Boosted98gsx
20+ Year Contributor
- 2,100
- 22
- Oct 31, 2002
-
Houston,
Texas
I'll swap to sd once i'm more comfortable with tweaking v3. I ran v2 on a mostly stock car, so I dont feel 100% confident in my ability to make small adjustments to the tune on it yet. With so much of an investment into the setup I want to make sure that I know what i'm doing.
It's far better to START in SD with the new engine. As long as major components stay the same, your VE will not change, and your maps will self adjust based on boost (since SD graphs are 3D VE x RPM x Load tables).
The GM MAF was never meant to be subject to anything over an atmospheric pressure across it, so running it in a system that sees more than 14.7 PSI, is going to cause it to become inaccurate. Hence the "GM Maf" calibration necessary.
If you're going to spend so much on an engine / turbo, I PRAY you're going to have a skilled dyno tuner run it through the maps and dial it in, RIGHT?