Alpina B3 2.7 Track Car

[pedal2metal]

I suggest installing a fuel cell (with baffles or foam and/or multiple pick-ups). Ditch the stock tank, it's a piece of shit! And update to a single fuel pump! Higher volume of course. My 2 cents!

[Andreas]

I agree. Cool vid, but someone should go over track etiquette with everyone. Did you come to a complete stop when the white car came on the track at the first corner?

I am not sure which video you are referring to but regardless, we are not allowed to come to a complete stop unless the track ahead is completely blocked. If the session is red flagged, then we must slow down and enter the pits immediately. Stopping on the track is quite risky IMO since there is always the danger of being rear ended by someone who has not seen the flag (not uncommon).

[Andreas]

At least you were having fun on my birthday. What exactly were your numbers on the second pull? The curve looked a lot better but I missed the final numbers.

107 wheel KW compared to the Supercharged 540i that made around 220 wheel KW.

Bear in mind that this was at 1600m altitude where naturally aspirated cars lose around 15-18 % power. Driving your car down to the coast is a revelation for us power starved reef dwellers.

[Andreas]

Here is a onboard video of my co-driver's adventures in the 2 Hour Enduro race.

http://www.youtube.com/watch?v=ixoIlGG1ysc

And here is additional trackside footage as well as onboard footage of when the wheel broke loose.

http://www.youtube.com/watch?v=OI367Tjwze0

[madformx5]

I wonder how kw compares to horsepower? I might have to look that up because even if you compensate for the altitude that sounds low to me.

Ok I looked up and if the conversion was correct you are making about 143+hp at the rear wheels at a little less than a mile high. Those are pretty good numbers. At sea level if I am correct you are putting to the ground what the stock m20 puts out ot the flywheel. How much does your car weigh? 900kilos? From the video it looks like you have it completely stripped.

107 wheel KW compared to the Supercharged 540i that made around 220 wheel KW.

Bear in mind that this was at 1600m altitude where naturally aspirated cars lose around 15-18 % power. Driving your car down to the coast is a revelation for us power starved reef dwellers.

[SpecRaceM5]

I am not sure which video you are referring to but regardless, we are not allowed to come to a complete stop unless the track ahead is completely blocked. If the session is red flagged, then we must slow down and enter the pits immediately. Stopping on the track is quite risky IMO since there is always the danger of being rear ended by someone who has not seen the flag (not uncommon).

It was the first video and it looked like you got cut off by someone entering the track. I had the sound off so I could be wrong about the stopping part, but that is how it appeared.

[Andreas]

How much does your car weigh? 900kilos? From the video it looks like you have it completely stripped.

The car was weighed at the race event, coming in at 1064 kg with roughly 40-45 liters of fuel. Considering how stripped it is, that does seem heavy. My own car scales confirm that weight.

There was another E30 track car there with lexan windows and a small plastic fuel tank. This car weighed 1067 kg. So I guess I'm not too bad with my much bigger steel fuel tank and all round glass windows.

[Andreas]

It was the first video and it looked like you got cut off by someone entering the track. I had the sound off so I could be wrong about the stopping part, but that is how it appeared.

I am pretty sure that I know which incident you're referring to. That woman seemed totally oblivious to her surroundings and would have turned in on me ; I think my car's noise caught her attention just in time. I think that I did come to a stop there and only continued when I saw her looking over at me.

[Massive Lee]

... we are not allowed to come to a complete stop unless the track ahead is completely blocked. If the session is red flagged, then we must slow down and enter the pits immediately. Stopping on the track is quite risky IMO since there is always the danger of being rear ended by someone who has not seen the flag (not uncommon).

Which is just fine, as it is the usual standard Race procedure. Different from the Driver Schools procedure where a red flag means stopping safely on the side of the track, waiting for instructions. It is true that an over busy (novice) driver might not see the red flag and rear end another (stopped) car.

[SA E30]

The car was weighed at the race event, coming in at 1064 kg with roughly 40-45 liters of fuel. Considering how stripped it is, that does seem heavy. My own car scales confirm that weight.

There was another E30 track car there with lexan windows and a small plastic fuel tank. This car weighed 1067 kg. So I guess I'm not too bad with my much bigger steel fuel tank and all round glass windows.

That e30 has a 60lt Ally tank though. None the less. Your weight loss is commendable, makes me a little more optimistic with our 999kg goal.

[Andreas]

That e30 has a 60lt Ally tank though. None the less.

I did hear a rumour that BMW spent millions developing a special aluminium alloy for their fuel tanks that gives off brown rust like I found in my fuel pump and fuel filter ;)

Considering your heavy S54 engine and gearbox combo, you will battle to achieve that 999 kg goal.

[SA E30]

Oh! Now I thought that brown substance was your secret fuel additive? :P

[KevinSA]

I did hear a rumour that BMW spent millions developing a special aluminium alloy for their fuel tanks that gives off brown rust like I found in my fuel pump and fuel filter ;)

Considering your heavy S54 engine and gearbox combo, you will battle to achieve that 999 kg goal.

S54?

[e30slut]

hey, saw the vid of the accident. Glad it happened there and not anywhere else like you said. scary stuff

I love the build and this is a great thread.


I wanted to gain info on your brake and suspension setup... Those look like massives but I wouldnt know.

[Andreas]

hey, saw the vid of the accident. Glad it happened there and not anywhere else like you said. scary stuff

I love the build and this is a great thread.


I wanted to gain info on your brake and suspension setup... Those look like massives but I wouldnt know.

Thanks.

No the brakes are not from Massive. It is a custom AP Racing setup for the front. 330mm x 28mm full floating discs with 4 piston AP Racing calipers and Performance Friction brake pads.

The rear consists of E46 M3 328mm rear discs and E46 M3 rear brake calipers with the standard brake pads for that car.



I've dumped the brake booster and installed a Tilton pedal box. Both the front and the rear calipers have their own AP Racing master cylinder and the clutch uses a Tilton master cylinder.