Attention: TDR Forum Junkies Well, I got the truck dynoed this morning and the results were the only thing that really made me happy about the whole experience.
Just to get it out of the way first, I made 308/748 on my third run after a quick plate adjustment. The first two runs were with the plate about 3/4 forward and it made 294/696.
Now, the thing that I didn't like was that fact that I didn't get to drive my own truck on the dynoand a few other things I'm about to explain. I am a dyno tech myself right now and the way he drove my truck ****** me off and I was unimpressed on the way he achieved results. The dyno was a Superflow in the ground roller, not sure what kind(water brake, AC,??). The way he tested my truck, being a manual, he slowly accelerated to about 30-40mph and into 4th gear and then just punched it to like 3200 rpm! It was cool and that rpm didn't bother me much at the moment. Then after another baseline I made my plate adjustment and the third run he did the same thing 4th gear and punching it, he took it to like 3600-3700!!
I told him what the hell was he doing and he said he didn't know, he had never done diesel trucks like mine before!?!?!? This really ****** me off and for a guy like this to own a good size racing shop and be this disrepecting to a customers engine was even more upsetting. I voiced my concern and he didn't seem to care any, but I did, as I have never reached that rpm before for the basic reason of no power in that range and it hurts the engine. I just hope its ok after that stupidity... 
:{ Any dyno operator for a shop should be at least courtious enought to ask a little bit about the engine and how the owner would like it properly run to prevent any mishaps or lawsuits form engine failures. The stock tach says it redlines @ 3000, so I ya don't know then don't push it, it will make power below those revs. Obvioulsy, this guy didn't know jack about diesels or how to dyno them properly.
So, anyway, the numbers were just about right where I thought they would be, about 15 HP down and torque was 30 ft/lbs higher than expected. But who knows if they were accurate from the crazy drivin'.
Just a quick note about the way the other trucks were getting dynoed, the auto transmission trucks seemed to make lower power than stock almost. Not sure what the guys was doing but he would do a similar pull as if it had a manual. I have no experience with chassis dynos but the way he was doing it was probably why the results were wacked.
For example, a huge 6" lifted Chevy Durmax dually showed up with the Banks 6 gun and I was interested to really see how it performed since it is competition and that it was a pretty nice truck, but of course I am CTD biased. It only made like 290/600?!?!? The owner said he always leaves it on level 6 and I thought it should have made way more power than that, what gives?
After that a 12v Dodge showed up, that had a little more goodies than mine, so I was stoked to see what my future holds for mine. The Dodge had a bigger turbo and 370s and only made something like 303/650? That was the eye opener than really made me know this dyno operator was doing something wrong. A lot of the guys there agreed with me on this too. Something about the auto trucks wasn't working with the dyno. The Dodge should have at least been close to 400/850+ with all it's goodies. I felt bad cuz we're paying good money for this($50 for first pull, $10 each after) and if your getting funky data from obvious big power mods then something is wrong. It happened with about 4 trucks there, more were coming in the afternoon but I had to ski-daddle.
So, that was my first dyno experience and next time I am going to STC or some where people know what they are doing with diesels. Sorry for the long, rambling story, but I had to share my experience.
Joe
Just to get it out of the way first, I made 308/748 on my third run after a quick plate adjustment. The first two runs were with the plate about 3/4 forward and it made 294/696.
Now, the thing that I didn't like was that fact that I didn't get to drive my own truck on the dynoand a few other things I'm about to explain. I am a dyno tech myself right now and the way he drove my truck ****** me off and I was unimpressed on the way he achieved results. The dyno was a Superflow in the ground roller, not sure what kind(water brake, AC,??). The way he tested my truck, being a manual, he slowly accelerated to about 30-40mph and into 4th gear and then just punched it to like 3200 rpm! It was cool and that rpm didn't bother me much at the moment. Then after another baseline I made my plate adjustment and the third run he did the same thing 4th gear and punching it, he took it to like 3600-3700!!
I told him what the hell was he doing and he said he didn't know, he had never done diesel trucks like mine before!?!?!? This really ****** me off and for a guy like this to own a good size racing shop and be this disrepecting to a customers engine was even more upsetting. I voiced my concern and he didn't seem to care any, but I did, as I have never reached that rpm before for the basic reason of no power in that range and it hurts the engine. I just hope its ok after that stupidity... :{ Any dyno operator for a shop should be at least courtious enought to ask a little bit about the engine and how the owner would like it properly run to prevent any mishaps or lawsuits form engine failures. The stock tach says it redlines @ 3000, so I ya don't know then don't push it, it will make power below those revs. Obvioulsy, this guy didn't know jack about diesels or how to dyno them properly. So, anyway, the numbers were just about right where I thought they would be, about 15 HP down and torque was 30 ft/lbs higher than expected. But who knows if they were accurate from the crazy drivin'.
Just a quick note about the way the other trucks were getting dynoed, the auto transmission trucks seemed to make lower power than stock almost. Not sure what the guys was doing but he would do a similar pull as if it had a manual. I have no experience with chassis dynos but the way he was doing it was probably why the results were wacked.
For example, a huge 6" lifted Chevy Durmax dually showed up with the Banks 6 gun and I was interested to really see how it performed since it is competition and that it was a pretty nice truck, but of course I am CTD biased. It only made like 290/600?!?!? The owner said he always leaves it on level 6 and I thought it should have made way more power than that, what gives?
After that a 12v Dodge showed up, that had a little more goodies than mine, so I was stoked to see what my future holds for mine. The Dodge had a bigger turbo and 370s and only made something like 303/650? That was the eye opener than really made me know this dyno operator was doing something wrong. A lot of the guys there agreed with me on this too. Something about the auto trucks wasn't working with the dyno. The Dodge should have at least been close to 400/850+ with all it's goodies. I felt bad cuz we're paying good money for this($50 for first pull, $10 each after) and if your getting funky data from obvious big power mods then something is wrong. It happened with about 4 trucks there, more were coming in the afternoon but I had to ski-daddle.
So, that was my first dyno experience and next time I am going to STC or some where people know what they are doing with diesels. Sorry for the long, rambling story, but I had to share my experience.
Joe
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Oo.
