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Ex LOCUTUS the fun and pain begin

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baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Wed Aug 24, 2016 10:06 am

First hurdle. The engine mounts on my M30 are apparently the later type and in no way will we be able to install the OEM S38B36 headers. My BMW guys seems to think the earlier version (11811175592) will allow the correct clearance. Trying to track one down. Looking to source one here and have a couple of feelers out. Ralph would you have one of these in case I can't find one here ?

Second hurdle. I took a gamble on the carbon fibre airbox but the one I purchased will foul the ABS unit and brake fluid reservoir. Got the following options;

1) I can remove the ABS block, re configuring the brake lines and relocate the reservoir, but this is a major task and cost.
2) I can sell the airbox I have and purchase one for an M88/3 which should fit.
3) I can ditch the airbox altogether, run trumpets and aftermarket ECU deleting the MAF.

Mmmmmm, what should I do BC hive mind ?
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

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dwcains
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Re: Ex LOCUTUS the fun and pain begin

Post by dwcains » Thu Aug 25, 2016 5:29 am

I'd never want to run a car without a proper air cleaner and cold-air duct, so I'd go with the M88/3 setup.
Dean
Lutz, FL

'85 635 CSi Euro #9402254
'87 Spider Veloce
'92 Spider Veloce
'08 350Z

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davem6
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Re: Ex LOCUTUS the fun and pain begin

Post by davem6 » Fri Aug 26, 2016 7:40 am

No Brainer - Options 2 + 3 :D
Ditch the distributor and leads too, you already have the cam sensor somebody else set up for you. Just think of the aural pleasure.
1987 M6
NSW Australia

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Aug 26, 2016 9:12 am

I've ordered this airbox, from the same supplier;

http://www.ebay.com.au/itm/BMW-M5-E28-C ... 2060771329?

The supplier Christian is very responsive and answers questions quickly. He sent me dimensions and it should fit OK. Minor adjustments like moving dip stick and re-route brake regulator hose will be needed, but not show stoppers. BMW mechanic guy has offered to reduce price of the conversion by the cost of the original carbon air box and he will keep it. Win, win.

Option 3 will come later. Well, running an aftermarket ECU, 6 post coil pack and wasted spark firing that is. Just want to get her running for now so dizzy and OEM ECU it is.
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Aug 26, 2016 9:39 am

Here's a progress shot from today. Lots to do. Next is sorting out engine harness while we wait for carbon air box and engine mount. BM Autohaus has an eclectic mix of cars in at the moment. A lovely arctic blue 2002 undergoing full sports suspension mods and the racing Fiat. I've been getting my hands dirty with all of them, helping where I can.
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locutus_bmautohaus.jpg
locutus_bmautohaus.jpg (757.17 KiB) Viewed 4606 times
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

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francoid
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Re: Ex LOCUTUS the fun and pain begin

Post by francoid » Fri Aug 26, 2016 12:27 pm

No doubt the carbon airbox looks fantastic... But may I ask why you are installing it? Do you feel the plenum is so much better it will yield a real performance gain? Thank you
François

'87 M6 US (Zinnabarrot / Lotus weiss)
'85 635 US (Diamantschwarz / being reupholstered in Lotus weiss)
'72 2002 4sp roundie (Agave / black)
'91 E34 535i auto

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Aug 26, 2016 12:36 pm

You need to be more precise. Compared to what ? An OEM E34 M5 plenum ? Non existent.Open trumpets ? Heat induction problems.
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

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francoid
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Re: Ex LOCUTUS the fun and pain begin

Post by francoid » Fri Aug 26, 2016 1:24 pm

Read thread on engine mount and what you are doing, it's clearer now :)
François

'87 M6 US (Zinnabarrot / Lotus weiss)
'85 635 US (Diamantschwarz / being reupholstered in Lotus weiss)
'72 2002 4sp roundie (Agave / black)
'91 E34 535i auto

davem6
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Re: Ex LOCUTUS the fun and pain begin

Post by davem6 » Fri Aug 26, 2016 9:03 pm

francoid wrote:No doubt the carbon airbox looks fantastic... But may I ask why you are installing it? Do you feel the plenum is so much better it will yield a real performance gain? Thank you
The S38B35 plenum box has the 3"air entry at the front. The S38B36 engine has the 4" air entry in the centre with a 90 degree elbow facing forward. This was designed for the E34 and when you try and put it in the E24 it fouls on the ABS unit. BMW went a lot of trouble with the design of the B36 plenum to improve torque spread across the rpm range, when you change over to the carbon airbox you lose this feature.

