S14 SR20det - 94-96 vs. 97-98

[SonicS14]

i noticed on www.projectsilvia.com that they list the S14 94-96 and 97-98 engines seperately and im curiouse as to what is diferent between these two as i allways thought they were identical

[zero.counter]

Check the F.A.Q. on www.srswap.com for details.

[gregshin]

the only thing i know is that there are about 20 more sensors on the 97-98 engine then the 95-96

[SonicS14]

sensors for what? what kind of differance do they make?

[aeontony]

Are you sure? 20 more sensors?? Even with additional emission regulations I have a hard time envisioning a need for 20 more sensors..I can't even imagine what they'll sense :)

There's a thread on FA about this. From what I recall, there are fins on the timing cover (or was it above the timing cover) on the latter S14 SRs, whereas the previous generation is completely smooth.