When you showed up at 9am for your 4 dyno pulls I was not aware you required a hug, I apologises for this. I should have showed you some love. You arrived, I arrived just after, I received a few calls that I had to take, and your car was strapped on the dyno right away.
I read your jumbled mess of a post and let me try to decipher this for the rest of the people here.
The Mustang Dyno reads low. Everyone knows this in the industry. Its not that its low because its not accurate, or broken. Its that its and eddy current loaded dyno. Its a very accurate reading for power to the wheels. You have other types of dynos, Inertia and Hub dynos for example. As I told you if you wanted to compare it to a Dynojet add 13%. Everyone and their brother doubts the numbers here, so the only thing I can do is compare it to the DynoJet 1/4 mile down the street from me. And I have done this a few times. Its always within 13%. So the number you get are what it is. You can disagree all you want. We use the dyno for tuning and not to boost eggos or make car magily more powerful with numbers
We mainly work on, fabricate and tune 4 cylinder turbocharged cars here. We do dyno runs for any car or truck at times. But its just difficult to know the ins and out of every single car that arrives. It might take a few runs to know that you need to disable traction control, or put a car in a certain mode, or even that the car will not operate correctly if all 4 tires are not spinning, even if its a RWD car. Your car had a light flash on the dash, I never went back to research this but it might have felt something to do with the wheel speed, or what mode the car was dynoed in.
I asked you if the car was a 3.5 or a 3.6 I honestly didn't know off the top of my head. Its not a car I work on every day. It was just a question so it goes into the database. I am always asking customers detailed info about their cars. I just do not know exact specifications on every car out there, I would be shocked if you did.
During your dyno pulls it felt like the car was off, almost like the car was getting too much timing. You even told me it was having problems a day earlier. I asked you who tuned the car. You told me you were e-tuned. And that is why I told you you would be better off finding a tuner local for you car with a load bearing dyno. I really have no idea who the people are that tuned your car, but its impossible to tune a car right through an etune. It can be close, but its still not the way to properly tune a car, I would say 9/10 cars I get here that are e-tuned have been giving too much timing advance. (If you do not know what this is you should read a little on combustion engines) Its just impossible to guess at timing advance. You can only properly do this on a load bearing dyno. I was giving you a little advice and some direction. Because you were excited about your car, and seemed to want to get all its potential out of it.
I received a call from someone looking for a tune, as I do each day I get 3-4 calls from people looking to tune dodge caravans, saab 95's Mazda b2000's, Chevy cobalts, Kia's and all sort's of other cars, As I usually do I turn it down and say I do not tune any of those cars, Its because I don't know if they have the support to tune. I do not have time to research, I have plenty of business in the platforms I specialize in here. This one I knew had support, and I have been getting more and more calls about it. But I have never tuned one. I do not lie and say "Yeah bring it down i'm the best at tuning your car" I tell them the truth! So I told the customer I would take a look at it if they brought it in.
As you might not know all motors work off the same principles, So I was telling the person on the phone tuning is universal and it shouldn't be an issue getting the car tuned properly. A motor is an air pump essentially. All the same things apply to your car as the next. Not really sure why you were so "nervous". Its like building a deck, you can use different types of wood, but the basic principles apply to building it. Tuning a car is similar if you're looking for an easy example to understand.
And we didn't use a tach signal, we used roller speed. Its just a different way to operate the dyno. There are 3-4 ways to get the tq output on a car here. So because I didnt pop your hood doesn't mean anything. The dyno also uses a linked roller system, designed for AWD systems and traction control. There would be no chance of "popping a tcase" btw
I would not be upset if you never came back actually. Good luck with your car!
|