Custom Koni's ProParts USA

redline10000 · 01-24-2015, 11:16 AM

I just wanted to share my setup with everyone as I could not find any post or pics of custom koni's for a 370z just a 350z. Figure we should start sharing these setups to give others ideas.

My goal was to find a suspension that was from a good brand, was popular among autocrossers, had linear spring rates and would be reliable enough for me to daily drive. The end result, I started with a used set of koni yellows and then had some magic done by Jeff at proparts usa.

This setup has shortened front and rear shocks, adjustable koni sleeves on the front shocks, pillow ball top mounts, and 750/600lb hypercoils. This will be my autox setup so hopefully the spring rates will be good enough for double duty. Also just to get rid of the annoyance of adjusting the rears I had the rear koni adjusters changed from the sweep style to the knob style. It was really cheap to have this done and saves me from jacking the car up all the time.

Now enough talking here are some pics of my Koni Blacks. Hope this helps anyone else who is thinking about a custom setup. I think this setup should be able to keep up with the KW v3 considering that its linear, stiffer springs and pillowball top hats.

750/600 lb\in springs and helper springs for the rears

Megan racing high/low adjusters

Megan racing tophats

Adjusters for the rear is now on the top so I can reach it from the trunk

Rangerz · 01-24-2015, 11:40 AM

Nice..looking forward to the report after you use them. So how much more do the modifications cost to do this?

j-rho · 01-24-2015, 12:34 PM

Looks good man!

cv129 · 01-24-2015, 02:13 PM

Yum!!!

zmanelite · 01-24-2015, 02:33 PM

Quote:

Originally Posted by Rangerz

Nice..looking forward to the report after you use them. So how much more do the modifications cost to do this?

this !

redline10000 · 01-24-2015, 06:38 PM

Quote:

Originally Posted by Rangerz

Nice..looking forward to the report after you use them. So how much more do the modifications cost to do this?

If you get a used set of konis for cheap like I did the out the door cost will be less than KW v3's by a few hundred bucks. I think that's a pretty good deal considering that its customizable to any spring rate you want and does not reuse factory tophats.

redline10000 · 01-24-2015, 06:41 PM

Quote:

Originally Posted by j-rho

Looks good man!

Thnx I see your setup is coming along nicely as well with the 30 series.

Quote:

Originally Posted by zmanelite

this !

I will post an update on how it drives next month. I won't get to autox it until march though. I am starting to get antsy.

Rangerz · 01-25-2015, 12:26 AM

Quote:

Originally Posted by redline10000

If you get a used set of konis for cheap like I did the out the door cost will be less than KW v3's by a few hundred bucks. I think that's a pretty good deal considering that its customizable to any spring rate you want and does not reuse factory tophats.

So are yours kinda a hybrid series 28 set up? Can you expand on what was modified?

redline10000 · 01-25-2015, 09:42 AM

Quote:

Originally Posted by Rangerz

So are yours kinda a hybrid series 28 set up? Can you expand on what was modified?

No I wish I had the money for a 28 series setup. Thats about $900 per shock and up + parts. These are your standard koni yellows ( 8241) with some tweaks and still are single adjustable.

Here is a breakdown:

Front shocks

Pillowball top hats so no more mush rubber up front
Shortned shock body up front to allow the car to go low without losing suspension travel
Koni sleve kit to allow the use of 2.5" id springs
Revavle to allow me to use up to 1000lbs springs up front. Rgiht now I have 750
painted black just beacause I dont like yellow that much and it was no extra cost
6" 750lb hpyercoil spring

Rear shock

pillowball top hat
shortned bodies
damping adjuster has been moved to the top instead of on the side. Now I can adjust from the trunk.
revalved for higher spring rates
painted black
6" hpyercoil 600lb spring in the rear bucket with a helper spring and megan racing adjuster

I chose this setup because I wanted linear springs and not progressive and wanted the ability to go up/down on spring rates to tune the car the way I want. This seems to be a pretty popular setup with the 350z autox guys so I figured I would give it a shot too.

reeps · 01-25-2015, 12:16 PM

Any pictures on the car?

Rangerz · 01-25-2015, 02:11 PM

Didn't even know you could get a sleeve kit until your post, googled it, not to expensive. Where are the top hats sourced from? Looks like you got a winner..

redline10000 · 01-25-2015, 02:43 PM

Quote:

Originally Posted by reeps

Any pictures on the car?

