Re: [Amc-list] WHat year 258's get water intake? Real world advantage?

[Wrambler <wrambler242@xxxxxxxxxxx>]

As Andrew says the intake does not do a whole lot for warmup.
the coolant is to cold to help much.
What I wrestled with was getting a good all around tune out of a Clifford mounted without heat!

They are free standing aluminum and they run COLD! In HOT and I'm talking true hot weather the intake is ok.
But anything below about 70-80 degrees and the aluminum intake dissipates heat so fast the fuel drops out of the mix in normal driving! Not something you will want in your J10. You can tune it to run WOT and drive hard, but off idle tip in and normal cruise SUCKS. I tried everything I can or could think of.  I had stumbles, poor idle etc, It royally P.O'd me big time.

  If you are running a clifford or any other open plenum I would recomend you install heated water to it and have it run through the intake. Should make it much easier to get a good tune and be much more fun to drive!  What I wish I would have realized or looked for is that you can get 4bbl carb spacers that are heated! My intake was ancient so it did not have water provisions. 
  Frank has it now. I don't think he is particulary in love with it either!

Mark Price
Morgantown, WV 26508
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
"I realize that death is inevitable.
I just don't want to be around when it happens!"

----- Original Message -----
From: "Jesse" <j2sax@xxxxxxxxx>
To: amc-list@xxxxxxxxxxxx
Sent: Monday, March 2, 2009 5:05:23 PM GMT -05:00 US/Canada Eastern
Subject: [Amc-list] WHat year 258's get water intake? Real world advantage?


You know, most of my 6 cyl AMC's have been mainly Summer use cars and all have non-coolant intakes. I am geting ready to switch out the 258 in my J10 5 speed with an older 258, however, I will be using this for the remainder of the cold weather this year (in MO it can go either way!) 
 
What year did AMC introduce the Coolant intake?  Is there that big a difference in warmup, or is that mainly for emissions?  (and potentially one more source of leaking!)  
 
Of course, I may go ahead and put on the Clifford with 4 Bbl that I have making this moot, but I am have not made a final decision (I may also go with the MC 1.08 because I really like the way they run on the 258, but I think my mileage will improve with a similarly sized 4 Bbl.  )  
 
I am going to be building a stroker 6 for this... maybe going with EFI later.  
 
Too many good options out there!  
 
Have a great week,
 
Jesse
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