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so would the pcIII or the V do me any good without an exhaust, or will it just be a waste. i have been thinking about changing my exhaust but i don't really want it to be any louder than stock. thanks, and thanks for all your hard work Marty!!
 
Discussion starter · #22 ·
i cant speak to the rzr s, but the regular rzr is mapped very rich on the bottom, with a powercommander you could lean it out a little..
but the powercommander is expensive.. so you have to ask yourself.. is it worth it? i dont know..

iv'e done so much to my motor that without a way to add fuel to it, it'd lean out and screw up.. i have to have a controller,

the powercommander was my first engine mod though, and i've always liked it..
 
i cant speak to the rzr s, but the regular rzr is mapped very rich on the bottom, with a powercommander you could lean it out a little..
but the powercommander is expensive.. so you have to ask yourself.. is it worth it? i dont know..

iv'e done so much to my motor that without a way to add fuel to it, it'd lean out and screw up.. i have to have a controller,

the powercommander was my first engine mod though, and i've always liked it..
Martymoe,

Can you give some feedback about the Dynateck CDI that they are discussing in this thread: http://www.rzrforums.net/engine-drivetrain/10415-dynatech-cdi-testing-4.html#post97054 .
It looks like there are a bunch of us confused about the fule controller and the CDI (ignition?) box.
 
Discussion starter · #24 ·
dynatek is a sister company to dynojet (powercommander) it does surprise me that they are competing with themselves.. i was talking to dynatek asking for ignition at the same time i was aksing dynojet for one.. dynatek said they were coming out with an ignition module while dynojet said they were not.. low and behold, dynojet came through first (powercommander ignition module)
dynatek also makes fuel controllers but they are not as customizable as the powercommanders. they are sometimes considered more user freindly because they are not as robust (= confusing) as the powercommander. in a nutshell, they are more simple.

from reading that thread, it looks like mpi is getting involved in the dynatek product, and that's fine..
dynatek's ignition module is basically the same as the powercommander module in that it lets you change your rev limit and build ignition curves.
i'm not sure, but possibly it replaces the entire ignition subsystem for the rzr (again i dont know) where the powercommander unit is a stacker type device.
the only advantages i cand see from the dynatek over the powercommander setup with respect to ignition is that they probably are using a different (hotter) coil and it is cheaper.

from a fueling perspective, the powercommander is hard to beat unless you have the facilities to completely rewrite your ecu (which would negate both of these products)

dynatek has been doing ignition for a long time.. dynojet is relatively new to this game.. but as i said before they are sister companies and they will share technology.

in the other thread, you said something about not wanting to add all of this stuff and chase your tail.. i believe trying to combine both fuel controllers and both ignition controllers would cause several signaling problems (polaris cps signal is really tough to pickup as it is) and would generate a whole bucket full of confusion..

if you already have the pciii setup, i would stay with that.. if you dont and you want to try the dynatek stuff, have at it.. dynatek is a great company and they have some great products..

for me, i'm staying with the powercommander until i start building my own ecu. at that point i will take what i have learned from the powercommander stuff and build on it.

if dynatek offers a new coil that makes a hotter spark, i might consider adding that on later but i'm not going to screw with my setup much because it works so very well.

hows that.. did that answer your questions?

oh btw.. if you have a pcIII ignition module, bump your timing to +10 from 20% to 100% throttle from 1500 rpms up through about 4000 rpms and you will see that crazy throttle response they are talking about. you will also see that midrange power gain.
 
Excellent answer! So if I read correctly, you say that you can raise the RPM Limit with the pciii. How do you go about that? I heard that up to 7k is safe on these motors and would be interested in doing that. In doing so I will probably waste the dyno tune I had done because it was tuned up to 6k, but I should be able to rectify that by using your program.
You had mentioned before that there are two ways to record the o2 data. Which do you recommend / is easiest for us less experienced with tuning the powercommander and who carrys it.
Thanks for the great feedback.
 
Discussion starter · #26 ·
to raise the revlimit, you need the powercommander ignition module. once you have it, you will contact dynojet and request a rev extend. they do it this way because they need you to sign a waiver (if you bump your limit and blow your motor they dont want to be responsible)

there are more than two ways to do it.. the two ways that i have and i believe are the simplest is. a wideband commander with a log switch wired in.. (you can also use a laptop for logging) the other way (and the simple one) is kinda pricey, but it works really well. it's a wideband commander, powercommander, lcd 100 and a cable dynojet sells to link the powercommander and the wideband commander to the lcd 100. the lcd 100 is your logging device.

you can also generate logs with an lcd and a pressure input from the powercommander hub if you have a non dynojet type of wideband.

there are several vendors out there, dynojet sells everything you need, but you can dig on the net and usually save a little cash on all of the pieces.

a note on the rev limiter. i have my rev limiter set at 7500 but at 7250 i throw a bunch of fuel at it and dump the timing.. this effectively makes a 7250 rpm soft rev limiter..
 
Wow..great info

Thanks
 
I have also created my own PCIIIUSB map calculation tool.

It is a extended EXCEL table and quite independent from internet
and by my opinion more easier to use (especially if you are
using laptop near your bike or machine).

Take a look on that table on http://www.linde-mh.rs/MAP_calculation.zip,
and please give me your opinion at branko.v@linde-mh.rs

NOTE: The table calculation has some open issues regarding looking
through the log's, like deceleration and different TP in one imported log,
but if You take care that your log's are cleaned from deceleration entry's
and TP positions entry'y that do not belong there, it should work perfect.
On the other hand it has a big advantage that it uses AFR predefined
settings for each cell, and also possibility to use different log's for each cell
(e.g. TP 10-20 for measurements when the vehicle was driven in 6th gear,
and the rest in 3rd gear).

banelinde
 

Attachments

Marty, as you know, I race in the mud. As far as the engine goes, I have done nothing at all to it. I just recently installed a Dirty Dog clutch, and I have an FMF slip on that I will be installing in the next few days. I am always in Low, and turning between 5800 to 6000 RPM. As it is, I am hanging with turbos and nitrous. I guess I am lucky. My motto has always been: The more you add, the more to break.

To tell the truth, I am old school, and know very little about EFI. With all this said, would any of this be beneficial to a mud racer? I can see it out on the dunes, or the occasional drag for bragging rights. I can see some benefits to controlling the A/F, and the timing, but would it be money well spent in my application?
 
Marty removed his tuning wizard because someone didn't read his directions, installed a map and it burnt their motor up. I have tried to get Marty to put it back on his site and he said maybe later. This program worked great if you read followed Marty's directions. The one guy also wants Marty to pay for his damaged to his motor.
 
Marty removed his tuning wizard because someone didn't read his directions, installed a map and it burnt their motor up. I have tried to get Marty to put it back on his site and he said maybe later. This program worked great if you read followed Marty's directions. The one guy also wants Marty to pay for his damaged to his motor.
Let me get this straight. Some guy use a free software tool incorrectly and wrecked his engine and has the nerve to ask the programmer to pay for it? Jesus, ive heard of people with a lot of nerve but this guy takes the cake! What an asshole.
 
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