I have a question for those of you with a lot of dyno experience. I dyno'd my car today after adding my cams last night. In february, it was about 50 degrees outside and i was hitting the numbers in my sig, with the mods in my sig actually because i havent added the cams. I dyno'd today, the dyno weather center said it was 100 degrees in the building. I only had 1 pull over 300 and the rest were mid 290's or so.

Do you guys think that a difference in temperatures that much will hold back that much HP ? Or do you guys think that maybe there is something wrong with the dyno and it just isnt reading as well as it was in Feb ? Personally i think the latter because everyone that has been on that thing is running low #'s. I realize a dyno is just a tool to gauge modifications and a great way to tune with real time results... i just dont think weather alone could cause that much of a difference. Especially since the car feels a whole hell of a lot stronger after the cam install.

 

Weather changes are hell on a turbo charged car. A 50 degree difference is quite significant, not to mention humidity. The air is just so much thicker. Plus unless you are doing a lot to keep the temps cool under the hood, the car isn't going to like a lot of timing on just pump gas.

 

i can see that... we had the fan blowing directly on the car as usual.... the only time i hit over 300 is when we let it sit for 10 min... watered down the FMIC and piping and radiator. I just cant see losing that much HP from weather when the car on the road feels 10 times stronger

 

did you tune the car after you installed the cams? If not your hp numbers wont be what they should be.

 

What kind of Dyno today?

The Mustang dyno has a place to enter the Temp and humidity which if not entered correctly can change you readings.

 

the mustang is configured to adjust weather correction automatically. I do have a base flash for the cams that i got from another member who is running the same setup. I realize cars are different and arent going to react the same way to things, but i dont think i should have lost power, especially not that much