Anyone have a setup of 15mm spacers in front and 20 rear?

RCZ · 01-29-2010, 02:55 PM

Mike I thought you had 20 front 25 rear?

Mike · 01-29-2010, 07:54 PM

no, just 15s in front. I had 20s rear originally, but they didn't work out due to the clearance issue, and I had ichiba 15s originally, but the hubcentric rings weren't deep enough for the nismo's, so I switched to 15 H&Rs

I do have a set of 15mm type 1 with studs and 20mm type 2 ichibas available for cheap if anyone wants them. The outsides are also powdercoated satin black so they don't stand out.

spearfish25 · 01-30-2010, 12:16 PM

At this point, I can't figure out what you sizes you guys are actually running right now...

Can we consolidate with each of you posting your current setup?

Mike · 01-30-2010, 01:14 PM

Mike
Sport 19s (or same as)
15mm type 1 H&R front
25mm type 2 Ichiba rear

Westwood · 02-14-2010, 09:03 AM

Quote:

Originally Posted by Mike

Mike
Sport 19s (or same as)
15mm type 1 H&R front
25mm type 2 Ichiba rear

how come rcz has 20mm rear and almost look the same? i want the flush look with my stock 19"

RCZ · 01-30-2010, 02:30 PM

Sport 19s
15mm H&R Trak+ DRS Front
20mm H&R Trak+ DRS Rear

JB1 · 01-31-2010, 08:50 PM

Mike and RCZ, did you notice your cars being more "tail happy" after the spacer install? From what I have heard and read, increasing rear track width relative to the front will increase oversteer. Mike increased the rear by 10mm, RCA by 5mm relative to the front.

Mike · 02-01-2010, 11:34 AM

Quote:

Originally Posted by JB1

Mike and RCZ, did you notice your cars being more "tail happy" after the spacer install? From what I have heard and read, increasing rear track width relative to the front will increase oversteer. Mike increased the rear by 10mm, RCA by 5mm relative to the front.

I brought the car home from the dealership when I bought it, raised it in the air and swapped out wheels, springs, sways and put spacers on, so I have no idea how the car was stock. Also, I run the same size tires all around on the track, and yes, the car is very tail happy, but I want it that way.

m4a1mustang · 01-31-2010, 09:58 PM

Quote:

Originally Posted by antennahead

Actually, I believe increasing the rear width will add "understeer"

That's what it should do.

m4a1mustang · 01-31-2010, 08:50 PM

I just ordered H&R 15mm front and 20mm rear, both DRS.

RCZ · 02-01-2010, 12:20 PM

I have a custom alignment, different tires, sways and a different suspension. Also I installed sways at the same time as spacers, so I have no idea. The car is pretty tail happy though, I haven't taken it to the track with the new setup yet.

ZForce · 02-02-2010, 12:11 AM

Sport 19's
15mm H&R Trak+ DRS Front
25mm H&R Trak+ DRM Rear

Eibach springs
SPC Rear Camber Kit
Stock tires

Still waiting to install them.

So guys, with this setup I understand the rear is tail happy with understeer. Which sways would you recommend (Stillen ??) with Eibach springs and would sways correct the understeer and bring it back to a OEM setting or even better feel? Forgive me if I sound naive on the sway setup and function I am still learning this.

m4a1mustang · 02-02-2010, 09:17 AM

Quote:

Originally Posted by ZForce

Sport 19's
15mm H&R Trak+ DRS Front
25mm H&R Trak+ DRM Rear

Eibach springs
SPC Rear Camber Kit
Stock tires

Still waiting to install them.

So guys, with this setup I understand the rear is tail happy with understeer. Which sways would you recommend (Stillen ??) with Eibach springs and would sways correct the understeer and bring it back to a OEM setting or even better feel? Forgive me if I sound naive on the sway setup and function I am still learning this.

I think you are confusing understeer with oversteer. Understeer is "tight" and oversteer is "loose."

Aftermarket sways are going to be stiffer than stock. A stiffer rear bar is going to free up the rear of the car adding some oversteer depending on how big of a bar you go with. A stiffer front bar will tighten the front of the car up and can induce understeer if you go too stiff -- it's all about finding the right balance.

ZForce · 02-03-2010, 11:19 PM

Quote:

Originally Posted by RCZ

^ What kind of alignment do you have? The front-to-rear camber ratio is a big factor on the behavior of the car. I can't assume you have stock settings because you will be lowered and have only the rear camber kit. If I had to speculate and you did you alignment right, the front camber should end up around -1.5 and the rear can be adjusted to -1.2 or so. Assuming thats the case, you should have a little bit of understeer with that 10mm spacer offset you created.

I would say that adding Stillen swaybars would balance out the car nicely. If you want more control, you should get an adjustable bar setup such as the hotchkis.

There are a lot of "ifs" in there though. Make sure you get an alignment after everything is installed. Since you aren't going to gain THAT much negative camber in the front, I'd say keep the rear within .3 degrees closer to 0 than the front.

Others might have other suggestions, but thats what I would aim for..

Still waiting for the install to happen, building up a little toy box of mods and none have been installed. Half of the mods are sitting at Z Car Garage and the rest in my garage. Just getting some pre knowledge so when I buy the sways I will have made the right purchase for my already mods list.

The camber settings are exactly what I was looking for, in addition to the benefit of sways with wheel spacers. I am leaning towards the Stillen sways based on our previous discussion on another thread that Hotchkis would be better suited for coilovers and Stillen would be better suited with Eibachs.

Thanks again for your advise!

Quote:

Originally Posted by m4a1mustang

I think you are confusing understeer with oversteer. Understeer is "tight" and oversteer is "loose."

