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      11-12-2017, 04:00 PM   #23
Over it
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Hey Andre, did you ever solve this issue?
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      11-12-2017, 04:14 PM   #24
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Yes, suspension settings, alignment and a wing out back.
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      11-20-2017, 02:54 PM   #25
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"Keep in mind, I'm probably pushing 500whp right now"

WOW. What did you do to the Z4 to get 500 WHP? My Z4M has 330 hp at the Crank..
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      11-20-2017, 03:09 PM   #26
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This link should answer your question
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      11-20-2017, 03:16 PM   #27
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I saw that. I thought you have a final spec sheet that tells the current setup. Looks like you put in a S65 engine.
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      11-20-2017, 04:09 PM   #28
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what wing did you go for and size?

I would say 67 to 71" wing, with big splitter, with stiffer spring rates to compensate, upgrade front sway bar and put in stiffest settings, strut bar, and OEM rear bar.
that will most likely keep your car more neutral.

Alingments, make sure you get more caster over camber.....get as much caster as you can.
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      11-20-2017, 11:52 PM   #29
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Quote:
Originally Posted by asleep636 View Post
I saw that. I thought you have a final spec sheet that tells the current setup. Looks like you put in a S65 engine.
What? You saw "that" but you still think I put in a S65? I thought the title of the thread linked and the "2JZ" plastered all over the build thread would give it away.

The last page includes a dyno chart as well.
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      11-20-2017, 11:58 PM   #30
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Quote:
Originally Posted by AriuSen View Post
what wing did you go for and size?

I would say 67 to 71" wing, with big splitter, with stiffer spring rates to compensate, upgrade front sway bar and put in stiffest settings, strut bar, and OEM rear bar.
that will most likely keep your car more neutral.

Alingments, make sure you get more caster over camber.....get as much caster as you can.
I went with a 57" SARD BRZ wing. My car is stable at speed as long as I'm not under full power (I can cruise at 150 part throttle and it's solid). The issue came down to the extra torque given out by this motor at that high speed, which was probably causing all sorts of dynamics with rear squat, camber changes, and no aero to assist.

I did go stiffer springs (9k fr, 12k rear), more camber front and rear, and stiffer compression/rebound on the dampers. Add the rear wing, and it's been much much better. NOTE: I have more issue on the street where the road isn't flat due to tractor trailers and grooves. Don't ask me when I get to test on public roads...
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