In fluid dynamics terms, there's more to it than just cross sectional
area, but in a general sense you can rely on it for guesstimating
comparative gas flow capacities.
1" pipe = 0.7854 sq. in.
1.5" = 1.7671
2.0" = 3.1416
2.75" = 5.9396
3.00" = 7.0686
difference in areas between the 2.75 and 3.0 pipes is 1.129 sq.in., or
look at it as 19% better flow. Again, this is a really rough
calculation. You will note that dual 1.5" pipes only flow 50% of what a
single 3" will. That is why you will find a 3" cat back Flowmaster on
my truck instead of the more complex, heavier dual systems that seem to
be so popular.
Cheers,
Cale
98cc318sporty
Bernd D. Ratsch wrote:
>
> All of the systems you listed are excellent choices. The final deciding
> factor is the sound that you want. I've run Dynomax and Flowmaster (and a
> few others) on my V6 and found that they both performed the same but I
> personally liked the Flowmaster sound better.
>
> The choice is yours.
>
> - Bernd
>
> At 11:45 AM 04/13/2000 -0600, you wrote:
> >Hey all,
> >
> >I'm about to get an exhaust system and now I've heard from a few people that
> >the flow master maybe the way to go. Is there a clear exhaust system out
> >there that is the best one to get?
> >
> >Dynomax
> >Flowmaster
> >Gibson
> >
> >??
> >
> >The other thing I'm looking at also is the size of the pipe... I've been
> >told 2 3/4 and 3. What's the difference between them?
> >
> >Thanks
> >
> >TOADIE
> >
> >99 Dakota Sport CC
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