Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

churchx · 05-28-2020, 04:54 AM

So, RCE with "latest sets" spoke about MP22, not MP21? So "new" - 5kg/mm springs, that were optional choice for MP21, now default? Or it's "We make sure to specify that at this point" - that is still option one needs to ask for when ordering?
AFAIK
MI20: 6kg square & included camberplates in set
MP20: "new" with 4kg front, 3kg rear, camberplates became optional
MP21: should be same as MP20, but TUV certified and with extra rubber seats for NVH (though according one MP21 manual seems that defaults might be not 4/3, but 4 square, and funny, but recommended spring preload also differs even for front with same rates.). And one could optionally order with 5kg square rates.
MP22: 5kg square by default, or not?

Seems PITA to hunt for specs that simply should be listed in product description page or linked docs on manufacturer website.

RayRay88: i recall seeing someone saying that usually good coilover valving should be able to accomodate +/-30% spring rate change. But i don't know for sure, if MP2* shocks still have same valving as MI20 had or not, saw contradicting info on that. If track on sticky tires is priority, imho custom valving might be better option. Or something like these BTO ones with 9/7 rates

.

05-28-2020, 04:54 AM	#15
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,336 Thanks: 698 Thanked 2,091 Times in 1,437 Posts Mentioned: 53 Post(s)	So, RCE with "latest sets" spoke about MP22, not MP21? So "new" - 5kg/mm springs, that were optional choice for MP21, now default? Or it's "We make sure to specify that at this point" - that is still option one needs to ask for when ordering? AFAIK MI20: 6kg square & included camberplates in set MP20: "new" with 4kg front, 3kg rear, camberplates became optional MP21: should be same as MP20, but TUV certified and with extra rubber seats for NVH (though according one MP21 manual seems that defaults might be not 4/3, but 4 square, and funny, but recommended spring preload also differs even for front with same rates.). And one could optionally order with 5kg square rates. MP22: 5kg square by default, or not? Seems PITA to hunt for specs that simply should be listed in product description page or linked docs on manufacturer website. RayRay88: i recall seeing someone saying that usually good coilover valving should be able to accomodate +/-30% spring rate change. But i don't know for sure, if MP2* shocks still have same valving as MI20 had or not, saw contradicting info on that. If track on sticky tires is priority, imho custom valving might be better option. Or something like these BTO ones with 9/7 rates .