Andrew...
the diffrence between the soloexs and the SUs has a lot to do with the solex
cam shaft..
if you use the solex cam shaft with the SUs the power band is the same..
the effective throttle area of both carbs is about the same , the SU is
actually a hair bigger than the solex ....
one advantage of the solex, is throttle responce as they have accerator
pumps..
also solexs will idle better with hotter cam shafts..
to make the SUs have good throttle responce you have to raise the float
level up and this effects the idle, not a problem on a race car but a hassle
for on the street..
As far as dead zones that is not the carbs but the tuneing , i have solexs
and run with a 330 duration cam, 530 lift, it idles at 700 rpm and runs
smooth though the whole rpm range, also though there is not much pull under
4000 rpms, (has nothing to do with the solexs but the cam shaft. I did run
SUs on it , but it would not idle below 1000 rpms.. The solexs idled better
.......
Mike Kerr
Roadster Restoration
PH# 530-644-6777
Fax # 530-644-7252
Web page WWW.innercite.com/~wolfgang
----- Original Message -----
From: "Andrew Murphy" <solex67@hotmail.com>
To: <SRL311guy@aol.com>
Cc: <datsun-roadsters@autox.team.net>
Sent: Thursday, April 12, 2001 8:46 AM
Subject: Re: Solexes
> Ah, the old debate between Solexes and SUs kick up again. I have driven a
> solex car and an SU car. I think that both types of carbs will give great
> performance, but each is designed for a different application.
>
> I once made the mistake of saying that my solex powered 67 2000 was the
> fastest roadster I had ever driven. Craig Carter then challenged me to a
> race up a twisty road. He said to "bring your pink slip". He may have been
> kidding about the pink slip, but he wasn't kidding about the race.
>
> Vic Laury let me drive his SU car and I felt it had every bit as much
power
> as my solex car until it got into the 5k plus range. The solexes pull all
> the way to redline and I have yet to see an SU car do that. Consequently,
> the SUs offer better accelaration through the lower gears, while the
solexes
> have "dead zones" until you climb over 2500 to 3000 RPM. Once in that
range,
> the solexes roar to life.
>
> So it depends on what you want. I like the solexes. They have power and
> let's face it, they SOUND so cool. The SUs are definitly better suited for
> city driving and give even levels of power until you climb to the higher
> revs.
>
> My .02
>
>
> Andrew Murphy
> 1964 1500
> 1967 2000 Solex
> SoCalROC
>
> _________________________________________________________________
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