No 1988 BMW 325e in ITA?

[ssilver88]

Does anybody know why only the 1984-1987 325e is allowed in ITA? Thank you for everyones time.

Sean

[Chip42]

It's not been looked at recently, but if I recall there's a change to the head or cam or soemthign that moves the potential of the Eta motor out of ITA ranges. someone may very well tell me I'm wrong here, it's just what I remember.

[mossaidis]

EDIT: "In its final year, the 1988 325 (dubbed "Super Eta" by enthusiasts) was equipped from the factory with special pistons, 325i head/exhaust system, and Motronic 1.1 engine management control, bumping horsepower up to 127 and raising the redline to 5500 RPM."

http://www.e30info.com/pages/diff.htm

Need to consider if update/backdate would impact weight.

[ssilver88]

Thanks guys I guess I should look out for the earlier cars then

[chuck baader]

Have been researching this...bottom end is the M20B27 as are all ETA motors, 84-87. In 87 the ETA cam was changed to a 7 bearing cam with the same numbers as the earlier ETA cam. (The 7 bearing cam that was standard in the later "i" motors is a different lift/grind) The "i" head was added in 88 and because of that the compression ration dropped from 9.0 to 8.8. Piston part numbers are different and are the "i" top configuration with the pin moved for that one year. The intake manifold is the earlier "e" type as is the throttle butterfly but with the intake ports matched from the factory. So basically it is the old ETA motor with less compression, 6 more horsepower, and another 500rpm to play with. Wish it were classified in ITA as I would like to play with one.

BTW, you can put a standard ETA motor in that car and play. All e30 chassis cars are the same. Chuck

[ssilver88]

Wow thats a lot of cool information

[chuck baader]

Max torque (an unknown quantity on a Honda) occurs at 3600rpm on my ITA motorChuck

[vicktorvolpe]

EDIT: "In its final year, the 1988 325 (dubbed "Super Eta" by enthusiasts) was equipped from the factory with special pistons, 325i head/exhaust system, and Motronic 1.1 engine management control, bumping horsepower up to 127 and raising the redline to 5500 RPM."

http://www.e30info.com/pages/diff.htm

Need to consider if update/backdate would impact weight.

redline of 5500....as a honda guy does it hurt to say or think that?