since I found the apparently best needle for my stage 1'd mini and set the
carburation, the car just guzzles down fuel as it never had. Any clues on
what the problem could be? The carburation is about right, did the job with
a colortune plug. when I set the carb to what it is now I also used 10W40
oil in the dashpot damper. I'm pretty sure that the previous oil that was
used was much thinner, I can really feel the difference when lifting the
piston by hand. could this affect the fuel consuption? I've also been using
high (99) octane petrol since.
cheers

dantiri

"Dantiri" <dtirinnanziNOSPAM (AT) tin (DOT) it> wrote

Dantiri wrote:

I would have thought that the original needle would have been close for
a stage one.

When you bought the needle did you get the spring to compensate for the
needle.

Try putting the original needle back and tell us what happens then.

What carb are you using and what needle?

Cheers,

Kelley

On Sun, 21 Sep 2003 11:00:54 GMT, "Dantiri" <dtirinnanziNOSPAM (AT) tin (DOT) it>
wrote:

"Kelley Mascher" <mascherk (AT) comcast (DOT) net> ha scritto nel messaggio
news:lfjrmvo3lqin5encp3ncm4rpam1biq2bms (AT) 4ax (DOT) com...
HS4 carb with AAA needle

Dantiri

Just as a point of comparison, 1275 GT engines with an HS4 used an AAR
needle. The AAA needle is much, much richer than an AAR. In fact the
AAA would only be good for a highly tuned 1275 not full race but
getting close.

My guess is that your running really rich at part throttle.

Cheers,

Kelley

On Mon, 22 Sep 2003 18:07:05 GMT, "Dantiri" <dtirinnanziNOSPAM (AT) tin (DOT) it>
wrote:

Kelley Mascher <mascherk (AT) comcast (DOT) net> wrote in
news:tgs0nv8u2d8r5hjv65m8iv12qs3ihl82ea (AT) 4ax (DOT) com:

They did?!?

Both of mine had/have ABB's! AAR looks to build to be noticably richer at
half way and about the same at the tip.

I just drove home in rush hour traffic 'the back way', lots of tight
corners and all uphill! It was fabulous!!! - man I love my car

splam wrote:


Don't forget to look at WinSU for needles

http://homepage.ntlworld.com/sbeavis/winsu/winsu.html

AAR is what SU list for '71 1275GT and part of '72. 1972 and later
(unsure how much later) used the ABB.

Just in case anyone is interested the Haynes SU manual is well worth
the money. It's pretty easy to compare needles and in addition there
is an applications list that allows you to look up a larger engine
size and get a feel for a good starting point in needle selection for
your modified engine. There is also a list of Works specs for various
cars.

Cheers,

Kelley

On Wed, 24 Sep 2003 05:41:56 GMT, splam <xsplam (AT) moo (DOT) com> wrote: