<div class='quotetop'>QUOTE(SDRacing @ Jun 27 2006, 11:38 PM) [snapback]56491[/snapback]</div>difference is compression ratio, the lq4 is a lower compression version of the lq9. from what everyone has said on other forums on here, the lq4 has different pistons, and since it runs at a lower comp. ratio could handle more boost. however the lq9 comes with more horsepower from the factory. ud have to weigh HP diff. that comes stock versus how much the boost will add because of the lower PSI ud have to run. LQ4=300-325 HP depending on air filter setup. lq9 = around 345 horses stock. anyone else wanna add info im missing???Hey guys, just curious which engine would be best for turbo setup. I would like to get close to 500 hp to compete with the SRT10. Engine is going in a 2003 reg cab 4.3 5spd.
Could you tell me what the main difference is in the two? cam/heads?
many thx,
Shane
[/b]
Reply With Quote