x pipes

[Walked_on]

Whats the verdict on x pipes, i have recently been told the pacemaker vortech merge is meant to be the bees knees , or is a standard x pipe better then a so called kiss pipe? or to have a balance between the 2 exhaust?


thanks
h

(pacemaker website has photos but i can not post a link)

[aedeau]

If you get one, you'll probably want something like the magnaflow true x-pipe. I think it's sold locally under the brand super cat. But those generic kiss pipes are apparently not that good because they're just 2 pipes with the sides cut off and then welded together. So if you have 2 x 2.0" pipes merged together, the point where the exhaust gases merge may only be something like 1.5" wide creating unwanted restriction. I believe true x-pipes have a decent sized crossover section/merge.

[SirNemesis]

The picture on the Pacemaker site looks no more than a decorated H-pipe. I can't see how that'd be better than a proper x-pipe merge.

[MonaroMick76]

I believe Burns Stainless was one of the first people on the web to advertise the X-pipe merge collector. There website has some fantastic ideas.

[Walked_on]

the pacemaker one has some vortech spiral thing on the inside which you can not see from the outise, it creates some pulling effect apparently, and the balance pipe helps it. but the magnaflow tru xpipe looks the good. i wonder who sells it in brisbane, time to do some ringing around tomorrow

[Evman]

the pacemaker one has some vortech spiral thing on the inside which you can not see from the outise, it creates some pulling effect apparently, and the balance pipe helps it. but the magnaflow tru xpipe looks the good. i wonder who sells it in brisbane, time to do some ringing around tomorrow

All it would do is put the gases into a spin. Over such a short distance it will have virtually no effect anyway so I certainly wouldn't bother with it.

[Peter B - CV8]

Sounds like a "Hiclone" for the exhaust. We all know how good these were on the intakes.........

[Party Pete]

I looked at these when my exhaust was being done. They certainly looked unremarkable but then Pacemaker has a very good name for extractors and they make claims that this design gives flow gains. Assuming their success doesn't just come from blind luck they should know something about optimising exhaust exhaust flows so I suppose it is hard to dismiss the design out of hand.

[aedeau]

i wonder who sells it in brisbane, time to do some ringing around tomorrow

Not too sure, but this is the website with the super cat info:
http://www.supercatconverters.com/x_pipes.asp

looks exactly like a magnaflow from the outside.

Also, if you look at their product section on their website, there are references to magnaflow http://www.supercatconverters.com/products1.asp

I'm pretty sure right price exhausts at slacks creek sells them. I remember calling them up and asking about how much to get an x-pipe welded in place of my mid muffler. They quoted approx $150 for labour including the x-pipe. I asked them what brand x-pipe and they said super cat. At the time I didn't go ahead with it because I wanted a h-pipe installed.

PS: I ended up going with straight pipes from the cats back instead (work done elsewhere) :)

[Daves8]

I much prefer to lose a few KWs and have a better note with a H pipe....

[Party Pete]

How did it go without any merge pipe at all? I had no merge on the Monaro for about a week and it felt absolutely flat to drive.

[Walked_on]

thanks for the info aedeau. I currently dont have a merge at all, i have a centre muffler which the system shares, that is all, then twin pipes to the rear again. My car goes for a re-tune next week, so im keen to get this x pipe installed hopefully on friday.

daves8, my car currently sounds like a thong slapper, if you get what i mean, il tell you the difference in noise once x pipe fitted

h.

[aedeau]

How did it go without any merge pipe at all? I had no merge on the Monaro for about a week and it felt absolutely flat to drive.

To me it felt a little more free flowing. When I had that big mid muffler there, the exhaust seemed 'wheezy' if that makes sense. Almost like it couldn't extract the exhaust gases fast enough, but this could have purely been an effect of the change in sound? Not too sure.

[Walked_on]

so i got the pacemakers ones fitted. only driven around 20kms, things noticed, a lot quieter, car sounds more crisp, seems to rev a little different and more responsive. will have figures hopefully by next wed.

h.

[vz6.0]

i cant see how impeding the gas flow can help anything, and ive never seen spiral dealy's in the pipe of any decent car.

but im sure pacemaker will sell thousands anyway...

[SS Enforcer]

Sureflo do a very good merge pipe in their systems.

http://www.ls1.com.au/forum/showthread.php?t=54719

cheers

[Walked_on]

so pacemaker x flow merge pipe made me go 2 tenths slower and down 2mile an hour. that comes out next week, and the supercat/ magnaflow tru x pipe merge pipe will be fitted.

h.

[VFast]

so pacemaker x flow merge pipe made me go 2 tenths slower and down 2mile an hour. that comes out next week, and the supercat/ magnaflow tru x pipe merge pipe will be fitted.

h.
Interesting result WalkedOn.

I was actually looking at these some months back but couldn'y find any results on them in the real world.

What 1/4 mile times are you running and how consistent are these?

Cheers

[Walked_on]

i was doing 12.3 @ 116mph consistantly. Yesterday i was at 12.500 @ 114mph. I did 2 pass's exactly the same time. Well 1% difference, 12.502 @ 114.43mph, with a 1.998 60ft. 2nd pass was 12.499 @ 114.51mph with 2.006 60ft. There could be a few reasons to why i went slower, il find out during the week.

h.

[vz6.0]

as much as i agree with the shitness of the product, there may be other factors at play here such as the weather, flow differences in the pipes affecting the tune etc.

first youd need to correct the timeslips before/after to an air density/altitude and then perhaps check lambda at WFO to see if something has changed.

its easy to lose 20hp on a real shit day.

[Walked_on]

as much as i agree with the shitness of the product, there may be other factors at play here such as the weather, flow differences in the pipes affecting the tune etc.

first youd need to correct the timeslips before/after to an air density/altitude and then perhaps check lambda at WFO to see if something has changed.

its easy to lose 20hp on a real shit day.

very tune, but i took the papce h pipe fitted a supercat x pipe instead. check the amg thread for my results