Is the dotted line the stock tune with stock parts? If so, it looks like a stock '10 GSR is doing considerably better than a stock '08.

No, I believe that is the base line of the car with all the parts before it was tuned.

i have similar mods and i'm making 350 on hbspeed's dyno...does the mustang dyno read lower?

Dotted is stock tune with all the bolt ons.

- Bryan

I've been on three dyno types and from highest to lowest: Dynojet, Mustang, Dyno Dynamics.

hbspeed uses dyno-mite ... don't recall which one it's closest to. but either case, i don't see how it can account for a 50whp difference...

The range on my car for the three dynos is over 40whp. Every single dyno reads differently so a 15%+ spread is certainly possible.

'

John and I talk all the time and yes his dyno does read differently then ours. Remember a dyno is a tool. One of the biggest reasons I try to always show before/after when I post dyno sheets.



- bryan