X-Mozilla-Keys:                                                                                 

Subject: (rx7) 13B-REW into 1st Gen.

Its actually not as difficult to put the 13B REW into a 1st gen as it is a
2nd gen. since the front cover from a 1st gen. is interchangeable and the
engine mounting bracket bolts directly to the front cover. The 2nd gen needs
brackets mounted to the center housing and the 13B REW center housing does
not have this provision -you have to swap out the center housing in order to
install the engine to the stock mounts. I've installed REW engines in both
chassis and its much easier to do the 1st gen cars.

The advantages of the 13B-REW engine block are many but the most relevant are:

Improved stationary gears and multi-window bearings-Larger outer port
dimensions- Rear housing has  greater material reinforcement around the upper
dowel
pin- this is probably the biggest area of improvement for high boosted
engines- I've actually seen a T-II rear housing split open from the dowel pin
cracking the rear housing at 23 psi boost,( resulting in a very long walk
home). None of the previous rear housings have sufficient material surrounding
the dowel pin for brief boost levels (over 15 psi) or sustained boost over 10
psi.  Trust me -I got the "T" shirt while I was there on this one.

Marc

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