|
Mine doesn't have anything on the air cleaner so it
looks like I'm ok!....I guess I'll decide about the exhaust when I get there,
although now you got me to thinking that I should remove the manifold now rather
than in the spring, so that If I need another one I will have the whole winter
to get one rather than rushing around in the spring!
----- Original Message -----
Sent: Wednesday, November 29, 2006 5:41
PM
Subject: Re: IML: 440 compression??
Andrew,A lean-burn motor has a engine management computer, mounted on the
air cleaner assembly, (with lots of wires) and Chrysler Proudly announced it
on the top of the filter housing.I think this GEM came around 74-75. I had one
on my 78 NYB. I removed it, and used a 74 NY engine harness, distributor, and
coil and ballast resistor. As far as headers go, I would never put headers on
something like an Imp, or NY'er. That's my opinion, however the dual exhaust
works great.You may find the manifold(s) are cracked, about in the center,
(been there had that), in which case headers are an option Although I don't
know what would fit, without the HEAT TO BEAT TO FIT procedure.Ya'll have a
nice day, Dave.
--------------
Original message --------------
From: "Andrew A."
<canafornia@xxxxxxxxxxxx>
I'm not planning to touch the internals of my
engine for a while as it runs super smooth, is low mileage, and I just have
way too many more pressing projects to warrant having still another motor
sitting on an engine stand in the garage...This winter it willl be bodywork
and paint which includes redoing the vinyl top..I have to take the exhaust
manifolds off as it does have a major exhaust gasket leak on the left side
and so am planning to go to dual exhaust and flowmasters at the same time..I
figure I'm paying for the gas so I wanna hear it burn! ;-)...Are there any
headers available for this year or should I just leave the manifolds as they
are?..
What exactly was a LEAN BURN car? how can you
tell? and how do you remove it?...I have a Canadian car, so I don't
know if that was an option up here or not
----- Original Message -----
Sent: Wednesday, November 29, 2006
11:22 AM
Subject: Re: IML: 440
compression??
It sounds like you have a healthy engine, but as far as raising
compression, I think you can get the performance improvements, without
messing with the engine too much.I'm not sure if you have a"LEAN-BURN"
motor, but if you do, that goes first. Next a dual exhaust system, I had
a78 NYB, I used 69 440 RoadRunner mufflers with 21/4 inch tail pipes.Then
a little carb mods.We went 1 step further, and changed the rear axle ratio
to 3.55 .It wasn't a rocket-ship,but it sure ran good, and could still get
13-15 mpg.Raising the compression on your engine won't help much, unless
you change the cam, carb, and do the above. Don't forget what your
driving.Ya'll have a nice day, Dave.
--------------
Original message --------------
From: "Andrew A."
<canafornia@xxxxxxxxxxxx>
great thanks!..I figured it was about
normal as all cylinders are within 5PSI of each other and the motor runs
smooth as silk but I just figured I would check with those "in the
know".....What needs to be done to raise the compresion to the level of
the high perf. 440's?..is it just the heads that are different or are
the pistons also different from my 1975 as compared to the late
60's 440's?....Also how much more power should that give
me?...
----- Original Message -----
Sent: Tuesday, November 28, 2006
12:14 AM
Subject: Re: IML: 440
compression??
compession ratio was rated a 8.2 to 1, but its more
like 7.7 or so. 125 PSI
sounds normal.
.
>From:
"Andrew A." <canafornia@xxxxxxxxxxxx>
>>Just
wondering if anyone knows off hand what the normal good cylinder
>>compression PSI is for a 1975 440?...Usually I'm used to
V8's being in the
>>145-160 range, but all my cylinders in
my 1975 440 are between 122-128..I
>>understand that these
are low compression engines but have no idea what is
>>considered "low compression"...Is that normal for these
engines?
>
----------------- http://www.imperialclub.com
-----------------
This message was sent to you by the Imperial
Mailing List. Please
reply to mailing-list@xxxxxxxxxxxxxxxx
and your response will be
shared with ev eryone. Private messages
(and attachments) for the
Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx
To
UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm
|
Back to the Home of the Forward Look Network