Straight Pipe ? test pipe VS high flow cat

[crazykamper]

monkey : guess so, i might just have to do this stuff. we shall see.

2dr, so its not that bad, but it is bad, how about the sound of the car, im gonna install an intake (as soon as i get the filter from monkey,) and basically thats all, what will the car sound like? deep and throaty? or ricey,......

[mkymonkey]

it will sound just like any other honda with an intake...except a bit deaper and yes throaty. you'll especially like the sound when the secondaries open up i wish we could have met up when you came over here so i would have shown you. i mean most of the questions you ask i could show you the answers on my car.

[Vanilla Sky]

i've seen a couple of low quality cast manifolds, and a few mid-quality headers screwed up with wrap. i don't know if it would be worse on the street or not, but i've only seen problems out of dirt track cars. i'd go for it unless i had a DC header.

[gfrg88]

it will sound just like any other honda with an intake...except a bit deaper and yes throaty. you'll especially like the sound when the secondaries open up

for some reason i cant hear my secondaries kick in

[MessyHonda]

for some reason i cant hear my secondaries kick in

music too loud?...lol

[gfrg88]

music too loud?...lol

bwahahaha, i dont have secondaries i have a b16 IM

[A20A1]

i've seen a couple of low quality cast manifolds, and a few mid-quality headers screwed up with wrap. i don't know if it would be worse on the street or not, but i've only seen problems out of dirt track cars. i'd go for it unless i had a DC header.

My wrap didn't hurt the cast manifold, eventually the wrap does deteriorate and starts cracking apart. Wrap the pipe under the pan to help shield your oil from extra heat as well.

The exhaust sound on my car was deeper and the idle was higher after a few hard runs.

[Vanilla Sky]

yes, but our cast manifolds are of reasonable quality. i've not ever had experience with wrap on anything other than american v8s.

[crazykamper]

wait, why not wrap the cai??? lol. wouldnt that help block out heat? or does that keep heat inside?

[mkymonkey]

well i have a dc header that i really dont care for because i paid 30 bucks for it. so im going to wrap it...since you guys dont seem to have a problem with it. well we'll see what happens

[mkymonkey]

wait, why not wrap the cai??? lol. wouldnt that help block out heat? or does that keep heat inside?

they have other type of wrap for that

[racerx]

wait, why not wrap the cai??? lol. wouldnt that help block out heat? or does that keep heat inside?

exhaust wrap is designed to stay on metal at extreme temps, and can only insulate so much. in fact, it works better once it's been "cooked" on.

for the CAI, i sprayed all my intake tubes with about 7 layers of rubber undercoating. you can pick it up at any parts store in the same section as the spray paint. rubber undercoating takes about 1-2 days to harden, but once it does, you've got a couple millimeters of pure rubber insulation. Nothing beats it, except of course, something like water heater blanket material (for your house water heater...)

...who would do such a thing......... *whistles innocently*

[mkymonkey]

lol...dont domestic guys do that to their charge pipes that come off their intercooler? i the ones that use a pulley supercharger. ive seen it on many m3's as well.

[racerx]

i have no idea to be honest... i've never heard of anyone else doing it, but i can guarantee nothing else insulates better. too bad it looks like you "stole something off of Apollo 17's lunar lander" as someone on here so aptly put it

[sinisterfuzzy]

i have this set-up as well pretty much, it's so loud, but my flex pipe is leaking like a mofo so i think that's why it's louder lol... i've been pulled over twice for this...but it's dumb cuz it's not even as loud as a LOT of the trucks out here.

[crazykamper]

wow, ok, now i see, i was changin the oil today, and was thinkin about how easy it would be to get my bolts out, nothings rusted AT ALL (Very nice car!) so if i get one hopefully it'll be aight...

[racerx]

must be a new exhaust recently or something... just the oxygen in the atmosphere is enough to begin corroding iron and steel. (plus the humidity...)

i'd be flippantly exuberant if it really isn't rusted though.

[A20A1]

is there a diff between the highflow cat and the straight pipe or bpipe, or whatever they called...

https://www.3geez.com/forum/showthrea...427#post639427

You are not going to lose torque by removing the cat...

