Spring length question

Jmatchley86 · 10-08-2019, 09:17 PM

Recently I purchased Koni yellows with swift spec springs. And while i like the improvement from my 90k mile shocks, I really don't like the height up front.

I'm scraping my bumper all over and dragged it through several turns last week at the track.

I was reading a post here where someone was looking to get a new 7 inch spring from swift for a slightly different reason but it got me thinking..... Would this fix my issue? Could I just get a oem length spring and switch it out? Ideally i would like to get a slightly stiffer spring in front too but overall i just want to quit scraping everything in sight.

Thanks in advance.

OptionZero · 10-08-2019, 10:25 PM

From Z1's listing for the koni yellow:

KONI Yellow Sport shock are especially designed for cars that are fitted with lowering springs which are shorter than the original springs.

Which means going with a taller spring may **** up the travel that the shock was designed for

its more expensive but height adjustable coilovers are the way to go

or if you want to do it REALLY properly, coilovers and a cup kit

or you can just buy some replacement stock part with fewer miles from the FS section or a local junker

nis350 · 10-09-2019, 01:25 AM

Swift springs don't lower the front much, probably just 1 inch. I think you are just scraping the black rubber piece (sport model) attached to the bottom of the bumper and not the actual bumper.

Quote:

Originally Posted by Jmatchley86

Recently I purchased Koni yellows with swift spec springs. And while i like the improvement from my 90k mile shocks, I really don't like the height up front.

I'm scraping my bumper all over and dragged it through several turns last week at the track.

I was reading a post here where someone was looking to get a new 7 inch spring from swift for a slightly different reason but it got me thinking..... Would this fix my issue? Could I just get a oem length spring and switch it out? Ideally i would like to get a slightly stiffer spring in front too but overall i just want to quit scraping everything in sight.

Thanks in advance.

Jmatchley86 · 10-09-2019, 06:57 AM

the black rubber bits are gone, its for sure the bumper. its hanging from the quick release after each session. i just effed up and bought the wrong parts. Koni's are NOT the way to go lol.

nis350 · 10-09-2019, 04:19 PM

does the koni lower the car also?

I have Swift and haven't scraped the actual bumper, mostly just the black rubber piece.

Quote:

Originally Posted by Jmatchley86

the black rubber bits are gone, its for sure the bumper. its hanging from the quick release after each session. i just effed up and bought the wrong parts. Koni's are NOT the way to go lol.

Justint5387 · 10-10-2019, 12:29 AM

shocks do not lower cars

cv129 · 10-10-2019, 01:16 AM

Quote:

Originally Posted by nis350

does the koni lower the car also?

Koni shock question

nis350 · 10-11-2019, 01:33 AM

that explained why he's scraping..... it is strange that the koni shocks only lower on the front. it probably doesn't look that good with the front dropped so much more than the rear.

Quote:

Originally Posted by cv129

Koni shock question

Jmatchley86 · 10-12-2019, 06:54 PM

I found out it lowered the car after i had purchased them.... i honestly assumed it would be very oem based on tireracks description. It doesn't look terrible but its for sure not what i was wanting as far as ride height is concerned.

10-08-2019, 09:17 PM	#1 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	Spring length question Recently I purchased Koni yellows with swift spec springs. And while i like the improvement from my 90k mile shocks, I really don't like the height up front. I'm scraping my bumper all over and dragged it through several turns last week at the track. I was reading a post here where someone was looking to get a new 7 inch spring from swift for a slightly different reason but it got me thinking..... Would this fix my issue? Could I just get a oem length spring and switch it out? Ideally i would like to get a slightly stiffer spring in front too but overall i just want to quit scraping everything in sight. Thanks in advance. Last edited by Jmatchley86; 10-08-2019 at 09:19 PM.

10-08-2019, 10:25 PM	#2 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,225 Drives: 15 370Z Nismo 6MT Rep Power: 214100	From Z1's listing for the koni yellow: KONI Yellow Sport shock are especially designed for cars that are fitted with lowering springs which are shorter than the original springs. Which means going with a taller spring may **** up the travel that the shock was designed for its more expensive but height adjustable coilovers are the way to go or if you want to do it REALLY properly, coilovers and a cup kit or you can just buy some replacement stock part with fewer miles from the FS section or a local junker __________________ OptionZero Build Thread

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10-09-2019, 06:57 AM	#4 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	the black rubber bits are gone, its for sure the bumper. its hanging from the quick release after each session. i just effed up and bought the wrong parts. Koni's are NOT the way to go lol.

10-10-2019, 12:29 AM	#6 (permalink)
Justint5387 Base Member Join Date: Aug 2014 Location: Bay Area, CA Posts: 188 Drives: 2016 370z Silver 6MT Rep Power: 12	shocks do not lower cars

10-12-2019, 06:54 PM	#9 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	I found out it lowered the car after i had purchased them.... i honestly assumed it would be very oem based on tireracks description. It doesn't look terrible but its for sure not what i was wanting as far as ride height is concerned.