Got the truck up on the dyno today and came up with 221.4 hp @ 5250 rpms and 243.3 ft lbs at 4000. Mods are listed in sig. Is is me or is this a little low? This was on a Mustang Dyno so I know that has something to do with it but we had a guy from Mustang running it in the shop here today and making sure the calibrations were correct. Anyone have any similar crappy results on a Mustang or is something wrong with my truck here?

 

Hehe, thanks now I feel a little better about my dyno results.

Mustang dyno usually reads lower than a DynoJet but I'm not sure by how much. Your results do seem pretty low. What was your A/F ratio? Do you have the dyno sheet you can post?

 

Definatly something wrong with the dyno, maybe you should at least hav seen the 280 mark maybe?

 

Lol, damnit dont make me feel bad! We don't have any logging software so I'm not sure of any of the specs really. I will post the info I have on my dyno sheet in a sec. On a brighter note, I had higher #s than anyone that ran on the dyno today, including an old Cougar that is pretty mean and a 77 single cab Chevy with a 402. Also in the 1/4 mile test it said I ran a 16.211 which I know is off by quite a bit and my 60 ft times were a half a second slower than my 60 fts at the track.

 

wow... a 402 turned lower hp numbers than 221?? ya, something is fishy there, idk what tho.

 

 

What sucks about the entire deal is that Mustang Dyno had a guy come down calibrate it and even run the program while we ran and all he said was "well I guess your #s are just that low, don't cry about it"

 

There was also a guy in a yellow single cab with a 4.8 that has intake, exhaust, shorty headers, Granatelli MAF sensor, and Hypertech tune and he put down under 200 hp and tq and it said he ran like a 17.2 or 17.3 in the 1/4.

 

I think the 402 put out like 190ish hp and like over 400 ft lbs.....?

 

I would defenetly think that something is wrong there that is lower than what most stock 4.8's are layin down. I say go get a second opinion