Re. Carburation advice for Fiat 2 Ltr twin cam

[Kevin Udy]

I have recently bought a poorly built Marlin with a Fiat Argenta 2 litre 132
Twin cam engine. It has a carb from a 2 Litre Ford Capri, and is scoffing
juice at 23 MPG, driven gently.
Can anyone advise a carb settup with economy in mind?
Either jetting for this carb, or a better carb for the job, and perhaps
what sort of MPG I can realistically expect from this engine.
I am also considering a more economical engine if this one is not noted for
its economy, and would appreciate any advice on anyalternatives.
Any Marlin owners in the Taunton area?
Many thanks, Kevin Udy

[Toby Mack]

Can't answer your question but the Marlin Owners club tech rep for the
Marina based roadster lives in Croyde which is not a million miles from you.

If you've got the car I'd recommend joining the club (I've just sent of my
£12.50!). I think there is a contact email address at
www.marlinoc.freeserve.co.uk.
email me if you can't find it.

Me, I'm still looking for a car, anyone got a nice LWB going cheap? :-)

--
Toby

Kevin Udy <kevi...@virgin.net> wrote in message
news:7s603e$1ka$1...@nclient13-gui.server.virgin.net...

[Neill Hucklesby]

>
> Kevin Udy <kevi...@virgin.net> wrote in message
> news:7s603e$1ka$1...@nclient13-gui.server.virgin.net...
> > I have recently bought a poorly built Marlin with a Fiat Argenta 2
litre
> 132
> > Twin cam engine. It has a carb from a 2 Litre Ford Capri, and is
scoffing
> > juice at 23 MPG, driven gently.
> > Can anyone advise a carb settup with economy in mind?

Hi Kevin

I have a Fiat 131 2L TC in my Severn replica, I have the same sort of
consumption figures. I have just fitted twin 40's and my fuel economy has
improved slightly, driven sensibly though. I guess being an old engine
effiecency was not high on the design list.

Regards Neill

[malco...@my-deja.com]

In article <7s603e$1ka$1...@nclient13-gui.server.virgin.net>,

"Kevin Udy" <kevi...@virgin.net> wrote:
> I have recently bought a poorly built Marlin with a Fiat Argenta 2
litre 132
> Twin cam engine. It has a carb from a 2 Litre Ford Capri, and is
scoffing
> juice at 23 MPG, driven gently.
> Can anyone advise a carb settup with economy in mind?

> Either jetting for this carb, or a better carb for the job, and
perhaps
> what sort of MPG I can realistically expect from this engine.
> I am also considering a more economical engine if this one is not
noted for
> its economy, and would appreciate any advice on anyalternatives.
> Any Marlin owners in the Taunton area?
> Many thanks, Kevin Udy
>
>

Hum, Fiat engines if set up correctly give lots of power and are better
than that on the petrol. If you really want to go the carb route then
twin 40's are the way to go, though you will have to fiddle about
jetting them properly. The fiat 131 2000 TC used webers and if you can
find parts from one that would be one option. Basically dump the ford
carb as fast as you can as it is cr*p. Even a single carb, a twin choke
weber as fitted to early fiat 131 1600 and 2litre engines will give
better performance and fuel figures. Why would anybody put a ford carb
for lazy ford engines on a fiat engine which has exactly the opposite
characteristics?
THe other option is to go the injection route either weber, which was
used on the Lancia 1600 & 2000cc delta/prisma range of engines (Same as
a fiat with different badges!) or Bosch which was fitted to some fiat
engines. I have a 1500 SOHC fiat engine with injection which gives
110BHP and will turn 38mpg on the road. It's in an old rally car I
still have. THis injection (fitted to later versions of the Fiat X1/9)
can be adapted to fit the twin cam engines......
For a more modern engine, but basically the same block, see if you can
get a Fiat 16v 2,0l out of a Tipo, they were abit of a boy racer car
and I should think there are afew in the scrap yards by now, Oh last
port of call the old Strada 130TC, 130BHP out of the box from a 1600,
but it will drink fuel simply because you can't help sticking the right
boot in.
Having solved the mysteries of injection over the years it's a better
way to go, just make sure you get all the bits from the scrap when or
if) you go.

Good Luck,
Malc
Scotland

Sent via Deja.com http://www.deja.com/
Before you buy.

[PumaRacing]

>Subject: Re: Re. Carburation advice for Fiat 2 Ltr twin cam
>From: malco...@my-deja.com
>Date: Mon, 27 September 1999 12:49 PM EDT
>Message-id: <7so76g$i3t$1...@nnrp1.deja.com>

Carbs do not have "characteristics" like lazy. They just meter fuel. The Weber
32/36 DGAV is an excellent carb and is not designed for a "lazy" engine even if
that adjective applied to Fords. All that will be wrong is that it is probably
jetted too rich. If you want more power then a pair of sidedraft Webers or
Dellortos will be worth perhaps 12 bhp on a std engine - more if the engine is
tuned and the single carb becomes a greater restriction.

Take it to a rolling road and get it jetted properly. 30mpg plus should be
perfectly possible.

Dave Baker at Puma Race Engines (London - England) - specialist cylinder head
work, flow development and engine blueprinting. Web page at
http://members.aol.com/pumaracing/index.htm

[malco...@my-deja.com]

In article <19990927140435...@ng-fo1.aol.com>,

Dave,
Didn't maen that ford engines were lazy, they just have different
characteristics form Fiat/Lancia! What I find surprising is that very
few people go the injection route - any thoughts on this one?
Malc