The only time you lose torque is if you open up the exhaust too much. Meaning, if you have 2.5" or greater size diameter pipes and whatnot in your exhaust (no turbo), it's probably going to lost LOW END torque, but perform better up top (hp AND torque).

yup those big pipes will move your torque up so high you'll never see it again


.

[TdotWarrior]

just a question....
so i went to a place in toronto called majestic mufflers and they apparently specialize in mufflers but i told the guy i had a 87 accord and its a stock engine and im not looking for a performance muffler just a street one that would make noise and he told me that i would need a new cat to get a decent amount of noise and a magnaflow exhast...... the cat is $250 and the magnaflow is also 250.... 500 bux for that.. is that shit overpriced or what?

and also do i really need to remove my cat in order to get a ok amount of noise

[crazykamper]

the cat is WAY over priced, go to ebay, they are like 50$, i donno about the muffler though, the cat from what im told will increase the noise, and it will be deep and loud.

[TdotWarrior]

see i dont want it that deep i just want to make it go vroom.... so should i get a resonator or sum shit...

[crazykamper]

a20ai, thanks for that pic of differences....... i will try to get a test pipe, or will be getttin a high flow cat.....

also, is there a way to get a test pipe, and weld the whole for emmisions on there, and somehow make it look like a cat? say just weld 1/2 the cat on, so it looks like it if i get pulled over or inspected?


tdotwarrior, someone that knows the answer to this, will tell you, i dont, so im just gonna keep my mouth shut for now. lol.

[A20A1]

just a question....
so i went to a place in toronto called majestic mufflers and they apparently specialize in mufflers but i told the guy i had a 87 accord and its a stock engine and im not looking for a performance muffler just a street one that would make noise and he told me that i would need a new cat to get a decent amount of noise and a magnaflow exhast...... the cat is $250 and the magnaflow is also 250.... 500 bux for that.. is that shit overpriced or what?
and also do i really need to remove my cat in order to get a ok amount of noise

2.00" and 2.25" are okay for mild aftermarket improvements, we fall around 1.75" stock and thats what our cars come with, it doesn't account for the stock cat or muffler though. When you think about it the "DEMAND" for exhaust flow is not constant... as RPM increases so does the need to flow more exhaust.


If you have an old cat replace it.



125 hp x 2.2 = 275 cfm
1.75" Single Exhaust pipe flows about 275 cfm

163 hp x 2.2 = about 360 cfm
2.00" Single Exhaust pipe flows about 360 cfm

200 hp x 2.2 = 440 cfm
2.25" Single Exhaust pipe flows about 440 cfm

cat technology is getting better so you don't have to be illegal and ditch the cat alltogether to get good performance, and not many of us here are scrapping the bottom of the barrel looking for every last drop of power to win a 1/4 mile race.

Here are some high flow cats

Random Technology
Magnaflow Magnaflow Cat

CARSOUND
SMSP SMSP Spun Bodied Cat

Here is some good into on cats.
http://www.team-integra.net/sections...p?ArticleID=24
http://honda-tech.com/zerothread?id=1128725

[gfrg88]

a20ai, thanks for that pic of differences....... i will try to get a test pipe, or will be getttin a high flow cat.....

also, is there a way to get a test pipe, and weld the whole for emmisions on there, and somehow make it look like a cat? say just weld 1/2 the cat on, so it looks like it if i get pulled over or inspected?


tdotwarrior, someone that knows the answer to this, will tell you, i dont, so im just gonna keep my mouth shut for now. lol.

take your stock cat out, cut it in half remove all the insides to make it straight through, then take it to some place to get welded back together and youve got youself a new cat.

[racerx]

take your stock cat out, cut it in half remove all the insides to make it straight through, then take it to some place to get welded back together and youve got youself a new cat.

you don't even need to do that. just take a screwdriver or some other large, blunt object, stick it in the cat and beat the end of it with a hammer. that shit in there is mostly porcelein so it just breaks apart and falls out.