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Jianlun · 07-19-2021, 05:18 AM

Use Google translate.

https://car.watch.impress.co.jp/docs...n/1338876.html

Omg omg more tidbits! Notable mentions that I didn't catch previously (correct me if I am wrong cos it's kinda interpreting from Google Translate results):
1. The brz alu front upright is 1.5kg lighter per corner than the GR cast iron piece. But GR say cast iron more responsive (go figure... or they use cast iron cos aftmkt gonna change to billet anyway hahah).
2. Slight offset seating position ie steering wheel not aligned to driver, now that the driver and front passenger are placed 7.4mm closer together (to centralise the mass).
3. Brz front swaybar is 18.3mm and hollow. GR is 18mm and solid.
4. Rear trailing arm bushing for GR is more compliant. Brz uses stiffer ones cos Subaru do not like geometry change.
5. Rear subframe stiffness up 70%. Together with the
+60% front axle and +50% torsional rigidity that we see in press kits.
6. Pistons are 56g heavier due to 94mm vs 86mm diameter. Con rod now split horizontally cos they found the diagonal split has some oil lubrication problems.
7. Fuel starvation problem cured by a bigger lifter pump on right saddle tank and bigger lines.
8. Carbon synchros in 4th gear and some detail changes in the shifter for better shifting across gates.
9. The author (who races brz 86) says torque dip is gone, steering is more responsive. With 86 sharper/agile/busy and brz more stable.
10. And yes. There is artifical.sound.... I quote the article below (via Google translate)

"It is the existence of active sound control that supports it. This system, which lets you hear the power of the middle rotation range of 200Hz to 400Hz and the power of high rotation of 600Hz or more from the speaker after removing the miscellaneous taste, is a beat that seems to be a rotary engine, although the manufacturer is different It's interesting because it develops a sound that works."

Anyway the author/master-at-work:

https://car.watch.impress.co.jp/docs/news/1338901.html
Same author's review of the GR86 one make series prototype vehicle.

07-19-2021, 05:18 AM	#25
Jianlun Senior Member Join Date: Sep 2018 Drives: GR86 RC Location: Singapore Posts: 203 Thanks: 84 Thanked 182 Times in 93 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Use Google translate. https://car.watch.impress.co.jp/docs...n/1338876.html Omg omg more tidbits! Notable mentions that I didn't catch previously (correct me if I am wrong cos it's kinda interpreting from Google Translate results): 1. The brz alu front upright is 1.5kg lighter per corner than the GR cast iron piece. But GR say cast iron more responsive (go figure... or they use cast iron cos aftmkt gonna change to billet anyway hahah). 2. Slight offset seating position ie steering wheel not aligned to driver, now that the driver and front passenger are placed 7.4mm closer together (to centralise the mass). 3. Brz front swaybar is 18.3mm and hollow. GR is 18mm and solid. 4. Rear trailing arm bushing for GR is more compliant. Brz uses stiffer ones cos Subaru do not like geometry change. 5. Rear subframe stiffness up 70%. Together with the +60% front axle and +50% torsional rigidity that we see in press kits. 6. Pistons are 56g heavier due to 94mm vs 86mm diameter. Con rod now split horizontally cos they found the diagonal split has some oil lubrication problems. 7. Fuel starvation problem cured by a bigger lifter pump on right saddle tank and bigger lines. 8. Carbon synchros in 4th gear and some detail changes in the shifter for better shifting across gates. 9. The author (who races brz 86) says torque dip is gone, steering is more responsive. With 86 sharper/agile/busy and brz more stable. 10. And yes. There is artifical.sound.... I quote the article below (via Google translate) "It is the existence of active sound control that supports it. This system, which lets you hear the power of the middle rotation range of 200Hz to 400Hz and the power of high rotation of 600Hz or more from the speaker after removing the miscellaneous taste, is a beat that seems to be a rotary engine, although the manufacturer is different It's interesting because it develops a sound that works." Anyway the author/master-at-work: https://car.watch.impress.co.jp/docs/news/1338901.html Same author's review of the GR86 one make series prototype vehicle. Last edited by Jianlun; 07-19-2021 at 06:07 AM.