Swift Sport Spring review for ISF! - Page 3 - Club Lexus Forums

Log In 

Swift Sport Spring review for ISF!

Reply
 
 
 
Thread Tools Search this Thread
Old 11-25-10, 11:28 AM   #31
mrsardar
Pole Position
 
Join Date: Mar 2002
Location: Maryland
Posts: 257
Default

When I had my IS 350 I had f sport spring and the alignment was never perfect after installing the spring. So you guys who installed the spring have you ever experienced the same issue.
mrsardar is offline   Reply With Quote
Old 11-27-10, 12:26 PM   #32
mrsardar
Pole Position
 
Join Date: Mar 2002
Location: Maryland
Posts: 257
Default

Past couple of days I have doing a lot of research on Swift Sport Spring and one question i have is how do the OEM stock struts keep up with these springs? i have read few forums on ISx50 where ppl have changed the springs and they have blown out the stock struts.

I hope this is not the case for the IS F.
mrsardar is offline   Reply With Quote
Old 11-29-10, 11:45 AM   #33
cfls
Driver School Candidate
Thread Starter
 
Join Date: Jun 2009
Location: ca
Posts: 16
Default

Yeah well I dont know yet because I put the springs on relatively recently, and no problems yet. Anyways, Swift is known to make the springs using the useable stroke of the shock and within the valving range so I dont think it would be a problem.
cfls is offline   Reply With Quote
Old 11-29-10, 12:09 PM   #34
mrsardar
Pole Position
 
Join Date: Mar 2002
Location: Maryland
Posts: 257
Default

Quote:
Originally Posted by cfls View Post
Yeah well I dont know yet because I put the springs on relatively recently, and no problems yet. Anyways, Swift is known to make the springs using the useable stroke of the shock and within the valving range so I dont think it would be a problem.
Thanks, how about the alignment? Were you able to get it back to OEM spec.
mrsardar is offline   Reply With Quote
Old 12-10-10, 09:13 PM   #35
LexISguy
Lexus Champion
 
LexISguy's Avatar
 
Join Date: Sep 2007
Location: Pembroke Pines, FL
Posts: 2,255
Default

Quote:
Originally Posted by mrsardar View Post
Thanks, how about the alignment? Were you able to get it back to OEM spec.
I have the same question as well? This thread has been a little quiet....
LexISguy is offline   Reply With Quote
Old 12-10-10, 11:17 PM   #36
RavSpec
JDM Wheel Guru
iTrader: (8)
 
Join Date: Jan 2007
Location: NY
Posts: 3,583
Default

yeah, it's a moderate drop, getting back to OEM spec is quite easy.
__________________
(W) www.ravspec.com | (W) www.jdmwheel.com
(E) sales@ravspec.com
(P) 631-586-3520
facebook.com/ravspec

WORK Wheels, Weds Wheels, RAYS, ADVAN, SuperStar, Lowenhart

RavSpec is offline   Reply With Quote
Old 12-11-10, 10:39 AM   #37
KJH
Pole Position
 
Join Date: Jul 2007
Location: California
Posts: 346
Default

Quote:
Originally Posted by RavSpec View Post
yeah, it's a moderate drop, getting back to OEM spec is quite easy.
Rav,

Can you confirm the drop as posted earlier in this thread, one-inch in front and 0.6-inch in the rear? Conducting suspension/wheel/tire research so any reliable information you can provide in this regard would be greatly appreciated. TIA,
KJH is offline   Reply With Quote
Old 12-11-10, 12:38 PM   #38
houstonT
Lead Lap
 
houstonT's Avatar
 
Join Date: Jan 2004
Location: Texas
Posts: 520
Default

I am also interested in the drop amount being confirmed.
houstonT is offline   Reply With Quote
Old 12-14-10, 09:18 AM   #39
flipside909
Lexus Connoisseur
 
flipside909's Avatar
 
Join Date: Mar 2001
Location: L(F)A, California
Posts: 19,109
Default

Quote:
Originally Posted by cfls View Post

Now I've been thinking of lowering my car with lowering springs for a while but there isn't really that big of an option out there.
I was doing some research and found that the most popular springs out there are Eibach and Tein springs.
Quote:
Just from google I can find endless number of posts some even saying that the Swift springs handle better than some of the lower end coilovers, especially in the Mitsubishi Evolution crowd.
So your research is based off of Google?

Quote:
With the tein and the EIbach I feel like they lose a little bit of the ISF feel. But these springs feels like it was a good step forward for my vehicle.
Now do you know this for a fact or are you referring to your research from Google? Do you know for a fact the Swift springs perform better than either Tein or Eibach? Have you installed the other springs on your ISF (not other sport compacts) to make an unbiased assumption of Swift vs. the others? It is a fact all springs sag overtime, including OEM.

The Evo is a fine machine, but the ISF and EVO aren't really in the same class. Engine size, drivetrain layout nor do they handle the same. Thanks for sharing.

Last edited by flipside909; 12-14-10 at 09:22 AM.
flipside909 is offline   Reply With Quote
Old 12-15-10, 09:52 AM   #40
Joe Z
Lexus Fanatic
iTrader: (8)
 
Joe Z's Avatar
 
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 12,081
Default

^^ subscribed

Joe Z
Joe Z is offline   Reply With Quote
Old 12-17-10, 10:04 AM   #41
FIGS
The Maker
iTrader: (11)
 
FIGS's Avatar
 
Join Date: May 2009
Location: CO
Posts: 2,058
Default

I think it is very hard to say one thing is better than another, even if you have personal experience with both products, because there are too many variables. The largest variable is personal preference and the perception that goes with any purchase. Not many many people want to feel unsatisfied with a recent purchase so its hard to weigh the benefits objectively. Suspension parts in general are very subjective to the driver because not everyone has the same skill or drives the car to the same limits.

