Honda CBR 1000RR Forums banner

Bike running lean with PCIII

6032 Views 22 Replies 12 Participants Last post by  Darth H.
I'm using Resus' map on my bike.

I had it on the dyno last weekend and found out that the bike's running lean.

Is there another map i could use which makes it run better before i get a custom map next month?

Thanks in advance.

Attachments

See less See more
1 - 20 of 23 Posts
Just put a blank map on it and wait till you get your own. This way nothing can get messed up!
What kind of gas are you running? From the looks of your chart your bike cant be running that lean or you would be losing power and your not your actually making a lot what are your mods? Don't buy too much into those reading either because they are all over the place Ive seen in the tail pipe widebands be off by as much as a point and a half.
when i put my full leo on i didnt even have a PCIII on my bike and it ran perfect not to lean and not to rich just keep it on the tow with stock format
What kind of gas are you running? From the looks of your chart your bike cant be running that lean or you would be losing power and your not your actually making a lot what are your mods? Don't buy too much into those reading either because they are all over the place Ive seen in the tail pipe widebands be off by as much as a point and a half.
Thanks Demon,

I'm running pump gas (95). The butt dyno tells me it can run better. It also has a bit of an on/off response at low revs.

I don't have a lot of mods, it only has a PCIII USB, DNA filters and tit Arrow slip on (racing line). I also did the flapper mod.

Any suggestions?

Fred
Just put a blank map on it and wait till you get your own. This way nothing can get messed up!
maby im wrong but hear me out.

if you put aftermarket filters, and a decent pipe on a bike with a zero map, your not compensating for additional fuel the bike will need. granted the oem bike runs a little rich to begin wiht from the factory. now with the added filters (more air in) and the pipe (more air out), how would using a zero map not cause a lean condition like a wrong map would? your not adding the fuel required. id rather have a map that runs rich, than a zero map with mods. granted you may get some cylinder wash, but its better than leaning out the mototr and having it go boom.

now i might be wrong in my assumption, thats the way i look at it.

do a search for my map (demonRR). give that a try. if that doesnt work, send me your email, i have 3 or 4 maps that might work.

but when it comes down to it, get your map custom made like the rest of us. your bike will love you more for it, and may even give you a "happy ending" lol
See less See more
maby im wrong but hear me out.

if you put aftermarket filters, and a decent pipe on a bike with a zero map, your not compensating for additional fuel the bike will need. granted the oem bike runs a little rich to begin wiht from the factory. now with the added filters (more air in) and the pipe (more air out), how would using a zero map not cause a lean condition like a wrong map would? your not adding the fuel required. id rather have a map that runs rich, than a zero map with mods. granted you may get some cylinder wash, but its better than leaning out the mototr and having it go boom.

now i might be wrong in my assumption, thats the way i look at it.

do a search for my map (demonRR). give that a try. if that doesnt work, send me your email, i have 3 or 4 maps that might work.

but when it comes down to it, get your map custom made like the rest of us. your bike will love you more for it, and may even give you a "happy ending" lol
Good point! Then I suggest parking it for a month. :th_SmlyROFL:
Holy cow. Demon RR is right you might be getting really bad mapping if you go back to stock and you will more than likely getting detonation b/c of running really lean with that slip on/filter.

First time I've seen a map in KM/h instead of RPMs.:th_SmlyROFL: Is this all under full throttle condition and no ignition timing touched with? I'm assuming this because you have no mention of the ignition module in your mods. Also does your tuner do variable loads? Such as 100%, 75% 50% throttle conditions?

Also are the dips when you shifted? Otherwise if it was one gear pull I would say you need to stay off the bike NOW. My suggestion unless you know how to adjust the PC3 is get someone with a similar map to your mods and upload it for now. Or go to the PC3 and try to dig something up that is close.
See less See more
I really doubt it could be running that lean, i just had mine dynoed with resus's map and i have a full system. It was rich from 7-9k and pretty good everywhere else. Sorry to thread jack, but i have a question. I had my bike dynoed with the the powercommander map and it read a 13:2:1 pretty much the whole way accross from 7 grand up, but still had some little dips in tq that could be tuned out,but overall made decent power.