But boy do they look and sound good =D>
1987 M6
NSW Australia

GazM3
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Re: Ex LOCUTUS the fun and pain begin

Post by GazM3 » Fri Aug 26, 2016 9:04 pm

Nice progress happening.

The OEM m88 plenum is pretty small. The trumpet entry is also very close to the wall of the plenum. Not sure of the OEM s38 plenum. The carbon one looks a good option if it can fit.

Most big power m88 and s38 seem to run open trumpets. You could fab up a heat shield to seperate the engine and radiator heat from the intake. I like the idea of running a bigger cf plenum as you are.
BMW’s
74 2002 2.3ltr
84 E24 M635csi
94 E34 540i/6 SC
97 E36 M3 euro SC U/C

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
11 Audi S5

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francoid
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Re: Ex LOCUTUS the fun and pain begin

Post by francoid » Fri Aug 26, 2016 10:05 pm

Thank you for the clarification. Much appreciated.
François

'87 M6 US (Zinnabarrot / Lotus weiss)
'85 635 US (Diamantschwarz / being reupholstered in Lotus weiss)
'72 2002 4sp roundie (Agave / black)
'91 E34 535i auto

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Nov 04, 2016 1:12 am

Currently at the "what the hell am I going to do for the exhaust headers" point. OEM S38B36 RHD versions foul the;

1) RH side engine mount. OEM braket was swapped for an earlier rectangular type. Clearance issue on this solved. Photos 1 and 2.
enginemount01.jpg
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enginemount02.jpg
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2) Steering Box. No solution for this. It would run straight through the middle of the box.

3) Thrust arm chassis pick up point. It fouls this by about half a pipe.

To get around this problem, I looked at standard M88/3 RHD stove pipes. There is a set for sale in the UK. Too expensive at 600 GBP. Fortunately, I have access to a very skilled exhaust guy who believes he can do it by modifying the OEM headers I have. Car goes in the exhaust shop 14th November.
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

GazM3
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Re: Ex LOCUTUS the fun and pain begin

Post by GazM3 » Fri Nov 04, 2016 1:29 am

Modify the oem headers. If he is skilled he should be able to do it without bastardising them.
BMW’s
74 2002 2.3ltr
84 E24 M635csi
94 E34 540i/6 SC
97 E36 M3 euro SC U/C

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
11 Audi S5

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Nov 04, 2016 1:32 am

Also took care of a couple other little projects. Installed the oil temp/pressure read out manufactured by Roland into the cluster. Fixed a previously bodged job on the SI batteries and circuit board (hot joint). Soldered in wires to two separate half AA battery holders, so I can replace SI batteries with ease in the future.
gauges.jpg
gauges.jpg (664.52 KiB) Viewed 4262 times
si_batterymod_01.jpg
si_batterymod_01.jpg (637.62 KiB) Viewed 4264 times
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Nov 04, 2016 1:38 am

GazM3 wrote:Modify the oem headers. If he is skilled he should be able to do it without bastardising them.
Yes Gaz that's the plan. The guy was pretty confident he could do it. Gonna send you a PM mate for some advice on another matter.
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Fri Dec 02, 2016 8:55 am

Well, here they are, and I'm pretty pleased. Never going to get the smooth factory look but Andrew from Hyperdrive http://www.hyperdrivems.com.au has worked some magic and re-engineered those problem headers. It's still mighty tight in there though and I may have to wrap them. This was the initial fit up and a bit more tidy up work required.
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headers_remade02.jpg
headers_remade02.jpg (737.64 KiB) Viewed 4165 times
headers_remade01.jpg
headers_remade01.jpg (697.7 KiB) Viewed 4165 times
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

