Thread: Make A 4" Fenderwell Intake (FWI)[*]

Fabrication and installation of a Fender Well Intake (FWI) for a Pontiac Grand Prix, has been added to the "How To" section and can be found here

That'll be great. I just posted it like that now for some content, and for safe keeping.

Originally Posted by J_Ferguson

I used this set up to build my FWI
is a awsome write up and thanks Street Wolf
I have a CIA intake right now but spring time
i switch back ..I did not use the 4" pipe thought
as i did not want to cut out the piece for the fender.
John
Voted

what size pipe did you use and did you have trouble installing without cutting anything. I really don't want to hack away at anything on my 00' gp gt.

There are five screws, three in each fenderwell, and two underneath holding the fenderwell to the fascia, then two 10mm bolts on the inner fenderwell, by where you put a FWI. Take out all the pushpins on the lower fascia, and the 7mm bolt right in the middle of the bumper. thats it, easy as that.

*edit: don't forget the push pins that hold the radiator cover plastic to the fascia either, and just pull straight out. let me know if you have more questions.*
..and the white triangle piece stays.. it just slides forward. It took me like a half hour to realize that. haha
Dont forget to unplug to fog lights!!!! Dont touch thr bulbs with your fingers because the oils on your hands will make the bulbs burn out.

Here it is C&Ped from ClubGP

Originally Posted by GeddyLee

When I made my similar fender well intake setup. I actually moved my AIT sensor down to where the hole in the fender well was and tapped into the PVC there for the sensor intake readings.

Here is a picture of mine when I did have it in there. I cut through the flashing to get to the tap I created and Gorilla glued a rubber gromet into the PVC so I could remove the sensor without issue when necessary.

did you just extend the wires for your AIT? or did you buy an extesion wire for it? I guess I'm asking can I just splice my AIT wires to extend them for a FWI?

Is there any way to do this with the 4" without removing/cutting the brace in the fender? If not, whatd you use to cut it? I've had a hell of a time trying to get the back bolt to take it out and just cant seem to get anything that fits back there

Originally Posted by High Rolling GTP

Is there any way to do this with the 4" without removing/cutting the brace in the fender? If not, whatd you use to cut it? I've had a hell of a time trying to get the back bolt to take it out and just cant seem to get anything that fits back there

on my setup , i did not cut the inner fender brace cause i used a conical air filter which is about 4 inches high part number 8162 from Spectre , they sell it at Autozone and it fits just perfect . instead of the 4 inch tubing i used 3 inch . i know that 4 inch is bigger and has a better flow , but a 3 inch is smaller and consecuently faster air flow , my FWI intake roars very fukng loud

Thanks for the post! Only problem is i checked this about 5 minutes too late, lol. Just got it all fitted in and finished! So im not sure how all you people with 9" cones have it fitted in as you did, but from your pictures i could not get mine in anything like yours! Luckily with a lot of cussing and trying to make everything fit in, Ive completed it, though it appears different from the pictures and i had to use the other half of the 90* angle down in the fender well.

For a note to those who dont want to cut the brace, you dont have to. I just unscrewed the one inside bolt(the one closer to the engine, not the fender one) and pretty much just bent/forced it it out towards the fender. As another note, i tried removing it and im not sure if there is an easier way, but that back bolt was a b**** to get to. Then after i finally managed to get it off, i noticed the little triangular clip thing and couldnt figure how to remove that so gave up on that idea. I'm sure it's easy to remove just didnt feel like searching.

Now that i've typed a essay here.... Good write up streetwolf, and good luck to those who try this in the future. Trying to use a smaller cone might be easier, though it doesnt look as bad ass, might save your breath on some cursing

Originally Posted by tjvdubsport

on my setup , i did not cut the inner fender brace cause i used a conical air filter which is about 4 inches high part number 8162 from Spectre , they sell it at Autozone and it fits just perfect . instead of the 4 inch tubing i used 3 inch . i know that 4 inch is bigger and has a better flow , but a 3 inch is smaller and consecuently faster air flow , my FWI intake roars very fukng loud

Nicely done!! Where did you get those 3" pipes with the angles from?

Originally Posted by tjvdubsport

on my setup , i did not cut the inner fender brace cause i used a conical air filter which is about 4 inches high part number 8162 from Spectre , they sell it at Autozone and it fits just perfect . instead of the 4 inch tubing i used 3 inch . i know that 4 inch is bigger and has a better flow , but a 3 inch is smaller and consecuently faster air flow , my FWI intake roars very fukng loud

This is a totally nice setup you have here. I have a question. I cannot do a similar setup on my 98 gtp cause it seems the body have a weird part right in the way, this is a part of the frame, directly... So I would have to put the filter in front of that piece, which brings us just behind and a bit under the left headlights.

I can take pictures to explain what I mean, but to my point of view, that setup would have a huge amount of water on rainy days. I refer to the pictures on the first page, the red filter is where I could put it...

Is there a workaround for this? After checking some ppl FWI pages, the only idea that I have is to put 3/4 of the filter in the engine and the last 1/4 in the fender well. I really can't get more in it because of that weird frame piece...

For now, I have a ram air intake :|

Oh, and by the way, what a weid sound it gives with the supercharge!!! It sounds like a sky rocket. That's funny, but not really a nice sound!

Thanks for any input!

are you still online?

doesn't that pvc pipe get hot and melt?

Originally Posted by AmericaFcukYeah

doesn't that pvc pipe get hot and melt?

If your under the hood temps get hot enough to melt PVC then you have bigger problems to worry about other than your fender well intake melting.