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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 08-05-2011, 11:13 AM   #1
c72c
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Arrow FYI: S14 RB swap w/ stock driveshaft.

I didn't really look too hard to see if someone had already mentioned this, but just in case...

This is just an FYI, since there are plenty of how to threads for the engine swap its self.

We did an RB swap in our track car recently. At first we were thinking we'd need to order a drive shaft, turns out, we didn't.
Most people will use the rb25 transmission since they're more than likely using an rb25det. We, on the other hand, are using the rb20 transmission since we're using the rb25de and won't need the extra strength of the 25 mission. So If you don't plan on pushing much power and decide to use the rb20 mission, you can still use the factory 2 piece drive shaft for the 14.

Here's what we used.
R33 front cross member
S14 steering rack
RB25DE
RB20 transmission
*R33 auto transmission cross member
S14 (turbo) driveshaft

This setup will set your shifter maybe 3/4" to 1" forward from factory position.

*The auto cross member is curved the opposite direction as the 5 speed cross member. Using the auto cm, all four mounting holes line up perfectly.

Some pics for reference.
No pic of the shifter position, but it's good. No need to trim or adjust anything.

r33 c/m and s14 rack




5 speed cross member


Auto cross member


The two side by side.


S14 drive shaft

Hope this helps some of you if you decide to use a similar setup.
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Last edited by c72c; 01-04-2012 at 01:01 PM..
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