masterx81

iTrader: (4)

Hi! I've bought an engine to put under the bonnet of my car for use it until i end the new engine (big engine build that require a lot of time...).
The old engine had V4 heads, Euro EFI 96 ecu, plastic pulleys, v4 wrx cams and mechanical over-buckets.
The engine that i've buyed has v3/v4 bottom end, v1/v2 heads (square access holes), v3/v4 timing belt, metal pulleys, v3 cams with hydraulic lifters, v3/v4 pas pump, inlet manifold and rails... Seem that subaru has done this mix, as noone have never opened this engine.
The ecu don't use anymore the maf, and i think it use the Speed density algorithm.
I want to put on the road the car with the less effort that i can (no ecu reprogramming, etc)
I know that heads (castings, valves, etc) are nearly the same from v1/v2 and v3/v4, and the only thing that can change are cams (or maybe the valve springs).
Someone know if i can put safely the ecu with this cams or i need to swap the cams/buckets?
Thanks!

masterx81

iTrader: (4)

Cams are for sure different, the one marked v3 with hydraulic lifters (wrx) are 7.7mm in lift, while the v4 for mechanical (shim over bucket wrx) are 8.4mm.
I hope if i put the v4 cams on that the springs not suffers from coil bind due to the 0.7mm more lift (but i not think so...)