what is an X pipe with GMMG??

[Backfire]

<blockquote>quote:</font><hr>Originally posted by Scott Black:
I don't post my methods because i will be flamed for having a different approach, and also because other people will ask me a billion questions that i don't feel like answering. I also already have the GMMG and i didn't pay 700 bucks for it.

Scott<hr></blockquote>

Whatever floats your boat on the posting stuff. To each his own I guess. Just remember that if everyone took your approach, this board wouldn't be too useful [img]tongue.gif[/img]

I believe you traded you Loudmouth for a GMMG so you paid Loudmouth prices. But to the rest of the people reading this, paying $700 for a GMMG and then hacking it up to use with duals is a very poor approach. You could do the entire dual, x-pipe setup for less than that while still using chambered mufflers. And if you want to tell me you are going to use the complete GMMG system without cutting it then it is probably better that you don't post your ideas. You would probably prove your concerns right with everyone bashing you for running duals back into a single pipe.

I am actually interested in how an X-pipe system with chambered mufflers would sound on a V6. If that is going to be your end result, however you decide to approach it, I hope it turns out well. I love the slightly muted sound of X-pipe systems on the V8 cars I have heard, they removed some of the raspyness of some catback systems that don't appeal to me. I hope you have a good result with yours. [img]graemlins/thumbsup.gif[/img]

[ August 20, 2002: Message edited by: Backfire ]</p>

[mickeys]

why dont you just stick with your spintech? not loud enough?

[scottblack]

Yeah, that would be quite useless to try to run the x pipe through the entire catback, LOL. That is not what i'm going to do trust me. I can't wait to do it either, just waiting on some funds to order it all.

I got rid of my Spintech ages ago. Wasn't loud enough for me.

As far as the posting goes, well, i'm not gonna get into that.

Scott

[scottblack]

<blockquote>quote:</font><hr>Originally posted by Scott Black:
Eric what do you mean by Cha-ching? I am QUITE confused, lol.

Scott<hr></blockquote>

[12secondv6]

Well, if you actually wanted to do it right and install an X pipe then you would have true dual exhaust.
Headers, then two single pipes from there, usually you want to mount the x pipe as close as possible to the headers to balence out the exhaust and to promote scavenging effect, then after the x pipe you still have two seperate pipes which both would have one single cat (unless you gut it or just don't have one which is a waste of power in my opinion), then your two seperate pipes would continue under the car, then up and over the rear axle (either both on one side or one on each side) and then two pipes out the back.

That is the true way to run an x pipe.

If you think that you want to use http://www.gmmginc.net/html/chamberedexhaust.html
and then where the 'wanna be mufflers or chambered parts are' and put an x pipe in there then that is a waste, but you knew that right?

You are trying to do a lot of work, is what I described what you are planning or is it a secret?

GMMG for $700, to me it is a waste, my $275 single piped edlebrock works fine for me!!

My 72 chevelle has an H pipe.
Headers come down, dual 2.5 inch pipe, the h pipe is just after the tranny, then it continues to run true 2.5 dual to flowmaster american thunder series mufflers and then tips

[scottblack]

Seriously it is not that hard to understand. Here goes:

Headers--&gt;one pipe off each header going into the X crossover (yes close to the headers, thanks James)--&gt;crossover, umm, crosses over? lol --&gt; exit the 2 pipes, they head towards the passenger's side rear axle and both bend up over the axle.
Here is where the GMMG comes into play...
You see on that link where over the axle there is a Y collector that connects the 2 chambers.
Well you cut off that Y collector and run each of the pipes from the X into each section ( 1 pipe/section). It exits in the stock location and stays as true dual exhaust the entire way out.

As for cats, i have not decided on that yet.

I didn't pay 700 for the GMMG, i traded straight up on my 3 day old Loudmouth which cost me all of 300 bucks. The X pipe kit from Dr gas is going to be around 200. Anyone could do this system for easily under $500 including those Sweet Thunder chambered mufflers too.

James I'm glad you have a different opinion than me. It is what makes the world go round. We all have our different preferences or otherwise we'd all have fast cars.

Example: I don't like nitrous, you do.
Example: I don't like cutouts, neither do you.

