Tuning issues - Honda CBR1000 Forum : 1000RR.net
 
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post #1 of 10 Old 02-15-2017, 10:39 AM Thread Starter
cbr-cowboy
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Tuning issues

So last Fall I got a new exhaust and tune from a local shop, that had good reviews from people in our area. when i first started riding my bike before the tune, it had enough power that i didn't need to give it gas to let out the clutch and start moving. After the tune the bike has no power under 2k rpm's. but above that it runs like a champ. I have done the flapper mod, but that didn't seem to help much. is there something the tuner missed when he tuned my bike? he said he didn't touch the mapping that low, and im like, but you took out the exhaust that had the back pressure flap in it, something should of been changed? he is willing to look at it more and try to fix it, but i kinda get the impression he thinks it is all in my head and or, i just need to keep it above 2k rpms.

on a side note, he was very informative on other stuff and when they did my front springs and the seals started leaking even though they didn't touch the seals, he replaced the seals at no cost to me.

I have read quite a few of the articles here, but i'm not sure what to search for for this issue. if there is a tread on this, please point it out and i will read it.


Thanks,

on my steal horse i ride...
2013 CBR1000RR, 11769 Miles
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post #2 of 10 Old 02-15-2017, 10:58 AM
capt.america
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Did he reflash your ECU or do you have a fuel module?


If you can't run with the big dogs,
stay on the f@ckin' porch.
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post #3 of 10 Old 02-15-2017, 12:27 PM
max2010
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Quote:
Originally Posted by cbr-cowboy View Post
. After the tune the bike has no power under 2k rpm's. but above that it runs like a champ. I have done the flapper mod, but that didn't seem to help much. is there something the tuner missed when he tuned my bike? he said he didn't touch the mapping that low, and im like, but you took out the exhaust that had the back pressure flap in it, something should of been changed? he is willing to look at it more and try to fix it, but i kinda get the impression he thinks it is all in my head and or, i just need to keep it above 2k rpms.
,
Cbr1k idle at 1200 rpm and redlined at 13k rpm. Peak torque around 7000-11000 rpm.......what do you expect from high idle?.

I call it high idle because it is. When you start it in the morning, it will idles around 2500 rpm (cmiiw).

My zafm doesnt register any values below 3000 rpm. I think, that explain why he doesnt tune your bike below 3k rpm.

Nothing is perfect under the sun
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post #4 of 10 Old 02-15-2017, 01:15 PM Thread Starter
cbr-cowboy
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Quote:
Originally Posted by capt.america View Post
Did he reflash your ECU or do you have a fuel module?
its a 2013 so i just had ECU flashed, he said he has done 3 other cbr1000rr's and not seen this issue before. but also says he is never under 7k rpm's




Quote:
Originally Posted by max2010
Cbr1k idle at 1200 rpm and redlined at 13k rpm. Peak torque around 7000-11000 rpm.......what do you expect from high idle?.
Kinda expect smooth acceleration like it had before the tune, but tuned more for the exhaust and the timing fixed. If it cant be done because there is no back pressure from the exhaust, that is fine and i will learn to ride accordingly, but i just want to make sure there is nothing that can be done to fix it. before i drop it off for another week for nothing to change.

on my steal horse i ride...
2013 CBR1000RR, 11769 Miles

Last edited by cbr-cowboy; 02-15-2017 at 02:42 PM.
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post #5 of 10 Old 02-15-2017, 08:39 PM
darknessfear
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stock exhaust?
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post #6 of 10 Old 02-16-2017, 12:16 PM Thread Starter
cbr-cowboy
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no, the new exhaust was a hindel exhaust

on my steal horse i ride...
2013 CBR1000RR, 11769 Miles
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post #7 of 10 Old 02-17-2017, 12:37 PM
Jedclampet
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Hindle

Did you add a full pipe or a slip on. Typically slipons hurt down low and the stk slipon with the flapper intack will help that area. Particularly when doing
low rpm crest wheelies off a rise. Just saying the stk pipe is very well thought out andmost full systems only add above 10k rpm. I added sebmoto ram
air tubes and Lee's racing velocity stacks with a full Ladybird Ti pipe when mapped ran very clean and strong top to bottom.

2011 CBR 1000 RR
Ohlins TTx36MK2, 30mm Cart, Lee's link n fork caps
Brembo RCS master n HP calipers, HM Quickshifter
Powercomander V, Attack Rear sets, Ladybird Ti Exhaust, Lee's velocity stacks, Ten Kate intakes.
Thanks to at Brad Superbike Supply, Ron at Washington Cycle Works and Mike at Backyard Cycle
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post #8 of 10 Old 02-17-2017, 12:52 PM
max2010
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Agree^

OP was asking about 2000rpm torque though.
Like you said, once oem exhaust with servo is out, there is no cure for lack of power/torque down low like that.

He may try to sync the throttle bodies, it may help a little, but who is riding 13k redline rocket at 2000 rpm anyway? I dont. Actually, I avoid riding below 4000 rpm at all cost pretty much
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post #9 of 10 Old 02-17-2017, 04:28 PM Thread Starter
cbr-cowboy
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Quote:
Originally Posted by max2010 View Post
but who is riding 13k redline rocket at 2000 rpm anyway? I dont. Actually, I avoid riding below 4000 rpm at all cost pretty much
Well pulling onto my street is a blind right hand turn with a driveway to apt's 20 feet in so i don't usually red line it around that corner, as well as pulling out of shopping centers into semi rush hour traffic, i dont like hard throttle going of paint at a lean. but yeah, 99.98% of the time i am not below 4-5k rpm's, I will just adjust my riding style then, just wanted to make sure there wasn't any timing or fuel mixture issues they missed.

Thanks,

on my steal horse i ride...
2013 CBR1000RR, 11769 Miles
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post #10 of 10 Old 02-17-2017, 06:53 PM
max2010
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Gotcha

As long as you know that im not trying to bash you

Last edited by max2010; 02-19-2017 at 12:59 AM.
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