VVT Tuning Noise - ADDED: Comparison Video - Page 22 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Tromatic · 04-28-2014, 11:57 AM

Quote:

Originally Posted by regal

The problem with this on is you would have to drive x number of miles with an aggressive vvt tune, pull the cams and mic them. Nobodies going to do that. I can say going from A00C to B01C calibration eliminated the noise under load at 5k rpm. I was convinced the noise was just a resonance but the drastic difference in factory tunes has changed my mind.

How do you change cals? I missed that one! ETA: Assuming a new ECU.

steve99 · 04-28-2014, 04:51 PM

Quote:

Originally Posted by Tromatic

How do you change cals? I missed that one! ETA: Assuming a new ECU.

OFT does not allow you to change rom type or upgrade a stock calibration, for that you need to go to dealer or use tactrix/ecuflash

wparsons · 04-28-2014, 05:27 PM

Quote:

Originally Posted by steve99

OFT does not allow you to change rom type or upgrade a stock calibration, for that you need to go to dealer or use tactrix/ecuflash

Kinda true... the OTS maps are built off the newest ROM, but tweaked to work like it's stock. So I'm running a 700c ROM (OLD!), but it's based off the A01C ROM (unless it was updated again to a newer one).

steve99 · 04-28-2014, 06:31 PM

Quote:

Originally Posted by wparsons

Kinda true... the OTS maps are built off the newest ROM, but tweaked to work like it's stock. So I'm running a 700c ROM (OLD!), but it's based off the A01C ROM (unless it was updated again to a newer one).

True, but the oft will return you to your original rom cal if you unmarry. and you carnt jump to the new b01c series rom either.

The 700c to a01c was just a couple of parameter changes the b01c is complete structure change for some reason.

wparsons · 04-28-2014, 06:58 PM

Very true, forgot to mention about unmarrying it.

ML · 05-16-2014, 01:53 PM

bump

Dezoris · 05-16-2014, 08:56 PM

Still have to get to the dyno to look at comparisons.

Boofneenee · 05-16-2014, 08:57 PM

I have the OFH, OFT stage 2 with the q300 which is a very quiet exhaust system. I hardly ever hear it.. go stage 2 if you hate the sound

regal · 05-17-2014, 03:01 PM

Quote:

Originally Posted by steve99

OFT does not allow you to change rom type or upgrade a stock calibration, for that you need to go to dealer or use tactrix/ecuflash

I used Tatrix, ECUFLASH, and TD-D's rom&dev posts. I held my breath thru the flash but it went well and going from the original calib to the 2014 is like night and day. I almost feel comfortable reving this engine now, they (OEM's) had to have done some behind the scenes improvements.

Tromatic · 05-17-2014, 03:17 PM

Quote:

Originally Posted by regal

I used Tatrix, ECUFLASH, and TD-D's rom&dev posts. I held my breath thru the flash but it went well and going from the original calib to the 2014 is like night and day. I almost feel comfortable reving this engine now, they (OEM's) had to have done some behind the scenes improvements.

I'll need ECUFlash and the Open Port, correct? Can you provide a link to the ROM's?

steve99 · 05-17-2014, 03:19 PM

Quote:

Originally Posted by Tromatic

I'll need ECUFlash and the Open Port, correct? Can you provide a link to the ROM's?

I added ROMs (well B01C and A01G) at end of the Tactrix info post

http://www.ft86club.com/forums/showthread.php?t=62332

steve99 · 05-17-2014, 03:20 PM

Quote:

Originally Posted by regal

I used Tatrix, ECUFLASH, and TD-D's rom&dev posts. I held my breath thru the flash but it went well and going from the original calib to the 2014 is like night and day. I almost feel comfortable reving this engine now, they (OEM's) had to have done some behind the scenes improvements.

by the way the "official" version of ECUFLASH is out on the tactrix web site I have updated Tactrix info post above

regal · 05-17-2014, 03:30 PM

Quote:

Originally Posted by steve99

by the way the "official" version of ECUFLASH is out on the tactrix web site I have updated Tactrix info post above

yea you have to install the official ecuflash first , update your openport stuff, then install the beta over top. All in all it took me about 6 hrs to figure it out, less time than I have spent haggling with the dealer.

Th VVT noise is gone, but understand I went from the very first 2012 calib which we all know was junk.

Tromatic · 05-17-2014, 03:50 PM

Sanity check, then. If I use the ECUFlash to flash the latest B01C ROM, I can still use the OFT as well, correct? I'd zero the OFT and read the B01C from the car. IIRC, though, the ECUFlash will do just about any ROM, and is NOT idiot (moslty) proof.

Am I close?

05-16-2014, 08:56 PM	#301
Dezoris Senior Member Join Date: Aug 2012 Drives: FR-S Location: IL Posts: 2,857 Thanks: 519 Thanked 2,997 Times in 1,095 Posts Mentioned: 159 Post(s) Tagged: 1 Thread(s)	Still have to get to the dyno to look at comparisons. __________________ SAVAGEGEESE

05-16-2014, 08:57 PM	#302
Boofneenee Go-Kart Enthusiast Join Date: Aug 2013 Drives: Toyota Scion FRS Location: Yup Posts: 800 Thanks: 576 Thanked 309 Times in 188 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	I have the OFH, OFT stage 2 with the q300 which is a very quiet exhaust system. I hardly ever hear it.. go stage 2 if you hate the sound __________________ FRS Current mods: K&N air filter, OFT, OFH, berk high flow cat front pipe, Q300 exhaust, lighter wheels

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05-17-2014, 03:50 PM	#308
Tromatic Banned Join Date: May 2013 Drives: FR-S Location: Portland, OR Posts: 2,232 Thanks: 61 Thanked 1,728 Times in 786 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	Sanity check, then. If I use the ECUFlash to flash the latest B01C ROM, I can still use the OFT as well, correct? I'd zero the OFT and read the B01C from the car. IIRC, though, the ECUFlash will do just about any ROM, and is NOT idiot (moslty) proof. Am I close?

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