spoon street type exhaust

[Cyrus]

thx for the advice!!

[hondar]

hmmm so whats the proes and cons of a 4-2-1 and a 4-1? i'm certain there is a reason why there are 2 such system of piping... o.O, sorry still learning X_X

like i said:"
mate the design of 4-2-1 and 4-1 is got to do with the exhaust flow. it got to do with primary runners, secondary runners of the pipe. the length of them. it is designed to affect your peak torque landing at certain rpm range.

what gear box you have will have an impact as well, what final drive you have, will have an impact as well... what race you are in, will have an impact as well

[sheepo]

hmmm okay never though extractors can be that complicated aswell ... gotta do mre research! thanks!! ^_^

[Cyrus]

thanks for the advice hondar!!
4-1 gives you higher top end, with losses on bottom end,..while 4-2-1 foregoes some of the top end gains for better overall across the range. If it is daily driving,..4-2-1 is better in my opinion.

[gelo]

the jdm ek9 and dc2r both have 4-1 right?
but that about the audm dc2r?

[hondar]

thanks for the advice hondar!!
4-1 gives you higher top end, with losses on bottom end,..while 4-2-1 foregoes some of the top end gains for better overall across the range. If it is daily driving,..4-2-1 is better in my opinion.

well, it depends how you drive as well... it is very subjective...some people the 4-1 generally gives more gain at higher end compared to 4-2-1 but it does mean necessarily that you will always lose bottom end. most of the time you see no gain or very little gain at bottom end in which you dont really need anyway becos most people are driving in mid and high end band most of the time unless you are stuck in M5 or M4 on monday morning going to work and there has been a huge accident in sydney's road.

at the end of the day you want to see at which rpm band that you will be driving the most... your daily driving could be that you spend most of the time at 4000-6000rpm, to some it is 6000rpm and above especially if you are always late for work.

bottom end is like 0-3000rpm roughly... are you going to spend most of your timer revving at that range?

or is it 3000rpm -6000rpm mid range roughly...

or 6000rpm and above?

and dont forget you need to match the header with your gear box and its characeteristic.. what its your 1st,2nd, 3rd,4th and 5th gear ratio. and yes that include auto cars.. becos auto cars do have gear ratio as well. what is your final drive ratio...

what you want to happen is that after each shift you want to land at rpm point where it is already at peak torque. thats where you gonna win the race.

[sheepo]

hmm... but.. how does it come to play??? does lower gear ratio means better or worse...?? i'm seriously confuse and overwhelm with this O_o all the while i just just install it and you can enjoy the benefits already =/

[hondar]

hmm... but.. how does it come to play??? does lower gear ratio means better or worse...?? i'm seriously confuse and overwhelm with this O_o all the while i just just install it and you can enjoy the benefits already =/

it is not better or worse...it depends what kind of race you are into. and yes you can usually enjoy the benefits (or feel the gain) using the so called your dyno butt but you will be able to gain more if you tune them properly.

so it is not a matter of right or wrong... and yes it sound confusing but it is not.

[karbonphyber]

erm... i'm getting a 5Zigen exhaust, 2.5" i reckon

will it have a difference on my ride?

[hondar]

erm... i'm getting a 5Zigen exhaust, 2.5" i reckon

will it have a difference on my ride?

what is your previous setting? have u done any other mods?

i think it is hard for me to help you if you dont tell what is your goal...

if you just put a muffler alone and has not done anything else... i dont think you will feel any gain. there will proabably gain if you put on dyno, but not much you can feel if you use "butt dyno" which is important to many people since most of us dont go for real dyno.

anyway since we are on this topic, when you change such i,h,c,e (intake, header, cat and exhaust) technically speaking you are not making more power but instead you are liberating more power. it is more of unleashing the car potential power.

remember honda cars are mass produced and they one thing in mind is to pass rta emission control in australia in terms on noise and pollution.

i would recommend getting the whole cat back system at least. but again not many people think that it is necessary so... i leave it as it is..

well i know money is a factor and i have said many times that even i need to save up to buy parts for myself. so you need to start saving and buying parts when you are ready. thats why i prefer certain brand becos the parts can be bought separetely. like the b-pipe and the muffler can be bought separetly so offering people flexibility to buy parts one by one when they are ready... again my 2cents

[karbonphyber]

yuppers, thanks
so no one'z used a 5zigen before.
no worries. lol
i'll have to dyno my car soon on my private butt dyno. lol
i've planned the steps already, just that i'm acquiring an exhaust and i wanna know how it sounds and all.

[hondar]

yuppers, thanks
so no one'z used a 5zigen before.
no worries. lol
i'll have to dyno my car soon on my private butt dyno. lol
i've planned the steps already, just that i'm acquiring an exhaust and i wanna know how it sounds and all.

to be honest i love "butt dyno" myself LOL cheap and you really gain a huge satisfaction but unfortunately not the best way to do it.

Well i guess to each his own... i dont know about the sound and at least to me sound is the least of importance to me. but i guess to each his own and i respect that..