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On Fri, 2006-09-29 at 20:18 -0400, Keith Park wrote: > First off, Id start by putting back together the correct matching set of FI > components, the time spent making the mismatched parts work together will > exceed the time spent finding the right ones, and they will probably never > work properly together and could shorten engine life by having the mixture > wrong. Engine life is critical to mixture in our engines. You want a > matched set that match the car, not necessarily the case... the 72 engines > were the same internally as far as what mixture is needed except for the > fact that they had dished pistons originally. > > Correct me if Im wrong but wouldn't a T4 tranny be a very incorrect match > for the T3 engine since the T4 engine has so much more Torque and some had > more HP? I would think the shift points would be all wrong and probably the > axle ratio too.... > I know the Manuals are not swappable with ease, this isn't the case with the > autos? > > Keith T-4 automatic's had a lower differential ratio. This will throw off the shift points. The govenor is driven by the differential. Also, if the timing isnt right, the manifold vacuum won't be right. -- russw <russw@classicvw.org> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~