SWIFT vs. EIBACH PROKIT

[project d]

First Question:


Just wondering what people's thoughts are (after having either product installed and tested) on their GT86 / BRZ

Eibach Prokit vs. Swift SPEC R

I understand that Swift spec R has a slightly less stiffer spring rate (both front and rear) to accommodate the OEM damper travel and settings. And both eibach and swift lower the car approx. 1inch

eibachs are slightly less (approx $120-150) less than the Swift springs


Second question:

1) Once the vehicle has been dropped approx. 1 inch, does the OEM susupension setup allow for any camber adjustment or DO I HAVE TO PURCHASE an aftermarket product to allow for some adjustment?

2) Have you encountered any problems with this 1inch drop WITHOUT adjusting for the negative camber?

[Mikepage]

No camber adjustment possible on the rear and on the front.

Nothing you can not live with, with 1 inch of drop and no problem at all.

It's not enough to prematurely used the interior side of the tires also.

You have a lot of springs setup here also : http://www.ft86club.com/forums/showthread.php?t=53303

[zooki]

I have had the Eibachs on my car for about 30,000 miles now. I put adjustable camber bolts in the front, nothing in the rear. With the drop the rear had about -2 degrees camber, and I noticed no abnormal tire wear or anything like that. I'm very pleased with them.

[kosoku]

Eibach FTW. Some Eibach employees are on this forum and are very knowledgable.

I don't know much about SWIFT but Eibach has been around for a long time with result to show for it.

[project d]

Awesome thnx for the input !

[congee]

Originally Posted by zooki

I have had the Eibachs on my car for about 30,000 miles now. I put adjustable camber bolts in the front, nothing in the rear. With the drop the rear had about -2 degrees camber, and I noticed no abnormal tire wear or anything like that. I'm very pleased with them.

Did you upgrade your struts and sportlines or pro kits?? and any pothole issues in texas?

30,000 miles is pretty awesome. I've been told that springs only last up to 10,000 miles.

[fooddude]

Eibach's are actually much softer than the Swifts. Pro Kit is 3.6kgmm in front. Swift SpecR is 4.5kgmm front.

I'd easily go Swift Spec-R or RCE Tarmac/Yellow for performance. Those 2 are the only lowering-springs that are focused on actual higher performance and not just stance.. and are the firmest lowering-springs currently available.

All the other 100's of lowering springs available have front rates in the 3'ish/kgmm (sometimes even less) range: too soft for too low a stance = bumpstop kisses...mmmuah!

[zooki]

Originally Posted by congee

Did you upgrade your struts and sportlines or pro kits?? and any pothole issues in texas?

30,000 miles is pretty awesome. I've been told that springs only last up to 10,000 miles.

I put them on the stock struts. Still working fine. I thought about upgrading soon, but I'm thinking a new Mustang is in my future(depending on how they drive). I've never heard this 10,000 mile thing.

[Racecomp Engineering]

Swift Spec R are very firm...you may be thinking about Swift Sport which would be more comparable to Eibach Pro-kit.

I would not run Swift Spec R on the stock struts.

- Andy

[wparsons]

^^ Good advice. I'm running Swift sports on stock struts and they're great so far (only been on for a couple weeks, and a weekend of autox) but no complaints at all. I'm not sure I would want to go stiffer on stock struts/shocks though.

Whoever told anyone that springs only last 10000 miles should be smacked, that's absurd. I would be on my 5th set of springs now if that were true.

There is zero camber adjustment front or rear stock. You won't gain much camber up front from a drop alone, but you will notice it in the rear.

[Mikepage]

Originally Posted by wparsons

^^ Good advice. I'm running Swift sports on stock struts and they're great so far (only been on for a couple weeks, and a weekend of autox) but no complaints at all. I'm not sure I would want to go stiffer on stock struts/shocks though.

Whoever told anyone that springs only last 10000 miles should be smacked, that's absurd. I would be on my 5th set of springs now if that were true.

There is zero camber adjustment front or rear stock. You won't gain much camber up front from a drop alone, but you will notice it in the rear.

I have modified my post concerning camber adjustment, thank you, i was not sure before.

[Jmonty]

Originally Posted by Racecomp Engineering

Swift Spec R are very firm...you may be thinking about Swift Sport which would be more comparable to Eibach Pro-kit.

I would not run Swift Spec R on the stock struts.

- Andy

Why, I just installed the Spec R springs so far so good? what issues do you think I may run into?

[Racecomp Engineering]

Originally Posted by Jmonty

Why, I just installed the Spec R springs so far so good? what issues do you think I may run into?

The rear spring rate is too firm for the stock rear dampers. It'll be OKAY but it's far from ideal. I might not expect durability problems, just a little bounciness on roads that aren't smooth and an underdamped feel (because that combo IS underdamped).

Our RCE Tarmac springs have similar rates so this is no knock against Swift, but we just know from looking at the shock dyno of the OEM dampers that those rates aren't a good match. They'd be great with Koni or maybe Bilstein Sport. We'd recommend Swift Sport or RCE Yellow instead if using stock dampers.

- Andy