blakep82
|
| posted on 2/6/09 at 01:54 PM |
|
|
hows this bike carb angle?
as you can see, i can't angle them any further due to that chassis bar (which i won't be cutting out before anyone suggests it  )
it won't be a problem though will it?
i've seen bke carbs on the bogg bros site showing them being used as downdraught carbs.
in the final version of this manifold, i plan to have the carbs about an inch or 2 closer to the engine. where the silicone hose starts actually. what
would that do for performance and torque etc? in fact you can see on 3 of the tubes, a pencil line where i was going to cut the tubes
[Edited on 2/6/09 by blakep82]
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
|
|
coozer
|
| posted on 2/6/09 at 02:24 PM |
|
|
Cut the inlet runners and move them in, looks like you would get a bit more angle there.
1972 V8 Jago
1980 Z750
|
|
|
BenB
|
| posted on 2/6/09 at 02:37 PM |
|
|
Angle looks okay but I'm not sure re space for an air filter... Are you planning a plenum of individual socks?!?!?!
|
|
|
blakep82
|
| posted on 2/6/09 at 02:44 PM |
|
|
thanks lads 
steve, the problem with any more angle to them is, if i move them closer, that tube then interferes with the filter
i know ideally on a bike theres more of an angle to them, but what would happen here? would the bowls just fill up less or something
as for filters, anything that will fit really... probably individual socks. if thats going to be difficult, then i'll maybe look towards an
airbox/plenum type thing. there's not really much more i can do about space...
remember the carbs will be a fair bit closer to the engine when the final version is done. that one is really more of a model for someone else to copy
and make a proper one lol.
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
MikeRJ
|
| posted on 2/6/09 at 02:45 PM |
|
|
quote:
Originally posted by blakep82
it won't be a problem though will it?
i've seen bke carbs on the bogg bros site showing them being used as downdraught carbs.
That's because some bike carbs are effectively downdraft designs. That doesn't mean you can use a sidedraft one and turn it through 90
degrees though!
|
|
|
blakep82
|
| posted on 2/6/09 at 02:48 PM |
|
|
quote:
Originally posted by MikeRJ
quote:
Originally posted by blakep82
it won't be a problem though will it?
i've seen bke carbs on the bogg bros site showing them being used as downdraught carbs.
That's because some bike carbs are effectively downdraft designs. That doesn't mean you can use a sidedraft one and turn it through 90
degrees though!
ah, i just thought they were able to handle a wider range in angles, for wheelies and stuff.
mine are zx9r if it makes any odds then
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
Charlie_Zetec
|
| posted on 2/6/09 at 03:09 PM |
|
|
Does the angle not affect the fuelling? I thought I'd heard somewhere that bike carbs used a method whereby if they titled above/below a
certain angle (depending on how you look at it) the fuelling cut? Or is that pump-based?
Or, am I really just making all this up? It is rather hot outside, the heat might have affected me....
Artificial intelligence is no match for natural stupidity!
|
|
|
whitestu
|
| posted on 2/6/09 at 03:59 PM |
|
|
My ZX6R carbs are completely horizontal so not angled at all.
They work perfectly. I recently did a track day and had no fuelling problems at all.
I actually made a manifold to fit them at the correct angle and there was no difference when driving the car so I went back to my original design.
Stu
Stu
|
|
|
blakep82
|
| posted on 2/6/09 at 04:01 PM |
|
|
quote:
Originally posted by whitestu
My ZX6R carbs are completely horizontal so not angled at all.
They work perfectly. I recently did a track day and had no fuelling problems at all.
I actually made a manifold to fit them at the correct angle and there was no difference when driving the car so I went back to my original design.
Stu
Stu
good to know! thanks
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
iank
|
| posted on 2/6/09 at 05:10 PM |
|
|
In general the longer the distance between valve and butterfly the more torque you get.
Don't use filter socks, they don't flow as well as a proper filter, and tend to get sucked through the engine at some point which does it
no good at all.
Best to fabricate a plenum like clairtoo (or buy one from triton) or use a sausage filter if you have the room (looks like you will if you lop an inch
off the manifold).
Angle question appear to have been answered, but for confirmation look at the angle they are mounted on the bike donor - that's got to work
properly.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
|
|
|
