+ 55 whp Tune. Mustang Dyno
 

Just got my uprev tune at awdtuning (texas) I was expecting 15whp +/- but the mustang dyno shows 237 before and 292 after (234 TQ). I only have topspeed catback with resonator,y-pipe and short ram intakes. Ill post the dyno sheets today if anyone is interested. I hear mustang dynos read quite a bit lower?
I havent got too crazy on it but it is noticeably smoother. Hopefully this will hold me over for a little till I go FI.

Your before sounds way low..................

:iagree: makes me wonder what your tq was before if you were so low on the wheels. Sounds like maybe some numbers were fudged.....:ughdance:

Yea thats kind of what i was thinking but wasn't sure. The tuned hp seems in line with others but I thought most people started ~250 .
I get home in a few, ill post all my numbers and graphs.

The other print outs are at home.

Attachment 69675

Ya that is too much of a gain with just bolt ons. Hopefully the tune numbers are correct and it was just your starting off numbers that were wrong b/c 55+ you would feel like your driving a whole different car. In the end the question is are you happy with it?

What gear did he use for the pulls? What RPM did he stop the pull? Those are some thick A$$ lines on a graph LOL looks like a kid did it with a magic marker :icon17:

Do you have the sheets showing the A/F ratio?

Yea, and though it is noticeably smoother/more powerful, It doesn't feel like a whole new car. I figured it was low, but its always hard to guess with inconsistency between all dyno readings I've seen. Time will tell if I'm happy with it I guess. But hell, I have the license now so worst case I throw on some HFC's as an excuse to get another tune.

Maybe he wasn't full throttle on the first pull? Both pulls cut short, so I'm thinking they were done in 5th and the Speed limiter wasn't removed.

Maybe he's running really rich like me, I got 279.8 and 216tq on a dynamics with exhaust and intake

When I dyno'd my car, they couldnt dyno in 5th (7AT) because i hit the topspeed of 155mph in 5th gear.. So they did mine in 4th gear. Same numbers apparently..?

Anyways, those are good gains, however I think on a 6Spd baseline is around 260-270

I wonder if it was spinning on the dyno for the first pull? Either way who cares as long as you are enjoying the final results!

Thanks,
Alex Goodwin
AlexG@motionlabtuning.com

Damn, but I'm sure they didn't get the right reading? How was the experience there? I thought about getting tuned there.

Why didn't you raise your redline? How much did they charge?

I wish I would have known, maybe we could have gotten a group tune deal.

I hate to say it but it looks like they may have played with the correction factor given the way that the two torque curves are presented. He could have been running pig rich but even still ...

Normally the correction factor is controlled by the atmospheric sensor and is typically somewhere in the range of 0.95 (scale output down 5%) to 1.05 (scale output up 5%), however the operator can override this and some tuners play with the value to make them look like rock stars.

I think a stock car is around 255-260 whp on a Mustang dyno and with that level of simple bolt on mods I would expect around 270-275 after tune.

Bottom line, if the OP really picked up 55hp then that should be very noticeable in the old butt dyno, so it is up to him to decide how much was smoke and how much was real.

It was $300 for the license, $350 for the tune. They are a big name for tuning subarus around here so i trusted them. Unfortunately timing wise i had to drop off and pick up as they were closing so i didn't get to ask as many questions as i'd like...but like i said, i trusted their rep. Its really hard to say how I feel about the tune though. Driving for a few days now i can tell you for a fact its not anything close to +50 whp. I will probably throw on HFC, maybe headers(maybe not since SC is planned) and get a tune at one of the other local shops. My uprev license is written to my ecu now, is that correct?
Its a 6MT btw. Thanks for all the feedback though.

Yes the license is written to the ECU so you can get it retuned by any Uprev shop and just pay the hourly rate for tuning.

Had a friend go to them with his G37. They did a decent job. A few months later some of us took a trip down to Austin to UpRev and UpRev still pulled another 13whp out of their tune. Its worth it to take the trip to Austin for the tune.

This is why I am skeptical of all values not derived from a dynojet, ideally with SAE correction (or STD for FI'd cars).

You can't control the weather (and no correction factor is perfect), you can't control every transient trim on the ECU, and you can't perfectly control tire slip, but you CAN control the known weight of a drum and then calculate power and torque based on how quickly you can turn it.

Unless a shop gets creative with where they take their ambient temp measurements (and some do...), values across dynojet units are VERY comparable.

Too many other adjustable variables come into play with other (e.g., load holding) dynamometers , so very, very difficult to make comparisons, sometimes even on the same car.

In any case, the final numbers sound similar to dynojet derived values with similar mods, so congrats :tup:

Awdtuning are not good with uprev I know from experience.

Guess I can cross them off list.

Maybe khan tuning or jotech

I even tried Jotech. It kept throwing codes. Mainly that the car is running too lean. If I were to do it again it would be at uprev in Austin.

There are some brand new EcuTek calibrations that were just released. Anyone telling you they'll give you gains of 50+ hp on an NA car with nothing but a tune is full of .. you know what. But are there substantial gains to be made from the tune? Absolutely. EcuTek is really going to give Uprev a run for its money, especially when the RaceRom features get perfected. You guys should check it out!

50 hp off a tune alone? highly unlikely. that first number sounds waayyy low. the after is just about right tho :)

More dyno curves from AWDTuning
 

Following up on your low stock numbers, Keith gave me this printout comparing stock (RED), another CAI+CBE mod (GREEN) and mine (BLUE - JWT pop charger + FI CBE). As far as your stock numbers, they don't seem to be that much out of line with this one. I think he named his Mustang Dyno "Heartbreaker". My tuned numbers are in line with what others have reported getting from Seb & Greg at Speciality Z, so Keith is doing something right!

dyno report

You didn't gain nearly 20% in power from a tune on a N/A car... it's impossible. Maybe if 2 cylinders weren't firing and now suddenly are...

Mustangs and all other load holding dynos are superior for tuning, but not for taking reliable, repeatable, and meaningful measures.

Whatever you made stock will remain a mystery (but was probably around 275 - 280 on a dynojet).

Find a dynojet, and you will have numbers that can be more easily compared to other vehicles measured on other dynojets. They are very, very consistent from shop to shop model to model.

Only weather and correction factor choice will obfuscate things -- no correction factor is perfect and treat SAE as a "lower bound" and STD as an "upper bound" on what you will be actually putting down on any given day under those approximate ambient conditions.

Anyway, something in the 295 - 300 ball park is probably close to what you will find on a dynojet with those mods. Perhaps a bit more with nice weather and generous correction factor.

EDIT: Whoops, I didn't realize I had commented on this already some time ago... :p