exhaust 2 3/4 straight pipe with chips 40 hp

[modblaster]

(chip 40 hp)
for just speak!
hi, i can increase the flows exhaust with 2 3/4 straight pipe (without muffler), for help my engine more flows !(keep my EGT more cold), and 2 3/4 straight pipe flows like exhaust 3 inch with muffler or 4 inch with muffler?:confused:

[95turbodiesel]

2 3/4 pipe is what it is and 3in pipe is better. Depends on if youve got a high flow cat/muffler or what

[modblaster]

2 3/4 whitout muffler and cat ? what is similar (flows)?
3 .5 inch with muffler and cat or 4 inch with muffler and cat?
i think is very good question?:confused:

[awake1630]

how about a 4 inch with no muffler or cat.
that is what i run.


Runs like a raped ape

[bbtlr3]

They say for our engines 3-1/2" or 4" is about best with a good straight through high flow muffler or none at all. This will decrease EGT and make for slightly quicker spool up on the turbo. Don't forget the down pipe, if you are putting together your own exhaust as it seems, as that is pretty restrictive from the factory. Hope this helps.

[modblaster]

2 3/4 straight pipe can reduced restricton like exhaust 4" with muffler and cat?what is better air flow which results in lower engine temps? same flow?

[Garth J]

Think about this
If you double the diameter of a pipe you increase its flow by 4X

[modblaster]

same with muffler and cat:confused:
increase its flow by 4X with 4" exhaust:confused:
2 3/4 straight pipe can reduced restricton , yes or no??
sorry i just speak french! i try my english!:(

[nathan]

yes 2 and 2/4 will help if you have no cat or muff but 3.5 or 4 is better. remember that the way a diesel works is like a gasser runing wot all the time so air flow is one of the best upgrades you can do.

[sixnickel]

I don't know the numbers for exhaust pipe but think about this! 2 1/2" Fire hose efficiently moves 300GPM (gallons per minute) 3" 500GPM and 4" 1000 GPM. And with the stock down pipe you have a big kink in that hose also!!

[surreysinner]

I got 3" no cat.

Has anyone taking off there muffler and noticed much difference? I did notice a small difference when i took off my cat so i figure the exaust should be good to.

Opinions? How loud is it without it. Does it sound like the dodges?

[Chevylover]

Does it sound like the dodges ?


:D What the fu..... hell is a dodge ? :D

Cu,
Sven

[surreysinner]

I knew when i typed that i shouldnt have sworn. Damn blasphamy.

Sorry guys it will never happen again.

Just wonder how much louder it is with out exaust. I know it should help a little with egt's and maybe a 5hp gain but really what i would like even though it means shit alll it that big growly diesel sound.

[Chevylover]

Just kidding about the dodges.
I don't know how much louder it would be. I run a 3" downpipe without cat and a 4" system from Warp Speed Performance with a straight trough muffler.
Nice sound, loud, but not to loud. If you want to hear it, i could sent you a soundfile (made with a MP3-stick, so not the best quality) via email or
klick on the link : 4" Warp Speed Exhaust System (http://freenet-homepage.de/chevylover/K2500.WAV)


Cu,
Sven