Anyone that has had their car dynoed stock, please let me know what it put down at the rear wheels. I am trying to figure out the range from the factory. I am particularly interested in high number (265+) and low numbers (250-), but I welcome responses from all stock dynos.

Thanks.

 

Tim, go over to kc-mustangs.com and ask them. Christi, Mike or Roger from Supertunes posts and I know they have the answer.
Michael
PS. I drove Rogers Convertible GT that is supercharged last Friday. WOW.

 

Stock, my car put down 255hp/279tq on a Mustang dyno. My car is an automatic, BTW.

 

245, Manual, on a Mustang Dynometer, bone stock

 

Well... down here in Guadalajara Jalisco Mexico... I went to the dyno... dont know the brand of it... and I got 296 rwhp and 350 lbs/torque... hope I helped... bye guys!

 

wait...what? 296 RWHP? STOCK?





ehhh.....

 

man you guys are putting out low numbers, mine was 263.87 rwHPand that was back when it was new and stock. this 296HP are you sure it wasnt meassured in PS? Still seems a bit high though for a stock motor.

 

Mine was 270rwhp on K&N's dyno which is a dynojet I think.

 

I wonder why the 7 HP difference between yours and mine Dallas, mine was dynoed on K&Ns dynojet too.

 

269.1 first pull, 264.3 second pull on Mustang dyno. 279.1 after Predator Tune 91 octane. No CAI, no HC removal.

 

Hey rrobello,
When did you have yours done? They did mine in Dec., just maybe temp. could have been part of the factor.

 

once early jan and once again late feb same results

 

stock 254.73 /286.79 auto gt

 

Dyno pulls done at JBA Racing, San Diego

STOCK (6/27/05):

257 rwhp @ 5690 rpm
274 ft/lb tq @ 4246 rpm
Temp was 60F. A/F ratio stayed between 11.4 - 11.8 from 4000-5700rpm.

C&L CAI/Predator (7/6/05):

270 rwhp @ 5634 rpm
319 ft/lb tq @ 3894 rpm
Temp was 64F. A/F ratio stayed between 12.4 - 12.9 from 4100-5900rpm.

There were also a couple interesting items of note.

First, they made both of these pulls in 3rd gear (not 4th, which is a 1:1 drive ratio). It seems, they couldn't keep the auto tranny from downshifting when they hit the throttle in 4th. However, during a full dyno tune session, they have a way to electronically "lock" the tranny in 4th gear.

I also asked about the correction factor for the Dyno Dynamics system they use. They said that it uses a correction system that will result in lower numbers than a DynoJet. In fact, JBA has tested both systems. Using a test car, they made a pull on their own dyno and then immediately took it to another shop who uses a dynojet for a comparison pull. The pulls were made about 30 minutes apart, and the dynojet reported about 20 rwhp more than their own dyno. So, comparing numbers between two types of dynos is really an apples and oranges situation. The main thing is repeatability on any given dyno. For determining performance gains due to mods or tuning, doing them on the same dyno is more important than the actual numbers.

 

Had mine done last week. dynojet dyno
three runs, bone stock, manual tranny

1st 272.0hp 288.3tq
2nd 274.4hp 290.0tq
3rd 274.8hp 288.9tq

 

Mine stock was 259 RWHP 259.7 TQ on Dynojet Auto tranny.

 

What do you consider low numbers. My car had 500 miles on it when I dynoed it in stock trim. What type of dyno were you on? ynoJet usually produces a higher number than a Mustang dyno.

From what I can see, power levels are pretty consistent in stock form between the manual and stick classes.