issues with stage 2 intake so i am putting an ls6 intake and headers on
12-03-2009, 12:45 PM
#1
issues with stage 2 intake so i am putting an ls6 intake and headers on So i want to start off by thanking everyone who worked on the intake swap and headers. I am going to go ahead and get the headers, and do an intake swap to the ls6 intake and tb.
I am having an issue with my stage 2 intake, the gaskets are folding in and causing the car to have a vacuum leak. So i decided i am doing a ls6 intake with a mild port and a ported ls6 tb.
The shop thats doing the work is going to look and use these two posts for referance. Keep in mind i already have a ls6 cam and dod disabled as well as stage 2 heads.
http://www.grandprixforums.net/f20/s...dod-24080.html
https://ls1tech.com/forums/ls4-front...s2-intake.html
Is there anything else i should tell them? anything that i need to know other than whats in those two guides.
If all this goes well i should see some crazy gains. Also does anyone feel that i shouldnt use a ported ls6 intake?
I am having an issue with my stage 2 intake, the gaskets are folding in and causing the car to have a vacuum leak. So i decided i am doing a ls6 intake with a mild port and a ported ls6 tb.
The shop thats doing the work is going to look and use these two posts for referance. Keep in mind i already have a ls6 cam and dod disabled as well as stage 2 heads.
http://www.grandprixforums.net/f20/s...dod-24080.html
https://ls1tech.com/forums/ls4-front...s2-intake.html
Is there anything else i should tell them? anything that i need to know other than whats in those two guides.
If all this goes well i should see some crazy gains. Also does anyone feel that i shouldnt use a ported ls6 intake?
12-03-2009, 12:52 PM
#2
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Of course I'm the first one to post on this subject............
good luck with it. Your car is going to be a monster.
It will be interesting to see how they adapt the LS6 TB.
good luck with it. Your car is going to be a monster.
It will be interesting to see how they adapt the LS6 TB.
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12-03-2009, 07:48 PM
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I am already sending it back to faster proms so that is that.
12-03-2009, 11:29 PM
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yeah that ported stock intake is a waste of money. I believe the saying is "perfume on a pig". Take a look at the TB entry, the cross sectional area is enough to choke a donkey.
12-04-2009, 10:40 AM
#16
I disagree. I gained two to three tenths in the quarter mile with the stage 1 ported intake. Now changing to an LS6 or LS2 manifold will definitely be better although a little more work, but we really didn't have anyone back then that had officially done an LS6 intake.
12-04-2009, 11:17 AM
#17
Launching!
I just threw on a stage 2 intake and it definitely feels stronger. No dyno #s to prove but in comparison I never felt any gains with the FWI or Magnaflow or Hogan downpipe I put on. No tune yet either, that will come after the headers.
12-04-2009, 11:32 AM
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The biggest issue will be the fuel rail. The LS6 fuel rail is taller and won't clear the alternator bracket, and the LS4 fuel rail won't clear the LS6 intake without "massaging". This also means that the LS4 and LS6 stock injectors are different sizes. Something will need to be modified, it just depends on what you want to do. If you do find an off-the-shelf fuel rail that will work, then the LS6 Intake Swap Kit thread could really gain some traction.
Here's my take on the the intake: the LS6 intake will support 450HP before it becomes a restriction. I'm not saying that you can't make more power, just that you would start holding back the potential of your other parts. Just a guess, but the LS4 intake becomes a restriction at <=303HP. You can make more than 303HP (obviously), but the intake will prevent you from seeing the true benefits of your cam and other parts. I really think that the LS4 intake was purposely low flowing to help keep the transmission alive by restricting power, and the heads were healthy 243 castings for fuel economy and emissions reasons. Just my opinion. JDMC5 helped me dial in my MAF sensor last night, and the car is feeling really good right now.
Here's my take on the the intake: the LS6 intake will support 450HP before it becomes a restriction. I'm not saying that you can't make more power, just that you would start holding back the potential of your other parts. Just a guess, but the LS4 intake becomes a restriction at <=303HP. You can make more than 303HP (obviously), but the intake will prevent you from seeing the true benefits of your cam and other parts. I really think that the LS4 intake was purposely low flowing to help keep the transmission alive by restricting power, and the heads were healthy 243 castings for fuel economy and emissions reasons. Just my opinion. JDMC5 helped me dial in my MAF sensor last night, and the car is feeling really good right now.
12-04-2009, 11:33 AM
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12-04-2009, 11:53 AM
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I disagree. I gained two to three tenths in the quarter mile with the stage 1 ported intake. Now changing to an LS6 or LS2 manifold will definitely be better although a little more work, but we really didn't have anyone back then that had officially done an LS6 intake.