As always tobi, your thread delivers, nice video.

So far there's a two silly things I've noticed:

A saturn sky passing both you and the z3?!
A passenger on the bike doing laps!!!


What tire size and brand/model do you run?

 

first, my car is comparable performance wise with a Mk V Golf GTI, without having as much torque but acceleration and top speed are pretty much the same.
Last time I dynoed the car (before the mapping) it had 201 bhp and 235 Nm of torque ( I think thats 173 ft pound) and I can rev up to 6900 ( 2.5 liter inline 6 M52B25, rev limiter moved from 6300 to 6900)

officiall numbers are only 167 bhp but 245 Nm of torque, as I said, the actual numbers are before the ECU got mapped. Now I think I have a little more torque, next dyno day is in August.

I have no LSD.

brakes are upgraded in the front from 286 mm to 300mm, but only basic disks and pads from the Z3 3.0. They start to fade very fast.

so far for the excuses xD


The Saturn Sky is called an Opel GT in Germany and like the Nissan S14 there are no N/A versions of this car available, so its turbocharged and fully equipped by factory (nothing like a Redline package available, only thing you can order is the color)

stock it has 256 or 261 bhp, not sure. Top speed is a little lower on the paper (230 kmh, my car can do 237 kmh)

since it is turocharged, no guarantee that it was stock, plus the driver is from the area (MYK license plate --> Mayen Koblenz) and seemed to know the track much better.

I'm ok with that.


except for the MkI Elise and the Porsche 944 I had the least powerful car on the track.

to that bike with the passenger....long straight after the finish line and experienced driver. To keep up with a bike I need a very twisty and narrow track without long straights.



stock BMW sport seats, no LSD and fading brakes are the biggest let down tbh. as for the seats, since the car is my DD I'm struggling with putting racing seats into it.

I run Continental Sport Contact 3 tires, 225/45/17 on 8x17" Team Dynamics Pro Race 1.2, these are 9kg light British touring car rims. offset 35mm plus 5mm spacers on the rear.

Z3 was running the same tire model but 18" and wider on the rear.

 

Ah, turbo'd sky makes a little more sense, regardless of how I feel about the chassis. I was just commenting on that having a passenger on the bike was even allowed on the track, that baffles me.

Next tire swap try the Hankook RS3's out. The grip is probably the best without going to R-compounds, and they are much cheaper then what you run now. They wear fast, I've had mine on for 10k so far and could probably get another 10k. (but s2000 alignments ruin damn near any tire within 30k). They aren't great in the rain, but unless you're speeding heavily you won't have issues.

Hankook Ventus R-S3

edit: I won't lie, these tires may out perform your dampers and cause some issues at the limit of the damper. But otherwise you could probably gain between 5-20mph through turns, even faster in some sweepers.

 

oh yea, you can race what you bring even your wife xD

I like the Conti tires because they are quite good in the rain, have a low roll resistance (dont know if its called like that in English) and are light. sometimes they seem to wear fast as well, my last set was down after 4 months.

since they stop making the Contact 3 and theres only the expensive new Contact 5 I think I have to look for another options, thanks for the link.

usually I max my car on the Autobahn if its allowed, but for the moment I try to drive gas saving because our gas prices are just ridiculous, 1,54 € for one ( !) liter of 98 octane at a cheap gas station. If you go to Shell or Aral you'r rich. 100 octance VPower Racing is 1,74 € the liter and weirdly 102 Octane Aral fuel is 1,62 €.

and to mention it again....not for the gallon.....for one liter. I wish we had the gas prices like you have in the states xD

 

Do we use the same octane method as you? Because 100 octane here is race fuel for high boost cars typically

 

Most gas stations in Europe put the RON (research octane number) on the pumps.

In America it's RON+MON / 2
= AON (average octane number)

(MON=motor octane number)

So MON is 88 most of the time, so if you take Aral's 102 RON + 88 MON and divide it with 2 you get 95 AON.

So we basicly get ripped off in Europe lol.

People who don't have a clue think every gas station in America sells worse gasoline than in Europe because they get fooled by the numbers....basicly the same with audio amplifiers and speakers (peak and rms)

The gasoline in America is or was slightly different to the gasoline in Europe , because of that the engine in my car in the US was made out of cast iron while in Europe it was made from aluminum, but I don't think it has anything to do with the octane numbers.

Racing fuel has 120 RON max....Formula 1 fuel is 102 RON...the same number you get at Aral stations.

The German wiki article explains alot more and has different value tables but the English version is doing the job as well

en.wikipedia.org/wiki/Octane_rating

 

lol, I remember Clarkson on Top Gear making a comment about the gas in the US vs the "jungle juice" they sell in Europe. That's brutal on prices though, I think that came out to 9-10 dollars a gallon, so a little over twice what I pay for premium (93 octane).