cold air intake on a ghia - Ford Forums

MustangNicko · 06-04-2003, 06:07

I have an EF2 ghia and decided to take some advise from the guys that have direct cold air intakes on their cars. I used the 2 x 2.5 inch pipes tied together for this. (note: i am still using a standard panel filter in my air box). I cut a hole out of the side of the air box to fit them in, pushed the piping down past the engine and brought it around to fit through the housing of my fog lights. I had to remove the plastic wheel arch which sheilds the electrics of the headlights from the wheel to get the piping through. I didnt want to cut a hole in the plastic wheel arch sheild.

The sound i have get now from the engine sounds like a deep drone which sounds pretty good compared to the standard high pitched drone. Its weird, when i plant it in first, it sounds deep up until around 4 grand then returns to its usual highpitched self. (note: this happens in 2nd gear aswell) I have noticed a definite improvement on fuel economy as when i hammer the car around it usually drinks a shitload of petrol according to the computer. I havent noticed much more in performance though, yet the revving feels heaps more cleaner, until it hits 4 grand. The car feels like it pulls heaps more when it hits 4 grand aswell... i know peak torque could be up around thereabouts... could the new air intake piping cause less power?

Can anyone give me an answer to why it would returned to its high pitched self once above 4 grand??

EDXR8 · 06-04-2003, 06:35

Cold air intakes will give you a little power over the stock setup, but will mainly just give you throttle response. Don't really know about the sound difference, it really shouldn't make any difference to the sound.

Also, you will see a much better improvement when you get rid of the stock air filter and putt in a K&N panel filter or something similar.

MustangNicko · 06-04-2003, 07:28

anyone know why there is a sudden sound difference after 4000 rpm? anyone know why theres a sound difference at all?

Stevo · 06-04-2003, 16:35

No, thats reallyl wierd.. I put the au xr8 snorkel, and k&n filter , but didnt modify the airbox.. noticed a bit better throttle response.. but didnt change the sound.. however car is already loud with extractors and zorst.. , so prolly wouldnt hear any changes anyway

maybe its air noise you can hear??
its an odd one, ill give you that :)

Thanatos · 06-09-2003, 02:19

Quote:

Originally posted by MustangNicko
anyone know why there is a sudden sound difference after 4000 rpm? anyone know why theres a sound difference at all?

The only thing I can think of would be something to do with the dual runner setup.

I think the manifold switches runner lengths at about 3700rpm, so maybe this has something to do with it?

Cheers,
Dave

Rollin · 06-09-2003, 02:33

Quote:

The only thing I can think of would be something to do with the dual runner setup.

I think the manifold switches runner lengths at about 3700rpm, so maybe this has something to do with it?

you hit the nail on the head - MustangNico do you also have an aftermarket exhaust? you will notice that the exhaust note changes at the same time the intake note changes - wierd hey...