82.1918 a day since 2010!!
My numbers may be off, I didn’t account for any leap years
82.1918 a day since 2010!!
Just curious ... did that happen in the "run-off" after their qualifying dyno session...?
No I have all the pulls prior to the "run off"...so maybe they made more than that during that. I don't know. I have your pulls also if you want to see any of that.
Once again you have jumped to conclusions based solely on what you guys do. If you had called me I could have given you a good few references of folks who have been with me during extended dyno sessions and will confirm what I said.
Well scientific data takes time.. As a dyno operator myself 50 in a day would be a hell of a test subject. I'm sure many people could do more if they aren't testing different collectors, merge pipes, intake manifolds, can timing etc. Then there is the fuel temp, cell temp, engine temp, egt, o2 heat up time, flow meter calibration, fuel weight test.. 1 pull every 2 minutes seems like alot of BS, unless you are just trying to stroke your ego on how many pulls you can do. Anyone can do automated endurance testing and walk away.David Vizard wrote: ↑Mon Jun 29, 2020 4:54 pmOnce again you have jumped to conclusions based solely on what you guys do. If you had called me I could have given you a good few references of folks who have been with me during extended dyno sessions and will confirm what I said.
Those who think that 27 pulls a day is good would not last long as a dyno test subcontractor.
While I was doing cam development/tests we were well over 300 pulls a day. We got down to 29 minutes from shut down to refire for a cam change in a SBC and about the same in a A Series Mini Cooper engine.That is the sort of turn around that can be expected if you plan the test routine and the test engine is configured solely to do tests at short interval periods.
BTW here's a good contact - Dave Mountain - the boss at Mountune racing engines. He is probably the winningest race engine builder in the world. Just give him a call Warp and see what he has to say about a lowly pace of 27 tests a day. Mind you he won't think that much of you for questioning this in the first place but if you want, (FOR A CHANGE) some facts you actually researched instead of guessed then go for it. If that is not enough I can put you on to plenty of big names in the business.
Here's one - while dyno testing at the EMC about 2012 I was doing our runs with Engine tuner Scott Clark and ST poster 900 hp Mark. The engine ran into a problem which I diagnosed before the end of the run. That is the result of mega pulls and experience - not even 15 seconds let alone 15 minutes. Here is another get the job done deal. I wrote my 528 page, million dollar best seller in one day less than 6 months. That included all the drawings, photos, the building of six dyno mules, shooting the front cover etc. All this while I was still supporting half a dozen magazines. If the best you can do at Hendricks is 27 pulls a day then it was not a wise move on your part to turn down the offer of a zero cost ticket to one of my seminars. Just think how much better your fact finding would have been!!!!!
Here's one I want to take you up on Warp - from the big Facebook shindig a while ago when I challenged Scott Foxwell to a camshaft 'tell all' in front of one of my classes. I offered him up to a $1000 just to set me straight on my cam selection technique. It was a 'no go' but he did have a good out. He admitted he is not a cam expert but he has a close working relationship with a person he claims knows far more than he does or for that matter more than I do.
Anyway, once again you made a totally unresearched comment that cannot possible be right.
You claimed - 'Vizard thinks he knows everything!
Ask anyone who actually knows me and they will tell you I am the epitome of the 'eternal student'. That is hardly someone who thinks they know it all! More like it is someone who knows they don't know it all but is making a really concerted effort to close the gap between ignorance and knowledge.
Also -if you had taken up my offer as guest attendee to one of my seminars you might have a better idea of what it takes to run more than a lowly 27 R & D dyno pulls a day. Plus - and this is the point I want to make - I always start my seminars with a comment along the lines of ' if any of you are here because you think I have all the answers you can leave now! Thinks he know everything - what a joke!! And by the way 27 pulls a day hardly justifies the Warp Speed monicker!!!!
Won't you just do it yourself there chief, since you're calling Dave out?mt-engines wrote: ↑Mon Jun 29, 2020 9:26 pmHow about 1 attempt, no dyno time before the competition. Your first Cam,lifter headers, oil pan etc is your only.