Nova Carbs

[dionbee]

Hi, Not a new member, But decided to delete my old username and start another.

In the middle of building a Road Rally car (Will get a thread up soon)
Running a 1.4 8v out of what I believe to be an Astra Mk1
Kent vernier and NVO52 Cam.
Was just wondering whats the best spec (Cheap-ish) carb setup to run.

Bearing in mind that I'm only allowed twin choke and no twin's for R/R

Cheers,

Dion!

[Novasport]

Nova SR Pierburg 2E3 or a Weber twin choke replacement. Both unfortunately are getting quite popular amongst the grass trackers and so have shot up in price.
A rolling road I went to years ago said a Sierra twin choke Pierburg(I think from a 1.8) would be as good as twin carbs on a tuned small block. Never tried it though.

[garyc]

there was a thread about this we week or so ago. They were going to run a Weber DGAS of the ford 3L capri. Personally if I was going to do this seriously I would go for a twin SU set up on a custom built manifold. Its the tarmac oval lads that use the pierburgs, and not many use the weber convesion carb in autograss.

[dionbee]

I have also been thinking of just chucking on a standard SR carb but as said, Getting hard to get hold of now!
This is on ebay at the moment and fairly local, Looks a bit far from the head for the carb to be situated but what do you think?
http://i146.photobucket.com/albums/r254/dionbee93/carb.jpg (http://s146.photobucket.com/user/dionbee93/media/carb.jpg.html)

Dion!

[garyc]

That has to go through a 32mm restrictor so defeating the objext of having a 40 on the end, they also ice up on just 4 laps of an autograss hence the copper pipe wrapped round it. Your easiest route would be to use a 1300 MK1 astra inlet and bolt a plate to it then fit a suitable downdraught carb to the plate eg drla dellorto (might be a tight fit).

[skidmark]

Excuse my ignorance but how does it work with the copper pipe they run hot water round that?

[dionbee]

Was thinking the same Gary. I've already got an Astra mk1 Inlet with the plate bolted on running a Volkswages early Weber 32/34 on there, Was just looking for something a little better. I was wondering what the copper pipe running around was..

Dion!

[garyc]

as the fuel\air narrows down to the 32 mm restrictor it gets colder, to a point that moisture from the air freezes. If you dont run the copper pipe with warm coolant going through it the engine stops.

32\34 good for about 125HP apparently

[dionbee]

Thanks for the reply Gary.
I'm not really hoping for more than 110bhp anyway, So that shouldnt be a problem. Engine going in a road rally car, Power is not everything down the lanes..
thanks,

Dion!

[mowgli]

if you can find an astra mk1 manifold with a gm varajet carb, it would be pretty good. they used them on 2.0L engines back in the day & the chokes were pretty massive