hey,

i have JDM type R B18C (prolly a 1996) and i did a compression test on the engine and had some numbers.

i was wondering how much CR should i be getting normally if the engine was healthy..

i managed to pull 200 from the 4th cylinder and 190 to 195 for the 3rd and 2nd cylinder and 210 for the 1st cylinder

cylinder configurations as follows
[4] - [3] - [2] - [1]

internals are all stock. (or so it seems as i've never torn it apart and previous owner did not mention anything)

i do believe that 96-spec ITRs have a slightly lower compression ratio than 98-spec ITRs.

anyone? Thanks!

 

bump

 

Before anyone else does

SEARCH

My USDM R engine registered 215 across the board when it was healthy...I believe that motor is supposed to be 10.8-10.9:1 or so if I remember right....Im guess your early spec R motor should be about the same fresh...a little leak down now should be expected

best of luck

 

i appreciate your answer but i just wanted to compare real world numbers with the car.

i know the stock numbers but i want to see how others fared with a similarly aged engine.

thanks though.

i do search.