Side outlet exhaust?

Post by **TooSicks** » Thu Nov 21, 2002 2:01 pm

Has anyone seen/built one? i've searched for posts but didn't find any. It looks like it should be really simple, the cat is already at an angle towards the passenger side and would require only small angle and gentle bends to get it routed out right in front of the passenger rear wheel well. I'm thinking of coming from the cat with a slight bend, a resonator, and another slight bend to make the tip come out right in front of the wheel well. I plan on cutting a 4 inch hole between the door and the wheel well and routing the tip out that hole,. 2.5" from the cat, thru a 3" resonator and 3"pipe until the 4" resoantor tip. What do you think? I think it'll look and sound pretty wicked.

Post by **180crafter** » Thu Nov 21, 2002 2:01 pm

That would look nice, but why keep the cat? I would recommend removing the cat and adding a resonator in its place. that would cut down on the backpressure and make it sound a little better.

Post by **TooSicks** » Thu Nov 21, 2002 2:01 pm

actually i'm in the process of converting the cat to a resoantor, next week i'm gonna try to get it finished. I punched out the catalyst and i'm gonna fit a straight through section with 1.3" radially spaced 1/4" holes and pack the outside with silencer fiber and steel wool.

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

I thought about doing that, I recently replaced my cat and did some body repair to my rocker panel (lots of rot) I already have a small hole on the drivers side rocker panel of the car and was thinking of making it bigger and stuffing the exhaust through there and cut another hole in my new rocker panel (custom fabricated from american locker steel) If ends up sounding crappy, (ive never heard one of these cars on straight cat) you might want to try adding a cherry bomb exhaust or something (although ive never heard one with these either). You may run into a few problems though, such as where to make a hanger for the new exhaust, and some heat issues, but that can all be cured with heat tape. If you go through with it, post your results, i am very intrested in it.

Post by **silviamirage** » Thu Nov 21, 2002 2:01 pm

:boring

Got rice?

Post by **TooSicks** » Thu Nov 21, 2002 2:01 pm

I got plenty of rice to go 'round!!!*L*

I currently run a cherry bomb on my '90 CRX and with the cat and the cherry bomb it sounds sweet and i noticed a difference in power when i installed it. I've been considering doing the same thing on my 240 side exhaust, but I might just get a magnaflow straight thru unit or something similar. Right now I got on my 240 a hollowed out cat and 2 1/2" flex tubing back to a wannabe twin tip flowmaster copy generic POS muffler. that's what came on the ride when I bought it so I'm in serious need of an exhaust upgrade. it sounds like angry leprachauns are having a hammer fight in a tin can when i downshift but with the cat hollowed i improved horsepower and throttle response. I figure a straight through silenced exhaust out the side is the way to go for performance because the exhaust gas has less distance to travel and cool down, and as we all know, (or should know) hot exhaust gases are less dense and flow better through the tube, thereby reducing backpressure. Why run the extra few feet of exhaust just so it can dump out the back?

Post by **trpower7** » Thu Nov 21, 2002 2:01 pm

Flowmaster makes some good straight through mufflers, I would buy a dump pipe from Don at http://www.pdm-racing.com, leading to a resonator (walker makes a good one) leading to a Flowmaster 40 series, splits off after that running to each side just in front of the rear wheels. Heat tape the whole thing up, make some custom hangars, and make sure to do slight bends when you pull it to the side, not two big 90 degree bends on each side. Also use some good 2.50 to 3.0 inch steel tubing. Hmmmm, after typing that I'm thinking twice about my Apexi N1 Dual.........

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

Upon inspection of the situation under my car today (up on a lift) i noticed that the cat does leave it at a slight angle towards the passenger side, but there are brake lines that would end up being dangerously close to the exhaust, wheras on the drivers side there is no such thing. The only problem with going out the drivers side would be that there would be a pretty serious angle in the piping. How much of a disadvantage would a sharp bend in piping be? (less than a 90 degree T bend, but more than a 45).

Post by **1991240xs** » Thu Nov 21, 2002 2:01 pm

I dunno..but if you plan on doing this i wanna see some pics..sounds awesome-

Post by **TooSicks** » Thu Nov 21, 2002 2:01 pm

I think i'm gonna run right out the passenger side and heat shield the brake lines. I might just use the same size 2 1/2" short cherry bomb glasspack that i run on my CRX. i'm gonna build a prototype from the exhaust parts rack at the parts shop and figure out the best routing and when i do i'll get some 3" custom mandrel bent to fit in one bolt on after cat piece. I'm gonna get some super therm and coat the whole thing when i get it done.

