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What is the highest amount of boost that I can (safely; conservative numbers) run (from a turbocharger) on 9:1 compression, with 91 octane pump gas? A little info on the application: 9:1 compression (as stated) Inline 4-cylinder engine with Dual Overhead Cams, 4 valves per cylinder cnc...

Hey, I have a 1.9L I-4 DOHC engine with 135whp. What is the best Standalone Engine Management System out there/which would you suggest? N/A car switching to Turbocharger. Thanks!

Hey guys, just joined up recently, and wanted to point out, there's no area for Saturn guys like myself. I would like some help on a build, so having a place for it would be great. Thanks! :)

Hey there, I'm SaturnSpeedster. I have a 5-speed manual '97 Saturn SC2 with a lot of potential. 1.9L DOHC "LLO" engine. Stock, it had 102 hp at the wheels, but after modifications (2 1/2" cold air intake, 90mm throttlebody, header, swapped the 2" cat to 2 1/4" high-flow cat, and 2 1/4" straight...