Customizing'it!

[rbk_212]

yeah im aware of that, i want driveability and torque not massive dyno numbers

and honestly, the car felt better after i had a press bent catback, and got heaps better after the extractors and cat were changed, maybe i was just imagining but it felt freer (i have a dc2 not a dc2r btw so my system was probly more restrictive)

also it depends how badly the system is bent..

additionally, do resonators (not spelt resignator by the way) make much difference to performance, i thought they only changed the note and weren't very restrictive?

[VTECMACHINE]

yeah im aware of that, i want driveability and torque not massive dyno numbers

and honestly, the car felt better after i had a press bent catback, and got heaps better after the extractors and cat were changed, maybe i was just imagining but it felt freer (i have a dc2 not a dc2r btw so my system was probly more restrictive)

also it depends how badly the system is bent..

additionally, do resonators (not spelt resignator by the way) make much difference to performance, i thought they only changed the note and weren't very restrictive?

Resonators (sorry if I spelt it wrong) do restrict a little, as is slows the speed of the exhaust gases. They are there only to decrease exhaust noise. So no resonator, is better than having one. But for a street exhaust, a resonator is benficial for EPA and defect reasons.

[GSi_PSi]

The custom drift exhaust mandel bent catback i had , with no resonator or hotdog and the gains werent greater than my new exhaust.

[VTECMACHINE]

The custom drift exhaust mandel bent catback i had , with no resonator or hotdog and the gains werent greater than my new exhaust.

Dyno sheets please. What temp was either day?
Was the piping diameter the same? Some exhaust shops will use 2 1/4 inch piping, where as Jap systems use 60mm (I think 2.38 inch) pipes. There is a lot of difference.

[Tegzieboi_BAR]

just a quik example of cat-backs making a good difference... was at a dyno day recently i cant remember the exact numbers, but there were 2 practically stock S2K's, as far as i rememeber both had induction, but 1 had cat back, other 1 didnt... the S2K with cat back pulled 149atw while the other only managed 130ish from memory.

[VTECMACHINE]

You can't really compare 2 different cars. There are so many other factors you have to take into consideration. Sure the exhaust did make a huge difference though.

[Tegzieboi_BAR]

yeah thats wat im saying... 2 same cars of similar age with the only main differece the exhaust... no way in hell 1 can pull 20kw more on the same dyno, even if the exhaust didnt make 20kw difference it certainly made a fair chunk of it.

[GSi_PSi]

pay for my dyno's ill go do it lol jkss

but yehh power delivery is a lot greater with new exhaust.

the drift exhaust piping was smaller though but not by much.. I can take photo comparing em if u like...

[VTECMACHINE]

pay for my dyno's ill go do it lol jkss

but yehh power delivery is a lot greater with new exhaust.

the drift exhaust piping was smaller though but not by much.. I can take photo comparing em if u like...

Nah, that's cool. The fact that you don't have dyno sheets, and the two are compared at different times of the year doesn't prove anything. If the sound is different, it will create an illusion that you have more power. If piping diameter has changed.. that's also very different too.

[Tegzieboi_BAR]

Nah, that's cool. The fact that you don't have dyno sheets, and the two are compared at different times of the year doesn't prove anything. If the sound is different, it will create an illusion that you have more power. If piping diameter has changed.. that's also very different too.

if u were referring 2 my comment, the cars were dyno'd on the same rollers within maybe half an hour of each other

[VTECMACHINE]

if u were referring 2 my comment, the cars were dyno'd on the same rollers within maybe half an hour of each other

Sorry... was reffering to GSI_PSI's post.

[thegame-01]

Exhaust is the way 2 gooooo