EZ30R Cam Specs, EZ30D and EJ255 comparison
Posted: Sat Jul 12, 2025 8:12 pmRecently, I went on a deep dive and measured a set of EZ30R cams and derived real valve motion for the curved buckets. I could not find the results of anyone having done this. They turned out to be pre facelift spec. I had a pair of EZ30D and EJ255 WRX cams with which to compare.
I was very interested to see the comparison to the EZ30D, as that’s what I have swapped into my car. Turns out, they are not that different.
Testing the forum capabilities before making the full post. More to come
I was very interested to see the comparison to the EZ30D, as that’s what I have swapped into my car. Turns out, they are not that different.
Testing the forum capabilities before making the full post. More to come
- Group plot INLET cams.png (62.02 KiB) Viewed 20274 times
- Group plot EXHAUST cams.png (51.22 KiB) Viewed 20274 times