lsx 408 rwhp...is this good?
#23
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You could pick up a chunk of hp and tq by upping header size, doing a FAST 102, and going to true duals. The degree to which you would benefit from a tune depends on your combo and how spot on the current tune is. I'm betting you would benefit significantly from a retune, you'd be getting significantly more airflow in and out. If you do all of it, I would not be surprised if you picked up 40+ at the tire. Excellent numbers regardless.
#24
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You could pick up a chunk of hp and tq by upping header size, doing a FAST 102, and going to true duals. The degree to which you would benefit from a tune depends on your combo and how spot on the current tune is. I'm betting you would benefit significantly from a retune, you'd be getting significantly more airflow in and out. If you do all of it, I would not be surprised if you picked up 40+ at the tire. Excellent numbers regardless.
#26
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Don't be surprised if at lights people stay back a half a length. THAT's respect!
#30
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OP Dyno sheet Posted
#34
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Is this an LQ9 stroker? Or can it be an LS1 variant stroker? Or can it be a very NON stroker 408 cid from a certain car somewhere... there are more than one way to build a 302, 327, 347, 383, 377, etc... 406 could be a 2-piece rear main seal. So the guy says 408, doesn't mention the rear seal or generation, could be anything? obviously this is not a 2-piece block but you see what I mean.
#36
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Is this an LQ9 stroker? Or can it be an LS1 variant stroker? Or can it be a very NON stroker 408 cid from a certain car somewhere... there are more than one way to build a 302, 327, 347, 383, 377, etc... 406 could be a 2-piece rear main seal. So the guy says 408, doesn't mention the rear seal or generation, could be anything? obviously this is not a 2-piece block but you see what I mean.
#38
11 Second Club
Back to the op. That motor is strong but it does look like your AFR could use some touching up. At about 6300-6400 it goes under 12. Maybe It would help carry the power further rather than nose over at that rpm.
#40
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If you're going to switch your intake/exhaust, perfect time to get it touched up & see the effects of the changes.