Post by **silviamirage** » Thu Nov 21, 2002 2:01 pm

Increasing the angle of the pipe would cause the gases to have to change directions, creating much slower flow. w/o actually testing I wouldn't be able to say with absolute certainty whether it would or wouldn't increase flow, but I wouldn't risk it. Think about this-how many serious racers have you seen with that mod?

Post by **lateralmotion** » Thu Nov 21, 2002 2:01 pm

Actually silviamirage, most professional drag cars don't have full exhaust systems, but those that either come out on the side or through the top of the engine bay or something crazy like that. and i hope one might consider those "serious racers"

Post by **Bay Dog** » Thu Nov 21, 2002 2:01 pm

Oh boy! Here we go! This could get nasty or it could end now. This will be interesting to see unfold.

:uzi :aug2

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

most racers just shoot the headers straight out the side, whether through a fender or under the car (nascar). I for one know that before working on a 1979 camaro RS (with stock y pipe dual exhaust) there was very little power, but when running the front pipe into a cherry bomb and dumping it out the passenger side in front of the wheele, not only did it sound absolutely awesome, but picked up substantial horsepower. However, there was not a real hard bend in the work on the camaro, and it didnt go through the rocker panel, rather it sort of pointed down to the ground and dumped while still under the car (so at first look there werent any visable exhaust pipes) I am a little worried about how it might sound on a 4 banger though

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

Ok, I did it today, i have no pics though. I kept the flange that came off the cat, as well as that resonator/expansion chamber type looking thing, and put the bend right after that, i then ran it through the rocker panel by cutting holes in it with torches. it looks kinda rough right now but a little bondo and some paint will make it look pretty nice, and im thinking about making some kind of trim ring to go around the pipe.As far as sound goes, its freggin LOUD. low RPMs it sounds real deep, as soon as you hit 3 grand + it gets even louder and adds a really cool cackle. I got all this done for $60. Ill see if i can get some pics in the future.

Post by **danvertrees** » Thu Nov 21, 2002 2:01 pm

When will you be posting pix? I was thinking of doing this on my 93 and would like to see how it came out.

Thu Nov 21, 2002 2:01 pm

A LOUD CRACKLY SOUND?? UMM CHERRY BOMBS AND CRACKLE NOISES DONT SOUND ATTRACTIVE TO ME FOR SOME REASON.. I DONT THINK U WANNA DO ALL THAT TO UR CAR OR ENGINE KID.. I WOULDNT..UNLESS UR A RICER AND LOVE THAT COFFEE CAN SOUND AND NO HP???JOE

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

no coffee can sound, more like a 454 with straight headers (obviously not as good sounding though, but you get the idea, its closer to the sound of a harley with straight pipe if anything), and as far as picks go, my brother left with his digi, and wont be coming back for a while, so i might just buy a crap disposable and take some pics soon, so figure 1 day for pics, 1-2 days for development, and some more time for me to figure out how to post the damn things.

Post by **Anand** » Thu Nov 21, 2002 2:01 pm

PapaSmurf2k3 wrote:no coffee can sound, more like a 454 with straight headers (obviously not as good sounding though, but you get the idea, its closer to the sound of a harley with straight pipe if anything), and as far as picks go, my brother left with his digi, and wont be coming back for a while, so i might just buy a crap disposable and take some pics soon, so figure 1 day for pics, 1-2 days for development, and some more time for me to figure out how to post the damn things.

I wanna see the pic's... fwd the pics to me and I will get them hosted adn send you the links...

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

alright sweet black240. due to some unforseen delays (my attic flooded due to that damn snow storm that blew snow through my vents in my roof) pic taking was delayed a day, but today is a nice beach day (45 degrees) and ill jack up the car and take as many pics as possible.

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

black240 what is your email, i got 5 pics into my comp, but they are kinda crappy (disposable camera, 3 year old cheep scanner). Ill send them to you anyway, at least you can make out what is what.

Post by **Anand** » Thu Nov 21, 2002 2:01 pm

[email protected]

Post by **PapaSmurf2k3** » Thu Nov 21, 2002 2:01 pm

OK, they are on their way. Can you post them since i dont know all that html mumbo jumbo?

Side outlet exhaust?

Side outlet exhaust?

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