LS1TECH - Camaro and Firebird Forum Discussion

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Old Jul 6, 2008 | 06:03 AM
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Default Quick question
Did the regular base corvette LS1 come with any different cam? Besides the switch in 2000 or whatever it was. When they went a tiny bit smaller? I had some guy saying that all vettes had a bigger cam than Fbodies tonight. I was under the impression a LS1 is an LS1 is an LS1 besides year differences.
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Old Jul 6, 2008 | 06:17 AM
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That guy was full of ****... The 98-99 F body cars had a slightly bigger camshaft on a wider LSA
https://ls1tech.com/forums/showpost....87&postcount=9
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Old Jul 6, 2008 | 01:42 PM
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Yeah and the vettes had the same one according to year right?
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Old Jul 6, 2008 | 02:26 PM
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Default Gen III Camshaft Build Sheet
Corvette (LS1):
'97-'99 199/207 0.472/0.479 117
'00 198/209 0.500/0.500 115.5
'01-'03 198/207 0.467/0.479 116

Corvette (LS6)
'01 204/211 0.525/0.525 116
'02-'04 204/218 0.555/0.551 117.5

Camaro/Firebird:
'98-'00 198/209 0.500/0.500 119.5
'01-'02 196/207 0.467/0.479 116
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Old Jul 6, 2008 | 02:38 PM
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LS1 Camshaft Specifications
1998 - 2000 Fbody
202/210 int/exh @ 0.05" duration
0.496" / 0.496" int/exh lift
116 LSA

2001 - 2002 Fbody
197/207 int/exh @ 0.05" duration
0.467" / 0.479" int/exh lift
116 LSA

Thats what I found from smokemup.com Seems to be different than yours? Where was yours from?
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Old Jul 6, 2008 | 02:52 PM
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My info is straight out of SA Design's How to Build High-Performance Chevy LS1/LS6 V-8's.
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Old Jul 6, 2008 | 02:53 PM
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hmm. Hate when all the sources had different info, makes **** confusing
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Old Jul 6, 2008 | 03:04 PM
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Originally Posted by Almostryan3
hmm. Hate when all the sources had different info, makes **** confusing
The differences between one LS1 and another are pretty minimal. Not enough to change it from a drivers race (neglecting weight differences between the vettes and the Fbodies).
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Old Jul 6, 2008 | 03:17 PM
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Yeah well this guy was bent on saying they made more power because they had a bigger cam, thats why the vettes were rated at 350 and the camaro was rated at only 305.
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Old Jul 6, 2008 | 03:26 PM
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did you tell him it was just a marketing move by gm?
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Old Jul 6, 2008 | 03:27 PM
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I told him he was an idiot
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Old Jul 6, 2008 | 05:20 PM
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Originally Posted by Almostryan3
I told him he was an idiot
haha good one man. I remember hearing another slight difference was the fact that vettes come with true duals. I imagine that would be a difference power wise (though not 40 ponies as they are quoted)
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Old Jul 6, 2008 | 09:31 PM
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Originally Posted by sketterman
haha good one man. I remember hearing another slight difference was the fact that vettes come with true duals. I imagine that would be a difference power wise (though not 40 ponies as they are quoted)
well remember that the manufacturer rates them at crank hp, which shouldnt be effected by the exhaust. at the wheels there is a difference.

the motors were slightly different though, as the corvette had drive-by-wire and the alternator on top, F-body had drive-by-cable and the alternator down below.

and yes, in 01, 02 the cam was downgraded in the F-body because of the addition of the LS6 manifold.
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Old Jul 6, 2008 | 11:08 PM
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Was it downgraded in the corvette or do all the corvettes have the early Fbody cam?
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Old Jul 7, 2008 | 12:54 AM
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Originally Posted by sketterman
haha good one man. I remember hearing another slight difference was the fact that vettes come with true duals. I imagine that would be a difference power wise (though not 40 ponies as they are quoted)
https://ls1tech.com/forums/showpost....8&postcount=10

Heres a direct comparison of stock Vette VS Trans Am.....

This one thread that JRp came up with back in the day can pretty much sum up any other related questions you guys have...
https://ls1tech.com/forums/new-ls1-owners-newbie-tech/213148-jrp-s-faq-commonly-asked-questions.html
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Old Jul 7, 2008 | 02:30 AM
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Originally Posted by fast01z28
and yes, in 01, 02 the cam was downgraded in the F-body because of the addition of the LS6 manifold.
As I understand it, the cam specs were changed to have built in exhaust gas recirculation, thus allowing the removal of the EGR from the intake manifold. It just so happens that they developed a better flowing intake manifold at the same time, which in turn compensates for the cam.
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Old Jul 7, 2008 | 09:54 AM
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Originally Posted by ss.slp.ls1
As I understand it, the cam specs were changed to have built in exhaust gas recirculation, thus allowing the removal of the EGR from the intake manifold. It just so happens that they developed a better flowing intake manifold at the same time, which in turn compensates for the cam.
oh. the way Scott Settlemire explained it to me, they didnt want to increase the hp of the car, so when they increased flow they compensated with the cam.

I like your explanation better though.
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Old Jul 7, 2008 | 11:45 AM
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Originally Posted by james562
https://ls1tech.com/forums/showpost....8&postcount=10

Heres a direct comparison of stock Vette VS Trans Am.....

This one thread that JRp came up with back in the day can pretty much sum up any other related questions you guys have...
https://ls1tech.com/forums/showthread.php?t=213148


Damn good links man. I always hear about the underrating of the FBodies but thats the first proof I've seen with side by side, year to year comparisons
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