So at least we have one thing in common right? [img]tongue.gif[/img]
Oh yeah we both have silver firebirds HA!

Peace. [img]smile.gif[/img]

Scott

[Seppo Kaitainen]

Scott, you know you need to seek professional help. You've become quite the mad scientist.

I don't think you'll see any improvements in sound or power in the trueduel set you described. Also note that a no cat or a gutted cat setup can have a very negative affect on sound. Atleast in the single setup they do. That being said you would have a very neat setup for a v6.

I bid good luck to you in your ultimate exhaust quest!

[Magnus]

If your doing all this work for HP well I think you have been mislead.

Seems like a very pricey experience.

I heard a V6 mustang with X pipe and side outs. IMHO it was one of the worst sounding V6's in the world. :( (He nolonger owns the car so I hope he doesn't get mad at me).

How anybody could not like nitrous and cutouts is beyond me.. They both make power. [img]smile.gif[/img]

I'd like to hear sound clips of the GMMG with X pipe at WOT on a V6.. I've heard clips of the loudmouth at idle but not at WOT where it really matters.

I still believe the best toned exhaust note on a V6 would be achieved by SLP CAI, headers, off-road pipe and B&B. When my car runs again I'll take some WOT exhaust clips. It basically just sounds like an screaming engine. It's very unique. [img]smile.gif[/img]

[scottblack]

Yep i am insane Seppo.
Keith what size pipes were on that Mudstain? I was going to use 2" for the X.
This obviously will produce more HP than the stock setup and i'm doing it basically for sound.
Yeah, i'll probably use cats in the end, or maybe just one cat, LOL. That'd be something, one cat. Put my Carsound in the stock location on only one of the pipes, aaahhaahhhahhah hahahaa hahahaha that would make you guys happy right? [img]tongue.gif[/img]
Seppo, that suprises me about you saying i won't gain anything sound or HP wise. Read up on X pipe setups man, the theories apply to all engines (give or take). I can only hope that ours is an exception.

BTW, i looooove my 4200 stall. :cool:

Scott

[Magnus]

Not sure.. I think 2-2.5".. they weren't that big. He had clearance issues as well.

Well you'll gain over stock sure. But if you are that concerned about HP you'll just put a dump after the y-pipe and run open exhaust.

Borrow some ET Streets for that 4200 and get some track times. A lot of people can learn from your experience with such a monster of a stall, that is if you hook it. Who made it for you?

[Seppo Kaitainen]

<blockquote>quote:</font><hr>Originally posted by Scott Black:
Seppo, that suprises me about you saying i won't gain anything sound or HP wise. Read up on X pipe setups man, the theories apply to all engines (give or take). I can only hope that ours is an exception.<hr></blockquote>

I just think our v6 in a na app is not really limited by exhaust flow. Yes I know the theories on a X and H pipe. I just think its overkill thats all. But knock yourself out. Just take lots of digital pics. B/c it'll be cool to see.

[snotty]

4200 stall, WAY to much on that v6 [img]tongue.gif[/img]

[scottblack]

<blockquote>quote:</font><hr>Originally posted by snotty:
4200 stall, WAY to much on that v6 [img]tongue.gif[/img] <hr></blockquote>

Umm, you are very misinformed. Our stock motor's torque peak is right at 4000 RPM. With such upgrades (like an X pipe or even 3 inch exhaust) the powerband moves up to the higher RPM range. Heads and cam work also can move up the powerband, depending on how big of #s you go.

Don't be afraid to go big just because nobody else has done it. You have to take initiative and sometimes be the guinea pig. Otherwise we would not make any progress with our cars.

Scott

[Magnus]

well......

I've seen many dyno sheets. I believe our torque peak is around 3500'ish. Check out NBMA4V6's dyno
http://nbma4v6.cz28.com/images/jeffdynocopy.jpg

With my 3500 my shift extension shifting at 6K rpm's is 4200.

A timeslip will tell the real story.

[hawgs]

<blockquote>quote:</font><hr>Originally posted by Scott Black:
BTW, i looooove my 4200 stall. :cool: <hr></blockquote>

:D