954 riders i need your help - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

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post #1 of 7 Old 04-21-2009, 11:57 AM Thread Starter
 
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954 riders i need your help

i have a 954 with a pcIII usb, jardine slipon, K&N. i removed the airbox flapper and the htev. i have no low end power and need a good map or fuel table to wake my bike back up. im gettin to much air and not enough gas. right now my pcIII is mapped with two brothers half system with no htev and it helps a lil but still missing something.
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post #2 of 7 Old 04-21-2009, 12:05 PM
 
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Re: 954 riders i need your help

I started tweaking the map, test ride, tweak some more, test ride....etc. I used the two brothers bolt on with aftermaket/stock air filter because I still have the HTEV. I'll get it into the shop for a custom map sooner or later but in the mean time I just started tweaking in small increments so I didn't do any major damage. I saved each map that I tweaked just incase I did something really wrong. It helped a little in the <3000rpm range. You can't beat a custom map though if you can get one.

The only thing I trust on the road are the nine hundred and fifty four CC under me..........
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post #3 of 7 Old 04-21-2009, 1:29 PM Thread Starter
 
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Re: 954 riders i need your help

yea. it is hard to get a custom map without knowing some honda people. i live in south ga and it seems like 9 out of 10 bikes are gsxr's
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post #4 of 7 Old 04-21-2009, 6:09 PM
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Re: 954 riders i need your help

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Originally Posted by muddawg View Post
i have a 954 with a pcIII usb, jardine slipon, K&N. i removed the airbox flapper and the htev. i have no low end power and need a good map or fuel table to wake my bike back up. im gettin to much air and not enough gas. right now my pcIII is mapped with two brothers half system with no htev and it helps a lil but still missing something.
How did you remove the HTEV exactly?
What makes you think it's lean?
If you disable the HTEV or leave it in the 8000rpm+ position you will notice loss of midrange. You can set it to the 3000-8000rpm range to get the midrange back.
If you believe it is lean try richening the map through that area of the tach.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #5 of 7 Old 04-22-2009, 10:31 PM Thread Starter
 
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Re: 954 riders i need your help

the reason i think it is running lean is because it ran good before i removed the flapper and htev. i removed the htev from the exhaust and removed the wires from the servo motor and had a machine shop fab me a cover and gasket for the hole. same way with the flapper. i left the servo motor that way the bike would think it is working. i figured it would run lean because the extra air it is getting and the faster flow through the exhaust. just my theory
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post #6 of 7 Old 04-22-2009, 10:46 PM
 
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Re: 954 riders i need your help

try this
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post #7 of 7 Old 04-22-2009, 11:55 PM
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Re: 954 riders i need your help

Quote:
Originally Posted by muddawg View Post
the reason i think it is running lean is because it ran good before i removed the flapper and htev. i removed the htev from the exhaust and removed the wires from the servo motor and had a machine shop fab me a cover and gasket for the hole. same way with the flapper. i left the servo motor that way the bike would think it is working. i figured it would run lean because the extra air it is getting and the faster flow through the exhaust. just my theory
I have to ask why you removed the rotary valve from the housing as it offers no restriction.
I don't know what the result of doing so would be on the gas flow but I'd expect it to be less than optimal.
The HTEV has only one purpose - to restrict exhaust gas flow to boost midrange (4000-8000rpm). Removing it will obviously result in a loss of midrange.
I suggest you reinstall the rotary valve into the HTEV, put it into the midrange position and see if it improves.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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