Re: [ihc] Carb help needed

[David Bongo <dbongo@xxxxxxxxxxxxx>]

Dennis-

You've just about sold me on this.  I just need to get a part number and
go from there.  From what you're telling me, it's a relatively painless
but very worthwhile conversion.

The exhaust leak is kind of annoying, but only is an issue when the
engine is cold.  Still, someday I'll probably get it taken care of. 
Which avanue I take will be figured out at that time.

And Ted Borck - the carb I have was rebuilt, it's just missing a piece. 
Still, I have found the performance of the current setup somewhat
lackluster, so I probably will do this upgrade.

Thanks for all the help everybody.

Dave

Dennis Bernth wrote:
> 
> Dave-
> I don't think the auto trans kickdown would be any type of insurmountable
> problem. Lokar for one (check Summit Racing catalog) makes a trick kickdown
> cable that is adaptable to about any setup. Something like that could ease
> installation considerably, and they aren't very expensive- $30 or so IIRC.
> That might be a better investment than having your mechanic diddle with the
> stock setup trying to make it work, at who knows how much $$ per hour. From
> what I get from my buddy and from reading what happy users on BB say, the
> Weber just gives you all round better performance. More 'guts' to be sure,
> better fuel mileage, and improved driveability. Although the 'more guts' and
> 'better fuel mileage' seem to contradict themselves, they really don't- the
> Weber is a progressive two barrel (kind of like half of a four barrel). The
> primary barrel is quite a bit smaller than the normal one barrel carb, that
> improves fuel mileage in normal driving. The second barrel is quite a bit
> bigger, and only kicks in when you ask for more power- which is what you
> get, a lot like kicking in the secondaries on a four barrel carb. In your
> kind of driving, you would probably run 90-95% of the time on the primary,
> which could save you quite a bit of fuel and also be good for extending the
> life of your engine. But, it would be nice to know that if you misjudge your
> distances and that loaded cement mixer is closer than you thought as you
> pull out of that mailbox, you could hammer it and it would jump  right
> smartly to get out of the way. As for headers, I'm personally not a fan, but
> that's just me. Probably a function of where I live (rust belt), so they
> don't last long. Plus, the RPM range that the IH engines live at (and your
> IH/Jeep engine in your application specifically) they really don't get much
> advantage from headers. Tom M and his 304 race engine- sure. He's pulling
> RPM's and needs to breathe better. Your smogless 258 probably does fine with
> the stock manifold. You might want to spend some time on the Jeep boards- I
> think AMC may have made a cast iron 'header style' manifold later on that
> that will fit your engine if you want to go that route. I do know they used
> a pretty sweet aluminum two barrel manifold on some of the Jeeps and AMC
> cars around 1982-83. It had an electric preheater and it's own water jacket
> for hot water heat for better fuel atomization. I had one to put on my old
> 800A but never installed it, but I liked the looks of it. If you decide to
> have your exhaust manifold pulled to fix the exhaust leak (I would, but
> little stuff bothers me), I'd have it checked and trued at a machine shop
> before reinstalling it. The long cast iron manifolds, with the heat they
> get, tend to warp, and new gaskets usually won't fix the leak for long if at
> all. If you're paying labor, again it's probably smarter to do it right once
> and let your mechanic have the best chance he can at getting a good seal on
> it.
> Sorry for the book, just my cent and a half.
> Dennis
> ----- Original Message -----
> From: "David Bongo" <dbongo@domain.elided>
> To: "Dennis Bernth" <scoutdude@domain.elided>
> Cc: "Mac @ TRIAD" <mac@domain.elided>; <ihc@domain.elided>
> Sent: Saturday, December 13, 2003 11:25 PM
> Subject: Re: [ihc] Carb help needed
> 
> > Dennis,
> >
> > Don't sell yourself short.  Or overestimate me.  Your message and Mac's
> > complemented each other tremendously.
> >
> > Yes, I do have an auto tranny so kickdown linkage would be an issue.
> > You both make good arguements for going with the Weber.  First, if I can
> > fix the shoke on the Holley, would my only advantage with the Weber be
> > increased fuel economy?  (i.e. what effect on engine longevity?)
> >
> > Let's fastforward a bit here, and say I do go with the Weber.  I
> > currently have the stock exhaust manifold.  Would it be worth it (in my
> > line of work) to install headers?  My exhaust manifold has a slight
> > leak, but nothing major.  The exhaust system is pretty "wide open" (No
> > emissions testing here, if you get my point...)
> >
> > I can deal with $400 for a Weber if I have to.  Not a big deal and that
> > could be paid off inside of a year, depending on how gas prices go.
> >
> > Dave