On Wed, 31 Oct 2007 11:09:30 -0700, email@example.com (dan baker)
Lets get a few thing straight here, a K&N is not going to improve your
MPG with a fuel injected engine because its mixture is controlled by
ECM. In theory with a carb it might marginally because the mixture of
a carb is effected by the pressure differentail accross it. (unless it
makes a lean engine leaner and reduces efficency more) Also your
engine in your 02 is tuned to intake and you disrupted that tuning.
Next on the exhaust. Duals typically reduce MPG around town because
you do not want exhaust to escape too quickly from cylinders at lower
RPM's because it is the pressure for expanding gases that drives
piston down and makes power and you do not want presure to drop too
quickly. At WOT you might gain a few HP from filter and exhaust at
higher RPMs but at the expense of lower RPM efficency. Again, modern
engines are well tuned on intake and exhaust from factory and if it
was that easy to gain usable HP and MPG they would come that way
because Detoit is under pressure to get good MPG for fleet averages
with LD SUV's. Your money and effort would have been better spent on
higher octane fuel because that engine needs more than 87 to do its
best. It has a generation 3 knock control system that keeps you in
ignorant bliss by masking/quelling spark knock before you hear it by
retarding spark (you really cannot use the old adage that if it is not
knocking, it is being feed properly) but this reduces MPG and power
potentail. BTW, all EPA MPG tests have long been conducted with 93
octane fuel (it is clearly required in test proceedures) but they are
not required to tell you that on stickers. You may not need 93 all the
time but likely atl least 89 or 90 to do its best because 9 to 1 plus
CR and 87 does not work unless you retard the spark at times. The
"only" reason that there is a knock sensor on your engine is tolet it
tolerate 87 octane fuel and limit consumer complaints about fuel knock
while stealing efficency. One more thing octane requirements increase
with tempature so you need more octane in summer (which means more
aggressive spark retarding with 87) than winter. Because of this I
tend to use 93 in summer and 89 the rest of the year. Try it and you
might find that MPG gains may more than offset extra fuel costs (it
does for me) but even if it did not I still would use it myself
because my cars run better on 89 or better fuel.
This is among the biggest pile of horseshit I've seen
on usenet in years. The *best* exhaust at all rpm's
is a tuned exhaust.
If you ever gave a real thought to the geometry of an
engine crankshaft and the amount of power a piston can
impart to the crankshaft near the bottom of the stroke
you'd put your head between you knees and throw up for
having written the above.
After which there's more embarrassment once we start
discussing all 4 of the strokes.
The cost analysis performed by manufacturers as a matter
of routine is way beyond the scope of your abilities.
"It might seem odd that fuels with higher octane ratings
explode less easily, yet are popularly thought of as more
powerful. The misunderstanding is caused by confusing the
ability of the fuel to resist compression detonation as
opposed to the ability of the fuel to burn (combustion)."
Read the entire page over and over till you understand it.
> It has a generation 3 knock control system that keeps you in
Some day you might want to attend a nearby community college
of your choice and take a few courses on things like the
That's probably going to be too difficult for you but you
might consider some courses involving the theory of operation
of internal combustion engines, and the calculation of
horsepower of the theoretical engine.
Please don't even try to tell me you've taught such a course.
The reason for a knock sensor is to allow the engine the earliest
possible ignition timing for a given set of circumstances.
snipped balance of embarrassing comments.
I see why your critics are so adamant. Do the world a favor
by avoiding the urban legends you promoted in this posting
Yes your newgroup name says it all. "NONSENSE" because that is what
you usually post. That engine is tuned to expect certain intake and
exhaust tuning for best efficency. (intake lingth, runner size, cam
timing and so on) and troll mechs like you think you can get out a
torch or saw and cut off exhaust and improve efficency. Aftermarketers
are getting rich of you guys and laughing to the bank. What works best
on a drag strip or race track on on street for city driving is to
completley different matters but narrow minded troll such as yourself
does not understand this. BTW a tuned exhaust is going to do best at a
certain RPM range and suck at others and the only thing tuned about
aftermarket exhaust is the name because they are not tuned for street
other than maybe noise tuned and this noise tuning lets them call them
Actually "nonsense" is what I often reply to. Your blather doesn't
even achieve the higher nonsense status, it is merely horseshit.
You continue to show what an idiot yo really are.
Every engineering design decision is a compromise. Talk to the
people who actually design the stuff rather than taking the word
of someone just as ignorant as you in a hot rod magazine. Here's
another hint. The girls are there to distract you from the real
facts. Keep ,looking at the girls. Do what you do best.
