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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Fri, Oct-22-2010, 12:49:16 PM   #1
Jonathan 90 M3
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Exclamation As requested, BEFORE/AFTER ESS Tune dyno #s - no other mods!

Posted this info in the other thread, but to help others find this long overdue info, heres yet another ESS thread...



Just got back from dynoing the car after the tune, and I'm very pleased to say the least.

In short, last month before sending my ECU off for the tune, I dynoed the car - bone stock with no power mods whatsoever. I made 3 pulls, giving it about 15 min to cool before each pull, and to 8k RPM using the method shown here: http://www.m3forum.net/m3forum/showp...6&postcount=41


'05 bone stock 34k miles, SMG, OEM 19s on 255 PS2s, and 93 octane using a dynojet dyno:
1st Pull - 281rwhp
2nd Pull - 283rwhp / 234rwtq
3rd Pull - 282rwhp



Good, healthy, consistent numbers for a stock M3 on a dynojet.


After I received the ECU back from Roman, I put over 600 miles on the car to give the ECU time to re-adapt. After the first few hundred miles, the car felt noticeably stronger according to the old butt dyno. I headed back to the shop tonight and re-dynoed. As soon as I pulled into the parking lot, I drove it straight onto the rollers, we strapped it down, and I made a quick pull without letting it cool off just to see what it would do heat soaked (worst case scenario).

ESS Tune: (93 Oct, US headers, stock rev limiter)
1st Pull - 289rwhp / 239rwtq
(forgot to print out this graph)

Very happy with that being heat soaked and all, we then let the car cool off for about 15min the next two pulls just as we did for the baseline, for consistency.

The results:
2nd Pull - 296rwhp / 245rwtq
3rd Pull - 296rwhp / 246rwtq


Best Baseline Pull vs. Best ESS Pull:



Best Baseline Pull vs. 2nd Best ESS Pull:



One thing of note, on my 3rd baseline pull and 3rd ESS pull, I had a dip in power from 2900-3400rpm. Nothing wrong with the tune, my car just seems to have an occasional dip there when I first hit the throttle - with and without the tune.


Solid gains throughout the entire powerband, no dips. For a canned tune, I think these are great numbers, much better than I was expecting when I ordered it! I'd like to give a big thanks to Roman and the guys at ESS for holding the group buy, and putting out a great product!!

I'd also like to thank the guys at Futral Motorsports. They were very cool and even let me dyno the car myself after I listed all the BS that you had to go through to dyno an SMG M3 and to 8k rpm. (I used to work for a shop a few years ago and dynoed my cars all the time, so they didn't mind).

Also, I did hook their wideband up to the car, but we think it may have been having issues lately because the numbers were completely all over the place, with and without the tune. I left these graphs off due to this.
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Last edited by Jonathan 90 M3; Fri, Oct-22-2010 at 12:57:03 PM.
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Old Fri, Oct-22-2010, 12:54:29 PM   #2
Agey
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Congrats! Those are nice numbers just for a tune. Btw how much was it for the tune?
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Old Fri, Oct-22-2010, 01:08:13 PM   #3
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Awesome!!

So much for the "canned tunes are a waste" crap. The ESS tune is the REAL DEAL!!!
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Old Fri, Oct-22-2010, 01:10:07 PM   #4
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good #S for being all stock i wonder what it would have made with just headers ??
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Old Fri, Oct-22-2010, 01:24:55 PM   #5
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looks great, what are the downsides of tuning your car like this.. loss in MPG's? more stress on the engine?
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Old Fri, Oct-22-2010, 01:28:12 PM   #6
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The ESS tune is absolutely no joke. I have made numerous posts about mine. I can't say enough, but some people just do not believe it. Your numbers look awesome and just imagine if you had headers on it. It is not out of the question to gain close to 10% hp increase with headers and ESS tune. Thanks for posting!

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Old Fri, Oct-22-2010, 01:31:17 PM   #7
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Damn, thanks so much for posting! I've really been contemplating this after I install my CSL exhaust. Nice to see unbiased numbers posted for once.
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Old Fri, Oct-22-2010, 01:49:04 PM   #8
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Quote:
Originally Posted by EricSMG View Post
Awesome!!

So much for the "canned tunes are a waste" crap. The ESS tune is the REAL DEAL!!!
This

Quote:
Originally Posted by Mr. Wolfe View Post
The ESS tune is absolutely no joke. I have made numerous posts about mine. I can't say enough, but some people just do not believe it. Your numbers look awesome and just imagine if you had headers on it. It is not out of the question to gain close to 10% hp increase with headers and ESS tune. Thanks for posting!

Mr. Wolfe
And this

I was positive the ESS tune (factory headers, NO other mods) gave me better throttle mapping (by a mile) and some more power - great to see these graphs. I also noticed I was reaching higher speeds at the ends of the front and back straights at VIR last weekend - so much so that I had to make an extra shift in one place! I really can't imagine being much happier with an off-the-shelf software reflash on a motor like the S54.
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Old Fri, Oct-22-2010, 01:51:22 PM   #9
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Nice numbers
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Old Fri, Oct-22-2010, 01:54:24 PM   #10
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Quote:
Originally Posted by jph28 View Post
This



And this

I was positive the ESS tune (factory headers, NO other mods) gave me better throttle mapping (by a mile) and some more power - great to see these graphs. I also noticed I was reaching higher speeds at the ends of the front and back straights at VIR last weekend - so much so that I had to make an extra shift in one place! I really can't imagine being much happier with an off-the-shelf software reflash on a motor like the S54.
Another thing to think about is, every person with this tune can definitely feel an hp gain. I don't think the average person could "feel" a 5hp gain so the hp gain has to be substantial to feel the gain. This tune verifies that and I also like that the dyno runs are very consistent with the other multiple runs.

Mr. Wolfe
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Discussing As requested, BEFORE/AFTER ESS Tune dyno #s - no other mods! in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)