AMC-List Digest, Vol 3, Issue 61

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Today's Topics:

   1. Re: 70 Ram Air (John Elle)
   2. Re: Front Springs... (farna@xxxxxxx)


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Message: 1
Date: Sat, 29 Apr 2006 19:39:48 -0700
From: "John Elle" <johnelle@xxxxxxxxx>
Subject: Re: [AMC-List] 70 Ram Air
To: mail@xxxxxxxxxxxx
Message-ID: <000001c66bff$5d2a65d0$e7dd0d82@john1>
Content-Type: text/plain;	charset="us-ascii"

 
Armand
Snip
Date: Saturday, April 29, 2006 04:57 PM
From: Armand
<mailto:aje1@xxxxxxxxxxxxxxx?subject=%5bAMC-List%5d%2070%20Ram%20Air>
Eshleman <aje1@xxxxxxxxxxxxxxx>
I have seen a few cars with the ram air hoods on them but I've
never been inside one or looked close enough to figure out how
the little doors in the  scoops worked. I was sitting here the
other day and got to wondering how that magic works? Is there
a switch on the dash or a lever or something that actuates the
vacuum and closes the little doors????
Thanks,
Inquiring minds want to know,
Armand
SNIP
 
Attached under the hood is a plastic plenum that is designed to cover
the bowl on the air cleaner and serve as a duct works from the two
openings on the hood. 
Where the two openings blend into one with in the duct work there is a
plastic flap controlled by a vacumm solenoid or motor depending on who
you talk to. The vacuum line goes to a tap on the intake manifold just
behind the carburetor of the car on the intake manifold. Manifold vacuum
holds the flap closed, with out manifold vacuum the vacuum solenoid has
an internal spring function that will allow the flap to open thus giving
fresh air to the engine. 
When you accelerate, manifold vacuum goes toward zero (0) and the flap
will open. When your speed levels out, manifold vacuum will rise towards
17+inches of mercury and the flap will close again. Operation is fully
automatic and being so conforms to smog criteria of the year the engine
was certified. 
John. 


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Message: 2
Date: Sun, 30 Apr 2006 04:03:58 +0000
From: farna@xxxxxxx
Subject: Re: [AMC-List] Front Springs...
To: imfatdad@xxxxxxxxx, amc-list@xxxxxxxxxxxx (AMC-List)
Message-ID:
	<043020060403.25310.4454372E0007FC3D000062DE21602806510E029D0E00@xxxxxxx>
	

Why go with stiffer springs for a driver? The early to mid sixties cars are sprung really soft compared to more modern cars. You can drive it fine with the stock springs, I still have the stock springs in the front of my 63 Classic. The 4.0L and AW4 combo is just a bit lighter than the 196 and M-35, believe it or not -- by 50-60 pounds. But in hard turns and at higher cruising speeds (over 55) it could still benefit from a bit more stability that comes with slightly stiffer springs. The high mounted springs are a lot more roll resistant than low mounted springs, so 10-15% stiffer also increases roll resistance. In most cases you'll notice more roll resistance from that 10-15% stiffer spring than from a sway bar. I did with my 63 American. The sway bar really doesn't help much except in the hardest of turns. I plan on installing springs that are 10-15% stiffer and about an inch lower. The front sits at least 1/2" higher than it did with the 196/M-35!

--
Frank Swygert
Publisher, "American Independent 
Magazine" (AIM)
For all AMC enthusiasts
http://farna.home.att.net/AIM.html
(free download available!)


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End of AMC-List Digest, Vol 3, Issue 61
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