# Dyno **URL:** \ **Category:** Shift518 Automotive\ **Created:** [April 27, 2011, 8:23am UTC](https://forums.speedlife.net/t/dyno/258106 "2011-04-27T08:23:12Z")\ **Posts on this page:** 1\ **Showing post:** 18
**Author:** ![usmc2801](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/usmc2801/32/6387_2.png) [@usmc2801](https://forums.speedlife.net/u/usmc2801)\ **Post date:** [April 28, 2011, 6:32am UTC](https://forums.speedlife.net/t/dyno/258106/18 "2011-04-28T06:32:11Z")
> [@turboSHO caught on fire](https://forums.speedlife.net/t/turbosho-caught-on-fire/41716/5): > > if its a newer PC3 box, they it looks like you can adjust fueling only. +/- %100 over the full range, but they dont say what the increments are. Like I said the boxes I saw in use covered the “full range” but it was in chunks of 3 layers, not like 100 rpm pieces or what ever. Irc it also had 8 throttle position columns to adjust for also. > > Also in the features list it says you can trim each cylinder too. thats cool, but unless you can sniff each header pipe, thats worthless for the most part. (unless you looked at plugs or something but thats like pissing in the dark really for an EFI application) He owns the same bike as I do, so I would hope he is using a PC V and not the III and it makes a world of difference as the V is much more advanced with fine tuning then the III is. And yes they are fuel management but when you are putting exhausts and filters on a bike you want it to run at its full potential and not to rich or too lean which can happen easily on a bike, its not the same as putting an exhaust and air filter on a car. --- _[View the full topic](https://forums.speedlife.net/t/dyno/258106)._