19x10.5 wheels with 315/30R19 tires?

[Landon]

My current wheel and tire setup came right off my lowered 370Z Nismo and there was no rubbing at all (1.5” drop). Proper offsets and good alignment are key.

The wider tires also have the benefit of added grip which I always felt the platform could use more of even back on the Z34. As mentioned, you can offset the additional weight by reducing unsprung mass in other ways. In my case, it was by replacing the heavy OE cast iron rotors with a lighter aftermarket 2-piece design.

What offset are your back wheels? Did you lower your Z? Your Z does not look like you lower it because of the gap from the wheel and fender.

From what I understand by doing some research, lowering the Z can provide you more room to add wider wheels. The back wheels will slightly move in when lowering the Z.

After lowering my Z, the back and front wheels are slightly moved in. So if I hit a large bump, the tires will not hit the back and front fenders.

 

[Imperial]

My Z is not lowered but my 370Z was and my wheels and tire setup works on both. Lowering doesn’t allow you to use wider wheels, it’s offset and camber. The wheel will travel the same path when the shocks are compressed regardless of ride height.

My rears are +18.

 

[TheMarkedOne]

Here is my setup. 305/35R19 on an 10.5” wide wheel...

 

[JoeSTi]

Here is my setup. 305/35R19 on an 10.5” wide wheel...

Ok I need the details on this set up. What wheels and tires? offset? social security number?

 

[TheMarkedOne]

Ok I need the details on this set up. What wheels and tires? offset? social security number?

Haha glad you like the setup. Here is what I am running.

Swift Spec-R springs 1.1" drop
Konig Ampliform 19" rims (19x9.5 +25 offset) (19x10.5 +22 offset)
Wrapped in front are 255/40R19s and rears are 305/35R19s
Z1 camber arms to set the front to -2 degrees and -1.5 degrees in the rear.

As for my social security.....

 

[FSUZ33]

I would like an explanation for why a stock height car needs more offset (thinner spacers) than a lowered car. I could be wrong, it’s why I’m asking, but my feeble brain tells me that lowering a car doesn’t change the base suspension geometry. Yes, on typical automotive suspension the more it’s compressed the more negative camber is introduced, but that applies to whether the car is lowered or not. The static position is different, lowered and stock, but the geometry doesn't change.

The chatter is 20mm spacers work for stock height and 25mm if lowered.

Let’s say you have a Z on stock suspension, wheels and tires, and you throw on 25mm spacers. Your fatass sister hops in and compresses the suspension 1”. Isn’t the top outside edge of the tire in EXACTLY the same spot it would be if the car was lowered 1” and without your fatass sister?

 

[JoeSTi]

Haha glad you like the setup. Here is what I am running.

Swift Spec-R springs 1.1" drop
Konig Ampliform 19" rims (19x9.5 +25 offset) (19x10.5 +22 offset)
Wrapped in front are 255/40R19s and rears are 305/35R19s
Z1 camber arms to set the front to -2 degrees and -1.5 degrees in the rear.

As for my social security.....

You running nt555 G2 tires? Hows she hook? 1st still spin pretty bad?

 

[TheMarkedOne]

You running nt555 G2 tires? Hows she hook? 1st still spin pretty bad?

I think it's alright... Then again, I am running a lot more power than stock.

 

[Landon]

Here is my setup. 305/35R19 on an 10.5” wide wheel...

That looks fantastic! But there's some fishy going on here. If the tire width of the 305s looks the same as the 285s, is it a scam or a gimmick tire you purchased?

Do you have a comparison picture of the 305 and the 285 next to each other? Since, I don't see much of a bulge, I believe the 305 and the 285 got the same width.

I like the last picture! That's a professional photographer right there man.

 

[TheMarkedOne]

That looks fantastic! But there's some fishy going on here. If the tire width of the 305s looks the same as the 285s, is it a scam or a gimmick tire you purchased?

Do you have a comparison picture of the 305 and the 285 next to each other? Since, I don't see much of a bulge, I believe the 305 and the 285 got the same width.

Thanks! I took those pictures with my new phone lol. I progressively went up in tire size on the rears as I burned through them. I went from 285s, 295s and now the 305s - which I think are perfect.

285s you can see a bit of stretch and the 305s have a bit of bulge? Definitely much wider.

 

[JoeSTi]

I think it's alright... Then again, I am running a lot more power than stock.

How much power are you making? What power mods? Looks like she hooks pretty good!

 

[TheMarkedOne]

How much power are you making? What power mods? Looks like she hooks pretty good!

I have no idea how much power I am making. Currently running E60-E85 and tuned by Mark Rainville @ Sonictuned. Trying to chase stock turbo records. Here are my power mods...

Rae-Motorsports 3" Titanium Intakes
Z1 Low Pressure Fuel Pump
Z1 Heat Exchanger
AAM Race Full Downpipes
AMS Stage 1 High Pressure Fuel Pump
AMS Nissan Z Flex Fuel Kit
AMS High Pressure Fuel Sensor
Custom Center Dumps
Mishimoto Air to Water Intercoolers
250 Pound Weight Reduction

 

[Landon]

Here is my setup. 305/35R19 on an 10.5” wide wheel...

Quick question about the daytime running lights (3rd picture). Do you customize the color of the daytime running lights to light blue?

Where did you get those light blue color daytime running lights?

I saw a new Toyota Supra running around my area with a light purple color daytime running light.

 

[TheMarkedOne]

I think that is the cameras doing. In person it looks white. That would be a cool mod though to make it a light blue.

 

[VR30Infection]

I have no idea how much power I am making. Currently running E60-E85 and tuned by Mark Rainville @ Sonictuned. Trying to chase stock turbo records. Here are my power mods...

Rae-Motorsports 3" Titanium Intakes
Z1 Low Pressure Fuel Pump
Z1 Heat Exchanger
AAM Race Full Downpipes
AMS Stage 1 High Pressure Fuel Pump
AMS Nissan Z Flex Fuel Kit
AMS High Pressure Fuel Sensor
Custom Center Dumps
Mishimoto Air to Water Intercoolers
250 Pound Weight Reduction

How did you put your Z on a 250 lb diet?