Cascade Crew

STEEL · Posted: Fri Oct 26, 2007 9:20 pm Post subject: Exhaust thoughts

Ok, so I had 5 or 6 hours of plane ride to read a JEGS catolog I had just gotten, and I had all kinds of bad ideas for my stroker's exhaust.

Ok, so what about long tube headers, with some of these fancy quieters

link

These go right into the collectors, aperently... followed by a fancy turn down pipes. The car wont be driven regularly, but I will drive it to the track. Will I need to worry about too much cold air getting up to the valves?

If this wont work because of cold air getting to the valves, is there enough room from a REALLY short glass pack?

What would be really sweet is if I didnt have to do any welding under the car, I would just weld up a collector type flange to the turn down pipe or the muffler, and then just bolt it onto the headers.

Also, I dont have to worry about difficulty of instalation as far as the long tubes are concerned, they would just go in with the engine....

STEEL · Posted: Fri Oct 26, 2007 9:23 pm Post subject:

Oh, and dont mind me posting links to summit racing. I only had the JEGS catolog, but I have much less trouble finding the parts on summit....

Dewey316 · Posted: Fri Oct 26, 2007 9:25 pm Post subject:

I have heard of guys having problems with those. IIRC there was a few thread on team chevelle with problems. If you want a quick and dirty exaust, why not just get puprle hornies, and bolt them to the collector.

DBL_TKE · Posted: Sat Oct 27, 2007 1:18 am Post subject:

Those inserts don't do very much. I've heard some of the cars at the track with those and it sounds exactly like open headers but maybe 5 dB quieter. What would those do in terms of back pressure?

STEEL · Posted: Sat Oct 27, 2007 6:08 am Post subject:

redlava · Posted: Sat Oct 27, 2007 7:17 am Post subject:

If decide on a different setup I would go for S bend on each header, and dynomax bullets with turn downs before the rear axial.

Xophertony · Posted: Sat Oct 27, 2007 2:12 pm Post subject:

take a look at Quasi-Traction's setup. it was cheap, loud as hell, and can be removed as one piece from the headers. "true" dual as well. i think he has pictures hosted up somewhere. it ended about where the doors ended.

Quasi-Traction · Posted: Mon Oct 29, 2007 7:00 am Post subject:

Steel,

The mufflers I have are the el-cheapo Summit brand Glasspacks. I think they measure like 18" long. They look almost identical to moroso spiral flow's.

Just took a bunch of mandrel bent pipe, and used a cutoff saw and pieced it together.

If I ever get internet at my house back, I'll snap a few pictures and post.

BigDaddyVu · Posted: Mon Oct 29, 2007 12:05 pm Post subject:

hey are you using this car for drag only or just to drive around?

STEEL · Posted: Mon Oct 29, 2007 10:21 pm Post subject:

Its a street/strip. Im going to drive it on nice days, and to the drag strip, but it wont be taking me to work every day.

I have NEVER done any exhaust stuff, which is why just bolting mufflers to the headers sounded really nice and easy.... I just checked TGO, looks like they dont clear the tranny. Maybe I would be better off buying a summit Y-pipe, and then just putting a glass pack there?

Grr. I feel like a newb.

izcain · Posted: Tue Oct 30, 2007 7:23 pm Post subject:

The purple hornies flow SUPER crappy though! Flow tests have revealed that. better of just running some X-tensions and a set of bullets for a quick low budget exhaust that will flow better then anything! IMO of course!

Demon · Posted: Tue Oct 30, 2007 8:50 pm Post subject:

Do what was suggested with the S bends, but clamp a pair of these suckers to the bends...

http://www.classicchambered.com/

best flowing chambers on the market, not stainless, but they sure beat a glasspack ... good range of sizes... you can get a 3" In/Out which is only 21" over all, but the body is 16"

well worth it

STEEL · Posted: Tue Oct 30, 2007 9:17 pm Post subject:

Ok, so I think im getting warmer. Long tube headers, then have an exhaust shop custom up an S pipe to get from the drivers side to the passenger side, then do two of these "Power Sticks" bolted up....

Ok, noob questions.... Will the long tubes come back farther than where the stock Y-pipe cuts over to the right side of the car? Will I need to go with some Shorties instead? What is the actual difference between the two as far as flow goes?

Edit: These chambered mufflers look like a great buy....

Quasi-Traction · Posted: Tue Oct 30, 2007 10:54 pm Post subject:

*Double post, see below*

Quasi-Traction · Posted: Tue Oct 30, 2007 10:54 pm Post subject:

iansane · Posted: Wed Oct 31, 2007 6:05 am Post subject:

With LT's, the best routing I've seen is this...

with a tranny crossmember like this...

But you lose the ease of placement of any cats as well as some ground clearance. LT's end too far back to make any 'nice' shot over to the passanger side like stock so the best way to do it is just shoot them straight back and then Y into the stock I-pipe. But with the stockstyle crossmember it'll hang down WAY too low.

STEEL · Posted: Wed Oct 31, 2007 8:32 am Post subject:

So can I notch my own tranny cross member? Then it would be back to some of these "power sticks" coming right off the long tubes?

Is it just a matter of grinding it, or does it need to be re-enforced after you grind it?

Xophertony · Posted: Wed Oct 31, 2007 10:50 am Post subject:

it needs to be cut off, and a new one welded into place. this is not "notching".

aaron_sK · Posted: Wed Oct 31, 2007 1:47 pm Post subject:

Also bear in mind what trans you will be using. The T-5 and the T-56 use very different crossmembers. You're also going to need to decide if you want to pull the torque arm off the tranny and mount it to the crossmember (like Rod's).

redlava · Posted: Wed Oct 31, 2007 5:21 pm Post subject:

Is this the drag car or the street car? If its the drag car you dont need to do any thing to the tranny x member. Just get the s bends off summit or jegs and they will get you decent clearance. Then get some small mufflers. If this is the street car just get shorttys and a 3 in catback.