350z-900whp

iTrader: (2)

I have a question if any one know if the pathfinder 3.1 final drive gears or pumpkin will fit / bolt on 350z

This winter am going to retune my car for high hp , will be shooting for 800+whp on c16 or 109 oct fuel

As of now my car makes 609whp on 91 of with 3.3 fd , super fun to drive the gears useable.

Why am asking because I know some would say 3.3 is fine and its , it's about exploring new places for the community.

Also one of my friends her own a 350z with sp racing tt making 880whp with 3.3fd he says at this level it feels like 600+ whp 350z with 3.5fd you go through gears super fast

rcdash

iTrader: (18)

Assuming same torque curve and same gear, a 3.3 FD, 880 whp will be much faster than a 3.5 FD, 600 whp car. The ratios are not that different to account for such a huge differential in hp.

I don't think you will like a 3.1 final drive but it would be an interesting experiment. I would just find a pumpkin and take it to a shop to have custom axles made if the stockers don't fit.

Conway_160

iTrader: (1)

This is the speeds i came up with, with.a 7300 redline

350z-900whp

iTrader: (2)

This is pathfinder 2007 pumpkin, 3.14 final drive .

Am afraid that the suv came with different fd ratio ? Dose any one know for sure if its comes only with 3.1 FD.

The pumpkin look very similar almost identical to 350z

350z-900whp

iTrader: (2)

Is there's any way I can know for sure what size fd it's maybe by vin number ?

Conway_160

iTrader: (1)

Have to spin it, if im not mistaken or open it and count the teeth.

350z-900whp

iTrader: (2)

i found new info maybe a drop-in for 350z. i comes from 2016 infinityQ50 (turbo engine 3.0 v6) there FD is also 3.1, there are few pic of the pumpkin came across on the internet.

also the 4 cylinder turbo of Q50 2.0t have 2.94 FD not sure of the size though.

350z-900whp

iTrader: (2)

difference between 3.5 FD , 3.3 , 3.1 @7500 rpm for 350z manual

350z-900whp

iTrader: (2)

i know what do you mean, i was thinking of doing it and still am but spending almost 500$ to find out if the FD/gears will work/fit or not is something holding me back

jdm-v35

iTrader: (7)

from those pics they would not be a direct pumpkin drop in as the rear bolt is in a different place. MAYBE the gears would fit but you would probably have to just jump in and buy it to find out.

midz350

iTrader: (4)

The thing is that all of the Q50 models come with open diff.

Boingo

Regarding Pathfinders:

The diffs in the V8 are M205/R230. Both 2WD and 4WD use 2.937 gears.

The diffs in the V6 are the same R180a/R200 as before. 2WD's have 3.133 gears while 4WD's have 3.357 gears.

This is per the 2008 Nissan factory manuals.

The R200 has the best chance of internal gear/pinion being correct diameters to allow for using in the 350Z diff. There will not be a reference online to know without buying one and opening it up.

The Q50 unit is too small.

Rear differentials are based on torque ranges for design.