Side exit with no crossover?

[streetk14]

I am planning out a new exhaust system for my blown LS1 '68 Camaro project. I will be using a HTH truckarm rear suspension (I know there may be better track suspension designs out there, but this is the route I've decided to go). The motor should be pushing over 600 hp at the flywheel, so a dual 3" system makes sense.

I want to run the exhaust out the sides, exiting before the rear tires. I think it looks cool, and makes it very easy to remove the exhaust system to work on the car opposed to a full rear exit system. The only problem is, where the mufflers are mounted makes it nearly impossible to run a crossover of any type.

I have always had crossovers on my car (had an H-pipe, then an X-pipe). I liked the sound of the H-pipe better, but I can say the X-pipe did quiet the system down. I am worried that a 3" side-exit system with no crossover will be very loud.

There is a red '69 camaro on the cover of the new chevy high that has a system like this. He was running a set of flowmasters and a set of resonators after that. I am thinking of doing something like that. Maybe a set of standard mufflers (50 series flows or spintechs), and maybe a resonator or bullet muffler after that to help keep the noise down.

Ideas, coments or suggestions anyone?



Andy

[redss86]

I am in basically the same boat. I have an 86 Monte SS w/ t/a setup, and a t56 trans. I also have no room to put any kind of x or H pipe in my exhaust. I have bought a delta 50 series low profile type muffler to try using, along w/ the oval tube exhaust (clearance issues). I probably have more problems than others because of the extra bracing I have coming off the t/a crossmember. Here are some pics of my frame setup and pics of the under side w/ the body on the frame.

streetk14: sorry, I'm not trying to steal your thread. I am just needing to know the samething you are.

Any and all help is appreciated,
Joe

[streetk14]

I know I have some options. I can run a full exhaust out the back, and while it may be tight, I have seen it done on cars with the HTH rear suspension.

I like the idea of the side exit system, mainly because it makes removing the system very easy if needed. My old rear-exit x-pipe system had to be cut off to be removed.

My problem is that I have always been very picky about how my car sounds. I've had H-pipes, x-pipes, turn-downs, full tailpipes, and quite a few different mufflers on my car over the years. The X-pipe sounds sweet at WOT, but sounds funky at certain rpms at light load. I would probably choose an H over an X for sound quality.


Right now I'm thinking of running dual 3" side exit exhaust (no crossover), a set of bullet race mufflers, followed by a set of full size mufflers (maybe 50 series flows). I'm hoping it will sound decent, and not make me go deaf. We'll see.

Andy

[Mr.VENGEANCE]

i have side exhausts..

[streetk14]

i have side exhausts..

How did you run your system, and what mufflers did you use? What do you think of the sound? Thanks

Andy

[Mr.VENGEANCE]

I have a flowmaster and custom mandrel the piping.. the sound is orgasmic!

aint an alarm safe around her..

[XCESSIV]

They have the completet kit like eleanor mustang , they also make the boom tubes for NASCAR which I have on my GN
www.drgas.com

[chicane67]

Boomtubes for this application... all the way.

http://www.drgas.com/store/home.php?cat=2

(Thanks Xcessiv, I thought I would just throw in the direct link.)

[Z06killinSBF]

I guess I dont understand why you dont have room for a cross over pipe? Spintech has mufflers that enter and exit out of the same side just for side exit kits.

[redss86]

I guess I dont understand why you dont have room for a cross over pipe? Spintech has mufflers that enter and exit out of the same side just for side exit kits.

I don't have room due to ground clearance issues. I have looked at the Spintech and Dr. Gas setups, and I don't think I can clear them(low car/low braces). If I were to use the dr.gas x-pipe, and boom tubes, I would have absolutely no room for mufflers. I know they make boom tube mufflers, but at $270 ea. I cannot afford them. I did buy a set of regular boom tubes off ebay, I am affraid they are too long. I still have to get w/ my exhaust guy and see what we can do.

[JMarsa]

Right from HTH website:



Room enough for an X-pipe, side exit or rear exit. Pic is from a Camaro.

--JMarsa

[streetk14]

Right from HTH website:



Room enough for an X-pipe, side exit or rear exit. Pic is from a Camaro.

--JMarsa

I know that you can run a full rear-exit x-pipe system with the HTH truckarm suspension. My thing is that I really don't want to run the exhaust that way this time. I am trying to make this car easy to work on, and service driveline parts if need be (and with 600hp going through my T56, it will probably be the case). I had to chop off my old rear-exit x pipe system to remove it from the car. I guess I could have it built with ball/socket connecters so I could drop out the x-pipe if works needs to be done. Hmmm....

[streetk14]

I guess I dont understand why you dont have room for a cross over pipe? Spintech has mufflers that enter and exit out of the same side just for side exit kits.

I don't think their kit will work for me. I have looked into it, and it seems that the exhaust tips would have to cross over or under the truckarms (from the center of the car to the rocker panel area). I think they would get in the way of the suspension travel, or hang really low.

I need to find some pics of the red '69 that was in the latest Chevy High Performance. I don't think they are up on their sit yet, but that is the idea I'm after. If I can find them, you will see what I'm talking about with the crossover issue.

Andy

[streetk14]

Boomtubes for this application... all the way.

http://www.drgas.com/store/home.php?cat=2

(Thanks Xcessiv, I thought I would just throw in the direct link.)

Thanks, that's a cool idea. It looks like the street boom tubes might be the way to go: http://www.drgas.com/store/product.p...7&cat=2&page=1

Do you have any pictures of how these look on a car? Dr Gas claims they are good to 700 hp for dual systems, so that should work fine. Any ideas about noise level and sound? I'd like to keep the noise to a sane level, the cops around here having nothing better to do

Andy

[streetk14]

Here is the picture of the exhaust system I've been talking about : http://www.chevyhiperformance.com/fe.../photo_06.html

See how a crossover might be tough? As much as I'd like to run one, I just don't think it's possible. Ideas?

Andy

[JMarsa]

I don't get the car in CHP. Why the muffler and then the cat? Doesn't seem that there would be enough heat for the cats to work right.

BTW, I've got a truck arm kit but it's not installed yet. I plan on using a crossover like this Dr. Gas one and sending one banks exhaust to the other side. I'll have cats and plan on using a muffler/resonator after the cats just before the dump in front of the rear wheel.







--JMarsa

[chicane67]

Or one of these three......... at least you have some options.

[Z06killinSBF]

How loud are the boom tubes? I have dumped 2-chambers right now. Would it be louder or ALOT louder?

[a73formula]

i did the 3" x pipe then 3 1/2" out of the x pipe into the boom tubes behind my 455. the dr. gas guys said it would be loud than my 2 chambers. Its the same as the nascar exhaust accept the street boom tubes have the spintec type muffling welded in. haven't driven it yet though so couldn't tell you how loud for sure.

[nitrovette]

I run hooker 4 inch sidepipes on my 73 vette with my ls1 with 1 7/8 primaries and augger style mufflers and its not that bad ,its actually enjoyable,now itll be different when i swap my thunder racing cam in this winter.(ls6 cam now)Now last month i removed the mufflers and drove it to a show and it was way too loud for me.