EPL vs AMS dyno numbers?
#1
11-02-2009, 10:27 AM
Join Date: Apr 2009
Location: Bloomingdale, IL
Posts: 507
Rep Power: 47 
EPL vs AMS dyno numbers?
As some of you may know, I will be going into AMS to have my car tuned by them and EPL. My car put down 535awhp on Tony's dyno (mustang) does anyone know what that will translate to approximatly on AMS's dyno (dynojet)?
I am so looking forward to seeing 1.4 bar again and will be hitting the track right after the tuning session. I hope to trap in the low 130s.
I am so looking forward to seeing 1.4 bar again and will be hitting the track right after the tuning session. I hope to trap in the low 130s.
#4
11-02-2009, 11:17 AM
Join Date: Apr 2009
Location: Bloomingdale, IL
Posts: 507
Rep Power: 47 So there is no way for me to determine if the retune actually yielded some gains?
#6
11-02-2009, 11:38 AM
Yes, you dyno before and after on the SAME dyno. And keep the conditions as similar as possible.
#7
11-02-2009, 12:36 PM
Picture this for comparison with the dynos stated above. Analogy isn't so much exact but you get the idea of comparison of each.
DynoJet - Pick the car up and spin the wheels
Mustang Dyno - Place the car on the dyno (similar to how it would be sitting on the street) and spin the wheels.
Not for sure about AWD drivetrain loss in a Porsche but RW (I.E. for Vettes and Mustangs ) and one is looking at 5
% to 7% difference lower from Mustang Dyno numbers vs. DynoJet Dyno numbers
This calculated on same DA, temps, etc.etc. as well.
DynoJet - Pick the car up and spin the wheels
Mustang Dyno - Place the car on the dyno (similar to how it would be sitting on the street) and spin the wheels.
Not for sure about AWD drivetrain loss in a Porsche but RW (I.E. for Vettes and Mustangs ) and one is looking at 5
% to 7% difference lower from Mustang Dyno numbers vs. DynoJet Dyno numbers
This calculated on same DA, temps, etc.etc. as well.
Last edited by Almo; 11-02-2009 at 09:48 PM.
Trending Topics
#8
11-02-2009, 02:31 PM
Join Date: Apr 2009
Location: Bloomingdale, IL
Posts: 507
Rep Power: 47 Picture this for comparison with the dynos stated above. Analogy isn't so much exact but you get the idea of comparison of each.
DynoJet - Pick the car up and spin the wheels
Mustang Dyno - Place the car on the dyno (similar to how it would be sitting on the street) and spin the wheels.
Not for sure about AWD drivetrain loss in a Porsche but RW (I.E. for Vettes and Mustangs ) and one is looking at 5
% to 7% difference lower from DynoJet Dyno numbers vs. Mustang Dyno numbers.
This calculated on same DA, temps, etc.etc. as well.
DynoJet - Pick the car up and spin the wheels
Mustang Dyno - Place the car on the dyno (similar to how it would be sitting on the street) and spin the wheels.
Not for sure about AWD drivetrain loss in a Porsche but RW (I.E. for Vettes and Mustangs ) and one is looking at 5
% to 7% difference lower from DynoJet Dyno numbers vs. Mustang Dyno numbers.
This calculated on same DA, temps, etc.etc. as well.
I always heard it the other way around that Mustangs read lower then Dynojet.
#9
11-02-2009, 02:36 PM
I think he mixed it up. The DynoJet will ALWAYS read higher than a Mustang dyno.
#12
11-02-2009, 08:47 PM
Registered User
Join Date: Feb 2004
Location: In a Canyon - Really :)
Posts: 4,880
Rep Power: 288
What changes have you made?
what turbos are you running?
What octane?
what turbos are you running?
What octane?
As some of you may know, I will be going into AMS to have my car tuned by them and EPL. My car put down 535awhp on Tony's dyno (mustang) does anyone know what that will translate to approximatly on AMS's dyno (dynojet)?
I am so looking forward to seeing 1.4 bar again and will be hitting the track right after the tuning session. I hope to trap in the low 130s.
I am so looking forward to seeing 1.4 bar again and will be hitting the track right after the tuning session. I hope to trap in the low 130s.
#13
11-02-2009, 09:47 PM
Had typed what I did in an incorrect order. Edited and fixed now.
Last edited by Almo; 11-02-2009 at 09:50 PM.
#14
11-03-2009, 11:29 AM
Hi guys,
Just wanted to interject very quickly about dynos. It is very hard to generalize the results that come out of one dyno to the numbers of another. Just because you have 'A' dyno and you want to compare it to 'B' dyno you can't just throw blind correction factors at it. Due to the number of user adjustable features on most dynos you can have a specific brand of dyno that will read 10% less than that same exact dyno in another shop.
Dyno's which are load based require a 'calibration' which can be the source of much 'interpretation' and also makes a comparison between them pretty much impossible.
Two good point which have been mentioned in the this thread already are:
60-130 tests
Using the same dyno in the same shop to extrapolate results.
A dynamometer is only a tuning tool, and not much more. I know what the numbers on my dyno mean when it says 500hp because I have personally made the last 19,000 dyno pulls on it, but I don't routinely use anyone else's dyno that much
-Chris
Just wanted to interject very quickly about dynos. It is very hard to generalize the results that come out of one dyno to the numbers of another. Just because you have 'A' dyno and you want to compare it to 'B' dyno you can't just throw blind correction factors at it. Due to the number of user adjustable features on most dynos you can have a specific brand of dyno that will read 10% less than that same exact dyno in another shop.
Dyno's which are load based require a 'calibration' which can be the source of much 'interpretation' and also makes a comparison between them pretty much impossible.
Two good point which have been mentioned in the this thread already are:
60-130 tests
Using the same dyno in the same shop to extrapolate results.
A dynamometer is only a tuning tool, and not much more. I know what the numbers on my dyno mean when it says 500hp because I have personally made the last 19,000 dyno pulls on it, but I don't routinely use anyone else's dyno that much
-Chris