New cams vs. advancing stock ones
Joined: Feb 2006
Posts: 13,068
Likes: 101
From: Southern Cali --> 818
Cams for NA... not sure about that.
But I will be going FI in the future, so I plan on getting cams for the VQ. I want to stay on the safe side, and getting cams seems like a safe idea for 450whp & 380TQ.
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But I will be going FI in the future, so I plan on getting cams for the VQ. I want to stay on the safe side, and getting cams seems like a safe idea for 450whp & 380TQ.
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Originally Posted by Jeff92se
I find it hard to believe that the LS2 can get 1/2 of 100hp to the wheels with just a cam swap. 30-40 hp tops.
Also, depending on what year you have, advancing the intake side is impossible because it already has VTC control. The exhaust might be possible but you will need an adj cam gear and alot of R&D to dial them in.
Also, depending on what year you have, advancing the intake side is impossible because it already has VTC control. The exhaust might be possible but you will need an adj cam gear and alot of R&D to dial them in.
It's VERY possible.
Originally Posted by G35_TX
My friends 99 LS1 Camaro had a Hammer Cam installed, stronger push rods, and port and polished heads. He puts 420 to the wheels down with those mods. His car stock dynoed 283. He also has a cutout on his exhaust, a Whisper lid, and MAF.
It's VERY possible.
It's VERY possible.
Not really on a VQ. Some math. 283HP stock/.85 (15% loss) = 332 crank HP or almost exactly the spec for a stock 5.7L LS1. 420HP post-mod/.85 = 494 crank HP or 86HP/Liter.
A bone stock revup at 298HP/3.5L = 85HP/Liter.
So now we see why adding cams in a N/A VQ is not really cost effective. The motor already has VERY good volumetric efficiency from the factory. A stock LS1 is not and has much more to gain from a cam swap. The VQ is in another league entirely. Especially the HR variant. And the 3.7 is going to be ridiculously so. That is about as advanced as N/A tech gets right now.
Originally Posted by Jeff92se
I agree. Direct injection is about the only thing left on the table that will get some real gains. Hopefully 15-20%
The HR already has the NDIS (Nissan Direct Injection System). That, coupled with the VVEL is what is going to make the 3.7 a killer. When they put that into a sedan is when I trade in my 03.5. I just cant like the look of the coupe. Gets more gay the more I look at it.
I know not on a VQ. I am responding to Jeff about the LS2.
Originally Posted by ballisticus
Not really on a VQ. Some math. 283HP stock/.85 (15% loss) = 332 crank HP or almost exactly the spec for a stock 5.7L LS1. 420HP post-mod/.85 = 494 crank HP or 86HP/Liter.
A bone stock revup at 298HP/3.5L = 85HP/Liter.
So now we see why adding cams in a N/A VQ is not really cost effective. The motor already has VERY good volumetric efficiency from the factory. A stock LS1 is not and has much more to gain from a cam swap. The VQ is in another league entirely. Especially the HR variant. And the 3.7 is going to be ridiculously so. That is about as advanced as N/A tech gets right now.
A bone stock revup at 298HP/3.5L = 85HP/Liter.
So now we see why adding cams in a N/A VQ is not really cost effective. The motor already has VERY good volumetric efficiency from the factory. A stock LS1 is not and has much more to gain from a cam swap. The VQ is in another league entirely. Especially the HR variant. And the 3.7 is going to be ridiculously so. That is about as advanced as N/A tech gets right now.
Thanks Russ but links and posts to confirm this already have been posted. But good info. I like the LS series more and more
Originally Posted by G35_TX
My friends 99 LS1 Camaro had a Hammer Cam installed, stronger push rods, and port and polished heads. He puts 420 to the wheels down with those mods. His car stock dynoed 283. He also has a cutout on his exhaust, a Whisper lid, and MAF.
It's VERY possible.
It's VERY possible.
Joined: Feb 2006
Posts: 13,068
Likes: 101
From: Southern Cali --> 818
Originally Posted by b00stedjustin
why are we talking about slowmarro and vette motors again? gay!!! 
Is it because they walk you everytime?
Maybe a little too JDM-fanatic? They are talking about them because it pertains to the subject: How cams work.
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Originally Posted by Jeff92se
How do you adv/retard the VTC cams? I'm not sure which of the aftermarket ecus can do this. And how does one adj the fixed exhaust cam? Adj cam gear? They available?
Easy, sell your Autoenginuity and use money to buy Cipher
Check out UpRev site, +/- 2 degrees
Thread Starter
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Registered User
Joined: May 2007
Posts: 264
Likes: 0
Originally Posted by dovla
Stock ECU!
Easy, sell your Autoenginuity and use money to buy Cipher
Check out UpRev site, +/- 2 degrees
Easy, sell your Autoenginuity and use money to buy Cipher
Check out UpRev site, +/- 2 degrees
Good thread, I'm glad it took off. I'm in love with the LS2, is it just a rumor that someone was swapping one into a G?
I'm curious also. 
Originally Posted by skaterbasist
What's with you and anti-american car statements?
Is it because they walk you everytime?
Maybe a little too JDM-fanatic? They are talking about them because it pertains to the subject: How cams work.
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Is it because they walk you everytime?
Maybe a little too JDM-fanatic? They are talking about them because it pertains to the subject: How cams work.
.