bike carbs

[holdenchris]

Would 750 gsx carbs be ok for a 2ltr ford,i like the idea of bike carbs but dont where to start,seen a set of these carbs on trade me any help would be appreciated.

[twinturbo]

there was a link to a guide posted up last week.

TT

[brainbug007]

I'm sure alot of other people have tried the 750's and said the throttle response was really poor. I think the key is gettin carbs that have a diameter close to the inlets on your engine. I'm using zx6r carbs on a 1.8 cvh (about 36mm inlets).

[TSM Locost]

As twin said. This one http://www.classicfordmag.co.uk/file...F166.bike_.pdf

This might help http://www.totalvauxhall.co.uk/files....tech60697.pdf

[snapper]

I have GSXR 750 carbs on a 2.1 Pinto the throttle response is certainly NOT slow.
The good thing about bike carbs are that they have a variable venturi which reacts to the demands of the engine, better than Webers and so much easier to set up.
A general rule of thumb is to pick carbs with a rear outlet inner diameter the same size as the inlet port on the head, that said 36 to 42mm are ok as the Venturi will raise the needle as much (or little) as the engine requires.

Andy Bates ( he of AB Performance and Dragons Den fame) recomended roller barrel carbs as there is no restriction or throttle plate pivot in the way at WOT, he did say however that the throttle had to be "fed in" and not slammed open.

[baz-r]

Originally Posted by snapper

however that the throttle had to be "fed in" and not slammed open.

bit like when you ride a bike then?
i ripped open to the stop the throttle on my yam thunderace with some intersting effects. the spin up was fun the first few times then when the front went skywards when the tyre caught grip and i soiled myself i was a little more careful

bike carbs a very simular to old su's in operation and there was a few honda cars that had very bikey looking multi carb setups i used to work on
(real early vtec 16v single cam iirc) thay went well
the way a verible venturi works is the best at atomization of fuel at all engine speeds as the air speed is almost constent at the point where the fuel joins the airflow and until the japs got hold of them and made them work on bike engines there was no performance option realy
i love them tbh

[holdenchris]

Thanks for all the replies guys,found link very useful.