****Changed Tune - Results also changed!!!!!****
MBWorld Fanatic!
Joined: Aug 2002
Posts: 1,309
Likes: 86
From: Cave Creek, AZ and Newport Beach
'22 G 63 AMG, '21 GLE 53 AMG, '20 NSX
Thanks for your courage to post the results which must be personally gratifying as your going in the right direction.
My question is how much of the improvement do you equate to fuel vs. tires. I'm a road racer and in my area tires seem to be the biggest factor in improvement after suspension.
My question is how much of the improvement do you equate to fuel vs. tires. I'm a road racer and in my area tires seem to be the biggest factor in improvement after suspension.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 3,974
Likes: 2
From: NY
See Sig
More than fair. So can we add 60' time to the equation? I dont even know what they were. I would just like to make it apples to apples. I just saw someone post it was a better 60' on the his PB. Better 60' could come from many variables like better tune, improved driving, better tire, better track prep or temp, etc. But at least it will make it an equal playing field. I mean if he went 1.9 on his old set up and 1.7 on his new set up then there is more room for arguement. .1 is a big deal Propain can you post what you think he will run with equal DA? I'm too tired to look it up for figure it out
That said if Petro were to leave ATCO in +1100 DA with "Only" an 11.5 and not beating his previous best it would have still been an indication in my mind that the new tune did its job. Running the same time at the time track in positive DA and 75 degrees say a lot to me. Every single car there would run better in better DA.
In my opinion Petro will run an 11.2 in equal DA with the tune he has now. That my conservative estimate. I think he can run an 11.0X if he does the B-Battery and does a few more tweaks.
There was one point during the day where the wind shifting to our backs. I remember many quickly getting into their cars to do some runs.
For the most part it was a headwind though.
Last edited by propain; May 14, 2011 at 09:37 AM.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 1,699
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From: Tucson, AZ
C63 AMG
There are a few thing that I want to point out before I share my own opinions on his new track times. First of all thanks for sharing the results, the before and after and all the details for us to analize.
Secondly, it is awesome to hear from Eurocharge saying that he is happy for his ex-customer even though he went with a competitor, that tells me a lot about the vendor.
As far is my personal opinion and coming from the the drag racing back ground I have to say that while I admit that the new tune helped I consider not to be much significant considering the other factors and final track numbers.
It is obvious that the car runs a little quicker and a little faster but it is a combination of mods and add ons. I would have to say wait for a little bit and see if the times can be improved significantly more before we can call it a total win-win situation. As of for now, congrats on your new set up.
Secondly, it is awesome to hear from Eurocharge saying that he is happy for his ex-customer even though he went with a competitor, that tells me a lot about the vendor.
As far is my personal opinion and coming from the the drag racing back ground I have to say that while I admit that the new tune helped I consider not to be much significant considering the other factors and final track numbers.
It is obvious that the car runs a little quicker and a little faster but it is a combination of mods and add ons. I would have to say wait for a little bit and see if the times can be improved significantly more before we can call it a total win-win situation. As of for now, congrats on your new set up.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2005
Posts: 2,207
Likes: 2
From: North Jersey
2012 CTS-V
Hey guys,
I'm glad this thread is still going and still civil.
Just to clarify, the following mods were on the car for these April 21st runs.
May 12th
The only thing different on May 12th was a CF trunk(14lbs), the tune and
the DA.
My original Eurocharged tune was a standard ECU mail in tune as was
my new MHP tune. No special custom tune. There is no doubt that the
MHP tune is more aggressive and responded better to race fuel.
I've run MS109 on my original tune with no real gains. I ran some on
12/04/10 the day I ran my personal best of 11.504.
Prior to that, my previous personal best was an 11.513 on Nov 26th
2010 which I eclipsed with the 11.504 on 12/04/10. Hardly an increase
even on MS109. DA was better on 12/04/10 which is probably why I
went faster, WOW! what a concept.
Again, this thread was created to help others and not to bash anyone.
Jerry showed a tremendous amount of class by posting in here.
I'm glad this thread is still going and still civil.
Just to clarify, the following mods were on the car for these April 21st runs.
I added a CF Hood, 18" Forgestar's and changed my DR's to Nitto during the winter and
returned back to Atco on April 21st of this year. These were the following results:
11.583 @ 122.06 (DA: -249)
11.509 @ 121.88 (DA: -871)
11.539 @ 122.05 (DA: -991)
11.525 @ 121.20 (DA: -1138)
returned back to Atco on April 21st of this year. These were the following results:
11.583 @ 122.06 (DA: -249)
11.509 @ 121.88 (DA: -871)
11.539 @ 122.05 (DA: -991)
11.525 @ 121.20 (DA: -1138)
In addition to my winter modifications above I added a CF trunk and switched tunes to
MHP. I made about 25 to 30 passes yesterday at Atco in positive DA. After a few runs on
Shell 93 I added a few gallons of MS109. Instead of posting all my runs I will post a
handful of times to compare.
