maccavvy
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| posted on 17/3/13 at 03:18 PM |
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bike carbs
Im looking at getting some bike carbs for my 2.0 pinto I want to source the carbs get a manifold and do it all myself.
Ive seen loads of carbs on ebay etc ,what would be best to get, are a particular model better should I get from biggest engine possible or are ones
from a 600cc bike ok.
any advice appreciated
Understeer , when the front hits a wall
Oversteer, when the back hits a wall
Horsepower ,how fast you hit the wall
Torque ,how far you take the wall with you
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macc man
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| posted on 17/3/13 at 04:48 PM |
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I used ZX9R carbs on my 2.0 Zetec work well. Having said that I tried ZX6R and seemed fine also. The 600cc ones will nearly always be cheaper and
loads about. Personal choice I guess. I think the potential for further mods is better with the bigger carbs.
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Daddylonglegs
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| posted on 17/3/13 at 05:05 PM |
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Sorry to hijack maccavvy 
I am thinking of doing the same. I have some ZX9R carbs, what else will I need apart from making a manifold?
Ta 
It looks like the Midget is winning at the moment......
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snapper
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| posted on 17/3/13 at 07:44 PM |
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As a general rule match carb outlet size to engine inlet port size
Can't go far wrong
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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maccavvy
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| posted on 17/3/13 at 08:26 PM |
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quote:
Originally posted by snapper
As a general rule match carb outlet size to engine inlet port size
Can't go far wrong
but what is the port size of a standard pinto 2.0 ????
Understeer , when the front hits a wall
Oversteer, when the back hits a wall
Horsepower ,how fast you hit the wall
Torque ,how far you take the wall with you
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maccavvy
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| posted on 17/3/13 at 08:27 PM |
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quote:
Originally posted by snapper
As a general rule match carb outlet size to engine inlet port size
Can't go far wrong
oops double post.
[Edited on 17/3/13 by maccavvy]
Understeer , when the front hits a wall
Oversteer, when the back hits a wall
Horsepower ,how fast you hit the wall
Torque ,how far you take the wall with you
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umgrybab
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| posted on 17/3/13 at 08:58 PM |
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I think more important than matching port size is matching flow rate. A bike engine revs out to nearly 14K with only a 600cc engine gives you a max
flow rate of 8400 l/min. A 2.0 pinto will reach this flow rate at 4200 rpm, so 600cc carbs may be a little small but 750's at 14K give you an
equivalent at 5250 rpm. This may be as far as you want to push your unmod'd pinto. This isn't law in anyway. Its just a rule of thumb. It
should allow easier set up and tuning by matching the fluid flow rate.
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