ya... i'm aware... I have variable venturi carbs. However being that i haven't put in thousands of hours into developement as rolls royce would have. Therefore being that all of these setups are custom they have little quirks.... Mine is ridiculously sensitive to whether conditions. I had a weber that was very well tuned and although it need to but upped to a 38/38 due to the large cam i was using it was a much more reliable and consistent setup.
Zeph Uusitalo
Proof That Bike Carbs Work On An A20!
Dyno'd the accord. It made 104HP 117TQ.... And blew smoke everywhere. I guess the 210K motor really is done
Originally Posted by Zufer
If you used a stand alone ignition I think you would get more out of the quad set ups. You could program you timing to smooth out the carbs transition stages. Also some kind of cold start enrichment system would help too.
Last edited by 2oodoor; 11-28-2008 at 03:40 PM.
if anyone does do carbs that clamp on,these are the kind of clamps you need, they put 360 degree pressure on the fitting
wow this is an intense thread
word brotha , just realized i must of missed this
1988 Honda Accord LX-i Coupe 123k miles.
i kinda like these threads, just to see what sorta ideas are being thrown around out there.
a few additions i would like to add.
su carbs do have a jet.
that brass tube that the needle slides in and out of is the jet.
they come in many various sizes to suit fuel the motor needs.
chances are, that if you keep modding a motor running su's, you'll run out of flow in the jet eventually , so you just get the next size up.
the needles arnt a straight taper in most cases.
if you could scale a needle up by a huge amount, you'd find that the degree of taper changes quite a bit over its length to suit the amount of fuel needed at that dash pot opening.
jaguar didnt stop using su's until they went racing with the c and d types and that was just because the dcoe linkage for 3 carbs was easier and more reliable than linkages for 6 su's.
oh and once they entered the usa market they swapped to stromberg cd series carbs for that oil leaking reason stated earlier.
as for the bike carb bit.
the poms started out using amal smoothbores, coz they were cheap, plentiful,compact and easy to tune. and they have no butterfly being a round slide carb.
syncronising them to all open at the same time is a shit tho.
i think that using bike carbs is a good idea to.
as most are similar to a cd stromberg in design they are a nice smooth carb and simple to rebuild and tune.
a manifold is piece of piss to make, a flange with a tube per carb and you are set.
just need a linkage needed then.
am looking forward to see how the lost mobile goes when he's all done
and i say give it a go garfunkle, what you got to loose apart from time
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