(Shell 93)
11.573 @ 122.33 (DA: 362)
11.542 @ 121.81 (DA: 362)
11.576 @ 121.47 (DA: 362)
11.633 @ 121.11 (DA: 490)
11.682 @ 120.64 (DA: 490)
11.587 @ 121.62 (DA: 490)
(Added MS109)
11.584 @ 122.14 (DA: 727)
11.524 @ 122.34 (DA: 727)
11.601 @ 122.36 (DA: 727)
11.494 @ 122.96 (DA: 727)
11.500 @ 123.10 (DA: 727)
11.561 @ 123.10 (DA: 727)
11.661 @ 122.53 (DA: 806)
11.656 @ 122.40 (DA: 806)
11.476 @ 122.95 (DA: 1013)
11.484 @ 123.10 (DA: 1013)
11.415 @ 123.24 (DA: 1170) Personal Best - Last run of the day.
MHP. I made about 25 to 30 passes yesterday at Atco in positive DA. After a few runs on
Shell 93 I added a few gallons of MS109. Instead of posting all my runs I will post a
handful of times to compare.
(Shell 93)
11.573 @ 122.33 (DA: 362)
11.542 @ 121.81 (DA: 362)
11.576 @ 121.47 (DA: 362)
11.633 @ 121.11 (DA: 490)
11.682 @ 120.64 (DA: 490)
11.587 @ 121.62 (DA: 490)
(Added MS109)
11.584 @ 122.14 (DA: 727)
11.524 @ 122.34 (DA: 727)
11.601 @ 122.36 (DA: 727)
11.494 @ 122.96 (DA: 727)
11.500 @ 123.10 (DA: 727)
11.561 @ 123.10 (DA: 727)
11.661 @ 122.53 (DA: 806)
11.656 @ 122.40 (DA: 806)
11.476 @ 122.95 (DA: 1013)
11.484 @ 123.10 (DA: 1013)
11.415 @ 123.24 (DA: 1170) Personal Best - Last run of the day.
the DA.
My original Eurocharged tune was a standard ECU mail in tune as was
my new MHP tune. No special custom tune. There is no doubt that the
MHP tune is more aggressive and responded better to race fuel.
I've run MS109 on my original tune with no real gains. I ran some on
12/04/10 the day I ran my personal best of 11.504.
Prior to that, my previous personal best was an 11.513 on Nov 26th
2010 which I eclipsed with the 11.504 on 12/04/10. Hardly an increase
even on MS109. DA was better on 12/04/10 which is probably why I
went faster, WOW! what a concept.
Again, this thread was created to help others and not to bash anyone.
Jerry showed a tremendous amount of class by posting in here.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2005
Posts: 2,207
Likes: 2
From: North Jersey
2012 CTS-V
Thanks for your courage to post the results which must be personally gratifying as your going in the right direction.
My question is how much of the improvement do you equate to fuel vs. tires. I'm a road racer and in my area tires seem to be the biggest factor in improvement after suspension.
My question is how much of the improvement do you equate to fuel vs. tires. I'm a road racer and in my area tires seem to be the biggest factor in improvement after suspension.
I think both are equally important.
I've never road raced but a good said of drag radials in drag racing go
a long way. Minimizing wheel spin is key to running great times.
Race fuel can also be helpful if the tune is more aggressive. Higher
octane = more timing = more power.
MBWorld Fanatic!
Joined: Feb 2005
Posts: 6,952
Likes: 4
From: Hollywood CA
2011 twin turboed prius
Thanks for all the details.
Next time try launching off idle get the 60 down into the 1.6 range.
Had your car been adapted prior to the first run you likely would have seen your PB earlier in the day. Seems like it took some time for the 109 to add to the party.
No matter what tune you have the ECU is still adaptive and it rarely understands what you
want on your first couple runs. Looks like your car adapted by the last two passes so I would imagine its going to get faster assuming you keep pushing the car.
Next time try launching off idle get the 60 down into the 1.6 range.
Had your car been adapted prior to the first run you likely would have seen your PB earlier in the day. Seems like it took some time for the 109 to add to the party.
No matter what tune you have the ECU is still adaptive and it rarely understands what you
want on your first couple runs. Looks like your car adapted by the last two passes so I would imagine its going to get faster assuming you keep pushing the car.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2005
Posts: 2,207
Likes: 2
From: North Jersey
2012 CTS-V
Thanks for all the details.
Next time try launching off idle get the 60 down into the 1.6 range.
Had your car been adapted prior to the first run you likely would have seen your PB earlier in the day. Seems like it took some time for the 109 to add to the party.
No matter what tune you have the ECU is still adaptive and it rarely understands what you
want on your first couple runs. Looks like your car adapted by the last two passes so I would imagine its going to get faster assuming you keep pushing the car.
Next time try launching off idle get the 60 down into the 1.6 range.
Had your car been adapted prior to the first run you likely would have seen your PB earlier in the day. Seems like it took some time for the 109 to add to the party.
No matter what tune you have the ECU is still adaptive and it rarely understands what you
want on your first couple runs. Looks like your car adapted by the last two passes so I would imagine its going to get faster assuming you keep pushing the car.
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