Swift springs review!!!!!

onzedge · 07-16-2014, 07:27 AM

Quote:

Originally Posted by sportblack13Z

Have any of you guys had issues with any wheel hop after installing the springs? I tried to track the car 1/4 mile and had some pretty bad wheel hop during launch. Didnt have any before. I also installed some Bridgestone s04 tires at te same time with spacers and spc rear camber kitt. im thinking with the tighter springs i might need stiffer differential bushings? Thanks for any ideas.

What shocks/dampers are you running?

synolimit · 07-16-2014, 11:36 AM

Quote:

Originally Posted by sportblack13Z

Have any of you guys had issues with any wheel hop after installing the springs? I tried to track the car 1/4 mile and had some pretty bad wheel hop during launch. Didnt have any before. I also installed some Bridgestone s04 tires at te same time with spacers and spc rear camber kitt. im thinking with the tighter springs i might need stiffer differential bushings? Thanks for any ideas.

That's what I hear, I have some for you

But tires can too. Whats the pressure?

Felix 808 · 07-16-2014, 11:13 PM

Quote:

Originally Posted by sportblack13Z

. im thinking with the tighter springs i might need stiffer differential bushings? Thanks for any ideas.

Better diff bushings will help a lot the pumpkin won't want to rotate as much. I would recommend going a solid poly bushing (Energy, White-line) instead of the aluminium ones.

carlitos_370z · 07-16-2014, 06:26 AM

damn sorry to hear that.. well i never track my car in 1/4 mile but i hope someone here can help you

sportblack13Z · 07-16-2014, 07:09 PM

I have a 13z with sports package. Shocks and dampers are oem. i started at 25 psi and lowered to 22 psi but couldnt get rid of wheel hop unless i launched very soft. i was thinking maybe i have to ride the clutch more but honestly its been doing it even from a rolling start. Thanks synolimit, what kind do you recommend? Im thinking that and some traction bars might help?

synolimit · 07-17-2014, 12:37 AM

Quote:

Originally Posted by sportblack13Z

I have a 13z with sports package. Shocks and dampers are oem. i started at 25 psi and lowered to 22 psi but couldnt get rid of wheel hop unless i launched very soft. i was thinking maybe i have to ride the clutch more but honestly its been doing it even from a rolling start. Thanks synolimit, what kind do you recommend? Im thinking that and some traction bars might help?

See I always thought street tires at low psi made hop worse. They have very stiff side walls unlike a drag tire at conforms to the road at low psi. The lower you go the worse it gets with me. The more pumped up the smoother it gets but you can slip easier. Its a fine line from my experience to get it right. I think <26psi is to low. At the drag my car did slightly better 60 foot with a little lower psi but I kept losing mph at the end.

I have spl and no issues with NVH but install was a nightmare! The solid rear bushing was impossible to get in. I have a spare set of whitelines though.

sportblack13Z · 07-17-2014, 12:24 AM

that sounds about right, im gonna do the bushings and see if that is enough. ill update and let u guys know when i put them on. Thanks for the help!

sportblack13Z · 07-17-2014, 05:25 AM

The thing is that i installed the tires and the springs at the same time so im not sure yet if its a tire issue or the springs or a combination. ive been on the street rolling at like 20mph and taken off aggresively and ill still hop the tires and thats at 35 psi. So yea i just need to figure out what it is. i am a bit nervous about installing the bushings though.

NORAIN · 07-17-2014, 03:51 PM

Quote:

Originally Posted by sportblack13Z

The thing is that i installed the tires and the springs at the same time so im not sure yet if its a tire issue or the springs or a combination. ive been on the street rolling at like 20mph and taken off aggresively and ill still hop the tires and thats at 35 psi. So yea i just need to figure out what it is. i am a bit nervous about installing the bushings though.

I'm on Swifts with 305/30, S-04's with no wheel hop. I don't launch from high RPM's drag racing style... I do take off aggressively and get a little spin but no hop. I run a little more pressure in the tires because they are a bit wide for the OEM Rays. About 38 psi cold.
What are your alignment settings?

synolimit · 07-17-2014, 06:03 AM

Why nervous?

sportblack13Z · 07-17-2014, 09:39 PM

I think im at around -2.4 camber in the rear. I havnt tried 38 psi maybe that will help. As far as the bushings, im just gonna pull the trigger already synolimit. I keep reading about fast i tentions and how they like to add them when they install their turbo kits.

NORAIN · 07-18-2014, 04:46 AM

That's a little rich for rear camber. Most guys shoot for just under -2. Toe settings are what's more important from what I've experienced. Most run a touch toe in, in the back. I run 1/16" total toe in the rear... 1/32" each side. The OEM specs are slight toe out in the rear, which don't seem to work very good after lowering.

b15 · 07-18-2014, 10:47 AM

^ I run similar specs to you. For a street car I think -2.0 camber is plenty.

