S14 lowering springs on Q45?

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ash10hunt
Posts: 37
Joined: Thu Mar 11, 2021 6:29 pm
Car: 1999 Infiniti Q45

S14 lowering springs on Q45?

Postby ash10hunt » Tue Jun 22, 2021 2:02 pm

I'd like to lower my '99 Q45, but I'd rather not dump a whole ton of money on coulovers. I've read on other threads that some of the suspension components are interchangeable with other Nissans, so would it be possible to switch out my current springs for s14 lowering springs? I know it's meant for a lighter car, and I'm not too concerned about comfortability, but if it works I'll take it.


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TheDeadKing
Posts: 42
Joined: Sun Sep 12, 2010 8:31 am
Car: 1994 Nissan 300ZX & 2001 Infiniti Q45t
Location: NoVA, VA

Re: S14 lowering springs on Q45?

Postby TheDeadKing » Tue Jun 22, 2021 7:00 pm

No, use the correct springs. I'm using RS-R's.

https://www.rhdjapan.com/rs-r-down-susp ... fhy33.html

ash10hunt
Posts: 37
Joined: Thu Mar 11, 2021 6:29 pm
Car: 1999 Infiniti Q45

Re: S14 lowering springs on Q45?

Postby ash10hunt » Wed Jun 23, 2021 4:03 am

Awesome, thanks for the info.

ash10hunt
Posts: 37
Joined: Thu Mar 11, 2021 6:29 pm
Car: 1999 Infiniti Q45

Re: S14 lowering springs on Q45?

Postby ash10hunt » Wed Jun 23, 2021 3:21 pm

Again thanks. I think I going to get these but I have a few questions. Do they ride nice? How easy was installation? And how long was the shipping do you estimate?
Thank you

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TheDeadKing
Posts: 42
Joined: Sun Sep 12, 2010 8:31 am
Car: 1994 Nissan 300ZX & 2001 Infiniti Q45t
Location: NoVA, VA

Re: S14 lowering springs on Q45?

Postby TheDeadKing » Thu Jun 24, 2021 12:59 pm

Yes, these springs ride nice. They're not as comfortable as the OEM active suspension, but it's still a comfortable ride and nowhere near as harsh/stiff as coilovers. I also replaced the shocks and OEM components when I installed the RS-R springs.

Installation was long and difficult compared to installing coilovers; however, the tradeoff is better ride quality on a shock & spring setup.

Shipping was a few weeks. I believe the springs are made to order and then it takes a couple weeks to ship from Japan to the US.

Checkout my recent suspension thread for more information:

q45-fgy33-touring-active-suspension-sho ... 29285.html

ash10hunt
Posts: 37
Joined: Thu Mar 11, 2021 6:29 pm
Car: 1999 Infiniti Q45

Re: S14 lowering springs on Q45?

Postby ash10hunt » Thu Jun 24, 2021 5:12 pm

That's awesome. Thank you!

Ryantzer
Posts: 91
Joined: Sun Aug 11, 2013 5:37 pm
Car: 1990 Infiniti Q45
Location: Phoenix, AZ

Re: S14 lowering springs on Q45?

Postby Ryantzer » Fri Jun 25, 2021 3:46 pm

TheDeadKing wrote:
Thu Jun 24, 2021 12:59 pm
They're not as comfortable as the OEM active suspension, but it's still a comfortable ride and nowhere near as harsh/stiff as coilovers.
If your coilovers are too stiff then your springs have too high of a spring rate. Coilovers can provide just as comfortable of a ride (or ever softer if you prefer) as the stock suspension if the spring rates are chosen properly and the shock valving is appropriate for the vehicle.


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