 |
|
 |
|
|
|
| 06-09-2016, 02:11 AM | #1 |
|
Drift Instructor @ BMW Club UAE
310
Rep 433
Posts
Drives: BMW F10 M5
Join Date: Apr 2015
Location: United Arab Emirates
|
E92 M3 - S65 V8 4.0L - Stage 2 Tune - Simon Motorsport
Alright, this thread is not for weak-hearted people.
Brace yourselves, a lengthy thread ahead... ----- So I had a stock manual E92 M3 and of course like any other petrolhead, I wanted more... Since Simon Motorsport became a Sponsor recently, I had decided to book an appointment and apply for a customized aggressive tune that would stand out amongst other cars. I had visited the workshop at 10:00 AM in the morning and gave my baby to Simon (The man himself) to work on the car. Of course because I was so excited, I couldn't leave the workshop and wanted to stay by car and watch how it is done, and boy I was impressed. ----- 1. Dyno (Before) We did Dyno the car before we do anything to set a benchmark and work our way around the power curve onwards.  So as expected, the car did perform well on Maha Dyno and gave me these results. A Note:Now just to give you a good piece of information. People at this point would be expecting the peak numbers to increase dramatically, which is wrong, because this is not how Tunes work on NA cars. The goal is to increase an entire power curve/torque curve so that the car performs better throughout the entire curve. An increase in the peak number is obviously expected nevertheless. So now our target was to raise the entire curve and boost the low-end. S65 engines are known to have low end torque which is unfortunate. 2. Tuning Stage Simon started doing his magic and started working on engine parameters to get the car leaner and worked on altering the engine timing in order to achieve the best results. Long story short, we had spent 15 hours of our time and did about 22 dyno runs until we actually found the perfect combination of powerful and safe. Below is a dyno comparison between stock and tune throughout all RPMs. --- 3000 RPM Comparison  BHP Gain: +38 BHP WHP Gain: + 35 WHP TQ Gain: + 84 Nm --- 3500 RPM Comparison  BHP Gain: +61 BHP WHP Gain: +62 WHP TQ Gain: +124 Nm --- 4000 RPM Comparison  BHP Gain: +27 BHP WHP Gain: +29 WHP TQ Gain: +48 Nm --- 4500 RPM Comparison  BHP Gain: +10 BHP WHP Gain: +12 WHP TQ Gain: +12 Nm --- 6000 RPM Comparison  BHP Gain: +32 BHP WHP Gain: +35 WHP TQ Gain: +39 Nm --- 7000 RPM Comparison  BHP Gain: +14 BHP WHP Gain: +17 WHP TQ Gain: +15 Nm --- 8200 RPM Comparison  BHP Gain: +2 BHP WHP Gain: +5 WHP TQ Gain: +2 Nm --- DynoJet Numbers  The car did 369 WHP with 51C intake temperature. I believe these are fairly good results all in all. ----- 3. Top Speed Test Disclaimer: This was done on a closed circuit, do NOT attempt on public roads. ----- 4. Minor Touches I had realized later on that my exhaust O-Rings are worn out and were leaking the entire time we were doing the dyno. As well as a leaking Air Intake seals. I had my car serviced, replaced the parts and went for another final dyno (in this heat!) but only this time, I had installed Macht Schnell Stage 2 Underdrive Pulley Kit. So I hit the dyno again and went for another shot. The below images are comparison between my Tune run and Tune+Pulley run. --- 2000 RPM Comparison  BHP Gain: +4 BHP WHP Gain: +3 WHP TQ Gain: +15 Nm --- 2500 RPM Comparison  BHP Gain: +16 BHP WHP Gain: +14 WHP TQ Gain: +44 Nm --- 3000 RPM Comparison  BHP Gain: +50 BHP WHP Gain: +46 WHP TQ Gain: +18 Nm --- 3500 RPM Comparison  BHP Gain: +18 BHP WHP Gain: +14 WHP TQ Gain: +33 Nm --- 4000 RPM Comparison  BHP Gain: +11 BHP WHP Gain: +6 WHP TQ Gain: +19 Nm --- 4500 RPM Comparison  BHP Gain: +9 BHP WHP Gain: +5 WHP TQ Gain: +15 Nm --- 5000 RPM Comparison  BHP Gain: +7 BHP WHP Gain: +2 WHP TQ Gain: +9 Nm --- 5500 RPM Comparison  BHP Gain: +13 BHP WHP Gain: +8 WHP TQ Gain: +16 Nm --- 6000 RPM Comparison  BHP Gain: +10 BHP WHP Gain: +5 WHP TQ Gain: +12 Nm --- No Data for 6500, 7000, 7500, 8000, 8200 RPM. The reason why we didn't go for higher comparison was due to the car/ambient/intake temps being high. The car was adjusting the timing and adapting the the outside temperature and actually decreasing the output on high end. The the comparison would be irrelevant. ----- 5. Conclusion I am a satisfied customer and extremely happy with the car's performance. The gains are well felt behind the steering wheel and I would like to thank Simon for his dedication, time, and effort. The car is a beast now and possibly one of the fastest NA M3s in the UAE. More studies will be carried out in the winter where the car would give out it's maximum performance, and of course more Dyno results.
__________________
F10 M5 - AlpineWhite/SakhirOrange[DCT](Current)
F16 X6 - SparklingStorm/CognacBlack (Current) Follow me on Instagram (Click)   |
| 06-09-2016, 03:10 AM | #2 |
|
Major
 
542
Rep 1,107
Posts |
That is some detailed documentation/recording of results you have there - well done and thanks for sharing it
 . Glad you were pleased with the results and it would seem entirely worth it. The increased torque figures low down must make it a different car altogether.  I guess one downside is the high ambient and intake temperatures you have to deal with in the UAE at this time of the year, not to mention the low humidity! |
|
Appreciate
0
|
| 06-09-2016, 03:49 PM | #7 | |||||
|
Drift Instructor @ BMW Club UAE
310
Rep 433
Posts
Drives: BMW F10 M5
Join Date: Apr 2015
Location: United Arab Emirates
|
Quote:
Quote:
Quote:
Quote:
Quote:
__________________
F10 M5 - AlpineWhite/SakhirOrange[DCT](Current)
F16 X6 - SparklingStorm/CognacBlack (Current) Follow me on Instagram (Click) |
|||||
|
Appreciate
0
|
Post Reply |
| Bookmarks |
| Tags |
| bmwclubuae, simon motorsport, tune |
|
|
