Swift springs review!!!!!

ZForce

You should be able to download the Field Service Manual that is on this forum. It's very usefull and will have all your torque specs.

Edit: Here is the link to the FSM 2009 370z Service Manual Complete ready to Download!

tsolin01

When people say you're within spec on swift springs with no camber kit, it's more like you're maxing out on the spec. If you want to be at nominal spec, (-.67 front, -1.67 rear) then there's no doubt you will need a front and rear camber kit.

Will running slightly out of range camber have significant effects on your tire wear? I'm not convinced that's true.

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SOLD 12/30/2011 2010 370Z Coupe Monterey Blue 6MT/Touring/Sport/Nav
F.I. CBE CF w/ 12" Res | V1 | SecondSkin | Stillen G3 | EVO-R CF B-Pillars | Volk GT-S Ti Gunmetal 19x9.5 +30 F, 19x10.5 +8 R | Swift Spec-R Springs

BG40thZ

Thanks for the link! And I'll be sure to post some before and after photos in here

ZForce

Well stated ...I agree

As far as running slightly out of camber ranger and having significant effects on your tire wear? Only time will tell as I am going to test it and fingers crossed you are right.

I am probably going to be on the max side of spec with a new set of RE-11's and will be hoping to get a good 25k off these tires that are rated for 10-12k miles.

At this point in time I cannot afford $500 + install fees to bring the fronts into nominal spec range. The old saying goes "pay me now or pay me later" and dammed if I don't shell out the extra $$ for upper control arms as they are much cheaper than buying a new set of tires. So I will be in the damn'd that I did not boat. Hopefully not though!

ZForce

No problem, the table of contents is buried and once you find it, you may want to re-label the file to something like: QUICK_REFERENCE_INDEX_TOC

It makes it alot easier when you have to refer to it in 6 months.

Yes, please do post pics.

christian370z

If you are running at max stock specs, tire wear will not be too much different than stock. Now, if you go -3 or more, then you will most certainly experience significant additional tire wear.

Also, some additional negative camber helps handling performance substantially both in feel and turn in. Stock camber is suited for long tire life, not performance.

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-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

ZForce

^ Good to know. I am pleased with the performance I get by staying within a -0.3 difference between Fr -1.3 & Rr -1.0. This setup has provided performance and reasonable tire life at 26k miles. I may try a new setup this time around, more on the performance side, any suggestions?

ZForce

I very rarely ever post pics. So here are some initial pics, springs had only been on for 1 day with 50 miles on them.

My setup as follows: Sport rims rolling on stock size tires Fr 245/40/19 & Rr 275/35/19 with wheel spacers @ 20mm Fr & 25mm Rr on Swift springs.

Unsettled springs at 26.75" Fr & 27.00" Rr (measured from ground to fender).

tsolin01

Looks good My drop seems even in the front but the passenger side rear is almost half an inch higher than the driver side. Not sure what could cause that? Anyone else have this issue? I think someone earlier in the thread had the whole passenger side slightly higher but seems to have settled for them. I've had the springs 2 weeks with over 600 miles driven so should be settled already...

__________________
SOLD 12/30/2011 2010 370Z Coupe Monterey Blue 6MT/Touring/Sport/Nav
F.I. CBE CF w/ 12" Res | V1 | SecondSkin | Stillen G3 | EVO-R CF B-Pillars | Volk GT-S Ti Gunmetal 19x9.5 +30 F, 19x10.5 +8 R | Swift Spec-R Springs

christian370z

My passenger side is also slightly higher, but not by half an inch. We are honored to view your rare photogasm Zforce! Looks awesome, I am strongly considering moving up to 25mm spacers in the rear.

__________________
-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

ZForce

From previous posts #385, bringing forward to discuss. I have about 170 miles on the springs now on day 6 and they have NOT settled anymore from when I had 75 miles on them. Still have 1.5 gap on three corners AND I also have the rear passenger side ON BOTH Z's at 1.75 gap. I see a pattern here with both of our 370Z's and others stating the same.

I cannot see mine dropping to what Baer383 has (above) at .75 gap on all four corners.

Can anyone confirm if they followed the same install "load the suspension when you tightened everything up" as Baer383 did? And actually what does he mean by loading up the suspension?

Is what Ron suggested (above) be our solution? I did not do my own install and my installer said he did not mess with the upper control arm bolts.

This still only addresses the the overall jacked up height on our cars BUT NOT the .25 higher gap on the rear passenger side.

Up for discussion.

ZForce

Thanks man, wish I had your wheels.

Thanks, I pic whored a bit last night, not the best background but will do for this thread. I will try to get a few more pics with the OEM tires before they get swapped for some paws with more meat on Sat.

ZForce

Well I am not sure on this 1.5 gap still, so I am heading over to the dealership to have them check my installers work on the spring install and try to determind the cause for this high gap.

tjlazer

Correct. I am at -1.4 front and -1.9 rears and was told that was in spec. Is that the same as when stock? NO. Do I care? Nope. If I did care I would spend the ~$500 on camber kits! A little more negative camber is not bad, especially on the Z.

Tires are fine so far, 6K miles on them.

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2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

tsolin01

So what's the measurement from your fender to the ground through the center of the wheel? Stock height is supposed to be 27.87 in front, 27.99 in rear.

__________________
SOLD 12/30/2011 2010 370Z Coupe Monterey Blue 6MT/Touring/Sport/Nav
F.I. CBE CF w/ 12" Res | V1 | SecondSkin | Stillen G3 | EVO-R CF B-Pillars | Volk GT-S Ti Gunmetal 19x9.5 +30 F, 19x10.5 +8 R | Swift Spec-R Springs