theDreamer's Z

RCZ

sounds like you know boost is going to drop, but you don't want to believe it? I would think that boost WILL drop even more if you free up the exhaust more. If Sam was right and its a VVEL + free exhaust problem then you should lose power with your exhaust.

BTW, "accurate" is not the right qualifier to use for a dynojet. The Mustang is actually more consistent and yields numbers that are closer to actual power output than the dynojet does. So call them "more comparable" not more accurate.

theDreamer

In terms of accurate, this will be though.
The dyno we originally use has some "problems," as I do not know what exactly I will just say my original dyno full bolt on NA put me well above 320whp on a mustang dyno. While a few weeks earlier on another mustang dyno in town I was putting down 290whp, which is where I should be. I am saying it will be more accurate in the sense of giving a real reading for comparison for Sam to use.

On the the point of more flowing exhaust, boost might go down, it all comes down to who much freer it is compared to the Berk. Also, more flow and boost loss does not equate to power loss as we can see with this build already.

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RCZ

290 is more like it. Yeah the Dynojet you should be more comparable to Sam's numbers...also remember that GTM uses STD numbers. I think you're going to be a few short of advertised judging by your mustang number.

How exactly do you know this: "more flow and boost loss does not equate to power loss as we can see with this build already." How do you know that if you didnt have the headers you wouldn't have made more power? After all, Shumby made a lot more power without the headers than with them. For all you know, you are making less power than you could be.