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stock ls1 made 322HP and 343TQ?

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Old May 8, 2008 | 12:46 PM
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Default stock ls1 made 322HP and 343TQ?

Hey guys im selling my LT1 formula today, and am looking for a new car. I pretty much have my mind made up on getting an 04 GTO. The guy that owns the car had it on the dyno and it made 322HP and 343 Torque at the wheels..I dont know a whole lot about LS1's but it seems a little high especially for just having a K&N airfilter. I talked to him and he said that was on a dynojet. Im planning on putting longtube headers on it, getting rid of the cat(s), and get a tune for it. Can anyone give me a ball park on where I should be at with it(RWHP)...by the way, its an M6.
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Old May 8, 2008 | 01:00 PM
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i had mine on the dyno and i made 329hp and 348ftlbs on a mustang dyno with only a lid and K&N. M6

People say longtubes give bout 20 hp, i haven't had mine on a dyno since the LT but, track times dropped by 4 tenths
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Old May 8, 2008 | 01:01 PM
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Those numbers are very reasonable.
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Old May 8, 2008 | 01:05 PM
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Do you know what make the dyno was? Many will argue that a Dynojet will show higher numbers than a Mustang Dyno. Either way it sounds like a very strong Goat! Are you sad to see your LT1 go or are you just looking forward to the LS1 too much to care?
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Old May 8, 2008 | 03:13 PM
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Yeah, that sounds to be one of the higher scoring stock cars out there, but definitely believable.

Keep in mind when switching from LT1 to LS1 that the torque comes in much higher. It wont feel as strong from a 2K punch, but it'll practically tear your face off from a 4500 rpm punch.
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Old May 8, 2008 | 08:13 PM
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Originally Posted by hoss 2000 z-28
Do you know what make the dyno was? Many will argue that a Dynojet will show higher numbers than a Mustang Dyno. Either way it sounds like a very strong Goat! Are you sad to see your LT1 go or are you just looking forward to the LS1 too much to care?
I do believe it was a dynojet. And yes im sad to see my LT1 go, I had a lot of good times in that car. But hopefully on to bigger and better things.
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Old May 8, 2008 | 08:15 PM
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Originally Posted by GuitsBoy
Yeah, that sounds to be one of the higher scoring stock cars out there, but definitely believable.

Keep in mind when switching from LT1 to LS1 that the torque comes in much higher. It wont feel as strong from a 2K punch, but it'll practically tear your face off from a 4500 rpm punch.
Ya, im kind of excited for being able to have a better top end, according to my dynos my LT1 pretty much fell on its face around 5500ish.
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Old May 8, 2008 | 08:51 PM
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Corrected dynojet #'s on my '04 goat when stock were 316/334. Temp was 82f. Maybe you found a strong one, good luck!
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Old May 8, 2008 | 09:09 PM
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My WS6 with just a lid made 323hp 339tq....So its very believeable.
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Old May 8, 2008 | 09:38 PM
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was it m6 also because i hear they also dyno higher then auto's
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