|
|
|
|
| Author |
|
|
Registered
|
exhaust type
Is this a useful exhaust (since I have it off) performance wise.
Anyone recognise the type? Alan 
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
08-07-2009, 07:12 PM
|
|
|
Registered Driver
|
Looks just like the one I removed from my system however mine was only one outlet.
I have since acquired a muffler from Brian (Rarly) and sounds a lot better and also the bling factor.  Sorry I can't help with the name of the manufacturer as mine was on the car when I got it.
__________________
Ben '85 930 - Black on Black '95 993 Turbo - Silver |
||
|
08-08-2009, 04:36 AM
|
|
|
Registered
Join Date: Jun 2004
Location: Siesta Key, Florida
Posts: 1,240
|
Looks like a (75mm) 3" dual out Monty. They are made in Australia so proximity is on your side...
JP
__________________
JP 86 930/4 tribute beasty 81 sc beach beater ‘55 Belair ‘40 Ford pickup |
||
|
08-08-2009, 01:52 PM
|
|
|
Registered
|
Thanks JP.
Are they any good as far as performance goes? (While the aussies are our neighbours, we try to ignore them - pretend they aren't there, and maybe they will go away.) Regards Alan
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
|
08-08-2009, 03:01 PM
|
|
|
Wo ist die Rennstrecke?
Join Date: Mar 2004
Location: St Johns, FL
Posts: 1,210
|
To give you an idea of real-world comparison, I had a single outlet B&B (which is very close to what you are showing) and ran it on a dyno. I then removed it and ran a straight pipe and immediately picked up 20 hp. I then stuck on a straight through Magnaflow (I literally stuck it on the end of the straight pipe) and it kept the 20 hp. To answer your question, this muffler is restrictive and hurts performance. Ideally, you want 0 back-pressure after the turbo using a straight through design. It'll keep the turbo cooler, it'll spool faster, it'll increase HP and it sounds great too.
|
||
|
08-08-2009, 07:13 PM
|
|
|
Registered
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,589
|
+1 monty...
hahaha, they're a pretty crappy baffled design, they fetch good resale if you chuck it on ebay tho as they have a lifetime warranty. My friend replaced his monty with a Rarely L8, like I have, the spool up is about 1000rpm earlier, night and day difference... Good Luck Ey Brew
__________________
'89 911 M491+Turbo '90 964 C2 '89 944 Turbo '88 928S4 |
||
|
08-08-2009, 07:14 PM
|
|
|
|
Registered
|
OK guys, Don, what would a 0 back pressure unit look like - do you have anything in mind?
Thanks Alan
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
|
08-08-2009, 09:23 PM
|
|
|
Registered
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,589
|
here ya go:
__________________
'89 911 M491+Turbo '90 964 C2 '89 944 Turbo '88 928S4 |
||
|
08-08-2009, 09:26 PM
|
|
|
Registered
|
OK, so that is a Rarely, zero back pressure 20 hp gain over what I' running, right?
Alan
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
|
08-08-2009, 09:33 PM
|
|
|
Registered
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,589
|
Yep, I wouldn't say there's a guaranteed 20hp, of course results will vary, in my experience and Don's we've had great results from this type of straight through system.
__________________
'89 911 M491+Turbo '90 964 C2 '89 944 Turbo '88 928S4 |
||
|
08-08-2009, 09:37 PM
|
|
|
Registered
Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
|
I had an early B&B. Replaced it with a home built straight through Borla muffler exiting the passanger side and picked up 30 solid RWHP.
Monty's on the other had are suposed to be a great muffler I belive. |
||
|
08-08-2009, 09:57 PM
|
|
|
Registered
|
My beast is track only, so I had better give Brian a call.
Thanks guys, good info as always. Alan
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
|
08-08-2009, 10:07 PM
|
|
|
Registered
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,589
|
Track only.... zork time!
__________________
'89 911 M491+Turbo '90 964 C2 '89 944 Turbo '88 928S4 |
||
|
08-08-2009, 10:19 PM
|
|
|
Registered Driver
|
Quote:
 Only joking. I installed Brian's muffler about a year ago and only just finished installing a set of ssi headers from Brian. I still have the old muffler and I will take some pics of it. By the sounds of it I should put it up and sell it. Contact Brian and you won't look back. Just watch out for the shipping costs all the way down there. 
__________________
Ben '85 930 - Black on Black '95 993 Turbo - Silver |
||
|
08-09-2009, 02:46 AM
|
|
|
Wo ist die Rennstrecke?
Join Date: Mar 2004
Location: St Johns, FL
Posts: 1,210
|
Quote:
Gp to your local exhaust shop and have them fab a simple straight open pipe - end of story. My local shop here in Atlanta would probably charge me about $30 to cut, weld and bend a 3" piece of pipe (keep it simple). For the track, it'll work great. |
||
|
08-09-2009, 07:44 AM
|
|
|
Crotchety Old Bastard
|
Our host carries the zork. It costs ~$50 to ship a zork to AU/NZ so cost does play in. My zork is 321 stainless and weighs 3 pounds. If this is not important to your application then definitely you will be money ahead to have something made up local.
__________________
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
||
|
08-09-2009, 09:55 AM
|
|
|
Registered
|
Brian - PM sent.
Alan
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
|
08-09-2009, 12:48 PM
|
|
|
Registered
|
Zork on the way via Pelican - like to support the people who support the forum.
Might save a few $s getting made here, and in long run, might not. But the info via this forum is worth that much at least. Thanks Alan
__________________
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
||
|
08-09-2009, 01:24 PM
|
|
|
78 Porsche 911SC 3.0L, 3.3Turbo soon. 
