Worth it to install the F intake? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Worth it to install the F intake?


TurboTahoe
09-16-2006, 02:25 AM
Hi guys,

I've taken my S intake and removed the excess webbing in order to get better air volume. I also purchased an F intake, and was considering installing it. I was wondering whether there will be much difference (i.e. is it worth the trouble, now that I have removed the excess webbing). What is your opinion? Should I install it or not? Is is worth it?

Sincerely,

Rob :)

dieselboy28
09-16-2006, 02:35 AM
you have to have matching upper and lower iirc. dont just install the f upper and s lower. if you got both then install them. its that much better flow. if not a gutted s breaths pretty well. if you dont have the upper and lower i would suggest plugging the egr tower while youre there

my .02

gmctd
09-16-2006, 01:53 PM
The S intake has cast-in exhaust passages for EGR - keeps the intake air hot, which isn't a bad thing in very cold climes.

TurboTahoe
09-18-2006, 02:15 AM
you have to have matching upper and lower iirc. dont just install the f upper and s lower. if you got both then install them. its that much better flow. if not a gutted s breaths pretty well. if you dont have the upper and lower i would suggest plugging the egr tower while youre there

my .02

I do have the complete intake, both upper and lower. The question is whether a 'de-webbed' S intake is sufficient, or whether an F intake is worth the trouble to install.

Sincerely,

Rob :)

cdre
09-18-2006, 05:23 AM
On that note, does the "F" intake have webbing to cut out? Don't want to remove mine if I don't need to.

guybb3
09-18-2006, 07:18 AM
On that note, does the "F" intake have webbing to cut out? Don't want to remove mine if I don't need to.

No.

chevydiesel
09-18-2006, 12:08 PM
I installed an F upper on my S lower...

You can do this if you use the 94-95 F upper that has a ring in the middle that for some reason lines up directly with the sut tower in the S intake, easy swap temporarily.

Just like gmctd said, the intake air is going to be hotter in the S intake, which I agree ain't bad to help warm the engine up a little quicker in Alaska.

Original Question?

Yeah, I'd do it, but be prepared to disable the EGR stuff (software).

rbr1317
09-18-2006, 10:39 PM
And if you look at it from the summer point of view the intake temps will be a touch cooler with the "F" intake because of the missing EGR pass through. I am not sure if you will notice any seat of the pants difference though. "F" intake is better in my opinion...

CharlieP.
09-18-2006, 10:43 PM
Go with the "F" intake as long as the hyper tech chip is programmed for the "F" engine. The PCM won't look for the EGR function.