05gsxr750 wrote:i heard of a guy useing a rb25 bell housing on his sr20det trans for his rb25 car when his trans went out and people local use sr bell on ka trans when there sr tran goes out. not too sure but it might work....there's a guy on ebay selling his rb25det powered coupe right now that has a bad trans in it and he has a sr trans to throw the 25 bell on to make it work.. so im leaning towards yes but i do not know.
That is not possible......RB25 trans are 30A's, same as a Z32, and SR trans are 71C (RB20, CA18, SR20, and KA are all 71C). A 30A bell will not fit on a 71C trans......they are VERY different. What you are saying would be possible if it were using an RB20 bellhousing.....
I'm the "local guy" BTW
I have put an RB20 bellhousing on a KA block, the dowels line right up, and only 2 bolt holes need to be modified, one of them is extremely close & could be done with a die grinder in a few minutes.
The RB trans' are a little shorter overall than a KA trans, so I'm interested to see how this turns out also.....I think shifter location/driveshaft length may be a problem, but we are gonna find out.