jambojeef
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| posted on 4/3/06 at 05:19 PM |
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dynojet vs drills!
Hi all,
Time has come to sort out my fuelling.
I have connected a std 4-wire lamda sensor yp to my exhaust after the turbo(wide band next month fingers x'd) and have checked fuelling.
As you might expect its lean as soon at it comes off idle and remains lean all the way up the rev range (no load, just freely revving)
So the question is, who has modified the keihin carbs fitted to 90's blades and the CBR1000?
Did you use a dnojet kit and if you drilled your jets - how much and how do you dissasemble them?
Yours thoughts gents...
Cheers
Geoff
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givemethebighammer
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| posted on 4/3/06 at 05:31 PM |
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The honda blackbird dynojet kit uses 155 mains, weaker slide springs and supplies a drill to enlarge the vacuum hole in the bottom of the slide from
2mm to 2.5mm. Not sure what the original main jet size was (145, I think ?). Other kits also block one of the air jets in the fronts of the carb to
further richen the mixture.
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mark chandler
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| posted on 4/3/06 at 05:44 PM |
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I,d expect it to be lean with no load !
Why are you fighting with carbs anyway, I,m going to turbo my blade engine in the fullness of time so got some throttle bodies off Ebay for £50
complete.
With a basic megasquirt I can run a turbo closed loop so the total cost would be under £200 and infinately variable.
As a matter of interest what turbo are you running as I need to sort something out when I get to this stage.
Regards Mark
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Gav
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| posted on 4/3/06 at 06:15 PM |
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Mark, just out of interest how are you going to drive megasquirt?
ie how are you going to fit a trigger wheel?
[Edited on 4/3/06 by Gav]
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mark chandler
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| posted on 4/3/06 at 06:41 PM |
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Basic megasquirt just needs a pulse from the bikes coils.
I will not be running spark'n'squirt so no trigger wheel required, just squirting !
Regards Mark
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Gav
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| posted on 4/3/06 at 06:52 PM |
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ah excellent, in that case i think im gonna go with throttle boddies from the start!
Think ill start researching this in ernest 
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jambojeef
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| posted on 4/3/06 at 08:04 PM |
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Hi all,
Thanks for the replies so far - I fully intend to go down the throttle bodies and megasquirt route later but for now I just need to richen things
up...
Bighammer - any ideas where I can find a piccy of this air-hole as come to think of it my mate blocked up this hole on his blade engined westy....
Geoff
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givemethebighammer
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| posted on 4/3/06 at 10:10 PM |
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Full details of fitting dynojet kit (TTS version) here:
http://djb321.my-bulldog.com/pages/djb321_my-bulldog_com/carb.htm
ps block it with a cocktail stick, reassembly the carbs. Test the car and if it has solved your problem. take the carbs apart and solder the hole
up.
[Edited on 4/3/06 by givemethebighammer]
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