CBR 929 Injectors ??
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Joined: Mar 2001
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From: Philadelphia, PA
Re: CBR 929 Injectors ?? (Moose)
I can make an educated guess. Fuel pressure on the cbrs is around the same as a civic, as far as i know. Honda usually runs their injectors close to 90% duty cycle, which would put the injectors at maybe 180cc.
Im collecting parts to do a custom turbo setup on my F4i, and have pretty much decided to go with a set of stock civic injectors. 240cc, should be good for a decent 175hp.
Im collecting parts to do a custom turbo setup on my F4i, and have pretty much decided to go with a set of stock civic injectors. 240cc, should be good for a decent 175hp.
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Joined: Sep 2001
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From: Toronto, Canada
I'm not sure if 185 cc is right ...
A stock 95 Civic Si makes 125 @ the crank and 105ish at the wheels .. it uses 240cc injectors ... the same injector size as the Type R with 195 at the Crank / 160ish at the wheels.
I would think with a high compression (11.3)high rpm motor as in the 929 185 cc injectors would be a bit small ... not leaving enough capacity to be "safe" ... and Honda's tend to be made "safe" this strong
I would have guessed in the 240cc range ... BUT i have not found out ANY real info
Cheers
Moose
A stock 95 Civic Si makes 125 @ the crank and 105ish at the wheels .. it uses 240cc injectors ... the same injector size as the Type R with 195 at the Crank / 160ish at the wheels.
I would think with a high compression (11.3)high rpm motor as in the 929 185 cc injectors would be a bit small ... not leaving enough capacity to be "safe" ... and Honda's tend to be made "safe" this strong
I would have guessed in the 240cc range ... BUT i have not found out ANY real info
Cheers
Moose
Member
Joined: Mar 2001
Posts: 3,331
Likes: 2
From: Philadelphia, PA
Re: CBR 929 Injectors ?? (Moose)
Im just making an educated guess with that number,
but since injector size goes mostly by HP and fuel pressure,
i feel that around 180ccs is probably close. The 240cc injectors used
in hondas dohc vtec motors are pretty much maxed out as far as duty
cycle goes. I would guess that the cbrs are probably the same way.
All just guesses though. I have been unable to find much info on hondas
FI system on their bikes....
However, if anyone has a 929 with a power commander, maybe they can help
you. The PC displays duty cycle. Once you you have the max duty cycle, it should
be pretty easy to figure it out. You already know the HP level and fuel pressure
of the bike, so punch all that info into the fuel injector worksheet at http://WWW.RCENG.COM and it will give you the answer
but since injector size goes mostly by HP and fuel pressure,
i feel that around 180ccs is probably close. The 240cc injectors used
in hondas dohc vtec motors are pretty much maxed out as far as duty
cycle goes. I would guess that the cbrs are probably the same way.
All just guesses though. I have been unable to find much info on hondas
FI system on their bikes....
However, if anyone has a 929 with a power commander, maybe they can help
you. The PC displays duty cycle. Once you you have the max duty cycle, it should
be pretty easy to figure it out. You already know the HP level and fuel pressure
of the bike, so punch all that info into the fuel injector worksheet at http://WWW.RCENG.COM and it will give you the answer
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