Epic Motorsports NA Tune

[Hein Jockins]

Since we’re talking about Randy. Yep. Great guy and a fantastic product. Had issues with Alpines tune, switched to Epic, and couldn’t be happier. Pulls much smoother throughout rev range. Randy’s been doing this for forever, and his reputation and market share in the track/racing community speaks for itself.

[///Mobbin]

Curious if anyone has slipped in a few gallons of E85 on a full tank when running the Epic tune? Mainly looking to decrease odors (or make them more pleasant) when running low cell (or no) cats.

[GinTonic]

I found this:
https://www.audizine.com/forum/showt...a-93-tuned-car

[SkiFly01]

Originally Posted by ///Mobbin

Curious if anyone has slipped in a few gallons of E85 on a full tank when running the Epic tune? Mainly looking to decrease odors (or make them more pleasant) when running low cell (or no) cats.

Could go with a fuel fragrance additive.

https://www.summitracing.com/search/...type/fragrance

https://www.jegs.com/p/JEGS/JEGS-Fue...95744/10002/-1

[///Mobbin]

Hilarious, had no idea such a thing existed.

[--Aramis--]

It's "surprising", some kind of magic

[tdott]

Has anyone ever had a misfire code with an epic tune?

Ran into a car that was misfiring but won't throw a code, flashed back to stock, code appeared right away. Swapped coils and confirmed code moved.

Honestly not a good sign for safety.

[nycplumber]

I ran the tune for 4 years and never had an issue. I would contact Randy directly he is great with that stuff

[tdott]

Originally Posted by nycplumber

I ran the tune for 4 years and never had an issue. I would contact Randy directly he is great with that stuff

That's not what I asked. I asked if anyone ever got a misfire code while running this tune.

Otherwise it's highly unsafe to have knock sensitivity turned down or off, for when there are issues, it can be catastrophic of not caught in time or noticed by the owner. Imagine what happens if someone keeps driving with a misfire and the car lets it because it doesn't go in limp mode.

[nycplumber]

Originally Posted by tdott

That's not what I asked. I asked if anyone ever got a misfire code while running this tune.

Otherwise it's highly unsafe to have knock sensitivity turned down or off, for when there are issues, it can be catastrophic of not caught in time or noticed by the owner. Imagine what happens if someone keeps driving with a misfire and the car lets it because it doesn't go in limp mode.

Thats what I was saying lol..... I have had misfires that were caused by an exhaust leak/other issues and the tune didn't stop it from going into limp mode or getting SES light.

[tdott]

Originally Posted by nycplumber

Thats what I was saying lol..... I have had misfires that were caused by an exhaust leak/other issues and the tune didn't stop it from going into limp mode or getting SES light.

ok thanks, that is not what you said there 'never had an issue' doesn't tell me that.

So you had a misfire, and when codes were pulled, do you remember what the code was?

[gh0stE92M3]

Originally Posted by tdott

ok thanks, that is not what you said there 'never had an issue' doesn't tell me that.

So you had a misfire, and when codes were pulled, do you remember what the code was?

Are you running the street or race tune? I’ve been running by the epic tune for 2 years now and have not experienced any misfires, I have been tracking with it for the past 2 years also and have not experienced any misfires.
Have you checked your plugs?coilpack? Maybe bad fuel?

[tdott]

Originally Posted by gh0stE92M3

Are you running the street or race tune? I’ve been running by the epic tune for 2 years now and have not experienced any misfires, I have been tracking with it for the past 2 years also and have not experienced any misfires.
Have you checked your plugs?coilpack? Maybe bad fuel?

I don't think you guys are understanding or not reading everything I typed. I said the car was misfiring due to a bad coil and DME did not throw a code on the epic tune, but the car was not running right.

Flashed back to stock and a misfire code popped up right away, moved when swapped coils. Coils were replaced and engine is running great, but there is now a lack of confidence in the tune if knock is being suppressed. Car ran for years without issue on the tune, the problem is when there is a issue if a tune is suppressing knock, the DME wont throw a code and it could be harmful to the engine.

[Gossypiboma]

Originally Posted by tdott

I don't think you guys are understanding or not reading everything I typed. I said the car was misfiring due to a bad coil and DME did not throw a code on the epic tune, but the car was not running right.