Not yet but I will take some during install. Right now we are getting 2 feet of snow so not a good time to install.

Quote:

Originally Posted by Rangerz

Didn't even know you could get a sleeve kit until your post, googled it, not to expensive. Where are the top hats sourced from? Looks like you got a winner..

Thnx I hope they perfom as well as they look. I didnt know about the sleves either until I started doing a lot of research. And I belive the top hats are megan racing but Jeff at pro parts had to swap out a few parts to make everything fit.

Spooler · 01-26-2015, 11:16 PM

Can the guy build a custom set for a Nismo, shocks/struts only and using the stock springs? I would like to get the bounce out of my suspension on rough roads.

redline10000 · 01-27-2015, 08:23 AM

Quote:

Originally Posted by Spooler

Can the guy build a custom set for a Nismo, shocks/struts only and using the stock springs? I would like to get the bounce out of my suspension on rough roads.

If you don't want springs then just go with off the shelf koni yellows. Standard konis will take the stock or aftermarket springs no problem. This setup is if you want 2.5" is race springs and higher springs rates than OTS koinis can handle.

01-24-2015, 11:16 AM	#1 (permalink)
redline10000 Enthusiast Member Join Date: Nov 2012 Location: boston Posts: 265 Drives: 2011 370z sport Rep Power: 12	Custom Koni's ProParts USA I just wanted to share my setup with everyone as I could not find any post or pics of custom koni's for a 370z just a 350z. Figure we should start sharing these setups to give others ideas. My goal was to find a suspension that was from a good brand, was popular among autocrossers, had linear spring rates and would be reliable enough for me to daily drive. The end result, I started with a used set of koni yellows and then had some magic done by Jeff at proparts usa. This setup has shortened front and rear shocks, adjustable koni sleeves on the front shocks, pillow ball top mounts, and 750/600lb hypercoils. This will be my autox setup so hopefully the spring rates will be good enough for double duty. Also just to get rid of the annoyance of adjusting the rears I had the rear koni adjusters changed from the sweep style to the knob style. It was really cheap to have this done and saves me from jacking the car up all the time. Now enough talking here are some pics of my Koni Blacks. Hope this helps anyone else who is thinking about a custom setup. I think this setup should be able to keep up with the KW v3 considering that its linear, stiffer springs and pillowball top hats. 750/600 lb\in springs and helper springs for the rears Megan racing high/low adjusters Megan racing tophats Adjusters for the rear is now on the top so I can reach it from the trunk cv129, Rusty, zefaulter and 2 others like this. __________________ AAM Axleback + AAM Midpipe \| K&N Drop in filters \| Eibach Front Sway bar \|Whiteline diff bushing\| Dunlop ZII

01-24-2015, 11:40 AM	#2 (permalink)
Rangerz Enthusiast Member Join Date: Jun 2013 Location: Northern Utah Age: 58 Posts: 476 Drives: 2012 370 Nismo Rep Power: 11	Nice..looking forward to the report after you use them. So how much more do the modifications cost to do this? __________________ Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

01-24-2015, 02:13 PM	#4 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,190 Drives: 09 Nismo, 16 Nismo Rep Power: 159827	Yum!!! __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

01-25-2015, 02:11 PM	#11 (permalink)
Rangerz Enthusiast Member Join Date: Jun 2013 Location: Northern Utah Age: 58 Posts: 476 Drives: 2012 370 Nismo Rep Power: 11	Didn't even know you could get a sleeve kit until your post, googled it, not to expensive. Where are the top hats sourced from? Looks like you got a winner.. __________________ Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

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01-24-2015, 12:34 PM	#3 (permalink)
j-rho Base Member Join Date: Jul 2014 Location: San Diego Posts: 154 Drives: 1967 Camaro Z28 Rep Power: 10	Looks good man!

01-25-2015, 12:16 PM	#10 (permalink)
reeps Enthusiast Member Join Date: Dec 2011 Location: Las Vegas Posts: 306 Drives: 2012 Nissan 370z Rep Power: 13	Any pictures on the car?

01-26-2015, 11:16 PM	#13 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,505 Drives: 2013 Nismo 370z Rep Power: 2684391	Can the guy build a custom set for a Nismo, shocks/struts only and using the stock springs? I would like to get the bounce out of my suspension on rough roads.