i had an escort with the exhaust that came out in front of the back tire. it sounded really good but it burned out the valves.

no backpressure=fail

 

Two idiots who dont know WTF they are talking about fail. Educate yourself
Educate yourself part 2
There is also a lot of good info on the cobbtuning websites.

 

well i never ran the exhaust manifold cause whn i went to my friends dads shop to do it, he said ill cook my motor for having no back pressure. i still got a 10.85 tho. im happy with that. remember only 1/8 track

 

*Backpressure face palm*
check the links in my previous post and this one:Cobb Tuning

 

you should be able to pull on a s10 for sure...i remember beating a 5.9 rt durango stock...u should be fine...and please dont do that to ur exhaust...it prob a waste of time...wont feel any gains...and u dont want any hondas thinking that our cars sound like **** haha

 

LMAO!

 

dude seriously. you **** me off. after looking at other threads and **** you've posted makes me wanna punch you in the ******* nose. quit being a dick to ppl and ragging on the **** they do. if you dont like it then dont post anything.

 

I seriously doubt that he's gona quit, even when he doesn't understand what he is talking about. https://www.cobaltss.net/forums/showthread.php?t=174215

 

X2. You are always a jerk to people casue you think you know everything. Unfortunately you do not. And you need back pressure if you are running N/A, on turbos it doesnt matter.

 

velocity and scavenging are more important than backpressure. so pipe sizing is your main priority. you want to keep velocity up

 

im glad ppl have seen what this dumb **** does and says. if i dont have a clue what ppl are talking about i dont say ****. but he does. guess it makes him feel better then everyone. and who the **** cares if you dont like it if someone put seomthing on there car that you dont like. dont post.

 

u can get a cuttout and make the cuttout go out to the outside of the car... look and sound super loud lol.. and you could just press a button and then close it up.

 

some backpressure yes, too much will rob top-end power production. which is why pipe sizing is your main priority

 

backpressure in itself is bad...all around. you dont want it. what you do want is the PERFECT pipe diameter so that you get a good "suction" (scavanging (sp??)) effect. you want the fastest flowing air, back-pressure will reduce the velocity. \

think of it like sucking through a straw, use a big one and you cant get the liquid to come up easily, use one too small and you get pressure..but you dont get as much through...but if you find the exact right size for the pressure you can exert, then you can suck as much liquid as possible without any "gaps" making it loose suction....

 

I missunderstood what you were saying and I did math wrong. Sue me, atleast I have references to back me up unlike all the kids in her wanting backpressure.
I know I dont know everything but once again you dont need backpressure, I take it you didnt even glance at the links I posted? Here I will even Isolate a paragraph:

"One thing I do want to explain before I get too far into this is backpressure. I hear "You need backpressure to make torque." all the time. And it even comes from "tuners" as well as customers. This is flat out not true. Before I arrived into the company of true tuners I fell into the same trap myself. The reality is that backpressure is the enemy. You want to keep it as low as possible. What you do want is to keep velocity up. However doing the things that keep velocity high involves slightly more backpressure under some conditions. You want to keep the gasses moving as quickly as possible to make both good torque and top end power. The perfect exhaust system would keep the gasses moving as fast as they did coming out of the cylinder and have zero backpressure."
I love how I get under your skin to the point of cursing at me, it is just the internet dude, just write me off as a rude ******* and go on.
Thank you, NWAE for understanding what I have been saying the whole time. You and Maven rock my world.

 

if you got under my skin i would come to NC and kick your ass. but your not worth the time

 

its getting ******* sandy in here. chill the **** out

 

correct, having optimum flow means SOME (although hopefully) minimul back pressure during other rpm/ power ranges...
idealy you want 0 backpressure and all high velocity airflow with a perfect fit of air to tubing size

 

Eh, e-thuggin gets you nowhere 05LSCobalt.

 

exactly...unfortunately this is impossible unless someone wants to create variable sized piping. lol

 

not arguing. would no if i was. just sayin i dont like your attitude toward other ppl. simple as that.

 

get on it!!! That would be AWESOME!~!!!!
some kind of variable reducer at the beginning of the exhaust..hmmmm


myself, with my setup on the car i am runninga 4-2-1 header, 2.5" catless dp (to get the scavenging and velocity going) and then 3" past athat all the way out to a 2.5" muffler...it give me sound, flow, and performance I r love my exahust...albight VERY loud lol

 

Honestly that would be badass, have it based on engine vaccum(to show load) and RPM.

 

ok...rant time...

WHY CAN NO ONE LEARN THE DIFFERENCE BETWEEN: NO, NOW, KNOW.....OR NEW AND KNEW!!!!!!!!
LEARN TO ******* TYPE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


if it wasnt another word it would work...but you cant shorthand to another work that could fit in the sentance and expect people to get it right...

 

i used to run a stock manifold, 3 inch catless downpipe, and 2.5 inch megan. so freakin loud. now i replaced it with the 2.25 inch gmpp sport. mid-range feels better than it did with the megan and i dont really notice any top-end difference