Sforteen
01-21-2014, 08:23 PM
I don't post much, but i figured id post this up as not a lot of people seem to have done this.
This all started because i have broken 2 R200 pinions on fairly low power. I figured if i'm gonna upgrade the rear end might as well do it with the strongest Nissan offers..
Q45 and GTR R200 rear ends are tougher than S chassis r200's due to the larger pinons however they still have small rings and smaller output shafts.
The R230 is only about 5/16 of an inch wider than an R200, and approximently 1 inch taller.
The bolt spacing and location for the rear cover is different than the S14 R200 and front is spread apart further by 1 inch. Not really that big of a difference..
All i did was cut the pinion tunnel out deeper to allow the R230 to sit down into the subframe without bottoming out before it gets to sit on top of the fastening location. Removed the factory cage nuts and relocated them further out. Im using ES poly subframe bushings which have a .75" collar to space the subframe away from the chassis, this helped with clearance, combine that with a slightly thicker solid rear end bushing and i about got my extra inch of rear end housing clearance back.
The rear bushing housings on the subframe i cut out entirely as well. I will let pictures do the rest..
I also finished welding what the factory left behind and installed a subframe reinforment kit i got from Enjuku, and added a few touchs of my own, Its painted with Eastwood extreme chassis paint.
Questions comments feel free to ask.
This all started because i have broken 2 R200 pinions on fairly low power. I figured if i'm gonna upgrade the rear end might as well do it with the strongest Nissan offers..
Q45 and GTR R200 rear ends are tougher than S chassis r200's due to the larger pinons however they still have small rings and smaller output shafts.
The R230 is only about 5/16 of an inch wider than an R200, and approximently 1 inch taller.
The bolt spacing and location for the rear cover is different than the S14 R200 and front is spread apart further by 1 inch. Not really that big of a difference..
All i did was cut the pinion tunnel out deeper to allow the R230 to sit down into the subframe without bottoming out before it gets to sit on top of the fastening location. Removed the factory cage nuts and relocated them further out. Im using ES poly subframe bushings which have a .75" collar to space the subframe away from the chassis, this helped with clearance, combine that with a slightly thicker solid rear end bushing and i about got my extra inch of rear end housing clearance back.
The rear bushing housings on the subframe i cut out entirely as well. I will let pictures do the rest..
I also finished welding what the factory left behind and installed a subframe reinforment kit i got from Enjuku, and added a few touchs of my own, Its painted with Eastwood extreme chassis paint.
Questions comments feel free to ask.