We are installing another E-force this week, It will be installed as it ships their tune, their tuner, I will post the results when they are available.
The numbers that are spit out here are real and lower than typiclaly found on the industry standard DynoJet. Always have been always will be.
Ex: Customer makes 644rwhp, 3900# runs 9.8's at nearly 145mph.
Ex: Customer makes 540rwhp, 3800# runs 10.7's in the mid 130's
Ex: Customer makes 580rwhp, 3700# runs 9.9 at 140ish
Ex: Customer makes 420rwph, 3800# runs 11.0 at 126mph (same tune, no changes, 1 week later at a DJ dynoday, made 490rwhp).
Another example is from back in early 05, we met with one of the gurus from SCT at a shop in MI. Little was known about DBW then and forced induction was realitively rare for the s197 at that time. This shop had 2 dynos, A Mustang and a DJ, the car made 512 on their Mustang (shop admittedly set up the Mustang to inflate the numbers to reflect more "DJ like numbers"), Drove the car onto the DJ and with the same exact tune, NO changes made, made 540. Brought that car back to our shop put it on our non influeced dyno and (NO Changes) it made 499. Did the car actually make anymore or less power from dyno to dyno, no. The data logs show the same boost, the same load, the same afr, the same spark and the same MAF counts, Meaning the car consumed the same amount of air and fuel (which is HP), and utilized the same amount of spark.
So which is right?
I am not saying this to defend anyone, I am writing this to educate everyone. Because Chassis dynos have somehow become less of a tool and more of a gauge.
Dynos are tools and unfortunately not quite as standardized as they should be. I know for a fact that some places use different correction factors, for no other reason than that is what they like to see, these correction factors are okay as long as they are used all the time. If they change the correction type on a given car they are only fooling themselves.
I am sure that some folks have a few dragstrips in their area, one may treat you better than the next, in fact we have one here that runs downhill. That track is typically quicker. There is one that runs uphill, typically slower. Some tracks may even have their lights a few feet closer than the next, some are at higher altitudes. Is any of this bad, no. But it does mean that the results from one track are only comparable to that particular vacility, not all. You are not going to run the same e.t. at Denver in the summer that you do at ATCO in the fall. The same holds true for dynos. The results are only realitive to that particular machine.
Again this is in defense to nothing, but just insight.