Aftermarket sways are going to be stiffer than stock. A stiffer rear bar is going to free up the rear of the car adding some oversteer depending on how big of a bar you go with. A stiffer front bar will tighten the front of the car up and can induce understeer if you go too stiff -- it's all about finding the right balance.

You got that right, I did not know that my confused mis-quote of a couple of members would get a hot debate going. No offense to anyone, like I said from the start that I am naïve to this stuff. Like you said it’s all about finding the right balance. I will sit back and learn from the more knowledgeable members and not stir the pot of confusion with my inexperience in this area. Thanks for the advise!

This thread is getting very interesting and I was hoping someone (John) would provide a link to a resource to educate me in this area. You guys have been great and very patient with me. That is why I joined this forum!

Cheers
Curtis

RCZ · 02-02-2010, 08:39 AM

^ What kind of alignment do you have? The front-to-rear camber ratio is a big factor on the behavior of the car. I can't assume you have stock settings because you will be lowered and have only the rear camber kit. If I had to speculate and you did you alignment right, the front camber should end up around -1.5 and the rear can be adjusted to -1.2 or so. Assuming thats the case, you should have a little bit of understeer with that 10mm spacer offset you created.

I would say that adding Stillen swaybars would balance out the car nicely. If you want more control, you should get an adjustable bar setup such as the hotchkis.

There are a lot of "ifs" in there though. Make sure you get an alignment after everything is installed. Since you aren't going to gain THAT much negative camber in the front, I'd say keep the rear within .3 degrees closer to 0 than the front.

Others might have other suggestions, but thats what I would aim for..

01-29-2010, 07:54 PM	#2 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2187	no, just 15s in front. I had 20s rear originally, but they didn't work out due to the clearance issue, and I had ichiba 15s originally, but the hubcentric rings weren't deep enough for the nismo's, so I switched to 15 H&Rs I do have a set of 15mm type 1 with studs and 20mm type 2 ichibas available for cheap if anyone wants them. The outsides are also powdercoated satin black so they don't stand out. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

01-30-2010, 12:16 PM	#3 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	At this point, I can't figure out what you sizes you guys are actually running right now... Can we consolidate with each of you posting your current setup? __________________ 2013 Cadillac V-Wagon, RIP Z

01-30-2010, 01:14 PM	#4 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2187	Mike Sport 19s (or same as) 15mm type 1 H&R front 25mm type 2 Ichiba rear __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

01-31-2010, 08:50 PM	#7 (permalink)
JB1 Track Member Join Date: Mar 2009 Location: Chicagoland Posts: 748 Drives: 09 Nissan 370Z sold Rep Power: 18	Mike and RCZ, did you notice your cars being more "tail happy" after the spacer install? From what I have heard and read, increasing rear track width relative to the front will increase oversteer. Mike increased the rear by 10mm, RCA by 5mm relative to the front. __________________ Black Fangs // Black rear Valance // Berk CBE // COBB post MAF tubes // K&N drop in filters // Setrab Oil Cooler // Stillen Sway bars // Z1 SS brake lines // Stillen brake cooling kit // Harness bar //

01-31-2010, 08:50 PM	#10 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	I just ordered H&R 15mm front and 20mm rear, both DRS. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

01-29-2010, 02:55 PM	#1 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Mike I thought you had 20 front 25 rear?

01-30-2010, 02:30 PM	#6 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Sport 19s 15mm H&R Trak+ DRS Front 20mm H&R Trak+ DRS Rear

02-01-2010, 12:20 PM	#11 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	I have a custom alignment, different tires, sways and a different suspension. Also I installed sways at the same time as spacers, so I have no idea. The car is pretty tail happy though, I haven't taken it to the track with the new setup yet.

02-02-2010, 12:11 AM	#12 (permalink)
ZForce A True Z Fanatic Join Date: Jul 2009 Location: Roseville, CA Posts: 2,359 Drives: 09 370Z Tour + Sport Rep Power: 22	Sport 19's 15mm H&R Trak+ DRS Front 25mm H&R Trak+ DRM Rear Eibach springs SPC Rear Camber Kit Stock tires Still waiting to install them. So guys, with this setup I understand the rear is tail happy with understeer. Which sways would you recommend (Stillen ??) with Eibach springs and would sways correct the understeer and bring it back to a OEM setting or even better feel? Forgive me if I sound naive on the sway setup and function I am still learning this. Last edited by ZForce; 02-02-2010 at 12:16 AM.

02-02-2010, 08:39 AM	#15 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	^ What kind of alignment do you have? The front-to-rear camber ratio is a big factor on the behavior of the car. I can't assume you have stock settings because you will be lowered and have only the rear camber kit. If I had to speculate and you did you alignment right, the front camber should end up around -1.5 and the rear can be adjusted to -1.2 or so. Assuming thats the case, you should have a little bit of understeer with that 10mm spacer offset you created. I would say that adding Stillen swaybars would balance out the car nicely. If you want more control, you should get an adjustable bar setup such as the hotchkis. There are a lot of "ifs" in there though. Make sure you get an alignment after everything is installed. Since you aren't going to gain THAT much negative camber in the front, I'd say keep the rear within .3 degrees closer to 0 than the front. Others might have other suggestions, but thats what I would aim for..

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
15mm Spacer installed (Rear)	Minicobra1	Wheels & Tires	72	05-26-2011 10:40 PM
Front and rear valence group buy!	SpawnAeroJohn	Exterior & Interior	143	12-23-2009 01:28 AM
Parking sensors for rear/front?	jekel	Nissan 370Z General Discussions	9	07-29-2009 06:32 PM
Front and Rear Emblem?	cwj370	Exterior & Interior	16	05-02-2009 09:21 AM
Size of Front & Rear Emblems	mspeasl	Exterior & Interior	14	02-27-2009 05:22 PM