How does the exhaust exit the truck? If it’s a single outlet 5" or less and I can put a hose over it I’ll consider it. We do have an exhaust evacuation system, but it’s not a sealed area so I have to be able to get the hose on your exhaust.
We ran through all the calibration procedures today for dyno inertia weight, parasitic loss, etc. The AWD numbers didn’t seem to change much, but I can’t say for sure yet. The 2WD ones got a little higher. It’s set the way Mustang intended with no extra fudge factors or monkey business. AWD cars seem to read real low and 2WD cars seem to read pretty close to Dynojet. Time will tell as we run more cars.
I didn’t charge anyone for dyno time while we were getting things set up because I knew that it needed calibrated. Now that’s all done so everything run from this morning on is on the same playing field.
How about comparisons with drift box? or the iphone dynolicious lol.
I say this because the drift box wont care if its AWD RWD or FWD… you could get a decent number off that to determine how far off the dyno is from what the driftbox is.
Yes I know the dyno is more accurate its just the drift boxes use a consistent method.
Driftbox only gives a peak WHP figure. No WHP curve or torque numbers of any kind so I can’t really compare it.
It can give you an acceleration curve which mimics a torque curve if you do it right, but there are no torque numbers…just acceleration figures which I don’t know how you could attempt to convert. It was helpful for tuning because you could see the shape of the curve and gains/losses, but it won’t give you dyno numbers.
Ours is the same way.
-Em
Cobb and EFI Logics show a stock 08 STI putting out around 22X WHP. On our dyno an 08 STI did less than 200 whp stock. Those shops have the exact same dyno we do.
Cobb shows an 08 WRX putting out 200 whp bone stock. On ours an 08 WRX with a downpipe and stock tune put down about 160 WHP.
I’ll be keeping tabs on this as we run more cars. For now I can tell you that the dyno is dead repeatable so it serves it’s real purpose as a tuning tool. The 08 STI laid graph upon graph one on top of the next all within 1 whp in areas where changes were not made between pulls. Steady state testing worked great for the standalones I’ve tuned on it, just as it did on my last dyno.
For reference, AMS posted a chart of a bone stock STI at 25X WHP vs. less than 200 whp on our dyno. How’s that for a massive difference between dynos? So much for horsepower being a unit of measure. 
the proper way to consistently measure hp output dyno to dyno is with a coastdown procedure.
the vehicle manufacturers provide resulting targets to their vehicles after completing their own tests, so when an independent source trying to do their own testing use the manufacturer targets and come up with their own sets for the proper roadload coefficients; they can have their hp = the manufacturer hp. this procedure essentially tares out the differences between individual dynamometer parasitics/differences.
you need the manufacturer targets to get your own dyno sets. its really just a deceleration curve applied to the variable load dyno.
bc performance shops dont perform coast downs, their dyno numbers are not comperable in any way shape or form. they are not certified to automotive testing either. its simply a measured value. i posted this in STMs dyno thread too. people still ask the question why dyno numbers are different, and i just wrote the answer.
Talk about a heart breaker dyno. 
Oh well, at least all the :snky: types will like it. Getting base lines for stock cars is a good way to keep people in check for how much they’re making vs. a stock car.
congrats mike! didnt even know…
which is why i am not said to see my numbers close to or over 100whp over stock. for the little amount of mods i have im very happy. you’ll have to let me know mike when other sti’s with similar mods dyno, and how their numbers are so i can see how i compare 
Both of us have done all that. If you look above, I mention that we did all the calibrating yesterday.
You run a 2WD car up to 150 mph and let it decel to get your parasitic loss curve, then there’s another procedure where you decel from 30 to 15 mph 8 times. Then you repeat both those procedures with an AWD car. Then there’s the PAU calibration.
That’s all been done.
when I ran my turbo SHO on the dyno years before it got a turbo we did a parasitic loss on it and I made 176whp with something like 165 loss down from 140mph.
http://videos.streetfire.net/video/dyno-94-SHO_140226.htm
hahah I used to think that car was fast too.
I’ll have to get back on it to see what I am at after the recalibration. There was plenty of questions swirling about as to how my car made the same HP as a car in Rochester with a similar setup on 30psi while I was only on 17.
Do you want me to see if I can get you guys in contact with my friend down here in Florida who has been using his AWD dyno for years now?
He is an engineer and such so he might be able to help out. I don’t know exactly what type of dyno his is but he still might be able to help. Let me know if you guys want me to get hold of him to contact you guys.
that’s his site if it helps at all.
Let me know
-Ryan
i saw that you calibrated it.
do you do that coast down procedure for every single car you run with the manufacturer targets to determine your dynos road load sets?
edit: there is a difference between calibrating a dyno and running the coast down procedure.
Consistency is really all that matters. HP numbers are just for egos, power curves are what counts. :tup:
I don’t know how I can be more clear. We performed all of the calibration procedures on Monday. It was quite simple. We just hadn’t done it yet. :tup: Now that it’s set we’re not changing it. Again, the cars that we ran the first few days were run at no charge since their numbers weren’t accurate since the dyno hadn’t been calibrated yet. We were just testing everything out.
Carbonfiberhooded your numbers will be lower now. Your car is the only one with a graph we posted that will be lower now that the dyno is calibrated.
EDIT: The 2WD numbers actually went up so Jay’s 240 would read more if we run it again. I confirmed this by running Mike’s Roush again and his grpah has been updated.
how about a flow chart, or a bar graph. pretty pics and colors alway help.
at previous place of employment we performed weekly dynamometer calibrations in EPA certified laboratories. that seemed to be the industry standard.
thats a good idea for maintaining the record of your calibrations. :tup:
you can also see trends developing and determine if your machine needs further calibration or repair.
i dont know how i can be more clear, i thought the answer would be yes or no.
Have you guys had a foot race on it yet to see which tech makes the most power?
My money is on Justin on a weekend, when he’s pissed, and after a monster.