OFT v2.0 Stage 1 93 Octane in Canada

[Walla Walla]

Originally Posted by drewbot

How is the BPB with the OFT tune? I'm rely interested in doing this before winter starts

I really enjoy it!
it respond well, and it give the little something this car should have from factory (expect almost the same "gain feeling" as when you pass from stage 1 to stage 2 on oft)

we are a few at our meet that have OFT, on stage 1 and 2, and we compared, and we all see the gain.

the only downside is on traffic situation, as the car really seems to have less power under 3 000 rpm... but maybe it's just and illusion as it now give more in the 6 000 rmp area!

on the track, it is really great

[Td-d]

Originally Posted by Fareast auto part

If e85 is 104 octane and Petro is 91 octane can you blend the two (say 75% 91 and 25% e85) to make 95 octane gas ? Would this work and be safe (a/r ratio is different for e85) ? If it worked this would work out to be cheaper then buying Chevron 94 .

E85 actually has an octane rating of 94-96, not 104. And no, this would not work out well - since the BTUs and stoich are different, your AF corrections will go wild. You need to run a map specifically for higher ethanol content (i.e. E40 up).

[steve99]

Originally Posted by frsqc

nvm , iam constant 1 0% knock correction. afr and such no idea what to look for but seems in check.

Have a read of links below on logging and knock correction.

IAM=1 means you don't have serious knock problems but you still may not be knock free

you need to log both

FBKC (Knock Correction on OFT)
FLKC fine learning knock correction


to be sure your knock free and log over entire rpm range at varying loads

[steve99]

Originally Posted by drewbot

Torque doesn't have IAM immediately, you have to program the address in

Off the bat you have AFR, STFT, LTFT, timing advance

Do you know the pid for torque for IAM ?

[drewbot]

http://www.ft86club.com/forums/showthread.php?p=1708219
@steve99

Note that I haven't tried this myself

[Fareast auto part]

Originally Posted by Td-d

E85 actually has an octane rating of 94-96, not 104. And no, this would not work out well - since the BTUs and stoich are different, your AF corrections will go wild. You need to run a map specifically for higher ethanol content (i.e. E40 up).

Thanks for the response, I figured it would not be that easy .
By the way is it true that Shiv's e85 tune is set up for e70 just to
be safe for all the variants of ethanol content in e85?

[Td-d]

Originally Posted by Fareast auto part

Thanks for the response, I figured it would not be that easy .
By the way is it true that Shiv's e85 tune is set up for e70 just to
be safe for all the variants of ethanol content in e85?

As far as I understand, Shiv's E85 tunes are set up in such a way that even with varying E levels, the AF corrections will adjust accordingly to effectively accommodate the ethanol content. The AF correction ranges are quite wide on the Ft86's - 40% either way - and in essence, what happening when the E level is higher or lower is that more or less fuel is required - so these ranges can accommodate it.

There's more to in in a true flex fuel setup, but in a simple way, this takes care of it, since I believe the ignition timing is setup up conservatively enough to handle the lower E levels.

[ssyed]

Does anyone know whats the best 91 Fuel in GTA to use for 2.0+ 91 maps?

I am not looking at using petro canada, I just cant stand the crickets.

The best gas available in the Toronto area is 91. I've only used shell 91 but it looks like I had knock issues with it, looking to switch to anything that doesnt produce crickets or knocks. I only have the option to go with Esso or Husky