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 Post subject: Re: Bobs BRZ
PostPosted: Fri Mar 09, 2018 4:13 pm 
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I Say: Ozfoz Courier Service - Newcastle Office
Vehicle: MY09 XT Premium

Posts: 1659
Location: Newcastle
Looking good Bob!!


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 Post subject: Re: Bobs BRZ
PostPosted: Mon Mar 12, 2018 9:07 pm 
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I Say: Do or do not, there is no try.
Vehicle: MY17 BRZ, MY11 BT-50

Posts: 16212
Location: Medowie (near Newcastle), NSW
So.....not too many positives from the weekend. I learnt a bit about the car (in near stock form) and brought it home straight without it sitting in a puddle of its own fluids.

Run #1 I'd underestimated the amount of heat based inflation the AD08R's would do, so it felt like I was driving around on marshmallows. The car has a lot more roll on the track than I'd felt on the road (expected) and the brake pedal went a bit long by the end of the session (brake fluid giving up). The time was slow, but a fair bit of time was spent just trying working out what gear was best for each corner, while even slower cars managed to get int he way (even one with 8 more cylinders).

Run #2 was a lot better, but under heavy braking the car started to shudder, felt through the steering wheel. It's hard to go fast once you lose a bit of confidence in the middle pedal.

I went for a drive on the road after this session and after a few stops from 100 if felt okay.

Run #3 and things got worse. Road speeds (100 km/h) are not track speeds. The vibration under braking became pretty bad so I called it quits.

Back in the pits I checked the pads and they actually looked okay. The EBC reds had to work hard but they looked fairly normal. The rotors will be coming off this week and going to a specialist to check them out.

What did I learn? Driving a low(ish) powered non-AWD car is going to require some finesse, but as long as I'm learning something that is fine for this season (with the car so close to stock). Before the next meeting I'll be putting better brake fluid in and adding a few mods.
1. oil cooler - oil temps up near 130 aren't ideal.
2. stiffer shifter springs - makes the shift across the gates (2nd to 3rd etc) more positive and you have to shift mid corner in this car. Short shifting is giving time away.
3. MCA traction mod kit - supposed to let you get on the throttle a bit harder by changing the rear geometry. Losing traction out of a corner looks sweet but is slow and you're giving time away.

I've got a set of EBC yellows that I'll run in on the road as well as there are some big stops at SMSP and the reds may not be up to it. They'll be fitted when I flush the stock brake fluid out this weekend (Motul RBF 660 going in). I've still got the stock rotors so they will be up front while I sort out what was going on.
The set up I ran for the camera was a little low too, there was way too much glare and I'll be moving it higher.

One thing for sure, the car makes good power (for what it is). There was a supercharged 86 in the same group (sprintex supercharger fitted by MRT, but running on 98) and it didn't drive away from me down the straight.

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New Ride MY17 BRZ Last Ride Image Previous Ride Image


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 Post subject: Re: Bobs BRZ
PostPosted: Mon Mar 12, 2018 10:41 pm 
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I Say: Car mods are like OddBodz, you got to collect them all! -------------------------------------
Vehicle: MY05 STi swapped sled

Posts: 17563
Location: Spearwood Perth WA
EBC yellows and Motul 660 fluid is the combo i last ran on my car. And is the best brake combo ive tried so far. But in saying that, ive only ever had 3 or 4 different sets of pads.

Fluid was a big one for me. Boiling castrol react dot-4 while leaning on it out on the track sure doesnt feel good.

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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 6:28 am 
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Vehicle: MY09 XTP & MY16 BT50

Posts: 2435
Location: S.E. Melbourne
It's a fun learning experience isn't it? You guys know it well!

But it's good now that you had a feel of it on track, and now know what areas to work on with the car. When's the next day? Haha


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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 10:44 am 
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Posts: 10
Location: Los Angeles
That is an amazing looking ride you have there. Thanks for sharing pics. That blue just stands out nice.


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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 12:37 pm 
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I Say: Do or do not, there is no try.
Vehicle: MY17 BRZ, MY11 BT-50

Posts: 16212
Location: Medowie (near Newcastle), NSW
Thanks.

The EBC yellows will do for this car. I was running blues on the Impreza and they were toast after 6 sprints (in a 7 event season).

Turns out I was 71st out of a field of 96. A bit different from being in or near the top 10 :lol:

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New Ride MY17 BRZ Last Ride Image Previous Ride Image


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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 2:50 pm 
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Vehicle: 00 gt

Posts: 250
Location: HerveyBay
I found my mazda liked neutral front toe and a little toe in on the rear. Kept the rear end stable and could get on the gas early.

Maybe greater negative camber in the rear end could help with the oversteer?

Adjustable sway bars with a bit harder on the front?? Is there some subtle difference with the ts/ toyota model if you need to keep it stock?


Last edited by whitfoz on Tue Mar 13, 2018 3:04 pm, edited 1 time in total.

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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 3:03 pm 
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I Say: Do or do not, there is no try.
Vehicle: MY17 BRZ, MY11 BT-50

Posts: 16212
Location: Medowie (near Newcastle), NSW
whitfoz wrote:
I found my mazda liked neutral front toe and a little toe in on the rear. Kept the rear end stable and could get on the gas early.

Maybe greater negative camber in the rear end could help with the oversteer?


Camber is non-adjustable at both ends on these cars (in standard form). I'll try the MCA kit that I've had longer than I've had the car, they seem to know what they're doing.

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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 4:07 pm 
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I Say: Rumo is about to get raped
Vehicle: White 04 JDM bitza

Posts: 9725
Location: Perth
Be a strange feeling starting from scratch again !

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 Post subject: Re: Bobs BRZ
PostPosted: Tue Mar 13, 2018 4:50 pm 
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Vehicle: 00 gt

Posts: 250
Location: HerveyBay
Just had a read of the mca kit. Sounds ideal if you want to do track work. Suppose factory designers wanted you to feel like you could have some "fun" with a loose tail

At least you will know what difference it makes next time you take it out.


Last edited by whitfoz on Tue Mar 13, 2018 8:26 pm, edited 1 time in total.

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