does removing emission stuff effect the engine

[LTDMan83]

Umm....Just removing the emissions equipment is'nt a good enough reason to dyno it.The butt dyno proves it to me though.

[gadget73]

If the emissions crap is working properly, it won't actually do anything to negatively affect engine performance or function. The cats, when not clogged, involve a pretty minimal restriction. The stock exhaust beyond the cats is more of a restriction especially on a single exhaust car. The air injection doesn't do anything but warm the cats up faster. The smog pump is a pretty minimal drag, but most people remove it either because its going bad and making noise, or just to clean up engine bay clutter. The EGR doesn't hurt performance either since its only open at cruise, and not WOT. Same thing with the fuel tank vapor canister. Thats really the only emissions junk on the car. Most people have problems they associate with the smog controls because of vacuum leaks on the solenoids or lines. Removing this stuff usually involves capping off the lines which causes better performance because its not leaking anymore. Properly working vac lines will also do the same thing.

[cld783]

go look up how much hp removing your ac gains you, maybe 2 hp? i didnt only remove emissions i removed the ac along with everything else so therefore i have one small ass belt compared to 2 running running only the alt, power steering, crank. i dont need to dyno my car to know that it increased power its just common sense.. how much it gained? probably not much but i didnt say it increased like 50 horsepower or anything either.

agreed?

[Grand Marquis GT]

go look up how much hp removing your ac gains you, maybe 2 hp? i didnt only remove emissions i removed the ac along with everything else so therefore i have one small ass belt compared to 2 running running only the alt, power steering, crank. i dont need to dyno my car to know that it increased power its just common sense.. how much it gained? probably not much but i didnt say it increased like 50 horsepower or anything either.

agreed?

The biggest diff I found, was the car had a little more power at cruising, and tackled the hills easier... Because less parasitic gain...

[AOD]

Umm....Just removing the emissions equipment is'nt a good enough reason to dyno it.The butt dyno proves it to me though.

CLD is on track, maybe 2hp is something realistic, but saying you can 'feel' a difference in the seat of your pants is rather subjective.

Eric S. ran a back to back dyno run with a cold-air intake and the stock intake and had identical rear-wheel horsepower output. That is a true test, not a butt test, and I'd be willing to be 9/10 people who put a cold-air intake on their car say it 'feels faster' then with the original.

Catch my drift?

~Adam

[cld783]

CLD is on track, maybe 2hp is something realistic, but saying you can 'feel' a difference in the seat of your pants is rather subjective.

Eric S. ran a back to back dyno run with a cold-air intake and the stock intake and had identical rear-wheel horsepower output. That is a true test, not a butt test, and I'd be willing to be 9/10 people who put a cold-air intake on their car say it 'feels faster' then with the original.

Catch my drift?

~Adam

true that.. i have cai as well so im sure its a combo of all the things that i noticed.. just emissions you probably wouldnt notice much at all.

[gadget73]

Eric S. ran a back to back dyno run with a cold-air intake and the stock intake and had identical rear-wheel horsepower output. That is a true test, not a butt test, and I'd be willing to be 9/10 people who put a cold-air intake on their car say it 'feels faster' then with the original.

~Adam

But did he put the sticker for the CAI on the rear window? If not, the CAI was not activated and it produced no extra power. With the sticker installed, it produces approximately 2.5 extra horsepower.


I read somewhere that it takes roughly a 10% gain in power to actually feel a noticeable difference, so thats 15 horsepower. You probably "gain" as much by the weight reduction of pulling parts as actual power gains.

[interceptor1985]

thats why we removed the ac on the cop car......power to weight and the new engine is going to be a 347 vortec supercharged with AFR heads and still no ac.

[LTDMan83]

Eric S. ran a back to back dyno run with a cold-air intake and the stock intake and had identical rear-wheel horsepower output. That is a true test, not a butt test, and I'd be willing to be 9/10 people who put a cold-air intake on their car say it 'feels faster' then with the original.

Catch my drift?

~Adam

WTF does that have to do with what we were discussing in this thread?The fact that Eric S. dyno'ed his regular CAI and saw no difference,and I dyno'ed my custom made CAI (which has been sold) and and saw 10+HP at 4000rpm,only says that Eric S. dos'ent know what he's doing as far as making CAI's.We allready disussed this on CVN months ago,I'm not going to get into it again.

[Grand Marquis GT]

Sure, AOD was being abrasive.

Dyno numbers may be the death of us all, but it's all what feels good. Usually, that feeling faster is just improved throttle response, and sound

[87mefull]

If your putting a standard cold air intake on a stock 5.0 sefi motor, its not going to make a difference but looks better than the stock airbox. A CFI motor might benefit from a cold air intake but I don't know how restrictive the throttle body and intake manifold are. I tried it on my completely stock 130k sefi engine, didn't really notice anything. If its a really good intake and the filter is mounted outside the engine compartment, maybe it will but I don't know. It will sound like you have a supercharger on a cold day though, which nobody every expects to hear from an old panther.

Take a look at the 50mm throttle body and the egr spacer, its so pathetic that the stock airbox can outflow that setup. Bolt in a true cold air intake with the complete HO upper intake, then you have something on a lopo motor. I noticed a nice difference with a 1inch intake spacer, HO upper intake, HO throttle body, and a bored out to 63mm panther egr spacer. Im still using the stock airbox and noticed a little difference in low end torque and a much stronger powerband.

You can change the valve cover gaskets, the pcv valve, almost all the vacuum lines in the engine, replace injectors and much more once you remove the upper intake. Just be careful with wiring and vacuum lines, I got a wire for the IAC valve stuck under the driver's side valve cover.

Also, any increase in airflow is only going to help a little in the lopo, the e6 heads are a huge restriction on these. Stock e7 heads produce an easy 15-20hp increase on a lopo motor and these are considered restrictive heads on a stock mustang motor.

[Jason_GMQ91]

My car still have air pump and emission valve. Because in Vancouver, BC is the most SRICT emission.


Jason

[gabegt90]

when can you get historic plates? even when your cars an 80 you still have to do emission's?

[cld783]

when can you get historic plates? even when your cars an 80 you still have to do emission's?

thats a very good question..

[gadget73]

Depends on the state. You'd need to check your local rules.