TheDarkRacer

Alright so i got some 2.5in piping im gonna use to make a exhaust for my 87na and i need some help. Currently the car doesnt run, im too cheap to get it towed, and i dropped the stock exhaust outta the car today. And now i need some help with the best design of the pipes so it wont block anything. The P.O. of the car had some cans put on and they sit at a weirdish(for me, im a drift nut) angle. I was wondering what would be the best design for a single tip that runs out to the Driver side with a slight tilt away from the middle. Im looking more for degrees then anything. I got a place i can take it in, but i just need the mesuarments to be good cuz i dont wanna have to haul this stuff back and forth a bunch.

I have searched, and i have looked for some good google pics, but nothing. I need maybe a pic of a Corksport box, laying on the ground from the top and side views if anyone could do that... please and thanks!
~TDR

K!NCH

iTrader: (2)

Take a look at the the Apexi GT Spec.

TheDarkRacer

yea, im look for pics given to me, or someone willing to give me angles. as i stated, i looked at the pics, the dont really help that much, they are just a basic idea... thanks for trying tho...

Black91n/a

If you're too lazy to measure, why should others do it for you?

I'd go passenger side to keep the weight more evenly distributed.

TheDarkRacer

im not too lazy, i dont have a way of getting my car to a shop so i can do it. im 16, and will be welding the pipes in school. I need to get the measurments done before i ask to use the welder. other wise the teacher will yell at me and not let me do it. lol

texFCturboII

iTrader: (17)

what? the 10 lbs? distributed from where?

TheDarkRacer

^^^ i thought the same thing.... but thanks for the free bump! lol need some help here guys...

TheDarkRacer

question, i was just comparing the pipes and it looks like if i run a few degrees to the left(looking from the top of the car down) after the cat, then make a slight slant up and to the right then i should be fine. anyone wanna confirm this? pics of undercarriage with a aftermarket catback would work.

Black91n/a

Well what's stopping you from jacking it up in your driveway and looking yourself?

Maybe it's not a lot of weight, but the driver is on the drivers side, so it'll be heavier on that side, so if you can put whatever weight you can on the passengers side the total weight balance of the car will improve. A single cat back could easily be 20+lbs, so that's a total 40+lb balance difference between the two (-20 on one side, + 20 on the other). Every bit counts.

TheDarkRacer

well i have, but i know if i try and just guess then ill end up doing sh** all wrong and prob get pissed and break something.... and wtf would you wanna add weight that you take off to balance it back out?!?! and 10pounds wont throw anything off to the point any street car will need a counterbalance.
~TDR

Edit: i re-read what u put and it wont matter, im only 160. lol and im still shaving like 25+lbs off of the overall weight.. so yea w/e

Black91n/a

Well every car is a little different, so it's best to measure your car, because maybe it was crashed and is a little bent, or maybe the measured car was crashed and bent.

Yes the weight difference won't really be noticable on a street car, but you said you're a "drift nut" so I figured maybe performance might be at least somewhat important to you, and maybe getting the most out of the setup might therefore be important. A car with better weight balance will be faster.

socalrx7racer

The bottom line is that its gunna be a pain in the **** to fabricate an entire exhaust system off of the car without checking fitment along the way. to the point where i personally would not even attempt it. you could make you're life a hell of a lot easier by saving up and making the car run first instead of spending money on materials to build an exhaust.

i have had like 6 different full exhaust sytsems on my car all of which i have made from scratch including building custom headers for my car 2 separate times. and lemme tell you sometimes it can be a bitch even when the car is on a lift....you cut one bend to close to something under your car and that thing will rattle like the dickens.

socalrx7racer

as far as the balance act goes, if you're gunna take the time to build a full custom exhaust the way you want it and you wanna compensate for driver weight then by all means have at it.

personally this was not a big factor for me but every lb. counts so you might as well.
btw...i have a driver side exit 3" system with one of my custom fabricated headers and an rsr can.

TheDarkRacer

do you have a pic of any of them? And i know im not gonna get it right the first times, but w/e. Im donw with having stuff that rattles, for a lil bit. I just need basic design. Really what i need is that bend that slants up towards the muffler. I'm trying to do a straight pipe from the cat, and then 2 bends, and be done with it. I could really car less if it scrapes ect, i could fix that later. And as far as being a drift nut and having a non running car, i got a guy holding a engine and i have the money, just no way to get there ATM, and its like 10 pounds... lol
But thanks for the help so far.
~TDR

Edit:
thats wut im trying to do. IF they had a better pic of the muffler+bend i wouldnt have made this thread... lol

socalrx7racer

i'll see if i can get a pic later today with my car on a lift for you.

Aaron Cake

iTrader: (1)

Bingo. Beat me to it.

If you fabricate the exhaust off of the car, it won't fit. Steel, especially stainless, loves to move when welded. If you just measure angles, I virtually guarantee that you'll have issues. Even if you miss by degree at the front of the car, that means the rear will move several inches. Not good.

If you really want to do this, make a mockup using something like ABS pipe. Then tack weld at school, bring it home to check fit, and then weld fully at school.

FelixIsGod29X

iTrader: (50)

Get the car to run first.....

Jager

iTrader: (10)

Save up and buy a cheapie exhaust for like $400 (Bonez race pipe/Corksport cat-back or equivalent).

Obviously you don't know what you're doing and you're in over your head.

TehMonkay

iTrader: (-1)

You can buy the ssautochrome version for $250.

Black91n/a

You want it angled UP? That'll collect water and it'll rust out if it's not stainless, and even if it is, it'll likely rust at the welds anyway, not a good idea.

A good way to do a custom exhaust as long as you're content with the routing of an old system would be to take it off and use it as a pattern for the new system.

My point here is that it's better to have the weight on the passenger side, and it'll be the same work either way, so there's no reason not to do it.

TheDarkRacer

Im deff not in over my head. Just asking for advice. I have the old exhaust off as a guide. the P.O. installed some cans and replaced a section of the stock pipe and angled the tips so that they go a degree or two facing towards the ground(didnt notice till i took the exhaust off). I guess i should have said that i already pulled the old exhaust off and will be using it as a rough guide. socalrx7racer, let me know if you can get a pic by sunday(turns out we cant use the welder cuz the teacher isnt there and cant use the shop when he isnt there).
to ^^ its like 10 pounds bro, a sound system will take care of that and i live in Ga, so not too much rain will get in there.
$400 isnt a cheap for a exhaust, $33bucks for some pipe and getting ahold of a welder is cheap. And thanks to everyone so far, even the ones who are just using this thread for increasing their post count....
~TDR

TheDarkRacer

let see if anyone has any pics...

arghx

iTrader: (3)

ftw