E30guydownunder's Track car build.

[Danny707]

Go for 42lb injectors.

[e30guydownunder]

Yer i had been thinking 42's would do the job i used a 0.6 BSFC value but that might have been a bit too conservative.

the gt25 for sure is a small turbo. What i want now is instant boost and something able to support about 200hp at the wheels maybe 250. Im not going to do much if anything internally. Like the engine needs a complete overhaul. And i will probably do a few things like the 360 degree thrust bearing on the mains and considering o-ringing the head.

at the end of the day this turbo has alot of bigger brothers that are direct bolt on replacements

[e30guydownunder]

another update...track day was an absolute ball...few new goodies and mods etc.

thanks for the reassurance luke....at the end of the day the t25 flange series have a wide range of bolt in or close to bolt in replacements

But its time for an update aye? Well yeh it is, got a drivers floor in finally, new wheels and did an event

Here are the spacers i made for the floor:



And the installed pic (minus fasteners lol...they are in there now):



Heres some pics of the new wheels:













As you can see i've lowered the front a touch...sits so much better and the car didn't feel like it was driving around on its arse so much.

And the few I have from wakefield (should have alot more once my mate gets them organised):



Car looks a lot more like a race car i recon, those wheels were a bargin $820, 6.5 kg each, bolt on to the car and have the right offset and everything and look great!



took my mate for a spin (i mean instructor ) recon he looks worried?:



GPS says i was only doing 140 down the main straight...need more power!



Somewhere along the way i forgot the idea was to stay on the track...the car found the mud a few times











While i was washing the cars i figured this picture was pretty hilarious:



never mind the seven though it is getting picked up later this week.

And the 3 318iS's that have to fight it out for time and money:



So pretty much the wrap up is i got the award for completing the most laps on the day, it was basically a private track day and with only 30 of us, there was hardly anyone complaining that i just kept on going...more to the point i think i was good entertainment value

Put 70 litres of fuel through the car and had an absolute ball....i have incurred some damage for my efforts thou, the standard sway bar links it seems are not up to the 6mm increase in diameter. So now i have an excuse to fix those. Speaking of sway bars, i stiffened the rear bar one notch after the first session. and it made a world of difference. The car instantly stopped the understeering caper and was a whole lot more responsive. The only downer being that i was then picking the inside rear wheel up on some tighter corners.

I think i will try softening the front bar and put the rear back the notch and see what happens...its that or i need to find a short ratio lsd, which will be quite a task. But overally had a great day!

Have got some incar video footage as well just need to compile it and put together a highlights sort of video...30minutes of lap after lap might get a bit boring

[HaNasich]

i must say - the welding on previous page are great.
what elder do u use?

is it good for stainless as well?

[n2motorsports]

wow.  thank you for this thread, it's very inspriational.  I haven't been on a race track in over 2 yrs and i miss it.  never really thought of my m42 as being a capable weekend racer until now.  great job!

[e30guydownunder]

HaNasich we have a MIG-O-MAG 240, its pretty old now but a really reliable and versatile machine. It can weld stainless, if you put the right wire in and use a different gas, its welds ok, not great but gets the job done. We recently picked up a TIG thou so I'll be learning to use that as well

n2motorsports thanks. I wouldn't say its capable :p maybe one in good condition with a few mods, but it would still be a momentum machine. I'm absolutely carving anything up in the corners only to have everyone blow by me on the straights. Turbo will fix that hopefully.

[finite]

mate that is stonking, nice job!

I'm on phase 2 now... fixing stuff i didn't have time to fix before nurburg!

[e30guydownunder]

hehehe good stuff finite, i think im kicking into stage 2 as well, or atleast im spending the money for it.

MegaSquirt II w/PCB v3.0 - got
GT2560r Turbo - got
600x300 Intercooler - got
Aimsports MyChron3 Dash and EVO 4 Logger Setup - In the process of ordering
Bosch External Fuel Pump - got

Pretty much besides the raw materials needed for the Exhaust and Intercooler piping and Surge Tank along with some uprated injectors is all thats left to get for the turbo bits.

I need to start accumulating the bits for the engine rebuild now.

And i will need a shit lot of electrical components for the rewire of the engine loom and digital dash setup.

I'm also on the lookout for a medium case diff and LSD centre. Not sure what ratio yet but i'll prolly drop down a few to take advantage of the lower end torque and the higher terminal velocity

[Chris_XIII]

congratulations my friend!!!! very good work!!!

[TONTON]

Nice, aww man you have 3 x E30 318IS's and ive been looking everywhere for a good one in Sydney with no avail,

Which auctions in Sydney have occassional E30 318's? and where should I look for them?

I tried ebay, carsales,carsguide, forums, etc

[e30guydownunder]

theres been a few cheap ones on ebay recently. my brother picked his up off carsales and my road car was on ebay and carsales. the black 318iS parts car that donated bits to the race car shell i picked up at Manhieme Fowles Salvage auctions. It was stuffed though.

just gotta keep your eyes peeled

[TONTON]

Yeah, there has been afew cheaps ones on ebay, but the engines rooted lol, feels soo weak.

[BeamerIS]

Really nice car.
Congratz on the build...

[e30guydownunder]

Thanks for the compliment BeamerIS

Now the updates are going to start happening again

Didn't get as far this weekend as I would have liked but i did do stuff! Most of it has been  more preparation stuff, cleaning the shed, organising spare parts, cleaning the front cut, cleaning the spare engine.

After the recent success I had with this stand for our hoist:





A plan had been hatched to make a similar one, that makes the removal installation of the gearbox possible (currently you cant because of the forks on the hoist). So I am making a car dolly!