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hornhospital
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Re: Ex LOCUTUS the fun and pain begin

Post by hornhospital » Fri Dec 02, 2016 5:46 pm

I'd definitely put some sort of heat shield over that motor mount.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'87 325is "Odette"; '93 325is "Elvira"; '95 M3 "Ashlyn"

GazM3
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Re: Ex LOCUTUS the fun and pain begin

Post by GazM3 » Fri Dec 02, 2016 6:44 pm

Wow that's tight.

Wrapping them can make them prone to rusting out. Perhaps one of those high tech coatings will be in order. I'm sure u can get the equivalent of jet hot coatings here in Victoria. It doesn't make financial sense to shop headers to Victoria and back.
BMW’s
74 2002 2.3ltr
84 E24 M635csi
94 E34 540i/6 SC
97 E36 M3 euro SC U/C

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
11 Audi S5

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Sat Dec 03, 2016 4:47 am

We do. CIC High Performance Ceramics may be just getting a visit from me :)

http://cicceramics.com.au/coatings/exha ... -coatings/
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

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jps635
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Re: Ex LOCUTUS the fun and pain begin

Post by jps635 » Sun Dec 04, 2016 7:48 am

Hi Baders
Haven't been on here for ages. Would definitely go with ceramic coating, inside and outside. A potential issue with wrapping is if they become oil impregnated, they can be difficult to extinguish, in the event of a fire.

Also see the RHD headers on the S.A. Jagermeister replica - but not sure if for the 24V.
'85 635csi JPS (RA2-66)

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Sun Dec 11, 2016 5:43 am

I've booked the headers into CIC Ceramics for outside/inside "stainless" coating on 11th January. After this, well, it's time to engine harness up, bolt up, move ABS, and fire up !
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

baders
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Re: Ex LOCUTUS the fun and pain begin

Post by baders » Sat Feb 11, 2017 1:12 am

Headers are back and have installed them. Came up pretty good I think, considering the options I had for this engine in a RHD car;
headers_ceramic02.jpg
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headers_ceramic01.jpg
headers_ceramic01.jpg (673.34 KiB) Viewed 3805 times
I have re-installed the instrument cluster complete with digital oil temp/pressure read out. My mechanic is altering the positioning of the ABS unit as it slightly fouls the new carbon fibre air box. Dropped the new Wizard radiator into place and am going to have to cut off and shut the coolant overflow bottle off take on the front of the thermostat housing as this fouls the radiator a bit. Progress !!
1986 635csi LOCUTUS
Arktis Blau Metallic / Pearl Beige
S38B36/Close ratio dogleg 5sp
Perth Australia.

GazM3
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Re: Ex LOCUTUS the fun and pain begin

Post by GazM3 » Sat Feb 11, 2017 1:37 am

The headers look good. Hope they stay shiny like this.
BMW’s
74 2002 2.3ltr
84 E24 M635csi
94 E34 540i/6 SC
97 E36 M3 euro SC U/C

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
11 Audi S5

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MrE
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Re: Ex LOCUTUS the fun and pain begin

Post by MrE » Sat Feb 11, 2017 3:16 am

Yeah, I reckon they look really cool. Nice & tidy job when it's all chromed up like that.

Show us that digital read out when you can please... Image
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rattusM6
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Re: Ex LOCUTUS the fun and pain begin

Post by rattusM6 » Sun Feb 12, 2017 10:19 am

Coming on very nicely and those manifolds (sorry, headers) look great.
Keep up the very good work.
Any more news on the CF Intake installation? Pics?

Kev
Realised I was dyslexic whilst at a toga party dressed as a goat.
85 E24 M6 - 14 years
92 E30 M3 - 11 years now sold
06 E46 M3 - 2 years
13 Ford Grand C-Max, the family wagon
99 E36 323i Sport Touring - now sold
02 E46 Alpina B3 3.3 - 1.5 years

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