ESS Tune Help w/Akrapovic

[RaptorKTM]

Just got the full akrapovic system with down pipes, drove about a hundred miles with no tune and felt good gain, surprisingly no check engine light. Day after got the ESS Tune and honestly did not feel any power gain. Any ideas what might be going on, possible pants in the seat dyno fail .

[Fundahl]

Never tried the ESS tune. You need to find a dyno, preferably a load-based one, and get a trace on the stock map and then a trace on the recommended ESS map.

[Satalite]

Strange. Considering the gains of those 2 mods there should be a difference... !

[Dackelone]

You need to drive the car for about 400 miiles with your new tune before it adapts. It will feel better with more miles.

[Franklin Joseph]

Originally Posted by Dackelone

You need to drive the car for about 400 miiles with your new tune before it adapts. It will feel better with more miles.

Does the car need to adapt if its only the full exhaust system (no tune)? Want to know this as i plan to get the car dynoed this friday...if it needs to adapt, i'll put on miles and dyno later.

OP...do let me know if and when u get the CEL. I went catless yesterday, put about 20miles on the car and no CEL.

[Dackelone]

Originally Posted by Franklin Joseph

Does the car need to adapt if its only the full exhaust system (no tune)? Want to know this as i plan to get the car dynoed this friday...if it needs to adapt, i'll put on miles and dyno later.

I don't know IF the DME needs to adjust if you only change the exhaust. I think since you deleted your primary cats - yes, you would need to drive some miles to the car to learn again.

Originally Posted by Franklin Joseph

OP...do let me know if and when u get the CEL. I went catless yesterday, put about 20miles on the car and no CEL.

When you say "catless" do you mean secondary(mids) cats or main cats? Down pipes or mid pipes?


Dackel

[Franklin Joseph]

I mean both catless downpipe and midpipe. Guess i will drive the car more to adapt before the dyno.

Thanks.

[RaptorKTM]

Drove another 100 miles, I feel no real difference, maybe slightly more linear power curve but definitely not much faster if any then stock tune.

[max08e90]

Originally Posted by RaptorKTM

Drove another 100 miles, I feel no real difference, maybe slightly more linear power curve but definitely not much faster if any then stock tune.

This is very interesting...Coming from a modified STI that was turbo'd I expected these cars to have immediate reactions with a couple bolt ons. Hopefully some more driving will solve the problem!

[RaptorKTM]

Going to call ESS on monday and confirm the file they sent me is not my stock file or something like that and make sure the file is actually the tune.

[Franklin Joseph]

keep us posted on what ESS says. maybe you need their stage 2 map?
So with the ESS stage 1, you have the option of switching maps back to stock right? (for dealer visits)...So can u switch back to stock and see if there's any change?

I dont trust my butt dyno anymore...so i'm gonna dyno my car with these mods just to see where i'm at, and will redyno again after i get my tune.

[SNOOPY11]

Not sure if you've seen this vid...

Two 1Ms..

One is stock, the other ESS and catback (not sure which). Not much of a difference so your butt might be accurate.

see ~1:00 and ~2:00

[RaptorKTM]

Yea but Im running a downpipe as well which should bump the power up nicely as well. Im thinking something is not right with the tune file. But not sure quite yet, need to dig farther into this.

[carchrism5]

Originally Posted by SNOOPY11

Not sure if you've seen this vid...

Two 1Ms..

One is stock, the other ESS and catback (not sure which). Not much of a difference so your butt might be accurate.

The orange 1M in that video is mine. I have a few things done to my car and when I did the ESS my car was otherwise stock in terms of power and it made a huge difference in power. Then I did a Berk mid pipe and gained more power. I don't know what was going on with that supposedly "stock" white 1M but I will confirm the ESS tune is well done and gains significant power.

For comparison my little brother has an N54 335 and I have a Z4 35is (same base tune as a 1M) and there is a huge difference between my 1M and both of those.

[robertm]

Originally Posted by carchrism5

For comparison my little brother has an N54 335 and I have a Z4 35is (same base tune as a 1M) and there is a huge difference between my 1M and both of those.

Is that true? I mean the part about the 1M tune being the same as the z4 35is (and 335is I suppose)?

I always assumed it was but then read somewhere on here from someone that owned a 335is before and now 1M and he said there was a nice bump in power from one to the other. Possibly could have just been better gearing from the rear dif that was making if feel faster.

[fastauto]

look at T-Neck putting down the power! Nice numbers

[mrow]

Originally Posted by robertm

Is that true? I mean the part about the 1M tune being the same as the z4 35is (and 335is I suppose)?

I always assumed it was but then read somewhere on here from someone that owned a 335is before and now 1M and he said there was a nice bump in power from one to the other. Possibly could have just been better gearing from the rear dif that was making if feel faster.

Z4 35is lists 335HP on bmwusa.com 335is lists 320HP.

[johnsfb]

You should feel obvious extra power as soon as you get out into the street. I've had my 1M tuned and other turbo cars before that and if you don't really feel the difference there's something wrong.

[marcel b]

Originally Posted by johnsfb

You should feel obvious extra power as soon as you get out into the street. I've had my 1M tuned and other turbo cars before that and if you don't really feel the difference there's something wrong.

+1. I could experience the Evolve remap, and that was noticeable straight away in improved driveability and increased power.

[sparoz]

Originally Posted by RaptorKTM

Drove another 100 miles, I feel no real difference, maybe slightly more linear power curve but definitely not much faster if any then stock tune.

I found the ESS curve smoother and more linear than stock. The main gain for me is on the later rev range where it keeps climbing. You might able to speak to ESS to give you more power earlier in the rev range?

[TUNEDM3]

[QUOTE=SNOOPY11;11001790]Not sure if you've seen this vid...

Two 1Ms..

One is stock, the other ESS and catback (not sure which). Not much of a difference so your butt might be accurate.

see ~1:00 and ~2:00

The white 1M in the video is mine. I am not quite sure why I made similar numbers to orange car, but I can assure you that the car is stock. I really have no reason to lie.

[Rekraps]

[QUOTE=TUNEDM3;11006980]

Originally Posted by SNOOPY11

Not sure if you've seen this vid...

Two 1Ms..

One is stock, the other ESS and catback (not sure which). Not much of a difference so your butt might be accurate.

see ~1:00 and ~2:00

The white 1M in the video is mine. I am not quite sure why I made similar numbers to orange car, but I can assure you that the car is stock. I really have no reason to lie.

Man! We need answers! I was just preparing to order the ESS unit and expected 65 to 70 HP. I'm I dreaming or is it worth it?