Re: All your Bazzaz Questions
The pcV and the bazzaz each offer different pro's and con's.
Yes, the pcV can control 8 injectors with an add on. Bazzaz didn't do any auto tuning design as they want the end user to approve the changes that way they can see if there are any anomalies such as a failing sensor or a wide variety of other things that can cause issues in the tuning "system". the pcV has some parameters you can set so that the autotuning won't apply anything like say 20% or more compared to what you already have. this keeps it from going completely haywire if a sensor fails, but to a certain degree it will still mess your map up until you catch it, etc. Different theories there and each person can make up their own mind on what they want. Each allows you to switch between two maps with a handlebar switch. The auto tune modules are not out yet so there isn't any other "hard data" to really go by yet.
Another main difference between the two is the fact that it controls 4 injectors right out of the box with the option to control 8 with the add on and the auto tuning. Where the bazzaz controls 8 right out of the box, but you have to approve the changes before it alters your hard map. The sensors don't fail often, but they do fail. personally I wouldn't run around on auto tune all the time for that very reason. the best way would be to let the auto tune build your map then save it and get out of auto tune so you don't have to worry about a failing sensor. You can turn the auto tune on anytime you want to make sure the map is still good, new mods, etc. The only difference is with the bazzaz you have to apply the changes that it recommends. I keep the logging portion of the bazzaz on all the time on our bike. I basically download it once a month to see if anything new is happening in terms of temp changes, etc. If i don't see any real changes i normally just apply the suggestions, clear the log and move on. I like knowing that it's not changing the hard map just in case something goes bad with the sensor. Personally I want to know when the hard map is being changed and know for a fact that it's not being done based on an error somewhere. I could ride around for 6 months and know that my good map is still there.
Just my personal opinion though so if I run a pcv to play with it i'll use the auto tune to build a map then get out of auto tune which then makes it very much like the bazzaz in that respect except that i have to approve the suggestions with the bazzaz which I personally like doing as I don't trust any software to keep my bike tuned perfectly all the time. Fact is that dynojets stuff fails at times, bazzaz fails at times, and sensors fail at times and if they do I want to know about it right away. if my bazzaz hard map goes out i'm going to notice it as the bike will run like ass right away.
both are great units and it just depends on what you're after personally...the biggest difference is the 8 injectors out of the box and the fact you have to hit a button to apply the changes with one unit where the other will just do it.
There are other minor differences, but these are the major ones that will affect those who read this. Those who will be affected by the minor ones, racers, etc probably won't be reading this and will already have done their research. For example the pcV can actually tune each cyl individually if you get 4 widebands and put one in each cyl, but for 99.9% of the people this isn't relevant so I only went over what will affect 99.9% of the people. most people won't get this detailed and if you do want to then I would recommend the Motec any day of the week to those people as it's the most advanced out PERIOD, but it also has a much higher learning curve and things get very complicated and that's why mostly professional race team meachics deal with it, etc. Amar bazzaz actually LOVES the Motec, but he realizes it's not for 99.9999999% of the population and nor are it's features. If you're into super high end stuff check out the Motec though. It has been around for years and sets the bar for high end electronics for bikes/cars.
If I run the pcV at any time to play with it i'll surely run it with 8 injectors as I do believe in the way the manufacturers set it that at higher rpms the uppers should be doing most of the work. On the dyno you might not notice a difference between controlling 4 or 8, but it's not argued that the farther away it lets things mix better. with air/fuel or even with adding nitrous, etc..
Last edited by gsxcorey; 01-18-2009 at 02:01 PM.