Flashed back to stock and a misfire code popped up right away, moved when swapped coils. Coils were replaced and engine is running great, but there is now a lack of confidence in the tune if knock is being suppressed. Car ran for years without issue on the tune, the problem is when there is a issue if a tune is suppressing knock, the DME wont throw a code and it could be harmful to the engine.

Knock and missfire are two completely different things. How do you jump the conclusion the tune is supressing knock detection?

[tdott]

Originally Posted by Gossypiboma

Knock and missfire are two completely different things. How do you jump the conclusion the tune is supressing knock detection?

Do you not understand the relation between a misfire and knock?
Misfires can cause knock, knock detection can detect misfires.
If knock sensitivity is turned down/off by the tune, misfires/knock aren't detected or they are ignored........which is harmful to the engine.

[Brandoch]

Don't forget that in these engines the spark plugs are the knock sensors. When the spark plugs and or the coils start wearing, the knock detection becomes greatly reduced. In a performance tune, the knock parameters are reduced a bit to get more power out of the engine. If the plugs/ coils are worn with a tune you could see less knock detection.

-My opinion only-

[Gossypiboma]

Originally Posted by tdott

Do you not understand the relation between a misfire and knock?
Misfires can cause knock, knock detection can detect misfires.
If knock sensitivity is turned down/off by the tune, misfires/knock aren't detected or they are ignored........which is harmful to the engine.

So you're saying a bad coil can lead to detonation??????

[tdott]

Originally Posted by Gossypiboma

So you're saying a bad coil can lead to detonation??????

Sounds like you are only interested in asking questions and not providing any answers.

If you are so smart, enlighten us, I don't claim to be a tuner.

Did I mention denotation?

[tdott]

Originally Posted by Brandoch

Don't forget that in these engines the spark plugs are the knock sensors. When the spark plugs and or the coils start wearing, the knock detection becomes greatly reduced. In a performance tune, the knock parameters are reduced a bit to get more power out of the engine. If the plugs/ coils are worn with a tune you could see less knock detection.

-My opinion only-

Good points, plugs were changed as one of the very first troubleshooting steps and it still wasn't running right or throwing codes.

While I agree with that, I can't explain why it wouldn't throw a code on the epic tune while it wasn't running properly, then when it was flashed back to stock , it threw a code almost right away and directed us to the problem (bad coil).

So I'd like someone more knowledgeable to explain that. Gossypiboma seems to be a smartass, maybe he can enlighten us.

[KawBoy]

Originally Posted by ///Mobbin

Curious if anyone has slipped in a few gallons of E85 on a full tank when running the Epic tune? Mainly looking to decrease odors (or make them more pleasant) when running low cell (or no) cats.

I had a full tank [about 15 gallons] of E85 a few years ago. Car ran just fine. Only issue was right after starting the motor; idle would be slightly erratic, but a touch on the pedal would fix it. MPG went from the usual ~13mpg to about 9mpg.
Not long ago I put in just 1/4 of E85 to a tank that had 1/4 of gas and it was a nightmare. Same map, same everything, same station.
Since E85 is not 85% of ethanol, I believe this one had a different blend.

[e46IX]

Originally Posted by tdott

Good points, plugs were changed as one of the very first troubleshooting steps and it still wasn't running right or throwing codes.

While I agree with that, I can't explain why it wouldn't throw a code on the epic tune while it wasn't running properly, then when it was flashed back to stock , it threw a code almost right away and directed us to the problem (bad coil).

So I'd like someone more knowledgeable to explain that. Gossypiboma seems to be a smartass, maybe he can enlighten us.

I don't have anything to chime in on Epic's tune, but the same thing happened with another local member here on his Alpine tune. It was misfiring but wouldn't throw a code, we flashed back to stock software and right away threw misfire code for an ignition coil.

There is definitely something to this, tunes and knock sensitivity.

[bipp]

just wondering, how many people here are using stage 1 (no supporting mods) vs stage 2?

I'm interested in getting the epic stage 1 tune, but I'd love to hear people reviews specifically on the stage 1 tune.