, 12:54 PM

Ohh didn't notice that before the tune. Just in my head then I guess.

JB86'd · 10-05-2015, 02:06 PM

It's not in your head..the OFT maps use more aggresive AVCS mapping

Shiv@Openflash · 10-05-2015, 02:46 PM

I suggest confirming that there is no small animal trapped in your airbox

orangespark · 10-05-2015, 03:04 PM

Didn't know the AVCS timing were controlled by the ECU. I thought variable timings were controlled mechanically like my old civic without input from the on-board computer. Thanks for the info guys.
Time to feed the hamster running my airbox

10-05-2015, 12:31 PM	#1
orangespark Member Join Date: Aug 2015 Drives: White Frs AT Location: Toronto Posts: 66 Thanks: 38 Thanked 13 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Beautiful engine sound past 4k with OFT 93 Stage 1 tune Flashed the OFT Stage 1 tune last week. It might be just in my head but I've noticed when I rev past 4k there's a different powerful sound the engine makes. It's not a deep rumble, but a lighter sound. Almost like fuel injectors working their way. Anyone else get this? I do feel the torque dip is better now.

10-05-2015, 02:06 PM	#4
JB86'd Senior Member Join Date: Oct 2013 Drives: JAWS Location: socal Posts: 703 Thanks: 753 Thanked 437 Times in 224 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	It's not in your head..the OFT maps use more aggresive AVCS mapping __________________

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10-05-2015, 12:42 PM	#2
aagun Senior Member Join Date: Nov 2012 Drives: 86 Location: uae Posts: 403 Thanks: 202 Thanked 67 Times in 56 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	thats AVCS advancing

10-05-2015, 12:54 PM	#3
orangespark Member Join Date: Aug 2015 Drives: White Frs AT Location: Toronto Posts: 66 Thanks: 38 Thanked 13 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Ohh didn't notice that before the tune. Just in my head then I guess.

10-05-2015, 02:46 PM	#5
Shiv@Openflash Senior Member Join Date: Sep 2013 Drives: 2013 FRS Location: SF, CA Posts: 2,629 Thanks: 1,055 Thanked 5,469 Times in 1,494 Posts Mentioned: 605 Post(s) Tagged: 9 Thread(s)	I suggest confirming that there is no small animal trapped in your airbox

10-05-2015, 03:04 PM	#6
orangespark Member Join Date: Aug 2015 Drives: White Frs AT Location: Toronto Posts: 66 Thanks: 38 Thanked 13 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Didn't know the AVCS timing were controlled by the ECU. I thought variable timings were controlled mechanically like my old civic without input from the on-board computer. Thanks for the info guys. Time to feed the hamster running my airbox

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