Hi everyone!

On Monday morning I finished up my installation of a Clifford Performance water heated intake (Clifford PN 45-4500WH) with my Dutra dual exhaust. I modified another stock exhaust manifold casting like you would for a Dutra dual system, but removed more material from the heat stove area. A plate was fitted to this "chopped" heatstove.

The Dutra casting I have is Doug's newer casting (with the big rectangular flange). I had to grind a lot of material off to get the water passage on the Clifford manifold to clear it. Also, the water passage part of the intake had to be notched slightly (I was careful no to remove too much aluminum). A little grinding with the Dremel had to be done on the flanges of the Clifford intake to get it to clear the manifold studs.

What can I say, I've never seen my engine run more smoothly. I still have to adjust the throttle cable a little (not getting to WOT). Now all I need is a digital camera so I can post some images.

Patrick Devlin

pwd22@drexel.edu

Hey Patrick,

I just did a similar swap on my '68 Dart two weeks ago. I have both Dutra manifolds front and back (same casting with big rectangular flange), so I didn't have the heat stove issue. But, I too had to grind a fair amount of material off of both exh manifolds (1/4-1/2")and a bit off the water jacket on the intake. I also did a little grinding on the intake where the studs come through to get good alignment to the head.

I had the Offy 4bbl intake on there before, and I still need to rejet and retune my carb for the Clifford manifold. So far, it runs great, although I need to lean out the idle mixture a bit. Gotta run the water into the intake jacket too...

Cheers,

Lou

madsenl@its.caltech.edu

Hi Lou,

It's also a coincidence that my car is a '68 Dart 4-door. I forgot to mention that I'm using the same Weber DGEV that I ran with my Super Six intake.

Patrick


pwd22@drexel.edu

If your '68 4dr is medium metallic blue, then I suspect that we are cosmically linked... I am running an Edelbrock 500 4bbl on mine.

Long live the Slanted 4 doors!

Lou

madsenl@its.caltech.edu

does that water jacket run all thru the intake? If so that could be a built in liquid to air intercooler for a turbo or supercharger. just a idea!!

andrew wagner

Hey Andrew,

To answer Lou first, my car is beige...so the weirdness ends there

The water heat area of the Clifford intake runs under the plenum (not under the runners) in a straight line. I'm going to see if I can borrow a digital camera to get some pictures up here. I do suppose the manifold could be cooled the same way that it's heated. Hmm, maybe when I start running a turbo...

Patrick

pwd22@drexel.edu

Hey Andrew,

Great idea! That is something I was considering when I bought the intake. It might even be intercooled for running MP-EFI with a cooler air charge. The cooling jacket only runs under the main plenum, but a cool enough intake (using dry ice or LN2) might be worth something.

cheers,

Lou

madsenl@its.caltech.edu

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Hmmmmm.....consider.....if one could seal it up enough, and be assured of handling the pressures required, I can't help but wonder if it would be worth running an AC compressor on the engine, and cooling off the plenum with that system. If it works, why couldn't one also use an AC system for trans cooling, p/s cooling, etc.?
Then again, there might be more heat than an AC system can handle. I'm no expert, but just a brainstorm, (brainfart?)

Roger

GTS225@aol.com

Can we see some pictures/description of this work? I'm looking at putting a cool triple-SU setup on my Lancer, and installing Dutra Duals at the same time. This setup, like your Clifford intake, does not use exhaust heat for the intake manifold. The "Dual Dutra Dual" setup looks flash, but it seems there'd be no way to clear the starter and everything else that's crammed together back there on the '62 (and I will not use a mini-starter!).
:
: The Dutra casting I have is Doug's newer
: casting (with the big rectangular flange). I
: had to grind a lot of material off to get
: the water passage on the Clifford manifold
: to clear it. Also, the water passage part of
: the intake had to be notched slightly (I was
: careful no to remove too much aluminum). A
: little grinding with the Dremel had to be
: done on the flanges of the Clifford intake
: to get it to clear the manifold studs.
:
: What can I say, I've never seen my engine run
: more smoothly. I still have to adjust the
: throttle cable a little (not getting to
: WOT). Now all I need is a digital camera so
: I can post some images.
:
: Patrick Devlin


redbear@vrx.net

Hi Dan,

Look at the picture linked in my profile (engine bay picture). It's not the best picture. I'd take another picture for you right now, but it's raining in this part of Pennsylvania.

Patrick Devlin


pwd22@drexel.edu