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HP gain with LS6 cam on an STS T/A?

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Old Mar 31, 2010 | 09:47 AM
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Default HP gain with LS6 cam on an STS T/A?

Does anyone have any good estimates how much power there would be gained with an LS6 cam in my 1998 STS turbo'd trans am.

I'm trying to decide if this is worth the effort or not. I've heard ranges anywhere from 25 to 50 HP. I think 50 would be worth it. but that's a lot of work for 25 HP.

the car is a 98 Trans am with an STS basic turbo kit, no intercooler. wrapped exhausts with cats deleted. LS6 intake, POrted & polished MAF and throttle body.

Thanks.
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Old Mar 31, 2010 | 10:41 AM
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i run an LS6 cam in mine and it's great for stealth and good for the budget. plus it builds lots of boost early. i would suggest unlocking lots of HP by running an Intercooler and going speed density.
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Old Mar 31, 2010 | 10:46 AM
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With the basic turbo kit it won't be worth it since you'll be moving your peak power to around 6400 rpms with that cam and your 60-1 turbo will be way out of efficiency.

Adding an inter cooler would be a much better mod.
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Old Mar 31, 2010 | 10:55 AM
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I do plan to add the intercooler.

I got a good deal on the cam, and was debating selling it or keeping it.
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Old Mar 31, 2010 | 11:22 AM
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For the amount of work involved, I would install a better blower cam.
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Old Mar 31, 2010 | 12:44 PM
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Originally Posted by Zombie
With the basic turbo kit it won't be worth it since you'll be moving your peak power to around 6400 rpms with that cam and your 60-1 turbo will be way out of efficiency.

Adding an inter cooler would be a much better mod.
what he said.

hang on to it and just use it when you upgrade the turbo later. do the innercooler for now.

i love the ZO6 cam works very well look at my sig. 630 with Zo6 cam and 317 heads. but the TQ on the thing was crazy 660 @ 3800rpm
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Old Mar 31, 2010 | 02:21 PM
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Turbo up grade is a must. MPT 70mm Will go nicley or a tc 76. More power is added that way.
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Old Mar 31, 2010 | 03:19 PM
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How bad is that going to increase the spool time though? that's my biggest worry at this point.
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Old Mar 31, 2010 | 03:25 PM
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Cant really say, the mpt 70 may spool by 3k the tc78 a 3.5k But you will see a major boost in hp. The stock cam is fine the ls6 is even better but like it was posted the 60-1 will be out of steam fast. I would do the turbo first and later a cam. plus u need a intercooler big time.
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Old Mar 31, 2010 | 04:41 PM
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i have a cam sitting here was the point. and i don't have a bunch of cash to throw into a turbo on this car.... priority is getting the other car together.
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Old Mar 31, 2010 | 04:44 PM
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Originally Posted by Y2K WS6
i have a cam sitting here was the point. and i don't have a bunch of cash to throw into a turbo on this car.... priority is getting the other car together.
Then leave it alone.
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Old Mar 31, 2010 | 11:26 PM
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Originally Posted by ss.slp.ls1
Then leave it alone.
yes!!
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