Huck · 07-18-2014, 09:20 PM

I need camber arms

I'm running -2.5 in the front and -2.8 in the rear.

Zdayz 2014!!

Zoren 370 · 08-24-2014, 10:50 AM

Quote:

Originally Posted by Huck

I need camber arms

I'm running -2.5 in the front and -2.8 in the rear.

Zdayz 2014!!

Yup i agree you need to save those Michelin tires of yours!
Very pricy.

07-17-2014, 06:03 AM	#10 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3390	Why nervous? __________________ 13 370z-

07-18-2014, 04:46 AM	#12 (permalink)
NORAIN Enthusiast Member Join Date: Jun 2013 Location: Wilmington, NC Age: 57 Posts: 323 Drives: 2011 370Z 6M SP Rep Power: 13	That's a little rich for rear camber. Most guys shoot for just under -2. Toe settings are what's more important from what I've experienced. Most run a touch toe in, in the back. I run 1/16" total toe in the rear... 1/32" each side. The OEM specs are slight toe out in the rear, which don't seem to work very good after lowering. __________________ Swift Springs\|265-305 RE-11\|Forgestar F14\|F.I. TDX S.S. 12" Res."Milled Out"\|K&N\|SPL\|Z1(34 row)oil cooler\|Z1 brake upgrade\|Hotchkis Zspeed\|Team Voodoo\|HPDEjunkie.com

07-18-2014, 09:20 PM	#14 (permalink)
Huck A True Z Fanatic Join Date: Jan 2012 Location: Cocoa, Florida Age: 42 Posts: 5,075 Drives: Pantydropper machine Rep Power: 34	I need camber arms I'm running -2.5 in the front and -2.8 in the rear. Zdayz 2014!! __________________ VLEDS \| Evo-R \| Moddiction \| CF Hood Struts \| F.I. CF CBE & LTH \| Stillen CAI \| NST Pulleys \| UpRev \| Z1 \| M7 \| Status \| Forgestar \| PSS \| Whiteline \| SPL \| SPC \| Kenwood \| Zenclosure \| Kicker \| Alpine Type R

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07-16-2014, 06:26 AM	#4 (permalink)
carlitos_370z A True Z Fanatic Join Date: Jul 2013 Location: Puerto Rico Posts: 7,157 Drives: 13 Nissan 370Z SP M6 Rep Power: 7587	damn sorry to hear that.. well i never track my car in 1/4 mile but i hope someone here can help you

07-16-2014, 07:09 PM	#5 (permalink)
sportblack13Z Base Member Join Date: Sep 2013 Location: Brownsville, tx Posts: 6 Drives: 2013 370z Black M6 Rep Power: 12	I have a 13z with sports package. Shocks and dampers are oem. i started at 25 psi and lowered to 22 psi but couldnt get rid of wheel hop unless i launched very soft. i was thinking maybe i have to ride the clutch more but honestly its been doing it even from a rolling start. Thanks synolimit, what kind do you recommend? Im thinking that and some traction bars might help?

07-17-2014, 12:24 AM	#7 (permalink)
sportblack13Z Base Member Join Date: Sep 2013 Location: Brownsville, tx Posts: 6 Drives: 2013 370z Black M6 Rep Power: 12	that sounds about right, im gonna do the bushings and see if that is enough. ill update and let u guys know when i put them on. Thanks for the help!

07-17-2014, 05:25 AM	#8 (permalink)
sportblack13Z Base Member Join Date: Sep 2013 Location: Brownsville, tx Posts: 6 Drives: 2013 370z Black M6 Rep Power: 12	The thing is that i installed the tires and the springs at the same time so im not sure yet if its a tire issue or the springs or a combination. ive been on the street rolling at like 20mph and taken off aggresively and ill still hop the tires and thats at 35 psi. So yea i just need to figure out what it is. i am a bit nervous about installing the bushings though.

07-17-2014, 09:39 PM	#11 (permalink)
sportblack13Z Base Member Join Date: Sep 2013 Location: Brownsville, tx Posts: 6 Drives: 2013 370z Black M6 Rep Power: 12	I think im at around -2.4 camber in the rear. I havnt tried 38 psi maybe that will help. As far as the bushings, im just gonna pull the trigger already synolimit. I keep reading about fast i tentions and how they like to add them when they install their turbo kits.

07-18-2014, 10:47 AM	#13 (permalink)
b15 A True Z Fanatic Join Date: Feb 2010 Location: Chicago Posts: 3,229 Drives: 4drz Rep Power: 36572	^ I run similar specs to you. For a street car I think -2.0 camber is plenty.