Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[tonystewart]

The tunes ability to enhance the exhaust pulse (huge performance improvement) with a long tube equal length header also brings with it a sound, a different sound.


Does your OP/DP have a catalytic converter, a Helmholtz Resonator?


On my daughters car, I sold the following to forum members..at a huge loss $$$
Perrin Catted Down Pipe
Perrin Cat Back exhaust
Current system is FA20club EL catted exhaust header, Perrin Overpipe, Nameless Catted Downpipe with Helmholtz Resonator, Stock catback exhaust with Perrin Tips
It's not obnoxious anymore and the datalogs are excellent

[Jman1759]

Originally Posted by tonystewart

The tunes ability to enhance the exhaust pulse (huge performance improvement) with a long tube equal length header also brings with it a sound, a different sound.


Does your OP/DP have a catalytic converter, a Helmholtz Resonator?


On my daughters car, I sold the following to forum members..at a huge loss $$$
Perrin Catted Down Pipe
Perrin Cat Back exhaust
Current system is FA20club EL catted exhaust header, Perrin Overpipe, Nameless Catted Downpipe with Helmholtz Resonator, Stock catback exhaust with Perrin Tips
It's not obnoxious anymore and the datalogs are excellent

Thanks for the example, yes my op/fp is catted (no hemholtz) and the cbe is resonated. I have all my stock exhaust parts to swap out if needed. I am looking for the extra power, not a loud annoying exhaust.

[tonystewart]

Her, like new, Perrin CBE was resonated as well, it was obnoxious, I sat in the back once, couldn't hear myself fart

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[Foobar]

I'm going to have to offer a different opinion than tony - I've got UEL headers (OFH), Perrin 2.5" catted/resonated headerback. I can hear my farts fine in the back

Seriously though, I'm pretty sensitive to noise (I had the Evo3 catback before and had to sell it as it was obnoxiously loud to me, even with silencers). The Perrin system I have is pretty damned tame, the OFH gives it more bite, and you can tell the damned thing has aftermarket headers, but it's still nothing I would consider obnoxious. I could actually go for a bit more if I thought I could without going overboard.

[tonystewart]

Jman, you have two opinions, get the OFT and adjust accordingly, I hope you fall in the direction of Foobar, saving money is always a good thing

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[Jman1759]

Thank you both, if hearing is my worst concern then I am happy with my starting point at least! Expecting my OFT in the mail tomorrow and will let you know how it goes, thanks again.

[Jman1759]

@tonystewart @Foobar I installed the OFT today, no problems worked first time. I used the Stage 2 EL tune that came right on the OFT. For me the volume does not sound much louder than it was before the flash. It is definitely not too loud or annoying. My wife said she couldn't tell the difference in sound. I know the flash worked because it is clearly more powerfull in the bottom end and "pulls" at 3800ish rpm which it never did before. My question: is there a more aggressive/newer stage 2 tune that I should be downloading and putting on the OFT to flash?

[Foobar]

Originally Posted by Jman1759

@tonystewart @Foobar I installed the OFT today, no problems worked first time. I used the Stage 2 EL tune that came right on the OFT. For me the volume does not sound much louder than it was before the flash. It is definitely not too loud or annoying. My wife said she couldn't tell the difference in sound. I know the flash worked because it is clearly more powerfull in the bottom end and "pulls" at 3800ish rpm which it never did before. My question: is there a more aggressive/newer stage 2 tune that I should be downloading and putting on the OFT to flash?

Great! Assuming you've got the stage2 from the OFT site, you're all set.

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[VakaGT]

Quick questions.
Currently running 93Oct Grimmspeed stage 1

If I add headers to my car

What do I switch to (still using 93)

And what if I switch to E85 after headers?

[Perth-86]

After some messing around (mainly as I run a mac, not windows) - I have flashed, and running the Stage 2, UEL and its going fine.
I have powerblocks, Ultrex headers, catback.
Wondered if someone could point me in the direction of dedicated Auto Trans tunes?
I spotted a few threads vs google, but havent pin-pointed a specific page yet.
Power bands feel better in current set up, but she doesnt like running at low revs, 1,5-2.5 seems muddy.. if that makes sense!

[JB86'd]

Originally Posted by VakaGT

Quick questions.
Currently running 93Oct Grimmspeed stage 1

If I add headers to my car

What do I switch to (still using 93)

And what if I switch to E85 after headers?

Stage 2, EL or UEL depending which headers you get. Then stage 2 E85 EL or UEL. When going e85 make sure to follow the correct steps when flashing, there's info on this forum from steve99.

[VakaGT]

alrighty thank you.

[Wayno]

Originally Posted by Perth-86

After some messing around (mainly as I run a mac, not windows) - I have flashed, and running the Stage 2, UEL and its going fine.
I have powerblocks, Ultrex headers, catback.
Wondered if someone could point me in the direction of dedicated Auto Trans tunes?
I spotted a few threads vs google, but havent pin-pointed a specific page yet.
Power bands feel better in current set up, but she doesnt like running at low revs, 1,5-2.5 seems muddy.. if that makes sense!

I would stick to Stg1 or Stg2 EL E85 only for those headers. And you should tune out the extra knock the intake extenders will cause. Read the Aussie tuning thread.

[Perth-86]

Originally Posted by Wayno

I would stick to Stg1 or Stg2 EL E85 only for those headers. And you should tune out the extra knock the intake extenders will cause. Read the Aussie tuning thread.

Thanks mate.
Ill have to invest some time and read up on the 'knock effect' - I am a total nonce when it comes to most IT stuff, so generally look to my mates to assist me, with the car however, not so much.

I am running the 1st of the UEL ultrex headers, MULE car!
They are sounding mint!

I am conscious of not running the wrong tune, the ST2 UEL seems ok so far, but finding others with my Cal code seems limited (running an auto gt)