Custom(Butt)-Dynojet Discussion.

novice_warrior · Apr 1, 2004

Today I spoke with one of the reps from dynojet about the maps they provide from their CD-Rom. I told that guy that I wasn't happy with the mileage and was asking about the buttons on the PC3 Itself. I am not familiar unlike some of you are with the pc3 but I wasn't able to get over to jp's before I left daytona..... anyhow... the buttons are solely representative of the RPM's and seperate each other by 2000 rpms per button.... (0-2000, 2000-4000, 4000-6000)... well I and alot of other guys with the samson exhaust haven't been able to find many maps that are custom so this is my solution to that. Before I took the beast into for the recall I was getting probably 77 - 85 miles before the light would come on. Now I am managing about 110.. 113 best. predominately highway miles at around 70 / 2500-2700 rpms. Kinda funny dont ya think? anyhow point is. I spoke with the rep and he said that most of their maps done "not by magic" as their quote says..... are predominately richer. I will be posting in the maps to have section the samson drag pipe maps. All with stock intake mind you. You can use these maps to adjust for your own bike unless you realllllllllly want to wait and pay for the custom map on a dyno etc etc etc..... I want the dyno map but I only have the pipes and thats it. I am not paying out good money just for one lil mod..... (never say never but well see LOL). I also spoke with one of the service techs and he said that if you get some new plugs, install them and make a 50 MPH run continuous rolling that you can get a pretty good reading of the plugs that way. After you reach the 50 MPH mark, cut the engine off and roll to a stop. Take and pull the plugs and you will be able to tell where you may be leaner or richer by the plugs. Brainiacs chime in if im wrong but the inside portion of the plug is your midrange rpms, the tip is your high and the outter portion is your low rpms.
I will call and ask again tomorrow to make sure im posting true information but for a guy like me with lil to no engine mods and wanting the most out of the bike, I think you will probably get no closer to a true custom map than this without dynoing or sniffing at the dealership. Soon as the suns out and I feel like actually doing this I will go and get some new plugs and relocate my computer for the mapping... soon as I can upload my map from my bike I will post that as well... Hope this helps anyone![/emoticons/emotion-2.gif]
P.s. By the way I am 270 if it matters :0)

Kajo · Apr 1, 2004

I know your principles are sound with a carb'ed bike but I am not quite sure how fuel injection factors into that. On most carbs I believe you have three sections or jets... idle, main, and then higher up in the RPM range. You can get a good test of mixture if you roll to 50 and then CUT the engine using the kill switch, the trick is you don't want to let the engine to deaccelerate. Also, if fuel injection and carbs are the same in this matter you would need to perform the test three times for the three ranges. Anyway, good luck with it. I'm sure others have way more info.

Meltdown · Apr 1, 2004

what do you mean rolling to 50??? just cruise to 50 or gun it to 50???

Meatball · Apr 1, 2004

For somthing as simple as a set of pipes you should have just played with the ECU. You claim to like saving money.
I had great luck with mine. Great mileage and performance.
I finally had to break down and get the PC111 because I'm doing pistons and cams with the recall. I'm also going to have it tuned on a dyno, otherwise I really don't see the point.

RickPullins · Apr 1, 2004

Try this, if you start with a DJ map lean out the mid and low range using the buttons. If that is good but top is not right richen the top end. A certified tuner told me DJ maps are made using California gas which is different than most of the country causing their maps to be too rich in the low and mid range and usually a little lean on top.

megawatt · Apr 1, 2004

quote:Brainiacs chime in if im wrong but the inside portion of the plug is your midrange rpms, the tip is your high and the outter portion is your low rpms.

I have never heard of that before. Seems like the plug fires the same way everytime it sparks, and RPM's just tell it when.

I like the rest of your topic. It really makes adjustments easier. Instead of the three ranges for RPM's you stated (which makes since) I was thinking the three ranges (don't even ask why I thought this way) were for throttle settings low 0-33%, mid 34-67% and so on. It was easy to ride and check plugs for the low setting. But the roads are not long enough where I live to ride at 50% throttle for a long time, the Warrior kinda eats up real estate quickly at 50% of WOT.

novice_warrior · Apr 2, 2004

I like saving money but I also recognize what the PC3 allows me to be able to do..... such as add a cam... new pistons... etc... I dont have the info at this moment but I did talk with the rep today and he confirmed for me the locations of where each ranges spark comes from... Ill post later... gotta go to school now.

Custom(Butt)-Dynojet Discussion.

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