is it smarter to run smaller in the front than in the rear? or same on both?

i wanted to go 25mm on all.. but ive seen some go 15mm on the front and 25mm on the rear..

whats best?

 

depends on your offset, and wheel width all of this comes into play.

 

Have you looked in the official wheel spacer thread?

 

depends on your setup just like omsin said, for instance im on tein basic coilover kit, rear lowest setting still have collars.. front is low still another 1.5 in probably to go but not going to be doing that lol!, power to ya guys that do.- im running 25mm all around its very nice, 30 would be total flush.. but its all good man. 20mm up front might be better suited in my opinion, but 25 is flush up front - stock touring wheels from 04

 

What wheels? What size tires? What suspension?

 

Wheels are Drag Dr-11 (17x7)
Tires are front: 225/50zr17
Rear: 235/50r17

stock suspension. dropping it an 1.0" in the front and 1.2 in the back whenever my tanabe springs come in. but everythig else is stock

 

you have 17x7 rims? civics run wider rims than you

 

Checking online I think your offset is +40 which is worse than stock.

 

I'm hoping to upgrade to 19x9 soon though.

 

If you want to be flush its going to be hard with those wheels you will need like 30mm or more

 

Well I definitely want it to be flush. What if I waited till I upgraded to 19x9. I'm going to be running F: 245 and R: 275

 

I'd wait until you get the wheels you want to run with. Then you can see what you want to do. It will make a difference what the offsets are on those 19x9 that you are looking at.

Here are two shots of my Z with the v.1 track wheels. They are 18x8 +30 front and 18x8.5 +33 rear. I have 20mm spacers front and 25mm spacers rear. Take a look at the offset of those new rims and add and subtract accordingly.

 

yours looks pretty flush to me. but yeah, i'll probably end up waiting till i get my 19x9's. Its just theres so many more things i want to do to the Z, other than wheel spacers, lol

 

I understand. Spacers are a pretty silly thing to do for the most part anyway just to slightly change the look of the stance (but I did it anyway). When you do decide to look at them, I would suggest either buying a used set of Ichiba V2 spacers, or do what I did and get a set from an ebay company called "optionsselect". I've been very happy with them for DD.

Disclaimer, I take off the spacers when I put on my wheels for AutoX