Some Weistec toys for Mr. PERTPLUS - Supercharged Mercedes C63 by ACG San Diego
Weistec Stage 1+ Supercharger
Weistec Oil separator
MBH Try-Y Longtube Headers w/HFC
Akrapovic Slip-On titanium Exhaust
Carbonio Airbox Covers









I wish I had a picture with new orange caliper paint. feel free to ask the questions.
Very nice gains on a Mustang Dyno. Hopefully you are a track guy and we get to see a few passes. Enjoy it!
Last edited by propain; Jun 12, 2012 at 08:35 PM.
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I have a question... This is something I always wonder when I see such low reading dynos: I understand that Mustang dynos can read lower than Dynojets. I, myself, have dynoed a couple cars on Mustangs. Why does a dyno like ACG's record power figures that are lower than the car actually produces.
For instance, if you use the 18% correction factor to the 380 rwhp baseline (header, tune car) the dyno shows the car makes around 463 bhp, which is like 12 bhp over the SAE figure provided by MB/AMG for a stock C63.
I understand we're interested in the delta here and dynos are just a tool... yada yada. But, why doesn't this dyno and many others like it actually record a more accurate hp figure? Does it have to do with software settings in the dyno equipment? The way the dyno was installed?
I know that my experience on a Mustang dyno was different. The results were more reflective of the actual hp being produced by the motor.
Please know, I'm not trying to start any argument. I'm just genuinely curious. There must be a reason, and I haven't learned what that is yet.
Dynojet is an inertia dyno where the roller has a fixed mass. Once you do a run, your result gets corrected for the weather and you have your result. Due to the fact that the mass is fixed, it doesn't reflect the true road conditions and load.
Mustang and DynoDynamics are load chassis dynomometers. The rollers are small; however, the dynomometer applies the load to the rollers in order to simulate realistic driving conditions. On average, there is 8-13% difference between Dynojet and the load bearing dynomometers.
Last edited by Girard@ACGautomotive; Jun 13, 2012 at 03:23 PM.
Dynojet is an inertia dyno where the roller has a fixed mass. Once you do a run, your result gets corrected for the weather and you have your result. Due to the fact that the mass is fixed, it doesn't reflect the true road conditions and load.
Mustang and DynoDynamics are load chassis dynomometers. The rollers are small; however, the dynomometer applies the load to the rollers in order to simulate realistic driving conditions. On average, there is 8-13% difference between Dynojet and the load bearing dynomometers.
In my opinion, Dynojet are usually more repeatable results, because the load-based dynos can vary so greatly with calibrations and correction factors.
In my opinion, Dynojet are usually more repeatable results, because the load-based dynos can vary so greatly with calibrations and correction factors.







