Jon:
Yeah. I understand the religious debate thing. I'm somewhat of a computer
geek too, aka Windows vs Mac. You can easily incite the same here on the
list sometimes too.
I ran the stock twin SU's that came on a 73 model. I've driven a couple of
other cars with a Weber DCOE (don't recall if they were the model 45) on
them and my experience is that low end power was lost and you had to rev the
Hell out of them to get any power. May be that these other cars that I drove
with the DCOE's weren't jetted/tuned right or something (one was an older
Alfa of similar engine size to the 1800 CC B engine) but I don't think so. I
personally believe it is a trait of the carb and its all out design for
power at top RPM. Some motors are made for high RPM and can utilize the DCOE
design. An MG is NOT designed that way. If you run the B wide open for
racing all the time, the DCOE will probably be appropriate - but for every
day street driving, if you do the other stuff I mentioned, I believe that
you'll be happier with the SU's.
I'm long out of it and my experience comes from the era when B's were still
being made new but I believe I've advised you right here. IMHO. I'm sure
others will let you know their opinions too, now that I've put myself in
harm's way expressing myself here. Flame away listers. Jon Tabor need the
help!
Still pokin around the ol MG list.
Jerry
Jerry Erbesfield
Was - 73 Black beauty MGB roadster
Now - C-5 Black Beauty Vette roadster
E-mail: jerbesfield@mindspring.com
Website: http://jerbesfield.home.mindspring.com
> -----Original Message-----
> From: Jon Tabor [mailto:sentar@www.nwscan.net]
> Sent: Wednesday, March 17, 2004 11:54 AM
> To: Jerry Erbesfield; mgs@autox.team.net
> Subject: RE: making power above 3800 rpm?
>
>
> On Tue, 16 Mar 2004, Jerry Erbesfield wrote:
>
> > model B, which had higher compression to start with, I
> bored it .060
> > over (that's pretty much the limit and you gotta be lucky
> to get away
> > with that much), put in earlier model flat top pistons and I milled
> > the head substantially (don't recall exactly how much).
>
> May I ask what carb you ran on that bad boy? I purchased for a few
> dollars a 70 BGT that sat through a flood, but the engine is
> .060 over and
> had many of the goodies done to the head that you described
> as having done
> to yours. It came with a 45DCOE on it, and reports of when
> it ran said
> that it was scary quick.
>
> After reading this list for a while, I've come away with the
> thought that perhaps a couple of SU's would be better for a
> street driving machine. I know I'm opening a religious
> debate here (ala vi vs emacs in the Unix world), but wanted
> to get some real world thoughts. I haven't cracked open the
> engine yet or taken it to anybody to find out exactly what
> was indeed done to it, but I was told by the my friend, who
> was the PO (who was told by the PPO) that the head had been
> ported, polished, and relieved at the same time as the engine
> had been rebuilt.
>
> --
> Jon Tabor
> ---------------------------------
> Cross-Platform Geek and
> General Stundent of Computing
> ---------------------------------
> taborj@xprt.net sentar@nwscan.net
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