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      03-24-2016, 11:40 AM   #1
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Satisfaction with S/C tuner - ESS kits

I have a question for the owners with ESS kits.

Without going into a debate on who is the best - always a subjective question/answer....I am specifically asking for feedback on the daily manners of your S/C car after the install and after tune.

Any hesitation during WOT? Almost as if you are not able to modulate throttle.

Daily manners after tune?

Did you switch from the original tune?

TIA for your feedback. If you feel more comfortable, PM me.
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      03-24-2016, 11:45 AM   #2
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You won't find many ESS kits using different tunes unless there were purchased used and offered at a substantially lesser cost.

ESS designed the kit, no one knows the system better than they do.
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      03-24-2016, 11:58 AM   #3
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Any hesitation during WOT? Almost as if you are not able to modulate throttle.
- No hesitation during WOT, but I also opted for the stock like throttle input/response as opposed to the default one ESS gives you with the SC tune.

Daily manners after tune?
- Nothing to report.

Did you switch from the original tune?
- Only changed the throttle input sensitivity as the original was to off/on without the subtle variances at partial throttle.
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      03-24-2016, 12:06 PM   #4
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tom @ eas - I believe this as well, however I am experiencing a hesitation under load that did not exist prior to the tune. For a lack of better term, it's a herky-jerky sensation when I aggressively accelerate.

IMO - the tune should enhance the manners of the car and seamlessly make this better, correct?
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      03-24-2016, 12:07 PM   #5
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I ran ESS tune for 20K, switched to BPM myself and much more happy. Not cheaper, not bought used.
ESS not bad, just think BPM edged them out a tad. Either way the ESS SC itself is awesome.
I also did not care for how the throttle felt with ESS's, im much smoother now.
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      03-24-2016, 12:10 PM   #6
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BrewRifle - The hesitation may be a cause from the throttle response as you pointed out. I'll contact ESS and see what exactly the parameters are for throttle response with my tune.

Just for clarity - I have no complaints on anything else, just this one small issue.
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      03-24-2016, 12:32 PM   #7
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Quote:
Originally Posted by ASBSECU E93 View Post
tom @ eas - I believe this as well, however I am experiencing a hesitation under load that did not exist prior to the tune. For a lack of better term, it's a herky-jerky sensation when I aggressively accelerate.

IMO - the tune should enhance the manners of the car and seamlessly make this better, correct?
Do you have a dyno showing the hesitation?

How many miles on the car? When were plugs and O2s last changed?
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      03-24-2016, 12:44 PM   #8
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Quote:
Originally Posted by ASBSECU E93 View Post
I have a question for the owners with ESS kits.

1-Any hesitation during WOT? Almost as if you are not able to modulate throttle.

2-Daily manners after tune?

3-Did you switch from the original tune?

TIA for your feedback. If you feel more comfortable, PM me.
1- zero unless you have traction control on, TC kills the power

2- exactly like an oem/un modified car. i daily drive my car 6 days a week and have had my kit for fifteen months now.

3-no, flawless from the minute it was uploaded and started for the first time.

I actually bought my kit used and from my research didn't really find the need to go to an aftermarket tuner. AJ/ESS did a great job creating the kit and the tune to go with it. i can't image how many dyno runs and hours they spent before releasing the kit
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      03-24-2016, 01:09 PM   #9
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tom @ eas - O2 were not changed with the install, the plugs and injectors are new. The kit had 3k usage when I acquired it. The car's mileage is only 15k, and I've got maybe 1.5k with the kit installed. The Dyno did not show the hesitation - but TC was not on during the pulls either.

As Patrón mentioned - T/C being on most of the time may also be a factor. Until I've had more time behind the wheel to gain more confidence with the added HP - been a little hesitant to take 100% of the nannies off...
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      03-24-2016, 03:10 PM   #10
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Quote:
Originally Posted by ASBSECU E93 View Post
tom @ eas - O2 were not changed with the install, the plugs and injectors are new. The kit had 3k usage when I acquired it. The car's mileage is only 15k, and I've got maybe 1.5k with the kit installed. The Dyno did not show the hesitation - but TC was not on during the pulls either.

As Patrón mentioned - T/C being on most of the time may also be a factor. Until I've had more time behind the wheel to gain more confidence with the added HP - been a little hesitant to take 100% of the nannies off...
That's very low mileage. Can you see any codes present with your E-Flash cable?
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      03-24-2016, 03:45 PM   #11
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Ah yea traction control on could be whats doing it, if you punch it in 1s 2nd 3rd depending on what tires your running you will get alot of hesitation/reduced power/braking etc that kicks in.

Just take it to empty parking lot etc start rolling a bit in first or 2nd and punch it with DSC off and see how it behaves.
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      03-24-2016, 03:46 PM   #12
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I'd like to see dyno results for ESS S/C M3's with the ESS tune compared to dyno results for ESS S/C M3's tuned by someone other than ESS.
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      03-24-2016, 03:58 PM   #13
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Quote:
Originally Posted by ASBSECU E93 View Post

