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Fullpower
Posted on Friday, November 21, 2003 - 06:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
does anyone know how effective the ram air intake on the buells is. has any one ever taken a intake air pressure reading? i wonder if these bikes make more power at speed than the dyno numbers indicate. its raining on the iced up roads, so im kinda bored. some one some where, go shred some rubber for me. thanks, dean
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M1combat
Posted on Friday, November 21, 2003 - 06:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
I'll be shredding some rubber here in about 40 minutes my friend... Hey... It's 4:20... he he.

On the subject though... It's not "ram air" as such. Most of the ducting is to force air to the rear cylinder.
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Fullpower
Posted on Friday, November 21, 2003 - 06:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
M1 look up "megasquirt" open source code DIY fuel injection system. looks interesting- for a serious hot rod. hey arent you at work?
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M1combat
Posted on Friday, November 21, 2003 - 06:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
Yes I am. I miss out on SOOO much here...

Will do.
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M1combat
Posted on Friday, November 21, 2003 - 06:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
"MegaSquirt uses an oxygen sensor as feedback for mixture AFR control. MegaSquirt is compatable with single wire (unheated - like Bosch Part Number 12014, used everywhere ) as well as heated units. All parameters that control the feedback (step size and rate, range, trip threshold voltage) are user-controlled. Additionally, since the trip point voltage is user-defined, MegaSquirt is compatable with the DIY-WB (wideband) oxygen sensor board - one simply sets the desired air/fuel ratio trip voltage and you are there. "

This looks interesting... anyone know if the stock injector is compatible??? I suppose it doesn't matter as we can probably get one that suits our purpose and is compatible.
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Fullpower
Posted on Friday, November 21, 2003 - 06:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
they say it is compatible/ configurable for any solenoid injector. couple guys used it on a big inch harley, made 120 horse power.
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Blake
Posted on Friday, November 21, 2003 - 09:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
To the ram air question... even if the XB's had true ram air intakes they wouldn't be doing much good under 140 mph. The boost in performance due to ram air can be roughly estimated by the following...

%Boost = V2/8280


Where V2 is the speed in mph.

So at 100 mph the %Boost is 1002/8280=1.2%

At 140 mph the %Boost increases to 1402/8280=2.4%
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Anonymous
Posted on Monday, November 24, 2003 - 06:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
I was informed by a reliable insider, that the Ram Air system used on this years (semi-factory)race bikes will be available to all in 2004.
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Blake
Posted on Tuesday, November 25, 2003 - 07:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
That is good and welcome news... But does that ugly contraption really do any good compared to simply drilling the airbox cover full of holes?
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Shazam
Posted on Tuesday, November 25, 2003 - 11:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
Megasquirt should have it's own thread, anyone going big bore on an XB will have an interest in this subject and other's thought's on it.
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