Swift Prototype Install
 

I'm helping Swift with their R&D for the BRZ springs.

They installed the 1st prototype (1st picture) on my car last July with an estimated .8" front and .6" rear.

2nd prototype (2nd picture) was installed today with an estimated 1" for both front and rear. Although, rear seem to have no significant drop compared to the first prototype.

They will install the full production version on my car next month and should sit a bit lower than this 2nd prototype to show the supposed real drop on both the front and rear.

Can't wait for Swift's announcement on official drop and spring rates for the full production version. :party0030:

group buy? spring rates?

Nice!! And being they are not production I know this will change, but how was the ride with them? Not looking for a full on review, but just a quick comment if you can :)

Thanks,
Rick

looking good man! can't wait to see that brz again!

Can't really comment on the 2nd prototype since I only got it today but as far as the first set goes, it was truly an improvement over the stock suspension.

I felt a stronger connection to the road. Significantly less body roll, firmer but can surely pass as a daily driver.

Definitely stiffer but not to the point that I need to flinch thru potholes and dips. I can say though that I felt the car's tendency to bounce more on spirited driving on severe uneven surfaces.

These are truly great springs from a great manufacturer. This was mentioned before - only good things come from Swift! :thumbup:

Thanks Max! I'll see you on the next meet man! :D

Looks good! Swift makes good products.

You might want to move the decimal place in your first post. .08" --> 0.8"

- andrew

Can you let us know how much camber you gained with this drop? Im really interested in Swift's springs. Been waiting on these for a while.

I emailed Swift the other day and they said their springs are about a month out from retail availability.

I run Swift springs with my DG-5s coilovers in my other car. Needless to say i'm a big fan.

With that said, if you're running their prototype what kind of testing was done? Any actual data logging, shock dynoes, testing different rates? I buy Swifts for many other reasons asides from simply wanting to lower ride height so any additional data would help.

Or perhaps you're just testing for the "street" driveability portion of the development?

Guys from Swift are pretty hesitant to release any info. They did their testing while my car was with them. Don't want to spill any info and piss anyone on their side. As mentioned, they will be releasing the official product and specs next month! :)

I guess i'd be happy knowing what kind of testing they did. We don't need to know the numbers asides from the spring rate (later when available).

Thanks for offering up your car for them to test with. Hoping to hear back soon.

Any updates on these? Eagerly awaiting any info.

imo the best spring manufacturer on the market! :word:

any update on SWIFT and the vendors ?
im in for group buy or just BUY !

update someone - udpate !

I have had them on my coilovers before and have them now on my suby and love them. Their R&D and final product is top notch!

How many different kinds will be available?

Nice! we are having some of these coming in soon!

These are in stock now.

Discuss here for reviews

what are the spring rates?

3kg/mm
4.5kg/mm

http://www.ft86club.com/forums/showp...72&postcount=1

3kg/mm front, 4.5kg/mm rear.

Now I want to see these compare to the RCE

Swift Sport springs installed today on my FRS.

It is my understanding there are two versions, but I don't know this for an absolute fact.
1) A "BRZ" model: 3.8kg/mm Fr; 4.5kg/mm Rr
2) An "FRS" model: 3.0kg/mm Fr; 4.5kg/mm Rr

I have the "BRZ" model 4F912 on box. Weather is icy here today and the car may not have the final alignment for another week. So far the rear is dropped about an inch/25mm and the front only a 1/2-5/8"/13-16mm. This has me concerned... but we shall see.

Whiteline crash bolts and rear upper control arms bushings installed at the same time.

The ones Evasive are selling are 3.0/4.5 so i wonder if the BRZ are still in development or what. Still trying to decide on these plus Koni's or Tein Street Basis. I want a little more drop than the Racecomps provide. I have Tein H Tech already might try them on the Koni's first

If you look at their website, they actually have two part numbers but quote the same spring rate for both:

4T909 T for Toyota?

4F912 F for Fuji?

My information came second hand from Swift when the springs were ordered. I wanted a more balanced spring rate, like the stock BRZ, not pronounced rear biased stock FRS rates. If they had not had a more balanced "BRZ" rate, I would have ordered Racecomp's springs.

The shop that installed the springs measured the spring rates on a Longacre spring tool and I should have those values soon.

Initial impression was the ride is no worse than stock. There looked to be an extremely slight progressive aspect to the construction, but nothing close to as the Eibachs. Quite a bit lighter than the Eibachs as well though.

Not a review I was looking forward to but thanks for the info, guess if my gc purchase don't go thorough ill be set with the rce

The wait was "oh no" such an exagerated bias, why?

The BRZ version which I have is 3.8/4.5, they are right in between Eibach and Racecomp. Stiffer in the front than most and a bit softer in the back than some.

The FRS version has a softer front spring much like the stock FRS. Some people prefer softer front springs and a heavier front bar.

I just went for a 15 minute ride and the ride height on the front seems to have come down a bit. I don't have a perfectly even surface to check. The ride is not bad at all. Still patchy ice and sand on the roads, so no heroic driving.

The rear spring is the one with a slight bit a variable rate, the front is linear from what I can tell.

So my memory or measurements of "before" the install may be suspect, but the shop documented all the changes. Vorshlag Motorsports will publish an in depth report with lots of details/pictures on the their build blog soon.

What the shop measured from center of wheel to bottom of fender opening:

Before / After

LF 14.5" / 13.75" RF 14.5" / 13.5"

LR 14.5" / 13.5" RR 14.5" / 13.38"

So the ride height did drop about an inch.

Again, I used the BRZ spring part number not the FRS part.

Edit - added a picture after proper alignment

With the front Whiteline bolts and rear control arm bushings, this was the best result:
-1.25 front camber
-2.23 rear camber (a bit more than I would like for daily driver)

Vorshlag Motorsports build thread with my car includes spring rate graphs for stock FRS and BRZ springs and the Swift "BRZ" spring.

http://www.vorshlag.com/forums/showt...7516#post57516