Here is the start of it:



This will double as a stand for the front cut making the mocking up of the new engine postion a sinche with our overhead chainblock and beam setup and the front cut on the dolly.

In the meantime lots of thought is going into the sump. Trying to work out how custom to go, its a case of sticking it in the front cut and having a look which is why im working on getting setup to do so. ope you all had a nice weekend in the blistering heat.

Mondays Progress:







I've had a quick play with the engine in the bay....initial finding aren't looking good for the e36 sump fitting in an e30....more measuring to be done



Payment for one of these bad boys was sent today...my bank account hurts

http://www.dtafast.co.uk/S_60_PRO.htm



Also ordered the elbows and trinkets im going to use for the exhaust manifold from Blackwoods today, should be in next week.

Alrighty So I have been playing with the engine in the front cut now. Initial concerns over e36 sump fitment are unfounded. It is going to be workable with a few mods.

Here are some pictures of the engine in the proposed position (back 95mm and rotated clockwise a bit)

Plenty of room for a radiator and intercooler out here. The RHS has a socket welded to it, thus locating the front of the crank.


Note that we tried clearencing the firewall here. We were expecting to need a bunch more clearence and were concerned we weren't going to get it. But the firewall only needs to be lightly massaged which is great news.



You can see how much we have rotated the engine by looking at what was a vertical oil filter housing. This will be going in the trash anyway, not to worry. (Yes thats a home made load leveller, we make everything!)



I haven't taken a shot but there is a shite load of room down the side of the block now. Plenty for the turbo and dump pipe.

Here is a standard sump:



Plan is to cut the blue and yellow pieces out:


And then cut a second sump up:


Note the forward edge (right of picture) is longer than before. It would be ~30mm longer. Thus welding into the original sump to move the forward edge of the pan back 30mm. Alternatively (if i can't get a second pan cheap) we would move the yellow piece backwards the 30mm and then add in plate to fill the void left behind.

SO to sum it all up. I need another E36 sump, can come off any 318i or 318iS same part numbers, anyone got a cracked one they want to donate? I'm also chasing up an M42 gearbox, I believe the M40 is different. I just want to use it for fitup purposes so if someone were willing to lend it that would be great

Its a catch 22. The chassis rails are tapered. I will have to section the jig to get the right height one i finalise the fore/aft positioning. BUt yer made moving the engine back heaps easy, mark position, move, clamp

ECU is in the country and Injectors are making their way across from Perth as we speak!

[e30guydownunder]

And a lil bit more:

ECU and Injectors have arrived! Progress is slow atm, alot of thinking and not much doing.

I got my hands on a getrag 260 curtousy shotright. Thought behind this is, its a stronger gearbox and its something I can bolt onto the engine without ripping the box out of the race car.

Anyway as it is this turns out to be somewhat advantageous, because of the amount I have rotated the engine, the 260 and its matching gearbox crossmember BOLT UP! Less fabrication is a win! Note how far back the crossmember is in the mounting slots.



Now that I have defined the engine and gearbox position I started looking at the fitment of other pieces...like the turbo. I have pretty much decided on the following position, with the dump pipe heading over the top of the steering coupler and down beside the block. There is plenty of room for 3" pipe!









Next I threw on the intake manifold for shits and giggles:



Woah OHHH! The intake manifold and the brake booster are sharing the same real estate.



The E30 M42 manifold would be fine, but it is a horrible reverse flow design and I'm doing my best to steer clear of it. At some point later on I guess I will make my own plenum, but not just yet. All this does is move my plans to throw the booster in the bin up the list. That will come later, and whether or not I jump straight into a twin master/balance bar setup or just retain the standard master is yet to be worked out.

The only other things I started to give consideration was the engine mounts. For the passenger side it looks like we will be able to modify the existing E36 M42 motor mount arm to suit. But the drivers side is going to be interesting!

Here is a rough layout of the plans:



The standard mount pad will be removed in favour for a lowered pad mounted closer to the block (the blue bit)(increasing turbo clearence). Then a custom fabbed motor mount arm will join the block and the new mount pad (the yellow bit). Overall I'm pretty happy with how things are going at the moment.

I'd just pick up an M3 and do it properly



Yeh you can say it was your idea. I executed it though

The clutch will be even better than it currently is in my G240...as its all G260 stuff

The shifter is going to be a DIY version of UUC's DSSR, complete with V8 supercar inspired shifter, all working together to make a nice solid-feeling, short shifter

The engine mount will obviously go around the turbo



Have you posted a picture there? I can't see anything, but that might be because I'm at work.

Ben, all about the priorities. I want this car to go fast, I'm going for strong, hot exhaust pulses into the turbine. So the turbo was going right next to the engine no matter whether it was top or bottom mount.

and with it setup this way the dump pipe shouldn't be too difficult. Its nearly a straight out the back job. If i went between the steering coupler and chassis for sure, would have been two 45 degree bends sort of deal, but between the block and the steering and I will have to use a 90 degree. not ideal, but will work. But more importantly the whole system (turbo position, intake pipework, exhaust manifold, dump pipe, wastegate screamer) will work better in this spot.

Last night I got stuck in with some cardboard. Have made up some templates for the drivers side mount and half of the passenger side. Need to work out exactly what is happening with the alternator before I go getting a mount plate cut. So should be able to get started on the engine mounts this week.

And now that I have mentioned it, I am looking at putting a smaller alternator on, with next to no electric features in the car now I dont need a massive alternator. We have a few spares kicking around

I've got my hands on a brand new 50amp and I also found a couple of 35amp ones in unknown condition. At the moment I'm thinking I'll go the 50amp because it's a brand newy. It's about 1/2 - 2/3 thirds the weight of the standard 90amp and given the one on the road car took a shit recently I now need a replacement for the race car!