Straight answer on HP gains.

[sunwolf]

I have been looking around for awhile to see what the actual power and torque gains are from LMS mycal tunes. I have seen estimates including 4dr's and the showroom guys at LMS of 30-100 hp. I was wondering on a SHO what the gains are from 93 octane tune alone, and 93 octane with 160 tstat and 3 bar. Anyone have any data for this? At the wheels, crank, or both? I have been running just the 93 tune for awhile and the car keeps up fairly well with my dad's M6 so I'm expecting towards the upper end of that range.

 

[4DRHTRD]

SO MANY VARIABLES.....
You can't quantify it other than a range for any tune, sorry.

 

[Josephm]

variables being IAT's, fuel quality, How dirty your valves are;

Every car acts different. A member on here ran a 12.66 with a livernois 3 bar tune, but other members have ran 12.9-13.2's and there is a couple running the same tune (same octane, same tune)

 

[FoMoCoSHO]

An once the car is tuned, you will still see power variables, sometimes substantial, based on environmental factors. Take a peek at the results from my trip to the strip last night.

http://www.ecoboostperformanceforum.com/index.php/topic,2662.msg56809/topicseen.html#new

 

[ZSHO]

You really have to put the car on the DYNO for proven results,gains,if you want a straight answer considering all the variables mentioned and taken into prospective,a V8,3-BAR 160stat,LMS tune my speculation would be between 30-40 hp from my experience.

 

[BiGMaC]

You really have to put the car on the DYNO for proven results,gains,if you want a straight answer considering all the variables mentioned and taken into prospective,a V8,3-BAR 160stat,LMS tune my speculation would be between 30-40 hp from my experience.

Lots of variables as all have said.... Downpipes alone are worth 17 whp on the dyno on my car.  So I think the tune alone is worth 50 or so whp under most conditions with a warm block.  I'm betting the combo the OP listed is worth 60- 90 whp (about 75- 100 chp). The major variables are driving style/ECM memory, fuel and ambient weather.