Custom dyno tune VS. Canned tune
#1
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2008 C63 ,2009 SL 63 AMG, 2011 SLS AMG
Custom dyno tune VS. Canned tune
Ok so we are talking about the same tune here for a Longtube header 63 AMG. would there be a diffrence between just loading the software on the ECU vs having the car making map changes and adjusting the exhust to exactley match the tune on the dyno?
Has anybody done this trial before?
thanks
Has anybody done this trial before?
thanks
#2
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There is always a few differences. The dyno tune puts a real load on the car, reads AFR directly from the wide band and fuel and timing changes can be made accordingly after reviewing the dyno results. A road tune would further more show some real IAT temp readings as you do pulls.
A mail in tune is more of generic tune, there is no AFR readings directly from the car, it is more like using an existing previuosly tune car to use it as a reference. Mail in tunes are typically oriented on the richer AFR side to give you a bit of safety cushing.
You can always use someone's dyno tuned files but it will never be exactly accurate because elevation, gasoline, weather and other factors are different. I am not expert but I have had the following cars tuned:
Eclipse GSX(tuned with DSM Link) Another one I had it tune with AEM EMS
Evos(3 of them) tuned with Dynoflash(Mail in tune), road tuned and also Dyno tune
WRX tuned with UTEC piggyback (10 years ago) later on tune by Clark(look at nasioc)
BMW 335i tuned with a first ever available piggyback (Vishnu Procede V1.4) 4.5 years ago about the same time as Terry burguer
C6 Z06 tuned with HP tuners (by two different tuners)
Porsche Carrera4 tune with Powerchip (12 years ago in the UK)
C63 mail in tune by MHP
Jetta MKV GLI tune with GIAC
Golf GTI MKV tune with APR
My .2c
A mail in tune is more of generic tune, there is no AFR readings directly from the car, it is more like using an existing previuosly tune car to use it as a reference. Mail in tunes are typically oriented on the richer AFR side to give you a bit of safety cushing.
You can always use someone's dyno tuned files but it will never be exactly accurate because elevation, gasoline, weather and other factors are different. I am not expert but I have had the following cars tuned:
Eclipse GSX(tuned with DSM Link) Another one I had it tune with AEM EMS
Evos(3 of them) tuned with Dynoflash(Mail in tune), road tuned and also Dyno tune
WRX tuned with UTEC piggyback (10 years ago) later on tune by Clark(look at nasioc)
BMW 335i tuned with a first ever available piggyback (Vishnu Procede V1.4) 4.5 years ago about the same time as Terry burguer
C6 Z06 tuned with HP tuners (by two different tuners)
Porsche Carrera4 tune with Powerchip (12 years ago in the UK)
C63 mail in tune by MHP
Jetta MKV GLI tune with GIAC
Golf GTI MKV tune with APR
My .2c
Last edited by C63newdude; 01-01-2012 at 06:02 PM.
#4
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^^ That would be very feasible and realistic. I am assuming that you are talking about 15-20whp increase from going from Mail in tune to dyno tune/road tune right?
#6
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Well..yeah.. mainly you are eliminating any engine knock first, then you can typically lean the AFR by adjusting fuel trims and messing with the timing. You are also reading IDC(injector duty cycle percentage) but on our aplication you will never run out of fuel unless Supercharged.
Not always custom tuning is the best option. Here where I live we go 90 degrees temperature differences within every 6 months. I had some of my previous turbo cars tuned in the winter at high boost and had to change my tune again to safely run the car in the summers otherwise I would have tons of engine knock.
For that reason a more generic less agressive mail -in tune might be the way to go aiming for richer AFR and leaving the timing alone(stock). Just my .2c
Not always custom tuning is the best option. Here where I live we go 90 degrees temperature differences within every 6 months. I had some of my previous turbo cars tuned in the winter at high boost and had to change my tune again to safely run the car in the summers otherwise I would have tons of engine knock.
For that reason a more generic less agressive mail -in tune might be the way to go aiming for richer AFR and leaving the timing alone(stock). Just my .2c
Last edited by C63newdude; 01-02-2012 at 12:25 PM.
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2008 C63 ,2009 SL 63 AMG, 2011 SLS AMG
Well..yeah.. mainly you are eliminating any engine knock first, then you can typically lean the AFR by adjusting fuel trims and messing with the timing.
Not always custom tuning is the best option. Here where I live we go 90 degrees temperature differences within every 6 months. I had some of my previous turbo cars tuned in the winter at high boost and had to change my tune again to safely run the car in the summers otherwise I would have tons of engine knock.
For that reason a more generic less agressive mail -in tune might be the way to go aiming for richer AFR and leaving the timing alone(stock). Just my .2c
Not always custom tuning is the best option. Here where I live we go 90 degrees temperature differences within every 6 months. I had some of my previous turbo cars tuned in the winter at high boost and had to change my tune again to safely run the car in the summers otherwise I would have tons of engine knock.
For that reason a more generic less agressive mail -in tune might be the way to go aiming for richer AFR and leaving the timing alone(stock). Just my .2c
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#8
#9
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I live far from MHP but I trust their in house bench files because they are straight from cars tested on the road and dynos. I am aware that it might not yield the most HP but I am OK with that because I am sure it is tuned with some safe margin in mind.
Last edited by C63newdude; 01-02-2012 at 12:25 PM.
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2012 CTS-V
Had mine custom tuned by MHP last month. Picked up 17RWHP & 20RWTQ at the wheels and 30RWTQ in the midrange from 3,000 to 5,000 RPM with a razor flat a/f ratio.
https://mbworld.org/forums/c63-amg-w...93-octane.html
https://mbworld.org/forums/c63-amg-w...93-octane.html
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2008 C63 ,2009 SL 63 AMG, 2011 SLS AMG
Had mine custom tuned by MHP last month. Picked up 17RWHP & 20RWTQ at the wheels and 30RWTQ in the midrange from 3,000 to 5,000 RPM with a razor flat a/f ratio.
https://mbworld.org/forums/c63-amg-w...93-octane.html
https://mbworld.org/forums/c63-amg-w...93-octane.html