M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: fabe on August 03, 2009, 09:38:50 PM

Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 03, 2009, 09:38:50 PM: Continuation from HERE: http://www.m42club.com/forums/showthread.php?t=8782

My modified extractor has been diagnosed to have mini leaks from various joints, so decided to custom made a new stainless steel extractor from scratch.

and here are some of the photos:

#1 - work in progress.
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1040868.jpg)

#2 - almost done
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1040876.jpg)

#3 - Installed
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_0802_edited-1.jpg)

#4 - made to clear the steering coupling
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_0804_edited-1.jpg)

#5 - Stock RHD E30 318is extractor
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/E30_RHD_M42_01.jpg)
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/E30_RHD_M42_02.jpg)

#6 - my old extractor (modified from a E36 318is RHD extractor)
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_9827.jpg)

Initial Review:
The low end torque has increased significantly. the car does not hesitate in 2nd gear going from 1000rpm to the redline when I WOT.. The car just go... Maybe the LHD stock extractor has even better throttle response. I wouldn't be able to tell as there's no LHD E30 318is here for me to sample.

It's also smoother at the upper rev range.. Damn, should have done this much much earlier...

If anyone interested, can probably get the exhaust specialist to make a few sets at a better deal.. Only issue would be the freight charges from Malaysia..
Title: Custom-made RHD E30 318is extractor
Post by: DaneD on August 04, 2009, 02:44:12 AM: I may be interested, depending on cost of course :)
Title: Custom-made RHD E30 318is extractor
Post by: M42_Zach on August 04, 2009, 01:11:28 PM: Im very interested in this. Thats 2 names, :p
Title: Custom-made RHD E30 318is extractor
Post by: fabe on September 08, 2009, 10:40:36 AM: Some undercarriage photos

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1050051_edited-1.jpg)

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1050052_edited-1.jpg)

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1050053_edited-1.jpg)

Routed for max clearance from the steering coupling
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1050055_edited-1.jpg)

Here's the before photo
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_1694.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: M42_Jester on September 08, 2009, 07:03:29 PM: i'm very interested....my exhaust manifold has those so called "mini leaks" as well :(

let me know the cost when u get it

are these just for the E30?
Title: Me 2
Post by: P. Kennedy on September 08, 2009, 09:39:53 PM: Beautiful piece. I love that you call it an "extractor." Add me to the list if they don't turn out to be exorbitantly priced.
Title: Custom-made RHD E30 318is extractor
Post by: fabe on September 08, 2009, 10:08:05 PM: Quote from: P. Kennedy;78124
Beautiful piece. I love that you call it an "extractor." Add me to the list if they don't turn out to be exorbitantly priced.

This is made for RHD E30.. For ur E30, I assumed it's LHD, there should be more options available off the shelf..
Title: Custom-made RHD E30 318is extractor
Post by: P. Kennedy on September 09, 2009, 02:11:45 PM: Indeed, thank you. That occurred to me as well.
Title: Custom-made RHD E30 318is extractor
Post by: M42_Jester on September 10, 2009, 09:02:04 PM: Quote from: fabe;78126
This is made for RHD E30.. For ur E30, I assumed it's LHD, there should be more options available off the shelf..

is there much difference between the E30 headers, and the E36 headers?
Title: Custom-made RHD E30 318is extractor
Post by: fabe on September 11, 2009, 04:45:00 AM: Quote from: M42_Jester;78244
is there much difference between the E30 headers, and the E36 headers?

There's a link on the first post of this thread. Click on it and you'll see the difference between the E30 318is RHD and LHD headers...

Even for the E36 318is, the LHD and the RHD headers are different too.. the LHD header flows better too..

Here's how the E36 318is LHD header looks like:
(http://lh3.ggpht.com/2006TopBanana/SEaEX7QlE8I/AAAAAAAADbo/ppUyZP2lDng/s800/IMG_1788.JPG)

and this is a modified E36 318is RHD header... pipe 1 and 4 has been modified but 2and 3 untouched before the Y joint..
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_9827.jpg)

LHD header has pretty much almost-equal length pipes. but the RHD header is far from having equal length pipes.
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 21, 2010, 09:03:52 PM: Made a few extractor for the few E30 M42 buddies here...

Laser cut flanges.
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060184.jpg)
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060181.jpg)

all the bits.
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060225.jpg)

Purpose built jig
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060221.jpg)
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060223.jpg)

Was previously on 2" outlet, now it's running 2.5" SS pipe up till the centrebox, and then still on 2.2" to the rear... Still contemplating to go 2.5" all the way thru... Car feels good as it is, afraid that it might lose the necessary back pressure for lower rev range if I go 2.5" all the way...
Can feel better flowing thru out the rev range.... Feels better at the top end... Feels like the car goes faster towards 220kph on the speedo... previously, Vmax is about 225kph on the meter and 215kph on GPS... Have yet to try Vmax after this recent tweak...
Title: Custom-made RHD E30 318is extractor
Post by: romkasponka on August 22, 2010, 12:57:02 AM: Nice build! Is its lenght is the same like stock manifold? Why not four in to one? I'm looking for S42 exhaust manifold dimensions for my project.
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 22, 2010, 02:07:59 AM: Quote from: romkasponka;95734
Nice build! Is its lenght is the same like stock manifold? Why not four in to one? I'm looking for S42 exhaust manifold dimensions for my project.

