Jump to content
SAU Community

9 Inch Diff For A R33 Can It Be Done

kris 44
 Share

Recommended Posts

kris 44 Contributor

kris 44

Posted
Posted

i am looking for the best way and cheapest way to change diff ratios as i am looking for 5.8 and 6.1 and 5.2 diff gears.So i am thinking it would be best to put a ford 9 inch in her but will it fit.

Link to comment
Share on other sites
PM-R33 Grand Master

PM-R33

Posted
Posted

You think a Ford 9" is going to bolt straight in.....

Am i reading this right? You want to go from 4.11 diff gears to 5.8 diff gears? What the hell are you trying to do?

Link to comment
Share on other sites
zebra Grand Master

zebra

Posted
Posted

Going from an IRS rear end to a 4 link rear end is not gonna be cheap.

Im rather Puzzled as to why you would want a 6:1 diff ratio in anything.

Link to comment
Share on other sites
PM-R33 Grand Master

PM-R33

Posted
Posted (edited)

I still want to know the answer to my question as why he wants such crazy diff gear ratios. The top speed of the car would be like 170km/h....

Edited by PM-R33
Link to comment
Share on other sites
kris 44 Contributor

kris 44

Posted
  • Author
Posted (edited)

Guys you can get a ford 9 inch irs diff. And i will need 5.8 and 6.1 gears becouse i am runnig a bert gear box so i will be runnig in top gear not 2nd or 3rd it is alot cheaper in speedway to go bert gear box then buy a really good light fly wheel and clutch and then keep replaceing gear boxs as you blow them

Edited by kris 44
Link to comment
Share on other sites
Duncan Grand Master

Duncan

Posted
Posted

one of the nissan vans runs an r200 with a high ratio (serena? espace?), there was a thread recently. It was about 4.9 I think.

Or maybe a custom pinion gear with the right ratio?

r200 is a very strong diff, and if you did actually have trouble with it (unlikely on dirt) there is always r220 out of 300zx that would fit.

Of course you can put a 9" in it, anything can be done with enough time and money, and sometimes it's worth it for reliability in a specific purpose.....not sure if there would be many IRS speedway cars out there?

Link to comment
Share on other sites
fletch rb30 Enthusiast

fletch rb30

Posted
Posted

How much power? Have you considered a hq 3 speed box? top gear is 1:1, they are cheap, lots of guys at home put them on the back of 350chevs in saloons in nz.

We ran a 6.5 9inch then went to a 7!!! it was like a worm gear!

Plus you can get the 9 inch head with an alloy nose and carrier to save a bit of weight.

Link to comment
Share on other sites
  • 9 years later...
  • 1 month later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • hardsteppa
      Rear suspension upgrades

      By hardsteppa · Posted

      A proper LSD.
    • Dose Pipe Sutututu
      Rb26 expected power

      By Dose Pipe Sutututu · Posted

      Timing map only tells part of the story, I've seen a few cars where the CAS has been adjusted so you might see 12 at the ECU but at the motor you could be seeing 8 kind of thing. A S15 I converted from PowerFC to Nistune had just that, CAS was turned back to have less timing than the ignition map itself lol... "Choonered".
    • Murray_Calavera
      Rb26 expected power

      By Murray_Calavera · Posted

      But your running 1.6 bar of boost, is it still 12 degrees of timing at 1.6 bar of boost? Also, is there e85 fuel at the petrol stations in Dubai?
    • Duncan
      Rear suspension upgrades

      By Duncan · Posted

      swaybar swaybar swaybar swaybar swaybar anyway OP, what is currently in your car, are they factory shocks and sway bar? Any sign anything else has been changed under there over the years? And as Murray said....what are effect you looking to change
    • Duncan
      Manual Shifter slightly bounces/moves/vibrates when accelerating/deaccelerating

      By Duncan · Posted

      Congratulations on your find  Did you mean it has 6k miles or was that a typo? Firstly, keep in mind some movement of the shifter is normal...it is a long rod hanging out of a box bolted to the engine. Having said that there are 2 next places to look: 1. Transmission and engine mounts. If these are worn or broken the shifter will move around more. They are reasonably easy to source and replace on a hoist, and possible but uncomfortable to replace car stands 2. On the bottom of the shifter there is a nylon cup that sits over shifter's ball end. If this is worn or broken the shifter will move around more than it should (but will still shift OK). That is a cheap part and requires removal of centre console, rubber shifter hole covers and a circlip in the gearbox shifter hole to remove the shifter. Re maintenance, as with any new import you should change all the fluids including transmission when you get it; never trust the seller and previous owners to have done the right thing. I am pretty sure R34 GTT is the same as earlier big box transmissions, so use any good quality GL4 75w90 trans fluid if it is shifting well (if it is hard to shift due to synchro wear, redline shockproof lightweight will keep it alive a bit longer before rebuild is required)
×
×
  • Create New...