As Patrón mentioned - T/C being on most of the time may also be a factor. Until I've had more time behind the wheel to gain more confidence with the added HP - been a little hesitant to take 100% of the nannies off...
my 09 doesn't have mdm or other options so my TC is either on or off. it is a completely different animal with the TC off. the best way I can compare it is with the TC on it feels like an oem car without the supercharger from 1-3rd gear. turn it off and all the power is there.
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      03-24-2016, 04:02 PM   #14
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Quote:
Originally Posted by Patrón View Post
my 09 doesn't have mdm or other options so my TC is either on or off. it is a completely different animal with the TC off. the best way I can compare it is with the TC on it feels like an oem car without the supercharger from 1-3rd gear. turn it off and all the power is there.
I can't even imagine not having MDM as I use it 100% of the time. I've still never run my car with TC off due to MDM being so good. I'd be terrified of flying off the road at full throttle with MDM AND TC off. Not to mention that I bet you just spin your tires with TC off 1st-3rd?
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      03-24-2016, 04:03 PM   #15
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Quote:
Originally Posted by Longboarder View Post
I'd like to see dyno results for ESS S/C M3's with the ESS tune compared to dyno results for ESS S/C M3's tuned by someone other than ESS.
that is what i've always wanted, especially ones that had the ess tune and dynoed then with the 'new' tune to see the difference. i don't remember anyone every doing that without some kind of change like a different exhaust or test pipes added. the question is then how close to 14:1 the other tuners are targeting for a/f ratios.
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      03-24-2016, 05:31 PM   #16
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I had hesitation even jerkiness between 2k and 3k rpm. This was due to the Akra Evo line design apparently. When I switched to the ESS HFC line, the behavior became perfect for the lack of a better word. And AJ @ ESS has been amazing at advising and retuning for me. Top service.
Otherwise, I confirm DSC kills it almost all. MDM far better and saved me a couple of times so love it.
Next I am switching tires to 265/295 and adding solid subframe bushings.
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      03-24-2016, 09:04 PM   #17
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Quote:
Originally Posted by Patrón View Post
that is what i've always wanted, especially ones that had the ess tune and dynoed then with the 'new' tune to see the difference. i don't remember anyone every doing that without some kind of change like a different exhaust or test pipes added. the question is then how close to 14:1 the other tuners are targeting for a/f ratios.
I did have a chance to Do 2 pulls in Cali before I left, was with crappy gas so was running pretty low on numbers will try do so a dynojet here now that im home with 93 octane.
1st pull:*Air Fuel = 14.89 Max *Boost = 6.59
2nd pull:*Air Fuel = 15.34 Max * Boost = 5.70

ESS 625, On BPM tune after switching from ESS. Got to say the Cali gas is terrible, even mixing 101 with the 91 octane I lost a TON of power soon as I got out west before and after switching Tunes.
If I can find time to drive to coast Ill dyno before I go on a trip.
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      03-25-2016, 09:56 AM   #18
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Quote:
Originally Posted by BrewRifle View Post
I can't even imagine not having MDM as I use it 100% of the time. I've still never run my car with TC off due to MDM being so good. I'd be terrified of flying off the road at full throttle with MDM AND TC off. Not to mention that I bet you just spin your tires with TC off 1st-3rd?
i've thought of the retro fit/tune to activate mdm but a friend that had it still thought the mdm intruded too much on the power. i drive 99.99% of the time with the TC on. with it off, it is definately a white knuckle experience, but fun. the only way to drive in 1st - 3rd is with the throttle and sometimes short shifting. i need to check my subframe mounts but I really think the only cure is R888s.
Quote:
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I did have a chance to Do 2 pulls in Cali before I left, was with crappy gas so was running pretty low on numbers will try do so a dynojet here now that im home with 93 octane.
1st pull:*Air Fuel = 14.89 Max *Boost = 6.59
2nd pull:*Air Fuel = 15.34 Max * Boost = 5.70

ESS 625, On BPM tune after switching from ESS. Got to say the Cali gas is terrible, even mixing 101 with the 91 octane I lost a TON of power soon as I got out west before and after switching Tunes.
If I can find time to drive to coast Ill dyno before I go on a trip.
i hope the bpm tune corrected those A/F ratios, those are horrible. i think boosted tuners shoot for 11-high 12s for targets.
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      03-25-2016, 11:44 AM   #19
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Scheduled for a dyno session Wed so we will see what the numbers say.
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      03-25-2016, 12:20 PM   #20
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Quote:
Originally Posted by Patrón View Post
i've thought of the retro fit/tune to activate mdm but a friend that had it still thought the mdm intruded too much on the power. i drive 99.99% of the time with the TC on. with it off, it is definately a white knuckle experience, but fun. the only way to drive in 1st - 3rd is with the throttle and sometimes short shifting. i need to check my subframe mounts but I really think the only cure is R888s.


i hope the bpm tune corrected those A/F ratios, those are horrible. i think boosted tuners shoot for 11-high 12s for targets.
Looking back at the graphs looks like AFR's start out high with it just crusing at 2500RPM then drops down to around 12 soon as he punches it. Which from reading is pretty normal.
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      03-25-2016, 02:12 PM   #21
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Quote:
Originally Posted by BrewRifle View Post
I can't even imagine not having MDM as I use it 100% of the time. I've still never run my car with TC off due to MDM being so good. I'd be terrified of flying off the road at full throttle with MDM AND TC off. Not to mention that I bet you just spin your tires with TC off 1st-3rd?
+1. Before supercharging I was running with TC completely off on the track. Now, I run with euro MDM on, which is pretty good.
I don't even want to try tracking SCed M3 with TC off. That would be asking for trouble.
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      03-25-2016, 05:11 PM   #22
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Quote:
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+1. Before supercharging I was running with TC completely off on the track. Now, I run with euro MDM on, which is pretty good.
I don't even want to try tracking SCed M3 with TC off. That would be asking for trouble.
Very true. And strange because I am comfortable driving my 997.2 with all the nannies off at the track and it makes 750 HP/ 800 TQ compared to the 600/400 in the M3. The 911 is known to suffer from the pendulum effect of the engine in the rear and I can tell because it snaps on me quick, but I can catch it every time. I have lost the rear end in my M3 more times than I've been able to catch it. So for now MDM stays on for me too. Maybe we just need more seat time/practice my friend.
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