I will most likely go FI in the future. I would probably go supercharger instead of turbo though so I think the gears should still be ok. (As long as I get some kind of reflash to raise my revlimiter)

 

that steep of a gear would be worse for you if you get a supercharger. what are you trying to accomplish? just making it faster?

 

I wont go supecharger for a while.. not anytime soon but I know I will eventually.
I want these gears to hold me off of trying to justify FI right now. I dont want to install them and feel like it was a waste of money and I should have just used the money to go SC.

 

ahh, i see where you're getting at. well, i've done gear changes one too many times and i'll tell yah that saving up for that SC is far better than a set of gears. Not saying gears are a bad mod (by all means if you're staying n/a gears all the way), but if you plan on SC later on, please don't be stupid and install the gears.

FI > Gears anyday. Does this answer your question?

btw, how much quicker will your car be in the 1/4 with the gears. ask yourself that and get a comparable mod that's more cost efficient. I know in the muscle car world jumping from 3.27 to 4.30 got me .2-.3 quicker. just fyi...

 

Its really obvious FI>Gears haha.
However here is my dilema:

Vortech + minor supporting mods - $6000+

or

4.083 gears + installation - $1150
Nismo V2 body kit + paint/install - $2000
Helix Test Pipes - $125
Red leather seats + shift boot - $800
AVIC D3 + ipod interface - $650
Valentine V1 - $400
and still have like 800 left lol.

I think I want all the other stuff. haha.

I will probably go FI when I am out of college in a few years.

 

uh huh. get the gears.

 

how does the 3.9 fd compare to 4.083?

im thinking of going for the 3.9. Just wanted to go a little more conservative

 

depends on the supercharger

with a Vortech, for example, it would be awesome...great top end power from the s/c (Vortech does nothing down low in the revs) and good downstairs gains from the gears

would also work well with a low boost setup such as HKS, Stillen

 

read here:

https://my350z.com/forum/showthread.php?t=301451

 

 

Lolz~ :-)

 

has anyone already tried this combination before? because that's one hell of a gear and he just might run into traction issues. Worse if he 1/4 tracks the car (running out of gear & traction). Then again we don't know if he'll be tracking it. I don't know but making sure if anyone has already tried this particular combo yet.

I understand a centrifigal SC does less on the bottom end, but there is still a gain down low too. Of course it's nothing like a twin screw SC...

 

Has ne1 had problems with the ring and pinion lining up rite? I bought them and my installer cant get them to line up. Do i need a different carrier?

 

Send it to Injected. They did mine perfect.

 

Has anyone done this yet?? I have the Vortech SC on my Z and I think gears would be insane (roasting tires is FUN)!!

 

Yea i have a vortech and had the gears in for about 2 days but had to take them back out because they were making a real bad whining noise, i was told it was due to the gears not being lined up properly. This gearing was SOOOOO much better than stock though.

 

Newbie Question: Can the 4.08 gear be installed without an lsd? I have a base model. I was looking to install both, but It's pretty costly.

 

Yes.

But if you're going to be taking apart your rear-end you might as well buy a LSD at the same time, installation will most likely be cheaper.

 

ok.. I'll stick to plan A.

 

what does the install kit 2 from z-1auto include and is that all you need for the install?