My E30 Race Car - a full mod list

[Guest Andrew]

Thought i'd type one up -

Will do pics in the near future - still sorting out engine stuff but its very nearly finished.

1984 BMW E30 323i

WBAAA720207538291

Engine/Drivetrain

Full rebuild

M20 B25 block with M20 B23 head (large port) approx 10:1 C/R

Mahle 83mm pistons

Lightened crank

Lightened con-rods

Lightened fly wheel

Mark Herbert Custom 3 -> 2 -> 1 headers.

Custom 2.5” mandrel bent exhaust with 2.5 dual DTM tips

Getrag 260 5spd gearbox

3.46:1 LSD

Ireland Engineering Race Clutch (metal based, unsprung)

Ireland Engineering Urethane Engine Mounts

Link ECU, Map sensor

MSD ignition and coil

Bosch xxx fuel injectors

B&M Cone air filter (2.5 inc dia)

Suspension/Brakes/Wheels

Full Turner Motorsport J-Stock suspension

E30 M3 custom race springs

J-Stock custom bilstein, upside down rear shocks

Front 22 mm sway bar

Rear 19mm adjustable sway bar

Fixed J-Stock legal camber plates

E30 M3 upper strut off-set bearing

Aluminium rear shock mounts

Front sub frame reinforcement

Rear sway bar lower link reinforcement

Rear sway bar chassis reinforcement

Full urethane bushes, sub frame, trailing arms, front control arms. Powerflex

0800 RACEBRAKES full setup, DBA slotted discs, Mintex M1166 pads

Alert engineering stainless steel flexible brake lines

BBS RS 15x6.5 3 piece wheels. Black over silver.

Interior/Body

Full Herbert Motorsport roll cage – tied to front and rear struts.

2 x Racetech 1000 race seats.

2 x 6 point harnesses.

E36 Shift Knob

Sportline boss kit with Sparco leather wheel

Battery in MANZ approved box relocated to boot.

Henna Red 2 Door coupe

Mtech 1 Front,Sides,Rear with Mtech2 boot spoiler.

Smoked front and side indicators.

[bem-on 0]

Thought I might ask, how much has the mods cost up to this point if ya don’t mined me asking? And which have you experienced the most gain from?

cheers dude

[Gus 5]

viscous LSD? haha

e36 lever?

mod list goober

[Guest Andrew]

close $27,000 to build the car

Link ECU by far - that was a huge gain.

[Guest Andrew]

viscous LSD? haha

e36 lever?

mod list goober

Full mod list - and thats a mod.

[conrod 1]

That sounds like a very well thought out project-well done! What type of events do you plan to compete in Andrew? Have you seen the 2.7 M20 at Bavarians? it belongs to a friend of mine, and will be going into his tarmac rally car, should be a very good engine once completed. What are you using for an inlet manifold on your engine?

Edited October 22, 2005 by conrod

[Guest Andrew]

That sounds like a very well thought out project-well done! What type of events do you plan to compete in Andrew? Have you seen the 2.7 M20 at Bavarians? it belongs to a friend of mine, and will be going into his tarmac rally car, should be a very good engine once completed. What are you using for an inlet manifold on your engine?

Is that Allen's one? Sitting on a stand? - I hear he just got the webbers for it - looks very mean. 300 hp apparently? Ernst was saying its the same motor build that has gone into his old e21 that is being very seriously built up (can't recall the guys name)

I'll do any event I can get my grubby hands on - the plan is to do targa next year - will do lots of small events up till then.

Will be taking the car out to most of the controlled testings at puke for the rest of the year - you should come on down there one weekend - would be cool to have someone with your knowledge while we are testing the car.

I'm using the 325 intake manifold - would love individual TBs and trumpet intake! Intake options are so open now that i'm not restricted by the AFM needing to be in the system.

[conrod 1]

Warren is my friend who has the "other" engine on the stand(there were two of these built- but thats another story), he has 3x twin choke throttle bodies going on to it, 300hp is a bit optimisitic I think, probably be around 250 with good torque spread- should be cranking for an M20! There were two of these engines built at the same time by another friend of mine, the other is running carbs in an E21, not far away from being fired up I believe. The standard intake is probably fine for a mild state of tune, intake runners are long, so will be good for torque, may benefit from a larger throttle body, and throw the AFM as far as you can, you do not want that piece of junk blocking the intake!

[Guest Andrew]

Warren is my friend who has the "other" engine on the stand(there were two of these built- but thats another story), he has 3x twin choke throttle bodies going on to it, 300hp is a bit optimisitic I think, probably be around 250 with good torque spread- should be cranking for an M20! There were two of these engines built at the same time by another friend of mine, the other is running carbs in an E21, not far away from being fired up I believe. The standard intake is probably fine for a mild state of tune, intake runners are long, so will be good for torque, may benefit from a larger throttle body, and throw the AFM as far as you can, you do not want that piece of junk blocking the intake!

Warren Gibb?

Bob Homewood has got 192 hp (at the wheels) tune at the wheels before the clutch slipped - will be revisiting him again when I get the car back from Mark (new metal clutch etc). The injectors at that power were 97% duty cycle also - so am upping the injectors and will go back. Probably looking around 210 wheel hp - so 230ish engine hp. Amazing what the 323 head does!

The e21 the other motor in is just an amazing car - was a very cool build.

[gmccormack 0]

viscous LSD? haha

Isn't it a proper "plate' type LSD?

[Dnz 0]

Very cool, pics of finished product plz....

[Guest Andrew]

viscous LSD? haha

Isn't it a proper "plate' type LSD?

yep