got the boss its first mods and dyno session, Sept 5.0 mag has story on 0001 pg 38
07-10-2011, 01:24 PM
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got the boss its first mods and dyno session, Sept 5.0 mag has story on 0001 pg 38
Check out page 38 of sept 5.0 mag, they ran a story on the other boss i had. they contacted me and wanted a few other details about the sale but the buyer prefers to not have all the details in print. i also went to murillo motorsports in san antonio over the weekend. spent two days hanging out with the gang there while they did some work on my boss. The full story will be on StangTV soonish.
Anyway, i had a steeda CAI, dynatech headers, a catted X and flowmaster hush power cat backs installed. murillo uses a mustang dyno in their new location and had a dynojet in their old location. Interestingly they have dynoed cars with the exact same tune on both dynos in similar weather and have a very clear idea of the difference between the two dynos. whp is 20-30 lower on the mustang dyno than the dynojet.
anyhow, the quick details are 370whp box stock and 421whp with a "safe" tune leaving all knock sensors on. interestingly the sct software would not allow mike to set the fuel trims above 6850rpm. obviously that is a big issue on a boss spinning to 7500 where as on a normal gt maxing out at 6850 isn't that big of a deal. the long and short is that once the car passed 6850 the AFR went way rich and cost power. it would make more once the software is updated to handle what the boss will do. in a nutshell the exact numbers are 421.4 at 6621 (which is right at where the tune software maxed out and went rich, the engine spins to 7500 and was making power until it went rich). car made 363.8 wtq at 5297.
Anyway, i had a steeda CAI, dynatech headers, a catted X and flowmaster hush power cat backs installed. murillo uses a mustang dyno in their new location and had a dynojet in their old location. Interestingly they have dynoed cars with the exact same tune on both dynos in similar weather and have a very clear idea of the difference between the two dynos. whp is 20-30 lower on the mustang dyno than the dynojet.
anyhow, the quick details are 370whp box stock and 421whp with a "safe" tune leaving all knock sensors on. interestingly the sct software would not allow mike to set the fuel trims above 6850rpm. obviously that is a big issue on a boss spinning to 7500 where as on a normal gt maxing out at 6850 isn't that big of a deal. the long and short is that once the car passed 6850 the AFR went way rich and cost power. it would make more once the software is updated to handle what the boss will do. in a nutshell the exact numbers are 421.4 at 6621 (which is right at where the tune software maxed out and went rich, the engine spins to 7500 and was making power until it went rich). car made 363.8 wtq at 5297.
07-10-2011, 02:03 PM
#3
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Join Date: Jun 2009
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ok so the numbers were from memory and looking at the sheets now, that 370 came right at 6000, the pull he plotted on the sheet wasn't all the way to redline. mike tunes his cars at several rpm ranges before going the full monty just to be sure its not going to go ***** up all the sudden. so the was stock reading was at about 5860rpm, the car had more in it for sure.
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