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converting ls1 to ls6 air intake

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Old Jul 18, 2008 | 02:44 PM
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Default converting ls1 to ls6 air intake

what do you need to do to make the upgrade ?
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Old Jul 18, 2008 | 03:20 PM
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Old Jul 18, 2008 | 04:09 PM
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What year is you car? Do a search, there are a few how-tos with pics. I remember that th earlier cars have to swap to the newer style coolant tubes and grind some metal out.
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Old Jul 18, 2008 | 05:24 PM
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http://www.ls1howto.com/index.php?article=5

Although most people do, I didn't swap the coolant pipes out when I did mine. I turned it over and, using a small grinder, I shaved off the "crosshatch" on the bottom of the intake to make room for the coolant tubes. It's been like that for over a year.

Even though it is commonly called an LS6 intake, it is really a 2001 and up intake. The Z06 came out the same year, but all 2001 and up Corvettes had the same intake, Z06 or not.

Last edited by 'VETTE PHASE; Jul 18, 2008 at 05:27 PM.
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Old Jul 18, 2008 | 05:27 PM
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Hi Kamil -

Are you talking about and intake manifold or an air cleaner assembly?

If you are asking about an air cleaner assembly, all you have to do is replace the air cleaner cover as that was the only difference - and the 02-04 were the least restrictive.

best regards-

mqqn
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Old Jul 18, 2008 | 07:28 PM
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I'm talking abut the intake manifold. Are zo6 fuel injectors beather then stock ls1. From 97 c5
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Old Jul 18, 2008 | 09:20 PM
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Originally Posted by Kamil D.
I'm talking abut the intake manifold. Are zo6 fuel injectors beather then stock ls1. From 97 c5

YES but,,,,,to take full advantage of the increased flow rate of the Z injectors, you will need better heads a better cam etc...... Then you will need to use tuning software to tune the PCM for the bigger injectors or you will have driveability issue.
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Old Jul 18, 2008 | 11:13 PM
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what if I just put them in in a ls1 engine with ls6 air intake. Is that ok I want to add 100shot of nos so I want to make sure that they give me all the feul i need becuse its gone be a dry shot
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Old Jul 18, 2008 | 11:24 PM
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Originally Posted by Kamil D.
what if I just put them in in a ls1 engine with ls6 air intake. Is that ok I want to add 100shot of nos so I want to make sure that they give me all the feul i need becuse its gone be a dry shot
NO! You need to scale the PCM injector table to the correct injector ratio table for the engine to run correctly. Im not a tuner but I know that part is critical!
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Old Jul 19, 2008 | 12:59 AM
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All C5s have the same size injectors, Z or not, except for the 99 and 00.
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Old Jul 19, 2008 | 09:14 AM
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Originally Posted by 2000C-5
All C5s have the same size injectors, Z or not, except for the 99 and 00.


The injectors in the Z06 are the same 28 pound injectors that are in your 97 c5, not an upgrade.
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Old Jul 19, 2008 | 12:00 PM
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how much HP can stock injectors handole. Will they handole 100-150 shot of nos ? I have 92xxx miles on my injectors shoud I put in the others with only 10k miles on them? I also have the feul rairel from zo6 its diferent then my 97 right is there a point to swich them or just swich the injectors ?
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Old Jul 19, 2008 | 01:09 PM
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Your 97- 98 fuel rail is different than the later fuel rails. Your fuel pressure regulator is combined with your rail so you have TWO lines on your rail. Fuel supply and a return line. The newer rails only have ONE supply line.

BC
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Old Jul 19, 2008 | 01:19 PM
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Originally Posted by Bill Curlee
Your 97- 98 fuel rail is different than the later fuel rails. Your fuel pressure regulator is combined with your rail so you have TWO lines on your rail. Fuel supply and a return line. The newer rails only have ONE supply line.

BC
So just switch the intake manifold to the new one and the injectors. And use the old feul rails. Corect ? I also gone need some parts to change the cooling lines ? Any other parts ? Gaskets ? Or any thing ? Do I need to tune it after the install. And what HP gaines I'm looking at ?

Thank you all for help
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Old Jul 19, 2008 | 04:00 PM
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Old Jul 19, 2008 | 06:27 PM
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Just swap the intake, use your rail and injectors.
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Old Jul 19, 2008 | 07:44 PM
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And swap the coolant pipes for the newer style crossover pipes (front and/or back) and plugs (back).

Or grind the bottom of the intake so it fits over the current coolant pipe. This might be the best idea if you are going to use NOS. This MAY keep #7 and #8 slightly cooler and less likely to go


The most noticable gain will be throttle response. But 5-10 HP as well.
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Old Jul 19, 2008 | 08:06 PM
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Originally Posted by Kamil D.
And what HP gaines I'm looking at ?
If you look at the bottom of the page of the "How To" I linked you, the OP posted his dyno sheet. He had done several other mods prior to the intake change, so don't expect the same gains as him, but it gives you an idea of how much better it flows than the 97-00 intake.





The very next day after the install I took the car to the dyno. The results were astounding! I gained a peak of 24rwhp, 14ftlbs of torque. The dyno graph the results.


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Old Jul 20, 2008 | 12:20 AM
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Originally Posted by euro@EFIAlchemy.com
Just swap the intake, use your rail and injectors.
Should I switch the injectors because I have so much more miles on them then the one I just got? Even if they are the same ones how many miles can you have on a injector before they are not operating correctly? And do they just faille or slowly stop working how do you now when its time to switch?
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Old Jul 20, 2008 | 12:23 AM
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Originally Posted by jedblanks
And swap the coolant pipes for the newer style crossover pipes (front and/or back) and plugs (back).

Or grind the bottom of the intake so it fits over the current coolant pipe. This might be the best idea if you are going to use NOS. This MAY keep #7 and #8 slightly cooler and less likely to go


The most noticable gain will be throttle response. But 5-10 HP as well.


Is there any specific way of doing it (cutting in to the intake)? What kind of tool do you need do you have any pictures or a post?


Also is it beater to cut in to the intake or buy new parts, beater as in cooler engine and beater for the engine ?
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