My 370z "unicorn"

filip00

The Z is almost ready for the season!

The battery was charged and works well. I just mounted the new tyre setup - Goodyear Eagle F1 Assymetric 6, in stock dimensions.
The only remaining thing before I get it on the road is to change the transmission oil - it's original, with 20k miles, but the car is 15 years old so I figure it's about time to change it. I'm going with stock 75w85 GL-4 oil, but unfortunately not Redline, as it's not available here, so I bought Mannol.

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filip00

Alright, transmission oil changed! And what a super easy job it is, I completely forgot that the viscosity of transmission oil is WAY thinner than the differential oil - OS Giken oil is 80w250 and it's horribly thick, it takes ages to pump it via hand pump, while transmission oil being only 75w85, goes super fast. Changing it was a breeze.
Tomorrow registration, can't wait to go for a ride!

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filip00

Went for another ride today, the new tyres are just ridiculously grippy.



Goodyear Eagle F1 Assymetric 6, 245/40/19 front and 275/35/19 rear. They inspire a lot of confidence, tell you to push the car more and more, it's just silly. I went on a small roundabout that I often go through, it's very tight and where I would usually encounter crazy understeer, these tyres just grip and grip, it's silly. Incredibly good tyres.




Also, managed to finally test the new final drive gearing. The car feels a LOT quicker, especially third gear. In moments where I would definitely grab a second gear, now it's super enjoyable to use the third gear. Also, tested highway driving, at 130km/h it's at 3200rpm, so it's not too high revs at all. So far it seems like 4.08 FD was an excellent choice.


And one more stylish pic of the Z

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MarkRT

Handsome Z!

filip00

Thank you!

In th meantime, last weekend had a drive to the coast and back (not much, some 200km) and was driving alongside a fella in an e92m3 (414hp 400nm). We did a few rolling start pulls, I was curious just to see whether there will be any difference now with the shorter final drive. To my surprise, the cars were equal! Last year when I tried the same test, the M3 was always pulling away, it was obvious that the Z can't match it...but now it's almost as if they were completely toe to toe. Start from zero would probably be heavily in BMW's favor, as with launch control and automatic, I can't match that...but rolling from 50 it's pretty much dead heat.
Very cool to see that the car is now quicker, and I'm not just imagining it.

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MarkRT

It must be feel so great! Nice

filip00

This week I had a chance to visit a new (for me) racetrack, the PannoniaRing in Hungary.

The track is just amazing, supposedly one of the safest tracks in the world, as dive zones are up to 150m long. The track is wide and visibility is good. It is however, pretty technically difficult, with almost 20 corners and some being very dependent on the entrance of the previous corner. Really an awesome track all in all.

I had a mixture of wet and sunny weather, with luck of having only a handful of cars join me for the whole day, so I could really play around with pushing the car further and further over the limits. Culminated in doing a few high speed skids, fastest ones being top of third gear around 130km/h.

More here:

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filip00

Forgot another point, you can see the car sliding in the video, the current setup (for anyone interested, and for my future reference) is:

Rear ARB set to medium
Eibach Pro Lowering kit -2cm all around
Toe and camber arms set, front camber -2°, rear camber -1.4°. Rear toe just slightly closed at only 0.02°
GY F1 Assym 6 tyres, 2.5bar all around 245 front, 275 rear

This gives the car slightly oversteery handling, but very predictable and very gradual - in both slipping and regaining grip. If there is desire for a quicker lap time, the rear ARB should be set on soft. The rear camber I think should be left as is.

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filip00

Last weekend there was a hillclimb race on the nearby hill. I'm not too keen on risking crashing the car going full gas, so I registered, put a drift wheelset on and just had a bit of fun

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Kzonts

You wheeled it pretty good!

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2019 Magnetic Black Roadster
FI Exhaust | EVO-R Rear Diffuser | Artwork Bodyshop Front Splitter | Tuned By Specialty Z