My Dak (4.7) runs a lot better on cool,dry days. No
mods,except for cat-back exhaust. Gonna have to do the
IAT mod. I bought the plug for it,but haven't done it
yet. Do have chrome center caps though.
Steve P.
--- Dan Kramarsky <dkramarsky68@yahoo.com> wrote:
>
> so,
>
> Is it just me or does every Magnum engine seem to
> totally rock when the engine is cold.
> Like when the temperature gauge reads exactly "C" or
> a teeny tiny bit past "C".
>
> [ Engine block would be between 100F and 150F at
> this point. It has not even had the
> chance to get to regulated temp of 180F ( i have
> the 180* t-stat mod installed ) ]
>
> But after it warms up to operating temp, it seems
> that a little bit of torque has been
> lost somewhere.
>
>
> Details:
> When I left my work @ 8pm this evening the outdoor
> air temp was 61F and humidity was 70%,
> I discovered IT WOULD CHIRP ON THE 1-2 SHIFT -AND-
> THE 2-3 SHIFT.
>
> But after driving around for 5 minutes it wouldn't
> do it as much. And after 20 minutes
> it hardly will do it. By this point the engine temp
> was right at 180 to 190F. This is
> apparently the optimum range according to this
> website and other Dakota websites.
>
> And the outdoor temp did change that much. After I
> drove to my home about 20 minutes
> away, it was still about 64F and 74% humidity.
>
> So whats happen here?
> Are the pistons and valves doing a better job when
> the engine is cold?
> Is the PCM adjusting spark advance and fuel ratio
> that much?
>
> I mean it like a have total different truck when its
> cold. By 'seat of the pants'
> measurements, it feels like about 25 FT/LB of more
> torque when its cold.
>
> Details on the truck are in my sig. But I do have a
> home-brew 3" diameter cool air
> intake from right in behind the grill area to the
> stock airhat which has a K&N Filter in
> it.
>
> No other mods. Engine was 169,000 miles and
> feels like it brand spanking new.
>
>
> thanks
>
>
>
>
>
> Dan K.
>
> 1992 Dakota Club Cab LE with A/C, Cruise, PS, PB,
> PW, PL, 3.55 rear, 5.2L V8 and a 46RH.
> Current Mods: Cool-air intake, 180* T-stat,
> relocated IAT, DynoMax Super Turbo exhaust, Autolite
> Platinum plugs, 8mm wires
>
> http://static.flickr.com/42/84856795_c18903d10f.jpg
>
> Plans: Mopar Performance PCM (ECU), March pullies,
> upgrade to 3.91 rear gear, replace viscous fan with
> electric fan
>
>
>
>
>
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This archive was generated by hypermail 2b29 : Sun Jul 01 2007 - 21:47:16 EDT
