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Cam only Z28 vs full bolt on WS6

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Old 03-22-2012, 02:17 AM
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Default Cam only Z28 vs full bolt on WS6

The first car is a 2000 Z28. It was pretty much bone stock except for a magnaflow catback and SLP lid. My buddy is cheap so he wanted to do a cam only with a 228r with new valve springs and hardened pushrods . He is running stock exhaust manifolds, stock tune, stock everything else.

The second car is a 2002 WS6 with full bolt ons. Pacesetter headers, ORY, SLP LM1, LS6 intake, SLP UD pulley, SSRA, ported throttle body and it's been dyno tuned.

Both cars are M6 with stock 3:42 gears. Both drivers are about equally skilled.

They lined up and ran from a dig twice and both times were too close to call on who won. It was literally less than inches between the two cars.

We were impressed that the cammed car was able to hang with the full bolt on car. We thought the bolt on car would have pulled a little. The bolt on car dynoed at just under 400 rwhp. It should be interesting to see what the 228r does on the dyno.
Old 03-22-2012, 02:33 AM
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Originally Posted by cranny
The first car is a 2000 Z28. It was pretty much bone stock except for a magnaflow catback and SLP lid. My buddy is cheap so he wanted to do a cam only with a 228r with new valve springs and hardened pushrods . He is running stock exhaust manifolds, stock tune, stock everything else.

The second car is a 2002 WS6 with full bolt ons. Pacesetter headers, ORY, SLP LM1, LS6 intake, SLP UD pulley, SSRA, ported throttle body and it's been dyno tuned.

Both cars are M6 with stock 3:42 gears. Both drivers are about equally skilled.

They lined up and ran from a dig twice and both times were too close to call on who won. It was literally less than inches between the two cars.

We were impressed that the cammed car was able to hang with the full bolt on car. We thought the bolt on car would have pulled a little. The bolt on car dynoed at just under 400 rwhp. It should be interesting to see what the 228r does on the dyno.
thats one hell of bolt on car to dyno that high
Old 03-22-2012, 02:38 AM
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Yeah that's super high for bolt ons. Doubt the 228 is close to 400 whp
Old 03-22-2012, 03:42 AM
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Originally Posted by cranny
The first car is a 2000 Z28. It was pretty much bone stock except for a magnaflow catback and SLP lid. My buddy is cheap so he wanted to do a cam only with a 228r with new valve springs and hardened pushrods . He is running stock exhaust manifolds, stock tune, stock everything else.
The second car is a 2002 WS6 with full bolt ons. Pacesetter headers, ORY, SLP LM1, LS6 intake, SLP UD pulley, SSRA, ported throttle body and it's been dyno tuned.

Both cars are M6 with stock 3:42 gears. Both drivers are about equally skilled.

They lined up and ran from a dig twice and both times were too close to call on who won. It was literally less than inches between the two cars.

We were impressed that the cammed car was able to hang with the full bolt on car. We thought the bolt on car would have pulled a little. The bolt on car dynoed at just under 400 rwhp. It should be interesting to see what the 228r does on the dyno.
Couple things:

1) LS6 Intakes came stock on 01-02's.

2)Why was the Camaro running the car with stock manifolds, un-tuned?

3)What kind of magical dyno was the WS6 on to make almost 400whp with just bolt-ons?

That is all.
Old 03-22-2012, 06:05 AM
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^^^ LOL

Highly doubt its "actually" making that much with just bolt ons.. I've never seen a bolt on LS1 make 400whp. & I'm sure the cam only guy is in the 35x/34x range
Old 03-22-2012, 07:09 AM
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What rob said...
Old 03-22-2012, 07:18 AM
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Bolt on LS1 making just under 400whp..? There's a first time for everything I guess.
Old 03-22-2012, 07:48 AM
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I say 400 to the flywheel.
Old 03-22-2012, 08:21 AM
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Originally Posted by LS1rob00
3)What kind of magical dyno was the WS6 on to make almost 400whp with just bolt-ons?
Hey man, everyone knows that they call that dyno "the heartbreaker"
Old 03-22-2012, 09:04 PM
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I talked to the guy with the WS6 and he said it made 384rwhp on a dynojet. I was a little skeptical but didn't feel like arguing with him because he's so pleased with those numbers.

It was dynoed by a sponsor on the forum but I'll leave their name out of it instead of giving them a bad name.
Old 03-22-2012, 09:08 PM
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Are you guys sure it has a stock cam? I don't even expect to see 380rwhp with my setup.
Old 03-23-2012, 12:32 PM
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He must have been using one of those phone app dyno thingies, lol. Well I dont have a clue as to why anyone would run a cam with no tune regardless of how cheap he is and not having LT's just goes to show he completely waisted time and money doing the cam swap to begin with. Get some LT's and atleast a mail order tune from Frost if you dont want to spend the big bucks on dyno tune. When i got 350rwhp i was shocked and questioned the operator of the dyno to make sure everything was inputed correctly and i need the numbers to be realistic not blown up. I dont know how someone can walk around saying he is getting 385+rwhp from a bolt on LS1 without questioning it.
Old 03-23-2012, 12:41 PM
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Regardless of the power numbers, they sound like good runs!
Old 03-23-2012, 02:55 PM
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I bet you throw it on the track and it traps the same **** every other bolt on WS6 runs. Dyno's are tools used to see if you've benefited from adjustments you've done to your tune. Dyno numbers are invalid.
Old 03-23-2012, 02:57 PM
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I doubt a 228 cam only would get you past 330 hp at the wheels ,maybe I am wrong . 400 hp bolt on's only is hard to believe ! For example ,a while back my friend hit 400 rwhp with full bolt ons and ms3 cam ,ls6 intake ,speed density tune. Fast intake and throttle body brought it to about 428 hp from what I remember. Seeing some really high numbers lately from bolt on car's on this site !
Old 03-23-2012, 03:02 PM
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Originally Posted by adamantium
Dyno numbers are invalid.
When that's the case it's generally due to the human factor. Not everyone is honest and some people don't know what they are doing or when to question what they're being told.
Old 03-23-2012, 03:13 PM
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it running untund.can actually make it run slower..get some long tubes tune it and put car lenths...
Old 03-23-2012, 03:13 PM
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imo i dnt care about dyno numbers..its how fast it is on the 1/4
Old 03-23-2012, 04:24 PM
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There are a lot of factors that effect track #'s too, so I'll take both rather than one exclusively.
Old 03-23-2012, 04:26 PM
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Originally Posted by BayArea ws6
I doubt a 228 cam only would get you past 330 hp at the wheels
I put down 324rwhp/341rwhp with only FRA done to my 01... my crappy LS6 cam had to have broken 330rhwp on stock tuning.

Last edited by S8ER95Z; 03-23-2012 at 04:38 PM.


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