Hey guys,

This spring, I'm finally going to tackle the suspension on the R. I have had the stock suspension for a few years now, and I think I'm ready to take the next step considering I'm starting to track the car more and more.

Now, I have done tons of research and settled on 3 different coilover models, so I don't need help with that. However, none of the models I chose come from the factory with the spring rates I'm looking for (10K Front, 12K Rear).

So here lies my question:

With the following Coilover models, are any of these able to be retrofitted with my choice spring rates of 10k Front, 12K Rear without having to re-valve of overhaul the shock? I would be using either the respective company's custom rate springs, or Swift custom rate springs to perform the retrofit.

Here are my choices. Keep in mind I am working with some relatively inexpensive Coilover setups here, hence the desire to retrofit and keep within my budget.

1. PIC Select P3


2. Buddy Club N+


3. Apexi N1 Expert Type V



Now I know the PIC P3 already has a 10-12 setup, but the 10K is on the rear. Could I just swap the spring from front to back? As for the others, I'm really not 100% on the spring rates, but I'm pretty sure both the Buddy Club and Apexi have a 10K front, or close to it. I just don't know how high a spring rate these shocks can handle.

Here's a pic of the R just for fun (It's been in storage since September for winter ... I miss it)



Any help / insight would be appreciated.

 

PIC R2 or R3 would be the way to go.

Contact PIC on here, they are the best to deal with. I'm sure if they have 12k rears avalable they will set them up for you.
(the rear and front springs are different lengths)

 

I would go with the PIC's for sure. Besides making a quality coilover they also are very helpful and involved in the community. They should be able to do some spring swapping for you.

I run 12Kf and 14Kr and it's totally fine on the street. Jon(Big Phat R) runs like 16Kf and 18Kr or something like that. His is also smooth as butter on the streets. We both have Spoon N1's and most of the ride quality is determined by the quality of the damper. My old Tein HR coils were like 6 and 8 and the ride quality was complete ***

 

Thanks for help guys.

The reason I decided on a 10K 12K setup was due to the fact that I have driven a few times on the R3's (Baby NSX's ITR), and I love the setup on the track, but I feel the rear end is just a tad lively for the street (my car does see more street than track, but still ... hopefully anywhere from 3-6 lapping days per summer). I like the balance between front and rear, and how the car reacts in turns with the R3's, I just think that a bit lighter spring might make it a bit more bearable. And plus, I'm not running R comps this season and I feel that the 12K 14K R3s would be a little better suited to a car with upgraded pads and R comp tires.

Has anyone tried to order custom rates from PIC? I know I've talked to Al before and he was very friendly.

 

Even if you said no recommendations...I'm still a fan of a Koni/Ground control setup over what you have listed, and price will be the same. You also get a future upgrade path, and with the listed coilovers you'll have to sell to get something else if you decide to go more hardcore.

You could do 8/10 and be well within OTS Koni shock valving. For street tires on a track, that's plenty and it'll retain good street manners.

672lb (12kg) springs in the rear is pushing it for a primarily street-going IMO.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">Even if you said no recommendations...I'm still a fan of a Koni/Ground control setup over what you have listed, and price will be the same. You also get a future upgrade path, and with the listed coilovers you'll have to sell to get something else if you decide to go more hardcore.

You could do 8/10 and be well within OTS Koni shock valving. For street tires on a track, that's plenty and it'll retain good street manners.

672lb (12kg) springs in the rear is pushing it for a primarily street-going IMO.</TD></TR></TABLE>

Thanks for your input

I've always been the intrigued with the GC / Koni setup, but could never get around the fact that the shock body was not threaded and the setup had to rely on the sleeve of the GC. It's a great setup for upgradability and selection, but can it really perform as well in every aspect as a full threaded body coilover? I'm asking because I honestly don't know I know the Koni Sports are a fantastic shock.

Just to give you an idea of how much the car is driven, I put on approx. 2000 kilometers last year. Half of that was driving to the track, and lapping. This year I plan to be much more active on the circuit, so I don't mind somewhat of a stiff ride ... but the 14K rear R3s were a bit much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">Even if you said no recommendations...I'm still a fan of a Koni/Ground control setup over what you have listed, and price will be the same. You also get a future upgrade path, and with the listed coilovers you'll have to sell to get something else if you decide to go more hardcore.

You could do 8/10 and be well within OTS Koni shock valving. For street tires on a track, that's plenty and it'll retain good street manners.

672lb (12kg) springs in the rear is pushing it for a primarily street-going IMO.</TD></TR></TABLE>

This is exactly what I went with. I looked at a lot of different options and settled on Koni/GC setup. I've got a set of OTS Yellows, tomorrow I'm buying some GC perches, and I'll be ordering Swift springs in 8k/10k soon after that. All quality products, and the price all together is very reasonable.