94 Octane rom fine tuning for OFT

[FT86Z]

My BRZ is currently tuned with 93 Stage 1 OTS tune (OFT) and its running well but something crossed my mind today: Most Canadians have access to 94 octane petrol from Petro Canada. Will there ever be an OTS tune for 94 users or is there a way to fine tune my OTS rom in romraider to maximize our tune for us 94 users? I know E85 is the way to go but there arent any stations here in Toronto. Thanks in advance.

[Stealthy]

Since Canada's gas isn't as great as the states you may want to consider using the 91.

As far as I know CA 94 /< US 91

[D_Thissen]

Originally Posted by FT86Z

My BRZ is currently tuned with 93 Stage 1 OTS tune (OFT) and its running well but something crossed my mind today: Most Canadians have access to 94 octane petrol from Petro Canada. Will there ever be an OTS tune for 94 users or is there a way to fine tune my OTS rom in romraider to maximize our tune for us 94 users? I know E85 is the way to go but there arent any stations here in Toronto. Thanks in advance.

To be honest, I don't think there would be much of a difference between OTS 93 and 94. I think you'd gains from a custom tune though since the OTS tunes seem to be on the conservative side.

[jeffwilliams]

Like what was said above, the Canadian 94 is comparable to US91. At least here in BC. I'm currently running the OTS stage 2 UEL 91 tune and occasionally see the ignition timing getting pulled when running the Canadian 94

[R2]

I have been able to add in a bit of timing to the OFT 93 maps when running Husky 94. I notice a lot more knock and IAM's ~0.8 when filling with the occasional 91 octane around here. Alot of people say the Petro Canada 94 isn't as good but I haven't experienced it since we don't have it in Saskatchewan. I presume the Husky 94 comes from their refinery in Lloydminster, but I have no idea where Petro Canada makes theirs.

[D_Thissen]

I run PC94 on the Stage 1 93 tune and have no problems. @wparsons said he gets knock on 91 using the 91 tune.

[wparsons]

Originally Posted by D_Thissen

I run PC94 on the Stage 1 93 tune and have no problems. @wparsons said he gets knock on 91 using the 91 tune.

Originally Posted by new2subaru

Would that be because the 94 octane contains Ethanol?

The knock I get on 91 octane on the 91 tune (or stock) is all lower in the RPM range. 2500-3500ish rpm, medium throttle. The ignition tables for that range are the same in the OTS 91 and 93 tunes, it's just higher up that the 93 tunes add more advance. On 94 octane (Petro) with either tune there's no knock at all.

The knock I've seen is worst in stop and go traffic with the AC on, generally non-existent around town or on a back road.

[jeffwilliams]

The only 94 we can get in bc is Chevron, and Ya, stop and go with AC on is a bad time. Crossing the boarder and filling with Chevron 92 is a massive improvement. Seen a bunch of dyno charts from drift office in Washington comparing the 2 fuels. A boosted 86 running the us92 might make 275whp, the same car on Canadian 94 can only do 230 safely ��we need e85 to be easier to get

[hmong337]

94 octane Canadian is not 91 octane American lol. Where the hell you guys get that shit from?! All I run is Petro Canada ultra94. Been using it for years and years wwith lots of success.

Back to the OP, a custom tune is your best bet to extract more power from our 94. I highly doubt OFT will release a 94 "Canadian octane" map just for us. You're best to just stick with the 93 map for simplicity. The difference between 1 octane point is miniscule.

[R2]

Has anybody tried Esso's 92? I haven't filled at an Esso for years and recently got a gas card for there, noticed they have 92 as their premium now. I'm curious how that performs, perhaps I'll try it one day and do some logging.

[jeffwilliams]

Originally Posted by hmong337

94 octane Canadian is not 91 octane American lol. Where the hell you guys get that shit from?! All I run is Petro Canada ultra94. Been using it for years and years wwith lots of success.

You guys in Ontario are lucky. Petro 94 is only available there and Alberta.

And was specifically talking about the 94 octane in BC being crap. May not be the case out east but here is some evidence from Bob, who has tuned almost every 86 in the north west, also Amir, who owns the only gas station in bc that sells e85




But back to the OP a good dyno tune using ecutek would get the most out of your car, but the difference between 93 and 94(if actually 94) would be tiny.

[hmong337]

Well, I certainly cannot speak for out west. We don't even have Chevron- or at least I've never seen one out this way. Hell, I can't even remember the last time I've been to a gas bar with 93 or 92 (albeit I only go to PC for the 94). But when I do need gas and can't find a PC with 94, the highest everywhere else it seems is only 91 around here. !

Too many variables to say though. Maybe the fuel is tampered with - "watered down".

[jeffwilliams]

Yeah, all other stations here are 91 at best, other than Chevron 94. But all of the 'premium' grades don't have ethanol in them. But cross the border to Washington state, their 92 does have ethanol and is far superior.. At least when it comes to knock resistance.