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Forced Induction - V8 V8 Supercharger, turbo, nitrous discussions

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Old 08-18-2013, 12:27 PM   #26
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Quote:
Originally Posted by halo8hkk View Post
I'm at 618 on mine with just a CAI, whipple and a good tune.
On l99 or ls3
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Old 08-21-2013, 12:58 PM   #27
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I met a local guy who has headers, cam, and tune...put down 709 rwhp.

I just wish they had a slightly larger front feed...patience.

Building a 370" for my Chevelle!
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Old 08-21-2013, 01:24 PM   #28
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Originally Posted by LSxChevelle View Post
I met a local guy who has headers, cam, and tune...put down 709 rwhp.
with a whipple or just the mods listed above.
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Old 08-22-2013, 12:32 PM   #29
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Quick question from Newbie

I am new at this SC stuff. I don't understand why the L99 makes less power than the LS3 when supercharged. Is the AFM still active? I thought the engines were the same except for the AFM.


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Old 08-22-2013, 12:42 PM   #30
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Originally Posted by Jims Mongoose View Post
I am new at this SC stuff. I don't understand why the L99 makes less power than the LS3 when supercharged. Is the AFM still active? I thought the engines were the same except for the AFM.


Thanks
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That's why so many guys doing LS3 conversions that own L99 to be closer playing field??
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Old 08-22-2013, 12:57 PM   #31
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Here are the numbers on a Whipple install on a Stock L99 we just did.




With an LS3, you will probably see around another 20-30hp gain.

JT
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Old 08-22-2013, 01:15 PM   #32
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Yes, I see that

Thanks for the information.

I believe what you guys are telling me, but why? Why does the LS3 make more power?


Jim
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Old 08-22-2013, 01:33 PM   #33
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Originally Posted by Team STILLEN View Post
Here are the numbers on a Whipple install on a Stock L99 we just did.




With an LS3, you will probably see around another 20-30hp gain.

JT
Curious whipple on stock?? Would the buyer not want some headers or CAI for better breathing. I have been told adding LS3 conversion would be more around 100 more RWHP.

I currently have L99 with headers CAI long tubes and tune around 360 RWHP. I am having LS3 conversion along with whipple done soon and quoted over 600 when completed

As for the Ls3 it's different inards that I understood
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Old 08-22-2013, 02:47 PM   #34
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Quote:
Originally Posted by Jims Mongoose View Post
Thanks for the information.

I believe what you guys are telling me, but why? Why does the LS3 make more power?


Jim
Slightly higher compression
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Old 08-22-2013, 03:27 PM   #35
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Apx 10 degrees and .050" lift smaller camshaft on the L99 too.
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Old 08-22-2013, 04:00 PM   #36
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Thanks for the answers.

Quote:
Originally Posted by stanwilliams View Post
Apx 10 degrees and .050" lift smaller camshaft on the L99 too.
Thanks for the information, did not know that.

Now I don't want to derail the OP's basic thread, so I will shut up and listen.


Jim
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Old 08-22-2013, 04:52 PM   #37
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Originally Posted by Jims Mongoose View Post
Thanks for the information.

I believe what you guys are telling me, but why? Why does the LS3 make more power?


Jim
1st of all drivetrain loss. Autos eat up more power. Then l99s have smaller cams and I believe less compression.

That being said, autos rock with power adders.
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