I know nothing about honda engines and just understanding vtec. Seems thats been around for some time too. Thats my mod idea for the insight go to the crz engine. For the sidekick with its 1.6 I like to think about one of the engines mentioned in this thread. Sounds like the vtec and 8 grand redline would be good as it goes 4 grand at 70mph in 5th. Its got rather short gears, so a high reving engine would be nice.