5.7L Hemi with 09 Eagle heads etc making huge power
From another Z forum:
Just got off the dyno with this one. We've been hot on the 09 heads and intake on the earlier 5.7 since the parts were available just been waiting for someone to step forward and be the Guinea pig with the right supporting parts, primarily an exhaust that would match the 09 heads D port reasonablly. JSheap was that Guinea pig. I made a bold statement when I told him I could get his stock block 5.7 making 425 rear wheel all motor. Well, first pull made 406 with the air fuel in the 10's the third pull had 424.9 HP and we wound up with 440 HP and 415 TQ. Probably would have been more but the 08 limited us to 6000 RPM. This isn't a ringer dyno either it's acutally a bit on the tight side. I'm pretty sure there is another 15-20 HP available with a race gas tune as this wasn't a super aggressive timing curve given the 11.0 CR that the big chamber 09 heads yield with the stock gaskets.
This setup is stock block 5.7 with and srt max 112 LSA cam, big chamber cnc ported eagle heads with big exhaust valves, 09 intake manifold, dynatech long tubes, SLP dampener. We ran with no CAI (open throttle body) because Jason's new one had not arrived and the stock intake wasn't up to this engine. Could have been a few more HP had we been able to spin past 6K without up-shift.
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2005 Magnum R/T. Lots of mods.
2006 Magnum SRT-8. Some mods - more to come.
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