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Thread: Gains from LS6 Head Swap
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02-27-2008, 04:00 AM #1
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- Dec 2007
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- Upstate NY
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Black- 2000 WS6
Gains from LS6 Head Swap
My car is a 2000 WS6 Trans Am M6
Im putting LS6 heads on my car and getting it tuned (Vette Doctors) and wondering what kind of power I should be making with my setup:
LS6 Heads (non ported)
Pacesetter Headers (Race Style)
Offroad Y Pipe
Magnaflow Exhaust
Fast 90/90
SLP Intake Bellow
Lid w/ K&N Filter
160 T Stat
NGK TR55
MSD Wires
Luk Pro Gold Clutch
Luk Lightweight Flywheel
Poly Motor/Trans Mounts
Any ideas of what kind of numbers I should be down? I was hoping for at least 350whp and 350tq....this is with a tune as well.
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02-27-2008, 04:02 AM #2
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- Dec 2007
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- Upstate NY
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Black- 2000 WS6
all the free mods as well....
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02-27-2008, 09:55 AM #3
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- Feb 2006
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You should your 350rwhp goal without breaking a sweat. I'll bet you'll likely see another 15-20rwhp over that!
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02-28-2008, 07:31 PM #4
No cam??? Fast 90/90 won't really do you any good if you don't need the flow. Add a cam in there and then you will really start seeing results.
But yes, I would imagine around the 350 RWHP/RWTQ is achievable with those mods with/without the Fast.
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02-28-2008, 07:34 PM #5
Isn't those numbers kind of low I got a lid,lt's ory,and tune pushing 364tq 352hp
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02-28-2008, 07:36 PM #6
its true about the fast intake I saw a 3hp gain from it before. That would disappoint me big time.
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02-28-2008, 07:52 PM #7
I was hoping someone with that experience would chime in. I have heard many seeing a 1-5 HP increase with it. Now down the road it will pay off. H/C and full bolt ons, I changed to a ported/port matched Fast 90/90 and 42 LB injectors from stock and picked up 51 RWHP and 27 RWTQ on a retune.
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02-28-2008, 07:55 PM #8
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02-28-2008, 09:49 PM #9
You'd be alot better off with that FAST if you'd get the heads ported and put a decent sized cam in there.
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02-28-2008, 11:24 PM #10
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- Aug 2005
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- cleveland ohio
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- 11,373
trans am 00 ws6- 1998 camaro ss vert
fast 90mm over ls6 is about 23- 28 rwhp gain alone with 90mm tb.
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02-29-2008, 07:40 AM #11
like stated though, that is ONLY with supporting mods, ie ported heads and a cam. If you don't intend on putting in at least a cam then you are wasting your money on a 90/90, you will get very minimal gain, around 1-5 RWHP/TQ. And for $1200+ thats a rip...now install a cam then the 90/90 and you will pick up 15-25 RWHP and 10-15 RWTQ over cam only. Install ported heads and cam then 90/90 and you will pick up 25+ RWHP and 15+ RWTQ over H/C cars. Each car reacts different, and tuning plays a huge roll.
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02-29-2008, 11:06 AM #12
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- Feb 2006
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- MD
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- 577
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02-29-2008, 11:24 AM #13
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