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Rebuild Gtr Front Diff

jays r33 gtr
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Duncan Grand Master

Duncan

Posted
Posted

thanks Jayson

Jimmy I did the rear diff 10 years ago :) The diff(erence) is that rebuilding the standard rear is fine, and as it is used more often is likely to be a bigger difference. In the front the quaife LSD is a particularly good option because will power understeer less than a normal mechanical diff, but it's not a priority unless you are genuinely getting wheel spin at the front wheels.

Piggaz Grand Master

Piggaz

Posted
Posted

As I'm not running huge HP, the front diff isn't really necessary?

It's not power related, it's HOW it drives and pulls out of corners.

Think of two big bear claws ripping at the road I front instead of some shitty open diff attempting to do something.

XKLABA Grand Master

XKLABA

Posted
Posted

If the motor is out and you have to do diff anyway then it's a good time to put the quaife in, but as Duncan said its not a necessity to pull the diff apart from a running car until you have big power spinning tyres but while it's apart it's a good mod to do

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Would you guys do mods to the front diff first than the rear? If so, why?

Read on :D

About $1,300-$1,400 ish landed, depending on exchange rates.
Just Jap have them too.

I've said it before and I'll say it again. It was one of the best mods I've EVER done to the car, I wish I did it years ago.

100% agree.

After I put the Nismo centre into mine... Holy feck, totally changed the car into a grip machine.

You MUST have a rear diff done as well to compliment it though IMO. Especially if you have A-LSD, which the OP will have... The A-LSD firmly shits itself once you put a decent front diff in as there is so much grip forward it doesn't know what to do at the other end. Add 15+ years of wear, it's not pretty.

So if you do one, you do both as a rule or at least get the rear done not long after as it's pretty shit to drive in a spirited fashion.

Just out of curiosity what is the benefit of adding an aftermarket diff to the GT-R and how does it behave with Tarzans G-box?

http://www.nengun.com/do-luck/tarzan-g-box

Mechanical over electronic in terms of what you get more gains from for that type of stuff. Transfer case & Front/Rear diff combo will blow a controller outta the water, it'll also cost you about 4-6k more :)
In basic terms the 4WD controllers are controlling the amount of power sent forward, sooner etc as XKLABA said. However if things are worn like the transfer case, diffs and so on, there is only 'so much' electronics can help with and this is where doing the mechanicals really makes the biggest difference.
JimmyRickard Mentor

JimmyRickard

Posted
Posted

Diffs are the next big ticket item on my agenda.

I'm thinking shimmed rear and quaife front. Would be the best bang for buck option?

In basic terms the 4WD controllers are controlling the amount of power sent forward, sooner etc as XKLABA said. However if things are worn like the transfer case, diffs and so on, there is only 'so much' electronics can help with and this is where doing the mechanicals really makes the biggest difference.

If anyone is interested at all in digital g sensors, make sure you check out the Do-Luck DTMII. It has the same features as the Tarzan GBox but also uses throttle input to adjust the attessa. check it out here: http://www.r33gt-r.com/2013/10/do-lucks-dtm-ii-part-1-installation.html

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

I'm yet to get a chance to drive Paul's car with the Quaife front to see how it differs to the Nismo... But yeah for a budget that would be a good option with a shimmed rear, you are luck you have a 32 - makes it much cheaper than a R33 Vspec lol.

Once you do transfer case F/R diffs - you'll soon see you probably wouldn't even go and get a controller... You will seriously love the improvements proper diffs give.

Piggaz Grand Master

Piggaz

Posted
Posted

^^. After putting the Nismo in the rear, it has taken a bit of the front drive away. That GT pro is one aggro mofo. After speaking to Chris last time I was down, they do a few cheeky mods to it (which is no surprise). Mine is currently set on medium which is waaayyy too crazy balls. I'll back it off and when the box comes out, get the transfer case mod done. That should sort it out.

I too would like to see how the Nismo front differs. With the stock diff there was a fair whack of torque steer, with the Quaife it's 95% gone I'd say. What you think is too early to get on it, it's not. I've turned around to redo the corner and basically get on it as soon as I tip it in. Best. Mod. Ever!

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