Then I loaded resus's map and his a/f on my bike is all over the place between 14:1 to 12:1, but makes the same top end power, better throttle response and probably has the smoothest hp line i've ever seen. Even the guys at the shop were impressed by how smooth the hp and tq was, even though they said my a/f is all over the place. Another thing i noticed is that resus's map has way more negatives values vs the power commander map pretty much everywhere, but i still don't understand why it would read rich in parts where the powercommander was spot on a/f wise? Oh yea and the butt dyno say's resus's map feels way more powerfull and responsive on the street pretty much everywhere. So that leads me to my next question, when tuning your bike should you tune to your a/f ratio to what makes the smoothest and best power, which means it could be lean or rich in certain spots, or would tuning to a specific a/f be better? and I only ask this because guys who shoot for a specific a/f usually will have spots in the graph where it could be smoothed out.
See less See more
Holy cow. Demon RR is right you might be getting really bad mapping if you go back to stock and you will more than likely getting detonation b/c of running really lean with that slip on/filter.

First time I've seen a map in KM/h instead of RPMs.:th_SmlyROFL: Is this all under full throttle condition and no ignition timing touched with? I'm assuming this because you have no mention of the ignition module in your mods. Also does your tuner do variable loads? Such as 100%, 75% 50% throttle conditions?

Also are the dips when you shifted? Otherwise if it was one gear pull I would say you need to stay off the bike NOW. My suggestion unless you know how to adjust the PC3 is get someone with a similar map to your mods and upload it for now. Or go to the PC3 and try to dig something up that is close.
The reason it shows KM/h instead of RPM is because it was on a dealers' day where you could have it on the dyno just for the love of it.
Indeed the dips were at shifting. I have no idea about the loads he used for it.

No, i don't have an ignition module.

The good part is that the guy who dynoed it has an '05 Repsol blade so i assume he won't mess up my bike if i let him make a custom map for me. :laugh:

I guess best i can do for now is see if i can find DemonRR's map and give it a go.

Thanks for the help guys.
He's got a UK Spec bike with a different ECU than our US Spec bikes that Resus' map was made for.
Would that make that much of a difference?
Well it certainly can, but then again the sniffer they used on the dyno could be out of calibration or old etc too...
maby im wrong but hear me out.

[...]

do a search for my map (demonRR). give that a try. if that doesnt work, send me your email, i have 3 or 4 maps that might work.

but when it comes down to it, get your map custom made like the rest of us. your bike will love you more for it, and may even give you a "happy ending" lol
I found your map and did a quick comparison with the software. The graph looks "smoother" than Resus' map.

I'll give it a go.

Thanks,

Fred
Well it certainly can, but then again the sniffer they used on the dyno could be out of calibration or old etc too...
I'll upload Demon's map and see what happens.
Not likely it is that lean and making that kind of horsepower. I would be a bit suspect of that data. Also I have no idea why they would do an All Gear on an injected bike.
before i got my tune done, i used Jims map (repsolguy tweak2). Jim and I basically had the same bike and mods: 04 1000rr, arata s/o, bmc race, gutted air intake, velocity stacks. i tried his map and i ran dangerously!!!!!! lean. i could not ride or even run the bike for more than 2 mins as the temp gauge got hot really and i mean really quick. indicating to me a lean condition in the cylinders. so off to the tuner i went and got a custom map made.

this si the chance you take modding your bike and running others maps. each bike will respond differently and needs each own map to run in its optimum performance.
[...]

Also I have no idea why they would do an All Gear on an injected bike.
I have no idea what you mean by this, could you please clarify?

Thanks,

Fred
before i got my tune done, i used Jims map (repsolguy tweak2). Jim and I basically had the same bike and mods: 04 1000rr, arata s/o, bmc race, gutted air intake, velocity stacks. i tried his map and i ran dangerously!!!!!! lean. i could not ride or even run the bike for more than 2 mins as the temp gauge got hot really and i mean really quick. indicating to me a lean condition in the cylinders. so off to the tuner i went and got a custom map made.

this si the chance you take modding your bike and running others maps. each bike will respond differently and needs each own map to run in its optimum performance.
I get your message: get your own map!

I'll watch the temp gauge but so far it wasn't running hotter than before.
do the pair system mod also will keep a/f ratio from jumping lean so much plus all bikes are different hook up to a laptop and block up rpm range hit page up 5x should help
1 - 20 of 23 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top