|ncary

Check out this post mans: http://www.bimmersport.co.nz/forums/index....st&p=263650

Condensation is not caused by a leak you twitzors, it's caused by proper sealing if anything. Nice example of a M here. Great colour, I may be biased though

Actually, you are right. Will add it too the list for sure ha. I know my cat is very dead and most likely blocked from years of rich cold starts

Reckon I could just cut it open, gut it, and get it welded back up? Don't want to actually spend money you see

The exhaust flange just before the Cat had very, very tired bolts. Rust and loss of threads negated proper torquing, so the exhaust was leaking, making a nice tractor sound. I had some 10mm bolts around, they were too long, so I spaced them with a 13mm nut slipped over each end. Then applied some torque. Thought it would make a cool photo aha.

Hmm yes yes, it's over twice as hard at the front, not sure how that would drive. I'm sure your weight distro hasn't changed too much with a cage mostly in the back and a bit more weight in the front. Balancing spring rates to weight distribution on the wheels is key for handling as I've read. Centre of Gravity balancing is another thing all together, something for DTM and F1.. You should get your car on some corner weight scales when done, the results of that will be curing curiosities everywhere

-When you know the size of every bolt on the car, and grab only the sockets/wrenches you need for the work you are about to do on the car. -When everytime you drive with the gf, you teach her model codes of all other BMWs. So far, in a month of teachings, she has E30/36/46/90/34/60 down. -When you explain to your RX7/Silvia owning friends that their suspension is based of your own. But BMW did it better of course Well, especially in the FC, shocking right angles all through that car.

Love Ninja Cat! More beer? :

Wham. I love Gustave. http://www.e30m3project.com/e30m3performan...e/eff_rate2.htm Front is Spring Rate times .88 Rear is Spring Rate times .45 Using my car as an example: 350 x .88 = 308lb/in wheel rate (or 5.50kg/mm) 550 x .45 = 247lb/in wheel rate (4.41kg/mm) 308+247=555 Front rate is 55% of total, rear is 45%, weight distro of car (stock anyway) is 52f/48r. Rear is under sprung slightly, and front is over sprung slightly. Giving more rear grip on a skid pad or well executed corner, exactly what a E30 needs. What a speel! Didn't do these calcs before I ordered my rates, but it has worked out perfectly. RESEARCH FOR THE WIN. Hijack over

I'd like to actually measure up the trailing arm and see what the actual rate of a given spring would be. Internet might have it somewhere.. I know however it's not exactly 50% wheel rate from a given rear spring, so halving it to get actual rates is a bit of a guess. But, it wouldn't change as the spring gets harder though.. The point where the spring sits, the T-arm perch, isn't moving so the wheel rate would always be a constant percentage of the spring rate, no matter what rate the spring is. I believe. (Well you could get into things like: as the trailing arm swings up, the spring perch in the front to back axis moves backwards a couple of cm and changes geometry, but negligable really) Hmm actually reading what you said again Cam, I have misread. Certainly for the rates I have chosen, having the back rate 1.59 times harder than the front rate has worked out very well for balance. I don't see how though it would matter if you wanted say a 700lb front rate and a 1125lb rear rate (1:1.6) it should give the same handling balance. But much bumpier

Get in line. He's not keen to sell though, very understandable eh.

Oh yeah? Well certainly with the right driver, and some help from sway bars and good shocks, it'd have excessive traction out of corners, which is perfect for track work heh

Any full standalone on pretty much any engine doesn't need help from stock Ecu's and electronics. It's not like the S54 is anything special, still has injectors and coils and what not.

With effective rates of 550f and 250r it's certainly going to have a lot more rear traction than front. Car's are fastest when set up to understeer slightly, so you'll have to see how it goes

http://www.youtube.com/watch?v=ZLKXvGE6kN8 Just a selection, all inspiring.

Wouldn't it be possible to bypass all the security/ECU-chassis matching bullshit with a full standalone ECU?

I'm sure my PM was clear enough about why you need the rear spring about 1.5 to 1.7 times harder than the front! Why so soft in the back? Have you gone coil over shock with rear tower reinforcement? Or are you saying you have 1000lb springs in the rear, making it 500 effectively? And that 170 rate you would feel if you drove it, it'd understeer and lift inside front wheels like a bitch all day

Was mint. Go Ham.

That's the Summit Rd for out-of-towners. I would have been keen to hit up a Sunday port hills drive with ya! Great pics though, really tidy machine man.

I'd be so so keen if I had the money. Damn it!

Hey Luke, welcome to Bimmersport. You can read heaps about M50 swaps on overseas forums. I like your little engined E30 you've come across. And sweet wheels, they really suit the location outside KFC Make sure you give it a oil change and a new waterpump! LOL!

Jealous. How much did the wreck set you back? S54's are about 5g USD with 6 speeds. Perfect engine.

That's outta this world. Nice link.

Starts at midnight. If you are a TV person, you can watch it on sky. But if you like reading books, doing research, going to Uni and generally being a f**king legend, watch it here: http://www.p2p4u.net/ Click Formula One and then where it says click for steams. Just be tired at work tomorrow! Except if you don't work, in that case just sleep in till 11.

Also, speaking of things hitting drivers heads. Tom Pryce in the 1977 South African GP got hit in the head with a fire extinguisher when a 19 year old marshall ran in front of F1 cars doing 290kph.. Both the marshall and driver Tom died. Horrible video alert: http://www.youtube.com/watch?v=dEPULLjiFyI