Sore butts? I know you two were knocking the single 3 inch outlet, saying it would destroy low end torque and lead to an early engine failure, did you not? I know two 2 1/2 inch pipes will deliver a larger volume of exhaust than a single 3 inch (pi[r]^2*L). The Gibson rep on this board could give a better explanation. Mental disorder?! I'll have you know I'm taking ALL of my lithium and the voices are starting to go away!!

 

jeez, relax, man...

yes, i did state earlier it about that...I was wrong! Hear it? Wrong!


I stated: I would suggest that a 3" NOT be a choice. It causes NOT ENOUGH back pressure, eventually causing the truck to suck a valve,

That is not correct, on a cat-back system, although it may be correct if there was no convertor, I was told by several people, when I did the exhuast on my truck, that the 302 wouldn't have enough backpressure, it again, just like my above comment is only correct if there is no convertor

The convertor allows proper backpressure!

Again, how can a cat-back duals, 2.25" deliver more exhaust than a single 3"...The cat is giving the same amount of exhuast, either way!

 

Just looking at it from a mathematical point of view, let's say you have 9 foot pipes on both applications. Using the formula for volume, pi(r)^2*L this is what we have:

for the 2 1/2 inch pipes, 529.88 cubic inches of volume for each pipe, or 1059.75 cubic inches for both pipes

for the 3 inch pipe, 763.02 cubic inches of volume

two 2 1/2 inch pipes will hold 72% more volume than the single 3 inch

 

Okay, I see what your getting at now...

2.5"(1059.75) flow 81% more air than 2.25"(858.40) does...Oh, that doesn't sound good!

Howabout dual 3"ers?

okay,well, this would be even better right?

pi(r)^2*L

(3.14)(1.5)^2 times length (108)=1526.04
=This would flow 69% more air than 2.5 inch?

So, a dual 3" inch setup, would flow even more air (69% more to be exact) than a dual 2.5 setup, (releasing more air, than any other setup, correct?)

 

Right!

 

I'm glad to see you getting along now.

 

Thanks all.

Propably start with the air induction... can't decide if the K&N kit is worth it, I might just go with the filter. Is the kit worth the price? It seems to just be a filter with no cover... doesn't seem like much for the @ $200 I usually see it priced at... of course if it improves power over the filter alone, who can argue with that?

I keep you posted on my progress and probably harrass you with questions.

 

Try this guy http://www.gocoastal.com he's selling the K&N FIPK for your pickup for $122.13, no tax.

 

Ford man: The FIPK you mentioned is for Mass-air systems....His 93 is a SD system. I don't see a kit available for SD systems...

 

The guy has 'em, just call the number and ask. His web listing isn't entirely complete.

 

oh, okay, same price for a 302? I'm interested, as you can tell

 

It would be better to call and talk to him instead of quizzing me. Owner's name is Steve Green, he's a good fellow to deal with and has some killer prices on performance items (QUALITY stuff).