List of 46mm Piston Coilovers - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Speed Junkie · 04-30-2019, 10:15 PM

So I’m looking to compile a list of 46mm piston coilovers. There’s a company that can revalve them with Bilstein 46mm pistons so I’m looking to make a list of the coilovers that use this size piston. Essentially to make it easier to source cheap used ones to use for revalving. I know BCs are one. There was a thread years ago on some other forum where they figured out the factory they (BC, D2, Ksport, etc) were coming out of but I don’t know if any of it is still accurate. I know Bor-Chuann makes BC but I don’t know if they manufacture any other different brands.

Speed Junkie · 05-07-2019, 09:54 AM

For the record, directly from Fortune Auto:

Gen. 1 through 3 pistons are 51mm
Gen. 4 through 7 pistons are 47mm

04-30-2019, 10:15 PM	#1
Speed Junkie Leaky Injector Join Date: May 2015 Location: Harrisonburg, VA Posts: 110 Trader Rating: (0) Feedback Score: 0 reviews	List of 46mm Piston Coilovers So I’m looking to compile a list of 46mm piston coilovers. There’s a company that can revalve them with Bilstein 46mm pistons so I’m looking to make a list of the coilovers that use this size piston. Essentially to make it easier to source cheap used ones to use for revalving. I know BCs are one. There was a thread years ago on some other forum where they figured out the factory they (BC, D2, Ksport, etc) were coming out of but I don’t know if any of it is still accurate. I know Bor-Chuann makes BC but I don’t know if they manufacture any other different brands.

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05-07-2019, 09:54 AM	#2
Speed Junkie Leaky Injector Join Date: May 2015 Location: Harrisonburg, VA Posts: 110 Trader Rating: (0) Feedback Score: 0 reviews	For the record, directly from Fortune Auto: Gen. 1 through 3 pistons are 51mm Gen. 4 through 7 pistons are 47mm