PDA

View Full Version : Sr20 with rb box?

soundboy
10-08-2013, 07:45 PM
What do you guys think about this? The gears will be better suited or best stick with the Sr20 box?

Sent from my GT-P3110 using Tapatalk 4
ultimateirving
10-08-2013, 07:56 PM
How do you mate them together?
soundboy
10-08-2013, 08:06 PM
Saw a few aftermarket adaptor plates online.
Kingtal0n
10-09-2013, 07:11 PM
I think the best box behind an SR20DET is the factory box.

because if you make enough power to break that, you have the wrong engine in the vehicle.
drag-sr20
10-09-2013, 07:15 PM
just posting around hrmm
ultimateirving
10-09-2013, 07:18 PM
I think the best box behind an SR20DET is the factory box.

because if you make enough power to break that, you have the wrong engine in the vehicle.

Sr makes too much power? Don't spew this blasphemy here!!
codunc
10-09-2013, 07:36 PM
i think an rb20 box is the same as ka/ca/sr so you should be able to use an sr bellhousing on it and it would work.
NAIRB
10-09-2013, 07:46 PM
Why wouldn't you just use a z32 tranny if you wanted an upgrade?? The stock gear ratios are fine for an sr.
rbs14kouki
10-09-2013, 08:05 PM
He is from trinidad !

Maybe its easier to have rb transmission over there !

Z32 ans rb25 transmission have the same gears inside

For shifter position you will have a better position with a z32 transmission because the rb25 you will have to trim the frot of the shifter hole and the bezel inside the car !

But if yout dont have a choice ! Anything is etter then a stock sr transmission
soundboy
10-09-2013, 08:40 PM
I have access to a Sr20 box. It's not that hard to locate. I'm just wondering if the rb boxes are better

I guess the stock Sr20 box is the best
zerodameaon
10-09-2013, 10:32 PM
RB25 trans is better, RB20 is the same.
fliprayzin240sx
10-15-2013, 07:45 PM
He is from trinidad !

Maybe its easier to have rb transmission over there !

Z32 ans rb25 transmission have the same gears inside

For shifter position you will have a better position with a z32 transmission because the rb25 you will have to trim the frot of the shifter hole and the bezel inside the car !

But if yout dont have a choice ! Anything is etter then a stock sr transmission

I ran an RB25 tranny in my SR20, the hole was further forward on my S14, basically modded the shifter but cutting it in half and rewelding it to have L shape to it to sit the the normal position.
CefiroA31
10-20-2013, 01:59 AM
My friend uses an RB25DET trans behind his SR20DET which has Comp Turbo 6262 Triple Ball Bearing Turbo on it, because he breaks 2-3 S13-14 trans after upgrading to that turbo, and has been beating on the RB25DET trans with no problem (drifting competition he just won the latest event of our national drifting championship, also compete on several 12 lap touring race).
Z32 VG30 trans is internally same as RB25DET trans. So just use the one you can get easier parts for the conversion.
soundboy
10-21-2013, 08:43 PM
Thanks again guys

Sent from my GT-P3110 using Tapatalk 4
soundboy
10-24-2013, 07:19 PM
Does it need a adapter plate?

Sent from my GT-P3110 using Tapatalk 4
japslapsilvia
10-24-2013, 08:00 PM
this is for a dog box but same principal applies

1-5th Straight Cut 5 Speed Dog Set for NissanSilvia S13, S14 - Pfitzner Performance Gearbox (http://www.ppgearbox.com.au/page.asp?productid=64)