Bwahahahaha. Yer mama wears combat boots. That's the kind
of discussion you seem to understand.
You've been eating the yellow snow again and the brain damage
shows. No wonder they call you the snowman.
As one feller said about someone else just like you,
"he knows what he knows......"
Just so you don't get the wrong impression, a tuned
exhaust is supposed to suck! :-)
You still think that fuel with an octane rating of
89 has more energy than fuel with an octane rating
You don't understand internal combustion engines.
You're one of them thar "parts changers", not a
mechanic at all. Usenet would be better off without
And now I'll restore my entire posting, the one that
you cut all but one sentence out of, below. It is best
if the archives show you to be the dunce you are all
in one spot.
No the nonesens is your because you know more than engineers that
design, tuned and built them
Yes you do show how like knowledge you realy have about IC engine
theory and operation. You knowledge is twist the key and step on gas
and use cheapest gas you can find and also take a torch to exhaust and
tune it too.
Actually the engineering done on those is for best overall efficency
until nuts like you get in there with wrenchs and torches and fix it
and then they wounder why MPG sucks at times. You just cannot begin to
understand that caputring energ from expanding gasses fron a
controlled burn make a engine run, do explosions nor does retarded
spark from retarded operates using low octane fuel help either but
given your limited mental capacity you cannot begin to understand
this. Real knowledge scares the snot out of you.
Again comment you would expect from someone as impared as your are
Aftermarketer get rich off of fools like you because they want to
beleive that there is a magic fix for engine to raise MPG a lot and
boost power too. If it existed, it would come with it.
Yes you really know nothing other than what is in your troll
Tuned duals that they market with a lot of hype do suck on street
unless you drive with foot in floor and wind it to 5000 rpm all the
time (maybe you do?) That engine expect a little back pressure but you
are smarter than Detroit it seem who has a lot on the line for max
engine efficency while you just have your mouth and ego on the line. I
would love to see a dyno test before and after of some of these mods
(one that is not WOT max RPM but street related at lower RPMs and fuel
flow is monitored too. You would be in for a surprize because it does
not help there
You realy are clueless are you. Such a dumbass. It is not about energy
ding a ling, it is about resistantance to preignition and burning rate
so that peak compustion temps and pressure are reached at the correct
piston/rod to crank angle for maxium power transfer and efficency. Low
octane fuel that you love and think is the holy grail requires serious
retarding of spark to lower peak pressures to prevent mixture form
detonatiing (this is what octane does fool) Whay am I explaining this
to such a clueless fool though?
No you are the parts changer fool. I actually studied IC design and
theories many years ago in college when persuing engineering degree
and even wrote a few papers on it to improve efficeny (got 'A's" on
them) I did this to expand my knowledge of a hobby. I am one of the
few here that FULLY understands thermodynamoc priciples of a engines
operation and efficency and purpose of octane relative to CR,
tempature, load, altitude and humidty. Since you do not understand it
is scares you so you try to discredit what you do not undewrstand. YOu
do not come here to help, you come to cause trouble and satifiy the
insecurity that you feel about your own limited abilties. Maybe you
should get a diesel as there is only one fuel for it so you cannot get
that part wrong.
Knock yourself out as I know this is how you get your kicks. So sad...
I don't know if this helps but on my '95, the gas tank is 20gal(3.79) 75.8L (I think that's about right).
On 11/3/07 5:27 PM, in article 1rrdje0rek7o6$.11fdu440g54q6$. firstname.lastname@example.org,
Wasn't nonesens (nonsense) sticking up for or defending snoball a few
months ago? I've been away so I missed the part where snoball pissed him
off but we all knew it was inevitable. Snoball enjoys condescending
everyone even when he's wrong and nonsense is the type to be pissed off
at everyone reguardless. Too funny.
SBJ: Dumb brake question
SBJ: Front wheel bearings-2000 Blazer??
SBJ: Snoball Defense System v1.01
<huge snip of mindless bs>
This mindless bs is too good to snip.
With all the crap the Idiot post's this slipped by.
We have not heard this claim in about a year at alt.autos.dodge trucks. At
that time the Idiot did what he always does when pressed to answer some of
his bs, he ignored the question.
So Idiot, how about you tell us where you were "persuing" the engineering
degree where you "(got 'A's" on them)". Or are you going to duck the
http://www.fueleconomy.gov/ (has not let me down yet)
Don't start thinking now you're gaining fuel mileage simply by throwing
a K&N in and someone in a spam email told you it would give you extra
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