I did some more comparison, but can't find the valve timing specs for the 8.9:1 CR 3000GT SOHC 12v:

Montero/Raider
Compression Ratio = 8.9
Valve timing
intake open... 19* BTDC
close..........59* ABDC

exhaust open...59* BBDC
close..........19* ATDC

Diamante
Compression ratio = 10.0:1
Valve timing
intake open....16* BTDC
close..........66* ABDC

exhaust open...56* BBDC
close..........26* ATDC

Frank

Last edited by FrankR; 08/05/07 04:18 AM.
'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum