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

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Old 04-26-2014, 09:57 PM   #1
Lethal Racing

 
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New LETHAL RACING NIGHT FURY VVT Camshaft Phase IV = Huge Gains!!!

We have been working on several new setups with our line of VVT Camshafts.

This latest build is one of our Phase IV Setups using our Night Fury Cam designed on VVT Lobes. Adding this cam along with our Hand Ported LS3 Cylinder Heads gave us gains of 117rwhp at peak and over 140+rwhp to redline.

Mods include :
Lethal Night Fury VVT
Lethal Hand Ported Cylinder Heads
1 7/8 Headers
Cold Air Intake
Vig 3200 Stall

Hope you enjoy the video and the as usual awesome idle of the NF Cam!!!

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Old 04-26-2014, 09:59 PM   #2
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Glad to see some more positive vvt numbers!
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Old 04-26-2014, 10:07 PM   #3
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Like I said in the other post I have never seen one still having good power past 7000rpm. Amazing job. Looks like 490rwhp+ for about 1700 rpms.
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Old 04-26-2014, 10:31 PM   #4
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Sounds good with good numbers Shawn! Was thinking the conversion,but this sounds like a better option! Prolly a little cheaper too!
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Old 04-26-2014, 11:17 PM   #5
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Awesome work as usual guys!! TOP NOTCH!!!
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Old 04-26-2014, 11:32 PM   #6
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Nice
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Old 04-27-2014, 12:09 AM   #7
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What valve springs do you spec for the vvt cam?
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Old 04-27-2014, 01:12 AM   #8
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Like to see how it does at the track!!
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Old 04-27-2014, 02:51 PM   #9
Lethal Racing

 
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Quote:
Originally Posted by Irnwkrkev View Post
What valve springs do you spec for the vvt cam?
This particular setup is using our Manley 660 spring package with Ti retainers.
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Old 04-27-2014, 04:54 PM   #10
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Nice Night Fury in a VVT.. Something for everyone and great results.. Car should be fun to drive… Enjoy the new power.
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Old 04-27-2014, 05:43 PM   #11
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For the most power under the curve it looks like he should be shifting around 7300rpm. I think most people cut off the dyno pull around 6500rpm. I wonder what the average power would be between 5300 rpm and 7300 rpm?
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Old 04-27-2014, 06:08 PM   #12
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I didn't cut it off at 6500.

Here is a Power Gain Chart
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Old 04-27-2014, 07:01 PM   #13
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I took the rpm horsepower numbers on 100's starting at 5300 and ending at 7200 for a total of 20 numbers. The data did not carry that far but looking at the dyno chart it is very easy to interpet the last few numbers. At 7200 I gave it 480rwhp.

So I came up with an average of 492.75RWHP over a 1900 rpm range. You guys can tell I am impressed by how long this motor hung on.
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Old 04-27-2014, 08:18 PM   #14
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Impressive!!!
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Old 04-27-2014, 08:27 PM   #15
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Damm badass
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Old 04-27-2014, 09:46 PM   #16
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What is the general price range for a VVT cam like this installed and the car tuned so I can start saving?
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Old 04-28-2014, 07:17 AM   #17
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Are those values for combined runner length? 10" for the shortest seems quite long.

Wonder if this explains the dip always present at around 3,000rpm.
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Old 04-28-2014, 08:30 AM   #18
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That is one bad azz cam!.. went out the other night with a buddy and a GTR with at least a exhaust mod of some type was just cruising slowly waiting for someone like us to come along..

So the GTR got the jump, we redlined 2nd, and my ass weights 300! Dam if we didn't start pulling on him and just about to over take him when we ran outta room!

He's got a 1Le ss, CAI, Phat Headers, and the NF cam! I have no doubt that on a 30 mph roll or more it's every bit as fast.. off the line the gear box and allwheel drive no way unless you had a few miles or so to make it up, lol.

I just want to know if there is a blower cam available with a little smoother idle for me!
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Old 04-28-2014, 08:40 AM   #19
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Hmmm....


www.h-towncamaroclub.com
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Old 04-28-2014, 11:56 AM   #20
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Quote:
Originally Posted by Irnwkrkev View Post
Are those values for combined runner length? 10" for the shortest seems quite long.

Wonder if this explains the dip always present at around 3,000rpm.

Yes, the total runner length always includes the head. That would be from the back of the intake valve to the runner exit into the plenum. This measurement would be along the centerline of the runner. Not sure on the dip at 3000 rpm as that would be to low for the power dip change from the 4th to the 3rd harmonic. There is a 5th harmonic wave but it is weaker yet. The 2nd being the strongest.

Another thing to consider is the exhaust. There are waves pulses in the exhaust. Some people use those to cover up the change over for ones in the intake. In other words to make them overlap so there are no dips in power or make them minor dips.
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Old 04-28-2014, 02:52 PM   #21
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Quote:
Originally Posted by Irnwkrkev View Post
Are those values for combined runner length? 10" for the shortest seems quite long.

Wonder if this explains the dip always present at around 3,000rpm.
If memory serves correct the LS3 runner length CL is about 10.25 inches which is about 2 inches shorter than the FAST. This is just intake manifold runner length. Adding the head runner length will only add to the 10 or so inches it already is. Take a string and run it along the roof of the port and measure the length of the string, do the same with the floor and average the two. There is your runner length.
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Old 04-30-2014, 12:56 AM   #22
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I did not see this cam on the website. Can you pm me with pricing?
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Old 04-30-2014, 04:13 AM   #23
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What's the total price on this set up, pm me if possible.
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Old 04-30-2014, 05:04 PM   #24
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It's new according to Shawn so it may not be on the site yet. That is my car in the video and it runs great.
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Old 04-30-2014, 05:50 PM   #25
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Looks nice, but I have a question and don't take it the wrong way. Do you guys ever track test these cams? I see the make good numbers on paper just wondering if you are going to test them I'm use to people track test cams before they are available for the public.
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