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Old 08-15-2012, 02:31 AM   #1
JASWRX
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Default Mach V Springs

UPDATE- READ LASTEST POST! Mach V Springs installed, and still rubbing.

I have a 02 WRX with 4 year old Swift Springs and brand new OEM WRX shocks. I also have EVERY single bushing made for the car + Swaybars.

I have 245/17/40 and I get a tiny bit of rubbing when cornering, especially when people are in the car!

Not to mention, I feel as if I could get a little more confortable ride.

I have done tons of research, and it seems that the only springs that will be a good fit for me (unless I get custom coilovers from TIC) are:
1. Epic Engineering
2. Mach V

Can anyone comment, chime in, or recommend me any suggestions on springs or about the two I have researched?
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Last edited by JASWRX; 10-01-2012 at 09:41 PM. Reason: new notes
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Old 08-15-2012, 08:56 AM   #2
Scooby921
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While they don't publish their spring rates (which I generally dislike) the Epic Engineering springs are assumed to be a stiffer spring rate than the Mach V springs. But the Epic springs, like the Swift springs, are progressive. I think the Mach V springs are linear, but you may want to confirm this with them directly.

In the end it's is going to be a tough call on which will give you the look you want and still provide ample stiffness to reduce or prevent rubbing.

What are your alignment specs? Perhaps some adjustments can be made there to give you a little more clearance.
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Old 08-15-2012, 09:23 AM   #3
rmaxwellusn
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I'm not here to start an E-Battle, but I thought the swifts are all linear also.
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Old 08-15-2012, 09:40 AM   #4
Mach V Matt
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Our springs rates:
Front -- 175 lb/in linear
Rear -- 116-156 lb/in progressive

We have pictures on our website if you want to see the drop. Let me know if you have any questions.


Matt
Mach V
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Old 08-15-2012, 12:23 PM   #5
jonthesloth
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weren't both of these springs designed after the prodrive springs?
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Old 08-15-2012, 01:11 PM   #6
Mach V Matt
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Ours were. The Prodrive springs were discontinued so we decided to fill that void and make our own.


Matt
Mach V

Last edited by Mach V Matt; 08-15-2012 at 03:39 PM.
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Old 08-15-2012, 03:07 PM   #7
JASWRX
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I wonder if anyone has gone to Swift to Mach v or visa versa.

I wonder how the drop compares.

Mach V seems to be a little softer....
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Old 08-15-2012, 03:09 PM   #8
JASWRX
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about -1.5 camber and 0 toe.

Quote:
Originally Posted by Scooby921 View Post
While they don't publish their spring rates (which I generally dislike) the Epic Engineering springs are assumed to be a stiffer spring rate than the Mach V springs. But the Epic springs, like the Swift springs, are progressive. I think the Mach V springs are linear, but you may want to confirm this with them directly.

In the end it's is going to be a tough call on which will give you the look you want and still provide ample stiffness to reduce or prevent rubbing.

What are your alignment specs? Perhaps some adjustments can be made there to give you a little more clearance.
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Old 08-15-2012, 03:59 PM   #9
dirt and road
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I just installed the epic springs on my stock struts that have 143k on them and they ride fine, they are pretty stiff so when hitting large bumps in the road you definitely feel it but nothing unbearable. Oh and they handle like a dream
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Old 08-15-2012, 08:42 PM   #10
JASWRX
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hmm,

so it appears the Swift springs actually have softer rates than the Mach in the back, but apparently the Swift lowers the car more, making it not as confortable.

I will be purchasing any day and compare the difference. Just don't know which to get, EPIC or Mach V...
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Old 08-15-2012, 09:01 PM   #11
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Quote:
Originally Posted by dirt and road View Post
I just installed the epic springs on my stock struts that have 143k on them and they ride fine, they are pretty stiff so when hitting large bumps in the road you definitely feel it but nothing unbearable. Oh and they handle like a dream
agreed!

just installed the epics on my bugeye.
stock struts with 120k

they handle much much better than stock, and the ride isn't bad at all!
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Old 08-17-2012, 03:24 AM   #12
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so it seems more people have Epic. Does anyone know the difference in drop between Epic and Mach?
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Old 08-18-2012, 04:39 PM   #13
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Epic: 1.6" front, 1" rear

Mach V: 1" front, 3/4" rear
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Old 08-18-2012, 04:47 PM   #14
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If you are getting rubbing while cornering the Mach V might be better just due to the lower drop.
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Old 08-20-2012, 06:53 PM   #15
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very happy with my Mach V springs on stock struts...
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Old 08-20-2012, 11:19 PM   #16
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Have you had any other springs? Just curious?

Quote:
Originally Posted by mechatricity View Post
very happy with my Mach V springs on stock struts...
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Old 08-21-2012, 12:34 AM   #17
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Maybe, just maybe, your car is suffer from saggy butt and you need spacers?
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Old 08-22-2012, 01:57 AM   #18
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how would it suffer. I don't even understand that. What would make it suffer?
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Old 08-22-2012, 07:46 AM   #19
rmaxwellusn
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What he is refering to, is the "saggy butt" of having the rear end lower then the fronts. It happens with some lowering/sport springs.
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Old 08-22-2012, 01:16 PM   #20
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so certain springs do this? They should not allowed to be sold if this is a problem. I doubt Swift does this, but I cannot confirm.
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Old 08-22-2012, 06:00 PM   #21
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Quote:
Originally Posted by JASWRX View Post
so certain springs do this? They should not allowed to be sold if this is a problem. I doubt Swift does this, but I cannot confirm.
It's not that the spring changes over time. Some cars are heavier in the back (wagons, cars with big sub boxes). Some people just prefer a rake, with the back higher than the front. Some springs make the car level, but the front LOOKS higher, because the front wheel cutout is bigger. The saggy butt spacers are for people who want to raise the back of the car up a little bit, either for cosmetics or for function.

--Dan
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Old 08-22-2012, 06:35 PM   #22
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Quote:
Originally Posted by JASWRX View Post
Have you had any other springs? Just curious?
I had BC BR Coilovers previously. Too aggressive for me. For my uses i don't plan on going back to coilovers. New struts maybe, but that's it.
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Old 08-22-2012, 07:19 PM   #23
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got it, thanks! I should not need it, although I do have a 30 pound sub in the back.

What I did notice the other week on my Swift Springs is that when I put two people in the back, it really rubs, and when I go over big bumps with people in the back, it sounds awful.

The only other solution if the Mach Springs don't fix my issues are to "pull the fenders" which does not seem like an ideal solution. I hate how our cars are designed. BMW's got it right. A stock suspension 3 series looks pretty low, yet has no issues.
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Old 08-23-2012, 08:40 AM   #24
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Quote:
Originally Posted by rmaxwellusn View Post
I'm not here to start an E-Battle, but I thought the swifts are all linear also.
Both the WRX and STi spec of the Swift Sport springs are progressive. I've installed both on friends' cars. You may be right about the r-spec or spec-r (whichever it is). As they are much stiffer and geared toward high performance handling they may be linear. The Sport springs are geared more toward DD and appearance.
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Old 08-23-2012, 05:48 PM   #25
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so why do some springs sag? Bad design?
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