lol sadly some people believe that. i dont think it really gains anything other than clearing up some space. the neato trick ive seen is that dumb kids pull a few vacuum lines so the car will idle rough and then they can tell everyone they have this huge lopey cam thats making an extra 100 hp when in reality their hp and fuel economy just went right down the toilet. some real brilliant people out there these days

 

You serious? People do this?

 

alot of the honda boys (or should i say girls) do it, a guy i used to be friends with did the same, as well as true dual 2.5'' straight pipe exhaust on the car which took all the backpressure away and he pulled the air filter completely off using the logic that he would get more air. its honestly the slowest mustang ive ever ridden in, what happened to the teenagers that actually used to do real mods for power, now weve just got idiots that want to be loud and flashy. it makes me sick to my stomach sometimes.

and to get an idea how slow his mustang was with these "awesome" modifications, my 94 f150 with the inline six outran it from 0-60 and was even until about 80-90. shame he ruined a decent car

 

Now I know you're lying! Nobody is stupid enough to take their air filter off . What year is his stang? Is it a 6 or 4?

 

its a 2004 4.6L v8 stang. i think somethings screwed up in his rearend since he tried to do a burnout in reverse and we heard a big bang. still drives though, but i think somethings amiss in there. i wish i didnt sell my 94 f150 with the straight six, cause now im trying to find myself another one for a daily driver lol, then i can sell my current truck and buy myself a bronco or older ford pickup for a toy.

 

Something has gone horribly wrong with that mustang. I've never heard of a stock 300 beating -any- V8.

 

me either lol, being a 5 speed truck it had some get up and go but it was no rocket ship. my cadillac opened a total can of whoopass on the stang as well, which i dont think it really should have. and in my opinion a stock 300 in a truck is better than the 302, just my opinion which is why im getting rid of the 302 truck to buy a 300 5 speed one again as soon as the tranny sings its last song, which its about to.

 

Believe it or not, I've seen many a carb or otherwise with no filter due to the bad logic

 

A 300 is a better truck motor, yes, I agree with you there. I was just saying a 302 will blow the doors off a 300 if everything is equal. A 300 will kinda-sorta-hang with a 302 at the beginning but that's all.

What motor is in your caddy? What year is it?

I guess these folks never stopped to think, "Hey, maybe there's a REASON there is a filter on here! Let's think about this.."

 

well it was the 4.6 northstar engine in a 96 caddy seville sts. with some intake/exhaust work. somewhere north of 300hp but keep in mind it was in a 4000 plus pound car and it made its peak power around 6k rpms, the last gm product i will ever own, since the head gaskets went south on it

 

De smoging an engine can free up more power.
Dumping the EGR can increase vaccum & raise combustion chamber temps.
What does this do Dr. Yoo-Hoo? Oh it improves in chamber vaporization of fuel, Helps burn the oil off the plugs in a 200K engine, allows the fuel injectors to increase the amount of fuel going since the given amount of air has increased. Last I checked more air and fuel mean more power.
Dumping a smog pump can gain you 1/2-5 hp depending on application. These are facts.
Yes gittin rid of the aircleaner can give you more power too. Look at a drag car. On a street car its f-in retarded.

Ive De smoged several engines from the 80s and 90s. I know this works. My escort is snappier and gets about 2 mpg better mileage. My uncles 80 F100 ran alot better after it was desmoged. Tossed EGR on several other vehicles. Just make sure to button up all the loose ends.
You can argue if you like but do the math and research first please.

 

I have, and you are right.
No one is arguing with you.

However, when this smog junk is hacked away with total disregard,
ignition timing and engine temperature get thrown out wack.
(Don't get engine temp. confused with coolant temp., they're different.)
With this in mind, the timing needs to be re-curved to accommodate
for this faster hotter burn of the fuel mixture.

I assume you've done the math and research on this too, right?

 

Yes, EEC-IV will self correct both mixture and timing to control detonation.
Combustion chamber temp it will not adjust for. However I have seen no effects other then an end to oil fouled plugs. EGR is estemated at lower combustion temps by 200-300 degrees F. On an aluminum head or an engine that was designed prior to the advent of smog controls I can find no evidence of any possible harm. Pre smog heads will accept the higher temp as they were designed to take it. Aluminum heads carry the heat away at a higher rate and transfer the thermal energy to coolent more effectivly. Hence, the usage of aluminum heads in high compression and forced induction applications.

Cats can be cut off too you know. Just have to be done correctly.

 

Ah, I see.
I keep forgetting that what I am working on is becoming a dinosaur.
I need to make, and check all of these adjustments.
I had to have my distributor spun and re-curved,
then I had to monkey with my vacuum advance.
Turns out, I was chasing the wrong problem all along,
but I'll tell ya, I learned a hell of a lot about my ignition system along the way.

Sometimes I envy all of the technology that a modern engine is equipped with.
Mostly, I am happy that my wrench and I are in charge of things.

I'm rambling, I wanna know how "Penrider" is coming along.
I hope we didn't kill his thread.

Murph.

 

I have No intention of De-smogging this truck. I happen to believe that within reason, if Mr. Ford put it there it needs to be there.
It make take me a while to get this straightened out, but I will.
I think that a lot of smog equipment Does rob power, but the entire engine system is tuned to run With the smog stuff therefore the engine won't run right without it.
Properly Done, the smog system can be removed. Better mileage(1-3mpg) and Slightly more horsepower(5-10hp maybe) Can be achieved after Proper Re-tuning(no simple task). Anything more from simply tearing out parts is BS no matter what anyone says.
Adding a Free-Er flowing muffler(must still have Some backpressure), a higher flow air filter, and better ignition parts actually provides better results on an otherwise stock engine.
I will check the cam if I can't find anything else wrong(I dislike tearing into things like the valve train unless I Know it's bad).
I have to believe that the EGR system Must be a large part of it because it's so jacked up right now.
I don't mind fixing things like this, the truck IS 22yrs old.
I just can't figure the Significant lack of power while still having a good start, smooth idle, and no idiot lights on.