New Stage 2 UEL (91-93 and E85) OTS tune files

[steve99]

Originally Posted by Felix7007

My FR-S will soon have the UEL OFH installed. I expect to plug in my OFT and flash with this new 93oct tune and go to the track on July 1st. What are the chances everything will go smoothly? I see people posting some problems here. Is this product more trouble than it's worth?

The new tune people are talking about here is designed specificly for an OFH UEL header on good quality 93 fuel. some people are trying the tune with different header and maybe fuel that's not top quality and they are having the odd problem.


If your running a OFH and good 93 fuel you should be fine.


The OFT will likely come preloaded with the less aggressive "standard" UEL tune.

[solidONE]

Originally Posted by tdotBRZ

OFH is exact same layout as Tomei UEL, just 2.5" instead of 2.38" piping from what I can recall, correct me if i'm wrong

I'm talking about not only the collector size but the runner diameter. Something like 1.75" OD vs 1.65" OD or something like that.

[FrostedFlakes]

I just plugged in my OFT out of curiosity.

Seems like my Advance Multiplier is below 1. Cold start it was at 0.68, then after a short drive it was 0.72 and then after a highway cruise back home it was about 0.78.

I am using *supposedly 94 octane. I knew our Cheveron 94 Octane was crap here in Vancouver, Canada, but didn't realize it was that bad.

I am sure this isn't really ideal for this aggressive tune, but not sure if there is anything to be concerned about at this moment....

[RedFRS4me]

Originally Posted by FrostedFlakes

I just plugged in my OFT out of curiosity.

Seems like my Advance Multiplier is below 1. Cold start it was at 0.68, then after a short drive it was 0.72 and then after a highway cruise back home it was about 0.78.

I am using *supposedly 94 octane. I knew our Cheveron 94 Octane was crap here in Vancouver, Canada, but didn't realize it was that bad.

I am sure this isn't really ideal for this aggressive tune, but not sure if there is anything to be concerned about at this moment....

At .80 IAM I dont feel comfortable. I ended up going back to the regular stage 2 uel.

[Michael]

Originally Posted by steve99

The OFT will likely come preloaded with the less aggressive "standard" UEL tune.

I'm good with having the standard UEL tune. What are the benefits to the more aggressive tune?

[steve99]

Originally Posted by Michael

I'm good with having the standard UEL tune. What are the benefits to the more aggressive tune?

The updated ofh tune was specifly for ofh and good fuels if you can run it with minimal knock then it should produce a fewcmore hp. If you getting knock and your iam is dropping below 1 regularly then your better off with the standard uel tune thats less agressive timing and fueling wise.

[Michael]

Good to know. I only run Shell 93 VPower which is, from my understanding, top tier fuel. I need to learn how to read the datalogs once I get a OFT to know what to look for on knocks.

[FrostedFlakes]

Originally Posted by steve99

The updated ofh tune was specifly for ofh and good fuels if you can run it with minimal knock then it should produce a fewcmore hp. If you getting knock and your iam is dropping below 1 regularly then your better off with the standard uel tune thats less agressive timing and fueling wise.

I have been running this tune since it was released and driven mostly in city traffic. Thought I would be safe, but turns out I was wrong. I will revert back to the standard UEL tune for now until I can figure out a way to boost the octane of our local piss water premium fuel.

[steve99]

Originally Posted by FrostedFlakes

I have been running this tune since it was released and driven mostly in city traffic. Thought I would be safe, but turns out I was wrong. I will revert back to the standard UEL tune for now until I can figure out a way to boost the octane of our local piss water premium fuel.

think i remember someone said Husky fuel was good ?

[FrostedFlakes]

Originally Posted by steve99

think i remember someone said Husky fuel was good ?

We used to have Husky 94 but they got rid of it and I think the highest now is 91.

However we have one E85 gas station a little bit out of Vancouver. I may go and mix 10% E85 with the local 94 and see what happens.

[BurnetRhoades]

Originally Posted by solidONE

I'm talking about not only the collector size but the runner diameter. Something like 1.75" OD vs 1.65" OD or something like that.

JDL UEL also have 1.75" OD on primary runners, which is surprisingly larger than even the ACE 4-2-1 at 1.68"

[G-awesome]

Originally Posted by FrostedFlakes

I just plugged in my OFT out of curiosity.

Seems like my Advance Multiplier is below 1. Cold start it was at 0.68, then after a short drive it was 0.72 and then after a highway cruise back home it was about 0.78.

I am using *supposedly 94 octane. I knew our Cheveron 94 Octane was crap here in Vancouver, Canada, but didn't realize it was that bad.

I am sure this isn't really ideal for this aggressive tune, but not sure if there is anything to be concerned about at this moment....

Sweet..another Vancouver native that I can compare results with. I didn't know that our Chevron 94 was that bad here until I started tuning/testing/data logging recently.

Which header do you have? I had knock issues in the high rpm range using chevron 94 using both the OFH & OFT tunes during WOTs. My IAM starts at one and kept dropping to 0.5 after a couple of pulls. The car is mainly a DD so my IAM stays at 1 with very little knock when you're stuck in traffic and driving normally most of the time.

The header is a catted JDL UEL header which is most likely too aggressive to start with. I have a feeling that the high flow cat is more restrictive than I thought. Paired with crappy Chevron 94 gas...it's sucks and kinda wish I never went with a catted header to start with.

I'm in the process of testing with Shell 91 and back to a stage 1 tune for the time being. Been learning and testing with different timing maps to perfect a tune for a catted header.

[FrostedFlakes]

Originally Posted by G-awesome

Sweet..another Vancouver native that I can compare results with. I didn't know that our Chevron 94 was that bad here until I started tuning/testing/data logging recently.

Which header do you have? I had knock issues in the high rpm range using chevron 94 using both the OFH & OFT tunes during WOTs. My IAM starts at one and kept dropping to 0.5 after a couple of pulls. The car is mainly a DD so my IAM stays at 1 with very little knock when you're stuck in traffic and driving normally most of the time.

The header is a catted JDL UEL header which is most likely too aggressive to start with. I have a feeling that the high flow cat is more restrictive than I thought. Paired with crappy Chevron 94 gas...it's sucks and kinda wish I never went with a catted header to start with.

I'm in the process of testing with Shell 91 and back to a stage 1 tune for the time being. Been learning and testing with different timing maps to perfect a tune for a catted header.

I am running OFH and full catless exhaust. *update - I mixed 10% E85 today, but the fuel still remained at 0.82 after a long drive. It was not until after I drove about 76km that the IAM started to peak all the way up to 0.98.. lets see if it will hit 1. My IAM dropped to 0.46 at one point today before filling a bit of E85, leads me to believe it either is a really bad batch, or the fuel is just shit in general.

PM me on how the the Shell 91 turns out for you.

[solidONE]

Originally Posted by BurnetRhoades

JDL UEL also have 1.75" OD on primary runners, which is surprisingly larger than even the ACE 4-2-1 at 1.68"

Not surprising really. Though you're comparing apple (UEL 4into1) to peach (long tube 4-2-1 EL).