I can find very little data on HS5.TW material Swift uses probably because it is made up by Swift. Whereas at least the BC springs you can get a MSDS on SAE9254. But that said Swift has always had a good reputation though and that means a lot of "good" and less "bad" experiences out there. So in my book I think they do their homework on each application and try to get it right. All materials fatigue, especially in this type of application and usually you have a cycle count vs deformation spec. 1%, 5% etc.

In terms of alignment why does everyone always ask if they can get it back to OEM spec? If its lowered, its not at OEM spec anymore and the suspension is going to cycle differently. So in general "OEM spec" does not apply to lowered cars. Plus within OEM spec you have such a wide range its not a accurate quantifier. You have toe adjustment is all in front and rear unless you pick up some adjustable parts like I will release soon. There should be plenty of toe adjustment for drops in that range to equalize the toe, the issue will be things like bump steer and tire wear over time. Even if toe is in spec, the link angle is steeper so it will steer more for each upstroke that before. That is why a longer link and subsequently a longer arc length is desired.

Fig
__________________
<a href=http://www.figsengineering.com target=_blank>
Redefining Aftermarket Parts Since 2001

-- We are your Lexus suspension experts--
BCR-KW-PENSKE-OHLINS
LINKS-ARMS-BUSHINGS
BBK's, Carbotech pads
OS GIKEN
FABRICATION
PPE Master Distributor. Headers/Exhaust
Instagram @FIGSENGINEERING
FIGS is offline   Reply With Quote
Old 12-17-10, 01:27 PM   #42
GSteg
Rookie
iTrader: (15)
 
Join Date: Jul 2005
Location: CA
Posts: 15,697
Default

HS5.TW is Swift's own creation so it's highly unlikely we'll ever find out their trade secret.

Very little information on deformation rate is provided by Swift (as expected), but I knew someone who put them through 1 million cycle and at the end, the spring rates were less than 5lb/in from the original. That to me says a lot about the quality. Most other springs are only put through 500,000 compression, and really crappy springs break before they reach half that cycle. OEM has to survive >1 million cycles with reasonable deformation rate to be stamped with approval.

I pulled off my HKS springs with less than 20k miles already they were all 1/8" shorter than what they were suppose to be. Last time I measured my Swift springs, they were all exactly the same height as when I first got them.

One thing I didn't like about the Megan/BCR springs was the consistency. I tested a few a while ago and they weren't exactly linear. Then again I wouldn't be surprised if my HKS did just as bad on the spring dyno. I'm almost curious enough throw them on the dyno.
GSteg is offline   Reply With Quote
Old 12-18-10, 01:17 AM   #43
KI_GSE21
Lead Lap
iTrader: (5)
 
Join Date: Apr 2009
Location: I8TOKYO
Posts: 646
Default

Check this out:

http://www.swiftsprings.com/advantage.html

Very detailed technical specs and design of Swift Springs.
KI_GSE21 is offline   Reply With Quote
Old 12-20-10, 02:15 AM   #44
flipside909
Lexus Connoisseur
 
flipside909's Avatar
 
Join Date: Mar 2001
Location: L(F)A, California
Posts: 19,109
Default

Quote:
Originally Posted by GSteg View Post
I pulled off my HKS springs with less than 20k miles already they were all 1/8" shorter than what they were suppose to be. Last time I measured my Swift springs, they were all exactly the same height as when I first got them.
The million dollar question is how long have you had your Swift springs on your 2GS and how long ago was this?
flipside909 is offline   Reply With Quote
Old 12-20-10, 10:09 AM   #45
GSteg
Rookie
iTrader: (15)
 
Join Date: Jul 2005
Location: CA
Posts: 15,697
Default

Quote:
Originally Posted by flipside909 View Post
The million dollar question is how long have you had your Swift springs on your 2GS and how long ago was this?

Good question. I've probably had them on for around 10k miles; however, I actually have more preload on these springs. The HKS was used with almost no preload. Regardless, these Swift springs have been known to sag way less than most other springs. HKS Japan uses Swift springs on many of their race cars because they're superior to their own. The HKS, like many other standard springs, are nothing special. I've seen JIC, Megans, etc springs all sag with relatively low mileage. For most daily drivers, it's probably no big deal and one will most likely not notice a 1/16" sag.
GSteg is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Swift Sport Springs for Lexus Models ModInJapan Club Lexus Vendor Marketplace 216 09-21-16 02:29 PM
Swift lowering springs: 08+Lexus ISF, IS250/350 b2designs Club Lexus Vendor Marketplace 86 09-20-16 08:52 AM
▀▄▀▄ Vivid Racing | Swift Springs Available for Lexus Models! VividRacing Club Lexus Vendor Marketplace 1 08-08-16 04:03 PM
Special Event Partial sponsorship from Swift Springs on Lowering Springs! ModInJapan CL Vendor Products for 3IS 0 03-11-16 01:36 PM
Swift Springs | Suspension | Lowering Springs | Need4Speed Motorsports Need4Speed Club Lexus Vendor Marketplace 9 03-12-14 03:20 PM


Tags
hypercoil, isf, lexus, lowered, lowering, performance, review, sc430, spings, sports, spring, springs, suspension, swift, tein

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -7. The time now is 01:51 AM.


Copyright © 2000-2016 Internet Brands, Inc. All Rights Reserved