Quote:
Originally Posted by Matt TuneTime
Not to argue here but the commanded PE vs accual is off you'll find Even if you comand 12.8 on a bone stock car you'll get 13.3-5 you have to take out of the maf up top to get commanded
No it was the cylinder heads the cars where 40-50hp off and ford replaced the heads and Cal to get the car to the rated hp of 305hp ... IMO untill I get a few more L99 car's on they dyno and see them at the track I'll wait to comment on the L99 stock tune ...
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I agree the Commanded PE is not always 100% accurate to the MATH and that MAF fluctuations can make it vary, but if you open an L99 file and calculate out the VE tables you will see it follows his air/fuel readings almost to a T. I could get into a lot more of the in depth adders and fueling tables, but I was trying to keep it to simple math basics of tuning to explain that while the car is running very rich, it was actually programmed that way. Hopefully this info will help these guys with GM and the issues. I'm sure these guys don't feel like reading two tuners discuss all the fine print of tuning in a post where they are just trying to get their cars to run the numbers that were advertised.
On the Mustang info, here's just one link to the info on what happened with that car
http://auto.howstuffworks.com/1999-2...d-mustang4.htm
I was just throwing out an example how a manufacturer fixed a performance car due to customer complaints and not looking for an argument on what happend 10 years ago on a Ford of all things....