I've been doing some research on ways to combine my new 2.5 that broke a timing belt and still running 2.7 and actually found the most info on wikipedia. Haha!
Would anyone happen to know if i need to hone, drill in oil holes or modify the cam journals in my eta head to support the 2.5 cam?
Some photos for your help. :]


I'm bummed it doesn't have Recaro's but glad the interior matches and is in such good shape!

(the rest of the engine stuff is in the trunk btw.)
Super Eta-based
The easiest is to start with a September 1987 onward Super Eta and installing a 325i cam and springs, a complete 325i intake manifold with injectors (because 2.5 run on 12 volts,2.7 run on 5) voltsand throttle and plugging in the 325i engine control unit. Depending on which cam, chip and intake is used, this combination can make 180-200 hp with the stock 8.5:1 compression ratio and will rev to 6800 rpm.
The easiest is to start with a September 1987 onward Super Eta and installing a 325i cam and springs, a complete 325i intake manifold with injectors (because 2.5 run on 12 volts,2.7 run on 5) voltsand throttle and plugging in the 325i engine control unit. Depending on which cam, chip and intake is used, this combination can make 180-200 hp with the stock 8.5:1 compression ratio and will rev to 6800 rpm.
Some photos for your help. :]


I'm bummed it doesn't have Recaro's but glad the interior matches and is in such good shape!

(the rest of the engine stuff is in the trunk btw.)
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