[Jeffingh]

Anyone put their car on the dyno and try to tune it? Some things stick and some don't? It says it accepts it but nothing changes? Only able to change some of the air flows but not the cam settings? Does the factory put a firewall in the computer so nothing changes?

 

[J.R]

View attachment 10199 View attachment 10200

Anyone put their car on the dyno and try to tune it? Some things stick and some don't? It says it accepts it but nothing changes? Only able to change some of the air flows but not the cam settings? Does the factory put a firewall in the computer so nothing changes?

If no gains are seen with the tune then the problem is the person doing the tuning does not really know how to tune or does not understand how
the newer functions like DOD, VCT or DI work

VCT alone has many settings and tables, some shown below.

Consider a C5 Corvette for the engine and auto trannie had a total of 512 K bytes flash memory total in the PCM where calibration resides
and a C7 just for the engine is around 2 meg bytes shows how much more complex tuning is and you cannot use the same tuning
methods on the LT1 then used with LSx powertrains

 

[Jeffingh]

View attachment 10199 View attachment 10200

If no gains are seen with the tune then the problem is the person doing the tuning does not really know how to tune or does not understand how
the newer functions like DOD, VCT or DI work

VCT alone has many settings and tables, some shown below.

Consider a C5 Corvette for the engine and auto trannie had a total of 512 K bytes flash memory total in the PCM where calibration resides
and a C7 just for the engine is around 2 meg bytes shows how much more complex tuning is and you cannot use the same tuning
methods on the LT1 then used with LSx powertrains

Who in SO Cal knows how to do it?

 

[tomkat]

I have a guy who knows how it works. he has tuned several with great results. he only does custom tunes in Oxnard CA. if interested pm me.

 

[tomkat]

by the way I gained 47 whp measured on a conservative Mustang dyno and over 55tq