4.08 Frontier gear swap

Dwnshift

FYI....We run this final drive in our RC in t Conti challenge. Final drive seap is one of yhe bestbthing you can do for improved acceleration...espc for a track car.

KB2

any word on this for the 7at?

Nuki

After reading this thread, this is now on my short list of mods to do to the Nismo. I would imagine this would be one of the very best things to do if you're staying with straight bolt ons. I'm kind of surprised no one has come up with an ecu flash to adjust the issues with SRM (I would assume since its not a mechanical thing, this could be programmed somehow.)

Good info.


(I'm gonna look and see if there are any reviews of the 4.3 FD.)

L33T Z34

I've got the 4.36 final drive sitting on the shelf in my garage. I can't wait to get this installed w/the polyurethane rear diff mounts over the upcoming winter.

atx370z

I asked Uprev about this and they said that currently they are not able to change the shift points for the SRM, but would look in to it. This was several months back and I'm pretty sure nothing came of it.

__________________
Berk HFC & CBE, Stillen G3's, AMS Crank Pulley, JWT Flywheel,
4.08 Gears, UpRev, H&R Springs and 20mm Spacers, JDM
Rear Fog, EVO-R Front Lip and CF Upper Cover, 305's

DR_

It seems to me if a good shop would offer installed packages there would be lots of demand. This is what happened in the S2000 community and it worked great. A quick search shows lots of doner diffs out there so getting a core isn't as bad as it was for the S2000. This allows you to buy a core and send it off to get the work done and not be down while getting the gears installed. The shop could install a good LSD while in there as well. Hopefully this has already happened and I just haven't read about it yet.

babbagandu

What's a rough estimate of what a good shop can be expected to charge for installing new gears?

luigi90210

depends on the shops hourly charge and how long it takes them

just ask the shop you have in mind how much it would cost and they should be able to help you out

ON TOPIC
is there a noticeable difference with taller gears?

dthem370

I'm getting 4.08s installed next week on Dec. 6th on my 7AT. I will do a full review on them. As for price I got quoted 500 bucks.

luigi90210

im looking forward to your review, i have a 6MT but i personally dont know much about gearing aside from taller gears make you accelerate faster, and shorter gears make your top speed higher

any real world gains by doing a mod like this? and will SRM work after this, if not than can a tune fix SRM?

dthem370

Based on my research, SRM will be off by like 300 RPMS for the manuals and people say they don't even realize it that much. There is no fix for that as far as I know. Also, someone reported the SRM will automatically turn off once you exceed speeds around 120MPH, but after turning the car off and back on it works fine again.

The gears (4.08s) will make you accelerate much faster. It can take off a few tenths of your quarter mile time and improve your 60' times.

You will lose top end speed, meaning you can know only go to something like 180mph instead of like 200mph. Realistically I don't think any of us will ever go that fast so that's not much of a concern for me.

You will lose some MPG because your RPMs will be higher (500RPMs higher) when cruising around, especially on the freeway. I personally don't mind it b/c if I was concerned about MPG I wouldn't have bought the Z in the first place.

The hardest thing is keeping traction with the gears from what I read. So make sure if you upgrade the gears to have a good set of tires and a good differential (stock VLSD at the minimum).

I will post more info soon when I create my review.

Presto

Can you list what all parts you bought and from which vendor?
Are you keeping the stock vlsd or aftermarket LSD like os given or quaife?

dthem370

I will list the parts and stuff I got when I create my review. I personally kept the stock VLSD but I wish I had the extra money to get a better limited slip. I should be fine though since I will be driving it mostly on the street and my car will see very little track time.

Z eliminator

your cruse control wll not work if you have a 7 AT

__________________
12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

SPOHN

Where are most of you guys buying your 4.08 gears from? I'm always searching for best price.

__________________