1990StangLX said:like i said about 5 times before. the numbers are UNCORRECTED. that means that they aren't corrected for SAE or STD. I just don't know how to do the correction or else I would.
honestly i don't know enough about cars and engines to understand why the results are the way they are. the only information i have from the dyno tune is the 2 numerical printouts and 1 graph sheet. i will try to scan and post them when i get home but i took the numbers i posted right off the numerical data sheet.trinity_gt said:Post the plots. Even uncorrected for ambient conditions (baro, temp, humidity and so on), the numbers still don't make sense. Your power and torque peaks don't even appear, to me at least, to occur at the correct RPM values.
Since when is a 4.6 with just a TB, plenum and FIPK making more torque at nearly 4800 than it is at 4000, Ford's own advertised torque peak? My GT peaks at around 4100-4200 and is very flat from 4000-4300 before beginning and precipitous drop; with the pullies, my torque peak appeared at 4100 (285.9) and by 4800 was down to 270 or so indicating the rate of drop.
"Correcting" these numbers isn't going to move where they're appearing in the RPM band.
Maybe you have a freak engine or something and it actually is doing this...
oh ok cool i'll call them up and ask them if they can do that.billyfe390 said:The guy should be able to give you a disc with the runs on it then you can go to dynojets website and grab the runviewer with that you can change the correction factor anyway you like it.
1990StangLX said:Ok, I'm back with some very raw numbers.
max hp: 272.4 @ 5501
max tq: 282.0 @ 4772
temp: 61.9F
barometer: 30.02
note: these are uncorrected #'s, so if anyone has a website I can go to in order to input them for correction, post it
i agree, they do seem very high even uncorrected. however i pointed this out to the guy who runs the dyno and he said he wasn't surprised at all. he even went so far as to state that he was hoping we'd get to 280 at the wheels! needless to say, my bubble has now been sufficiently burst for me to slink back into the shadows.03trubluGT said:Geeez, those seem high.
My dyno on Thursday yielded the numbers in my sig. Uncorrected was only 6 HP (278 RWHP) and 7 TQ (317 RWTQ) difference.
My peak HP came at about 5100 and the peak TQ came at about 4150 or so.
Matt
What he said.billyfe390 said:The guy should be able to give you a disc with the runs on it then you can go to dynojets website and grab the runviewer with that you can change the correction factor anyway you like it.
can you think of any reason for that? like the dyno being off or some other possibility?03trubluGT said:The curves look about right, but the HP looks disproportionate to the standard 4.6 HP curve. It should be lower as compared to the ones on my car (and I have 52 pulls on mine).
Matt
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