AlWakRa 370z's Journal - PW from Qatar

Rusty

The rotors have surface cracks. What you can do is to have the rotors turned 0.010", and then doing a dye penetrant inspection on them to see if the cracks was removed.

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浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html

AlWakRa

Finished the car today, and corner balanced it as quick as possible, didn't try to reach perfect 50%. I modified the tie rods to give better clearance with the wheels. I found out that the car has gone 40 kgs less in weight, I think wheels and coilovers made a difference.

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AlWakRa

So last trackday was a very great day, it was very exciting, getting 3 seconds off of my best time, and a friend who is getting ready to join tcr drove it and got 2:20.3, but definitely he was going to do sub 20 if there wasn't crowd, and I will work my way out to get it.

My impressions of the coilovers, on street they are very comfy, maybe a little harder than stock, but not harsh at all with soft compression setting. I tried it on an empty roundabout and suddenly I couldn't wait for the trackday. On the track, the front side was very planted and responsive, the rears were bouncy, feels like they are bottoming out, I contacted MCA to check if they went very soft on the rears or there is an issue.







Here I got 2:21.5 in the first lap

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AlWakRa

Here is the video where my friend got 2:20.3 opt 2:20.2, so I will be aiming to beat his time, currently standing at 2:21.5 opt 2:21.0. He will be going to TCR Europe this season after he dominated the local championship, hope he will do well in his second international competition. He went to 24hr race in Spa before and his team got first.




Also, I found this video for a Cayman GT4 who was following me in my first session, first time to drive my car with the new setup, but I think currently, my car can go head on with GT4s, faster in turns, but GT4 has better power.

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Martijn_b

very nice! keep posting :-)

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Instagram: Boosted_Fairlady

Hotrodz

Agreed!

Sent from my SM-G965U using Tapatalk

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Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:|Fast Intentions 3" TT-TDX|SpecialtyZ/Fast Intentions 72 Row Oil Cooler|SZ 6 Puck Clutch & Flywheel|3GsCustoms|Z1|Wavetrac|Hotchkis|Whiteline |Blitz|Fortune Auto 500|Fujimura|SPL|H&R|TK|TWM|RPM Rollbar|Sparco|Next Level Performance|TrackSpec|AeroFlow Dynamics|Pioneer|

AlWakRa

Thank you for support.

Updates:
- I will borrow a Sparco Evo 2 US from a friend, I bought a buddy club seat rail which should arrive mid week.
- Tomorrow I will receive BFG R1 S in 285/30/18, I will use them for Autox, also, I will get a session on them in track, other sessions, I will use r888rs.

https://www.instagram.com/p/BvkSILNnhwx/

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cv129

Wow, that GT4 driver was all business, loving that dive pass on the GTR. Took him a full lap and the long straight to get through you, you are doing the Z34 a great service!!!!

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Setrab | RE-71 | SPL | JRZ | Nismo | ARK | Whiteline | RacingBrake | CJM Oil Pan | Ti shield

madwi

Keep us posted on the rear coils soft feel. great driving and videos, as always.

AlWakRa

cv, the exit speed was on a different level, I was going to continue behind him, but I have 2 lap limit before the car overheat even with all the work, it is still not perfect in that regard, I will try 50 weight next time.


Madwi, I have been in contact with Josh Coote, the owner of MCA, he is a very knowledgeable guy, he explained to me that soft rear springs are mean that way to give leverage compared to front and to put power down easily. Also, he said it shouldn't be bouncing, but before changing anything, I need to check the full adjustment range. So, until next trackday, I wouldn't be able to give any more feedback, I tried on empty parking lot, with softer setting, it doesn't bounce, but will appear in track if it was bottoming out, which now I think it isn't the case, because it should be bouncing in the street as well, but it was very comfy.

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AlWakRa

More updates

Getting new BFG R1S in 285/30/18 for Autocross



They are on



Also, getting my seat removed and installed a Sparco Evo 2 US.





Got some issues with the install, as I couldn't go as low as I wanted because the shell of the seat doesn't clear the rails and I cannot use the lowest setting. Also, I couldn't use the rails until I flipped one of the side mounts to clear the seat.

And here is the some photos of the car with the tires, I think I need to lower it more but I don't want to do another alignment and corner balance. Rightnow, I am sitting at -3.25 front camber and -2.00 rear camber.

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AlWakRa

First test for the slicks and seat, it is much nicer to drive with seat support, but not nice to get in and out


I did an Autox event, sadly I got only 4 runs, and one of them was dump, yes it rains over here. Also, still not able to use full grip of the slicks, because the layout was very narrow.

My best run



One fun experience

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madwi

Keep us updated on your findings as you get adjusted to them.

AlWakRa

I went to a trackday today, (yesterday if I want to be exact, it is 4:00 AM right now)

The track was dusty, the weather wasn't ideal (around 30C -10 degrees higher than last trackday-),

I tried softer settings on the suspension, the bouncing has been less visible, but still there is some instances of snap oversteer, but I have the big issue of changing a lot of the settings this time I had more front camber (-3.25) and different tires (BFG R1 S 285/30/18)

I felt the tire height is a big disadvantage to me, although the tires felt very sticky, but many variables to get an apple to apple comparison by times, I didn't beat my best time, but I was close.


Some videos from today.

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AlWakRa

Last update of the season, we are reaching summer and the weather temps will rise from here onward.

I did two events, one AutoX and the other was a trackday, I got more feel about the suspension.

On AutoX, I had 4 runs, I started it with a run with soft settings, the car was like a boat , stiffened the fronts with soft rears, it was tighter in front, but squats when I turn and accelerate, until I maxed the stiffness, and the car felt very tight and responsive, I have been in a very tough class, the class simply is any car with 2.5-3.7 engines NA or 1.6-2.5 FI, all other mods are open without restriction, many modified cars and luckily I got 3rd place. This is my best run




Then before the track, I lowered the rear a little and re-aligned the car, went with -2.8 front and -1.85 rear, toe and caster the same as before, I returned the Nexens, and on the track I tried to feel the suspension rather than trying to get lap times, started with very soft rears and stiffened the rears, my front left fender was rubbing, with soft setting, the car was less likely to bounce, which I concluded that the issue was due to stiff setting, but while the car was putting the power well on exit, I felt the rear was too soft to my liking, it squats a lot which I felt sometimes it disturbs the weight shifting. I liked it more with stiffest setting, although it was bouncing, but it was putting the power efficiently, so maybe the track I attend is very smooth that I need to get stiffer rear springs, I will contact Josh to see what we can do, I think I will go to 9KG at rear (the stiffest he suggest for a car with aero) and no need to revalve the shocks.


This is a short session from last track




Some photos I got

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