Originally Posted by
MC-14
Why does it read so much different compared to the DD. It seems like it's factoring in the atmospheric pressure along with boost pressure...........am I correct? I'm just learning, so any info would help alot. Yea, the wastegate is 6psi, so I actually drilled a hole on the wastegate bracket, and gave it a helper spring under high loads
thats not going to do much since after 12 psi (double the intended wastegate diaphragm pressure...its just a rule of thumb, dont ask me where to quote it from...its just something i learned in school and through associates in the industry) since the boost will leak past the flapper valve eventually.
i dont know the specifics, but I do know that dyno dynamics are a load-based dyno, so the numbers are going to vary from car to car. dynojet's use a predetermined load setting, almost like a "perfect world" situation where weather/climate is equal (think correction factors in the software).
blah, i hope i'm not spitting out bad info.