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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 04-26-2013, 02:33 PM   #1
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Whats it take to get 500 rwhp in a L99

Seen a few threads about 500 HP in a M6 , but what's it take to hit that mark in a L99. I'm sitting at 461 rwhp. With a relatively small cam compared to the NF and have a SDPC port/CNC job, UDP, ported Im and tb and 1 7/8 header. Just curiosity got the best of me.
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Old 04-26-2013, 03:10 PM   #2
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More Compression, more cam, IMHO I'd go with a FAST 102 and 102 tb if you can't swing the TB don't bother. Those SDPC heads should be up to the task to get you there.

I say a specd cam from a valve train expert like Ed Curtis or Brian Tooley bud.
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Old 04-26-2013, 03:25 PM   #3
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I called the shop earlier. Gonna go for 11.5 compression and a custom grind big cam.
I guess I could sale my ported intake and ported tb.
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Old 04-26-2013, 04:08 PM   #4
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More Compression, more cam, IMHO I'd go with a FAST 102 and 102 tb if you can't swing the TB don't bother. Those SDPC heads should be up to the task to get you there.

I say a specd cam from a valve train expert like Ed Curtis or Brian Tooley bud.
I think it will take more than that unless its a pure race cam. I think it will take the above mods plus a converter that can be locked up on the dyno or more displacement or a blower.
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Old 04-26-2013, 04:11 PM   #5
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I'd like an answer to this as well...

Think Rhino is above that? Anyone else? Anyone with VVT delete that did it?
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Old 04-26-2013, 04:15 PM   #6
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Got the stall covered.

40 more HP over what I have can't be to hard. Lol. I take it this hadn't been accomplished or rare to accomplish.
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Old 04-26-2013, 04:20 PM   #7
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Got the stall covered.

40 more HP over what I have can't be to hard. Lol. I take it this hadn't been accomplished or rare to accomplish.
no its been done.

Lethal is doing a friend of mines L99 right now and they are sure it's going to be over 500 for sure.
he went radical though..
but still NA and plans on staying NA except maybe some NOS later.
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Old 04-26-2013, 04:33 PM   #8
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500 on a dynojet is like what on a mustang dyno? Lol
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Old 04-26-2013, 04:35 PM   #9
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~450/460 on a dyno jet.
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Old 04-26-2013, 04:39 PM   #10
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So in that case I'm only 30hp away stage 3 heads will get me there!
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Old 04-26-2013, 04:45 PM   #11
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Old 04-26-2013, 04:48 PM   #12
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So in that case I'm only 30hp away stage 3 heads will get me there!
So you did VVT delete and you are at 470? Nice. Are your heads milled now? Do you have an UDP?
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Old 04-26-2013, 04:55 PM   #13
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So you did VVT delete and you are at 470? Nice. Are your heads milled now? Do you have an UDP?
I had mine done at a mustang dyno and only hit 420 a guy with the same setup as me (except stage 2 heads,a 229/236 cam, and cat less) hit 408 and stated that he had hit 464 at phasteks dyno jet. So my guess would be at a dyno jet to be 470+. And no milling yet just basic stage 1 p&p and no UDP as well.
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Old 04-26-2013, 05:36 PM   #14
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I had mine done at a mustang dyno and only hit 420 a guy with the same setup as me (except stage 2 heads,a 229/236 cam, and cat less) hit 408 and stated that he had hit 464 at phasteks dyno jet. So my guess would be at a dyno jet to be 470+. And no milling yet just basic stage 1 p&p and no UDP as well.
If you are at 470 you could mill and UDP and probably be right at 500 without doing anything else...that's awesome.
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Old 04-26-2013, 05:38 PM   #15
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Where are all the timeslips from these people with night fury cams? Would love to know how it performs at the track.
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Old 04-26-2013, 05:57 PM   #16
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Where are all the timeslips from these people with night fury cams? Would love to know how it performs at the track.
You will see mine tonight just follow my build thread bud I'll be posting everything there!
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Old 04-26-2013, 06:03 PM   #17
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You will see mine tonight just follow my build thread bud I'll be posting everything there!
Good luck.
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Old 04-26-2013, 06:09 PM   #18
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You will see mine tonight just follow my build thread bud I'll be posting everything there!
Sweet. What are you hoping to run?
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Old 04-26-2013, 06:43 PM   #19
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We just did one with 520 something and the clutch started slipping.....
L99 A6 not LS3 M6.
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Old 04-26-2013, 06:48 PM   #20
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Seen a few threads about 500 HP in a M6 , but what's it take to hit that mark in a L99. I'm sitting at 461 rwhp. With a relatively small cam compared to the NF and have a SDPC port/CNC job, UDP, ported Im and tb and 1 7/8 header. Just curiosity got the best of me.
Going to be hard to see 500+ out of a L99 naturally aspirated, do not think anyone has hit this yet.


While I was up at ECS we did one that hit 488rwhp on the dynapack. Car ran 11.3x's full weight, no drag pack. I forgot his forum name off hand, but great guy we had some good times at the track! This was built/tuned by ECS; TSP 229 cam, ARH LTs 1 7/8, TSP Stage 2 CNC ported stock LS3 heads, FAST 102.
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Old 04-26-2013, 07:06 PM   #21
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We just did one with 520 something and the clutch started slipping.....

my clutch slipped at 468 on a mustang dyno. thats 500/510 on a dynojet
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Old 04-26-2013, 07:12 PM   #22
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"Going to be hard to see 500+ out of a L99 naturally aspirated, do not think anyone has hit this yet."

One other thing that is hardly mentioned is the A6 transmission is 1.15:1 in 4th gear instead of being 1:1. You will lose a couple of ponies right there on the dyno when you need to find every last hp in trying to get to 500rwhp mark.
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Old 04-26-2013, 07:14 PM   #23
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Old 04-26-2013, 07:18 PM   #24
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I know how to do it really quick and easy...drop in an LS7...Bingo! You probably wouldn't spend a lot more money than modding if you could find a good used Z06 engine complete with wiring. Check it out.
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Old 04-26-2013, 07:20 PM   #25
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its not hard or impossible n.a . big cam headwork bolt ons (the basic and more advanced like intake mani etc) and a tune. with stock torque converter you wont like driving it nor would your tuner like tuning it.

the numbers game is always confused me...id rather the car drive right and be purpose built like mine for road courses and daily driving and my measly 450 wih stock stall and stock driveability. numbers are for pissing contests.
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