Not sure what is the length for the stock manifold. Anyway, most aftermarket manifolds are for LHD... This one is customised to clear the RHD steering coupling... And also due to space constraint, kinda difficult to do a 4-1... But I have no complaints for this 4-2-1 design, at least everything looks smooth flowing or as good as it gets....
Title: Custom-made RHD E30 318is extractor
Post by: romkasponka on August 23, 2010, 05:32:36 AM: Is it calculated for any rpm? I'm thinking on custom manifold also. What formulas have you used?
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 23, 2010, 08:43:58 AM: Quote from: romkasponka;95773
Is it calculated for any rpm? I'm thinking on custom manifold also. What formulas have you used?

No particular formula. Just work within the limited space available.. The extractor was done by a local exhaust specialist.. I just 'supervise' and give suggestions. Wanted to have them equal length but not possible... But it's still miles better than the modified RHD E36 318is manifold or the stock E30 318is manifold (See pic below)

Stock RHD E30 318is manifold
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/E30_RHD_M42_01.jpg)

My previous modified RHD E36 318is manifold
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_9827.jpg)

This is stock RHD E36 318is manifold
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060154.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: dsm2002 on August 23, 2010, 07:29:41 PM: Quote from: romkasponka;95773
Is it calculated for any rpm? I'm thinking on custom manifold also. What formulas have you used?

For the engine in my post (http://www.m42club.com/forums/showthread.php?t=8343) I was advised to use primaries of 45" long from head flange to start of collector for a 4→1 header.
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 24, 2010, 09:14:01 AM: 3 sets done, ready to be picked up....

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060517.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: nicknikolovski on August 25, 2010, 07:16:17 AM: Are these manifolds available to buy?
Title: Custom-made RHD E30 318is extractor
Post by: M42_Jester on August 25, 2010, 08:34:13 AM: Quote from: fabe;95818
3 sets done, ready to be picked up....

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060517.jpg)

so would these sets fit into the E36 comfortably?
how much are u selling them for, and how much for freight to Australia??
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 25, 2010, 09:41:42 AM: Quote from: M42_Jester;95870
so would these sets fit into the E36 comfortably?
how much are u selling them for, and how much for freight to Australia??

It should fit the E36 but i have yet to try it on an E36 318is yet..
Title: Custom-made RHD E30 318is extractor
Post by: nicknikolovski on August 26, 2010, 08:23:53 AM: Are they for sale?
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 26, 2010, 05:47:57 PM: yes, they are for sale... 2 in the photos were pre-booked.. waiting to be installed...
Title: Custom-made RHD E30 318is extractor
Post by: nicknikolovski on August 27, 2010, 06:43:22 PM: And how do you bolt up the downpipe to the cat-converter?
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 27, 2010, 09:16:19 PM: it's not a direct bolt on replacement... I have change the pipe from 2" to 2.5", feels better than when it was running 2"..
Anyway, here's a photo..
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060514.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: fabe on August 28, 2010, 12:22:07 AM: a couple more photos.. hehe

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_7596_edited-1.jpg)

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_7613_edited-1.jpg)

Clearance from the coupling...
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060498.jpg)

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060497.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: idl1975 on December 16, 2010, 03:59:42 AM: Fabe, are you still selling these?

Quote from: fabe;95963
a couple more photos.. hehe

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_7596_edited-1.jpg)

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/DSC_7613_edited-1.jpg)

Clearance from the coupling...
(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060498.jpg)

(http://img.photobucket.com/albums/v621/fabianyee/E30%20Exhaust/P1060497.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: fabe on December 17, 2010, 08:20:04 AM: Quote from: idl1975;99663
Fabe, are you still selling these?

Yes, and u've got mail....
Title: Custom-made RHD E30 318is extractor
Post by: Letsplayskatch on December 17, 2010, 02:08:39 PM: Fabe my man, drop me a PM. £££ shipped to the UK?

Scott

*Edit*

I have an E46 M3 rack so i've had to modify my steering coupling. Reckon your manifold would fit past?

(http://img.photobucket.com/albums/v232/letsplayskatch/steeringcoupling.jpg)
Title: Custom-made RHD E30 318is extractor
Post by: Balkanac on December 21, 2010, 05:48:18 AM: Fabe you have a PM
Title: Custom-made RHD E30 318is extractor
Post by: bmw318i on November 08, 2011, 09:52:12 PM: Hi im very interested in the headers and exhaust. Would they fit my LHD e36 318i and how much would it cost to get those to America? Please let me know. Thanks.
Title: Custom-made RHD E30 318is extractor
Post by: 5m1dy on November 09, 2011, 01:34:41 AM: Hi,
I'm interested in a set of these.
I've got a RHD e30 318is.
Is there any word on pricing/shipping to Australia?

Thanks