Author Topic: 285BHP rotrex supercharged M42  (Read 31252 times)

Appletree IS supercharged

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285BHP rotrex supercharged M42
« on: August 05, 2010, 02:14:33 PM »
So just thought i'd update you all finaly got the car mapped and running great, it will be in the Performance BMW october issue which comes out september 2nd in the uk but no doubt will be with most of you guys later than that so keep an eye out.











Full car spec
Engine

Emerald ECU with 3 maps
M42 block - re-honed
M42 crank – balanced
Forged H-beam conrods
Forged JE-pistons 8.5:1 CR
Up rated Mains shell
360* thrust shell
Up rated tri coated big end shells
ARP main studs
ARP conrod bolts
ARP M50 head studs
Fuch fully synthetic race oil
E36 M42 ported head with 6mm valve stems
Supertech solid valves
Supertech valve springs
New timing gear
FSE fuel pressure regulator
Rover “tomcat” injectors
Coil on plug kit
Iridium spark plugs
Custom “Swedish style” plenum
BMW 730 76mm throttle body
Rotrex C30-84 supercharger 80mm pully
Ford escort auto oil cooler for rotrex oil
Ebay 600x300x76cm intercooler
M43 drive pully 140mm
Relocated alternator
2.5” straight through exhaust
Custom rear back box with “Swedish style” down swept tip
ITG airfilter


Drive train

M42 gearbox
Z3 1.9 short shift
3.91 LSD  
325 sach clutch
323 lighted flywheel
E21 release bearing
Z3 1.9 steering rack
Eibach – 40 lowering springs
H&R antiroll bars
Bilstain B8 dampers
Ultra racing front strut brace
Ultra racing rear strut brace
WMS 4pot callipers
Earls braided hoses
EBC redstuff pads
Lenso BSX 16x7.5 rims
Toyo proxie T1R

Styling

Mitsubishi Evo 8 recaro seats on custom mounts
VDO gauges
AEM wideband lambda sensor and gauge
M-tech ll steering wheel
Storm stainless gear knob
Battery moved to boot
Clear side repeaters
Clear front indicators
Fake inner front headlights
H4 outer lights
M-tech l rear spoiler
SE side skirts
Clarion head unit
Vibe component speakers front and rear


Cheer Matt, feel free to ask any questions:D
« Last Edit: August 06, 2010, 01:08:00 AM by Appletree IS supercharged »

deekay

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285BHP rotrex supercharged M42
« Reply #1 on: August 05, 2010, 06:18:04 PM »
stellar work, man- you should come post this on e30tech.com as well, people would love to see it.
5-lug'd big-braked torsen'd hardtop'd ITB'd m42 vert
"the e30 colin chapman would have built" ;)

Hey-u

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285BHP rotrex supercharged M42
« Reply #2 on: August 05, 2010, 08:02:41 PM »
Nice build, I look forward to reading the article.

jscribble

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285BHP rotrex supercharged M42
« Reply #3 on: August 05, 2010, 08:06:13 PM »
Beautiful! Really nice job. Vids, more pics, dyno sheets, and tips for guys hoping for FI would be very appreciated!  Pour on the details, we're all drooling!
Betty - Sold
Sabine - 2004 325xi

bmwconnect

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285BHP rotrex supercharged M42
« Reply #4 on: August 05, 2010, 08:53:27 PM »
Nice build

How much boost?
BarrieM/// BMW Tuner - OBD1 M42,M30,M20,M50,S50 Chips & OBD2 M44,S52,M52 Flashes
EMAIL:midnight-tuning@rogers.com
http://www.facebook.com/Midnight.Tuning.Solutions
Midnight YouTube Channel

Appletree IS supercharged

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285BHP rotrex supercharged M42
« Reply #5 on: August 05, 2010, 11:15:25 PM »
It's running 12.5psi boost and got 285bhp and 220 ft/lbs @ 7000rpm



On the rollers

« Last Edit: August 06, 2010, 01:06:43 AM by Appletree IS supercharged »

dude8383

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285BHP rotrex supercharged M42
« Reply #6 on: August 05, 2010, 11:16:54 PM »
Quote from: jscribble;95295
Beautiful! Really nice job. Vids, more pics, dyno sheets, and tips for guys hoping for FI would be very appreciated!  Pour on the details, we're all drooling!


Seriously, that looks PROPER.


Appletree IS supercharged

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285BHP rotrex supercharged M42
« Reply #7 on: August 06, 2010, 01:03:13 AM »
Few more random pics for you from through out the build














Warsteiner

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285BHP rotrex supercharged M42
« Reply #8 on: August 06, 2010, 06:42:33 AM »
Hey Appletree, Awesome!!!  Is the AFR optimum power for that motor or did you run out of inj?

~Ralph

Appletree IS supercharged

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285BHP rotrex supercharged M42
« Reply #9 on: August 06, 2010, 08:49:25 AM »
Hi, the investors were running just under 80% at the last run. The guy who mapped the car also builds the ECUs and is a bit of a legend when it comes to mapping cars, Dave Walker is his name.

jscribble

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« Reply #10 on: August 06, 2010, 08:50:42 AM »
Made my morning! Did you build the intake yourself?
Betty - Sold
Sabine - 2004 325xi

bmwconnect

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285BHP rotrex supercharged M42
« Reply #11 on: August 06, 2010, 11:47:14 AM »
God I want your manifold :P
BarrieM/// BMW Tuner - OBD1 M42,M30,M20,M50,S50 Chips & OBD2 M44,S52,M52 Flashes
EMAIL:midnight-tuning@rogers.com
http://www.facebook.com/Midnight.Tuning.Solutions
Midnight YouTube Channel

Appletree IS supercharged

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285BHP rotrex supercharged M42
« Reply #12 on: August 06, 2010, 11:55:31 AM »
Yup built every thing myself,

Boost pipes, manifold, brackets a pullys were all made by myselp at home in the garage

Appletree IS supercharged

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285BHP rotrex supercharged M42
« Reply #13 on: August 06, 2010, 12:05:52 PM »
heres the start of the build but i must confess i struggled to update this thread and the origonal on the E30 zone so the M42 club one isn't complete

http://www.m42club.com/forums/showthread.php?t=7516&highlight=300bhp

e30 zone tread, but you need to register
http://www.e30zone.net/modules.php?name=Forums&file=viewtopic&t=116275&start=0

Warsteiner

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285BHP rotrex supercharged M42
« Reply #14 on: August 06, 2010, 03:52:41 PM »
Yeah just wondering if our cars happen to like a little bit leaner like 13-13.3 where yours looks like it is versus the usual 12.8-13

~Ralph