ran my car open header and damn did it run like pure anus...it sounded turbo really cool but waay to sluggish. i raced a SE-R and lost by 2 cars from a 2nd gear roll im gonna race it again with my stock exhaust back on and see what happens!!

 

wat is "open header"?

 

now why would you do something like that?

 

it was 12 midnight me and my friends were bored so we decided to do it lol. And i also heard that the car got good numbers open header and i can definately say that is total bs

 

wow

 

open header = no backpressure.

no backpressure = no hp

 

now maybe if you had some kind of forced induction things would be different.

 

open headers = not smart

 

Did it sound really loud?

 

thats a good way to damage the valves and prolly some other parts... not a good idea. You need to have some back pressure.

 

damage valves...umm ok.

 

i think he meant where the headers connected to the exhaust, he unbolted

 

why stop there?? run an open head thats where the real power lies...

 

and while your at it take the intake off at the throttle body, that be a mean machine!! haha
thats suprising that you ran slower, youd think it be a little quicker... huh
and backpressure????
this is a 2.4 not a 5.8
but ill stop right there because im not going to be responsible for startng a big controversey

 

I think he might have meant he disconnected the s pipe, not the header from the block, but correct me if I'm wrong hilow

 

thats bulllllll____.

if anything, you're missing out on torque and added some top end horsepower.

 

I had my s-pipe unbolted from the header and I had to move the car in my garage (it started raining all of a sudden), I started it up for a few seconds without the s-pipe connected and it was insanely loud.

 

ill quote myself...

[quote=chrisl311"]its a 2.4 not a 5.8

since he said it, not me,
my god..............backpressure?!?!?!?!?!?!
no please be so kind as to explain to me HOW backpressure ADDS horsepower?
this should be good....

 

lets not do this again ok?

https://www.scionlife.com/forums/vie...t=backpressure

Said and Done.

 

[quote=chrisl311]ill quote myself...

The reason people add headers in the first place is so the exhaust can be freeeeee. Let it breath. Back in the day, we used to add a bypass valve that would bypass the exhaust and run open headers when pulled. Push it back in and exhauset would be back in line. The 70's were pretty primitive