why would an ls6.....

[clg82]

Why would an ls6 intake add so much horsepower over a stock ls1? I am a little confused as to why a 2002 ls6 intake from a camaro ss makes more then a stock 2000 trans am ls1 intake. Any ideas?

[basballny2]

Why would an ls6 intake add so much horsepower over a stock ls1? I am a little confused as to why a 2002 ls6 intake from a camaro ss makes more then a stock 2000 trans am ls1 intake. Any ideas?

its not soo much more hp over stock....i believe its only around 5-10.....and the 2001 - 2002 ls1's got the ls6 intake

[9T8W66]

When installed on a `98-`00 car the LS6 intake show a pretty good gain 10-15 HP because of the more aggresive cam. The difference between a `98-00 LS1 and a `01+ LS1 was 5 HP as rated by GM due to the smaller 6.0 Truck cam used in those later years. Generally al `97-`04 LS1's in stock form make about the same power roughly 345-350 FWHP.

[Vertiviper]

When installed on a `98-`00 car the LS6 intake show a pretty good gain 10-15 HP because of the more aggresive cam. The difference between a `98-00 LS1 and a `01+ LS1 was 5 HP as rated by GM due to the smaller 6.0 Truck cam used in those later years. Generally al `97-`04 LS1's in stock form make about the same power roughly 345-350 FWHP.

Thats interesting I never heard of the more agressive stock cam being in the 98-00's...Is there a write up on this somwhere?

[9T8W66]

Thats interesting I never heard of the more agressive stock cam being in the 98-00's...Is there a write up on this somwhere?

Actually their have been 4 different factory cams in LS1's throughout the years.
Heres the specs and what models they were installed in,
1997-`99 Corvette
199/207 472/479 117 LSA
`00 Corvette
198/209 500/500 115.5 LSA
`98-`00 F-Body
198/209 500/500 119.5 LSA
`01-`04 LS1 All Cars
196/207 467/479 116 LSA

[clg82]

Actually their have been 4 different factory cams in LS1's throughout the years.
Heres the specs and what models they were installed in,
1997-`99 Corvette
199/207 472/479 117 LSA
`00 Corvette
198/209 500/500 115.5 LSA
`98-`00 F-Body
198/209 500/500 119.5 LSA
`01-`04 LS1 All Cars
196/207 467/479 116 LSA

looking at those numbers is it safe to say that the 98-00 had the better cam?

[Wesman]

looking at those numbers is it safe to say that the 98-00 had the better cam?

Yep, exactly.

So when you pair the LS6 intake manifold with the better cam, you have a car that makes more power than both the 98-00's and 01-04's.

[clg82]

Yep, exactly.

So when you pair the LS6 intake manifold with the better cam, you have a car that makes more power than both the 98-00's and 01-04's.

awesome thanks for the help, one more thing i heard that you needed to change the coolant lines when switching to the ls6 intake is this true?

[Wesman]

awesome thanks for the help, one more thing i heard that you needed to change the coolant lines when switching to the ls6 intake is this true?

Depends...you can do it in one of two ways.

You can change the coolant lines to the newer style, which means no lines running longitudinally under the manifold. However, its been said that the newer style doesn't cool as well, and cylinder temps in number 7 and 8 cylinders are higher.

The other way is to shave the bottom of the manifold with a dremel or other power tool. On the bottom of the manifold it is crosshatched, basically just plastic webbing thats on their when they mold/manufacture it. If you sand all the plastic webbing down to the actual bottom of the manifold, it will install no problem, and clear the coolant lines. You can either cut off all the webbing, as I did, or just cut a path for the coolant lines to rest in. I think this is the best method out of the two.

[clg82]

Depends...you can do it in one of two ways.

You can change the coolant lines to the newer style, which means no lines running longitudinally under the manifold. However, its been said that the newer style doesn't cool as well, and cylinder temps in number 7 and 8 cylinders are higher.

The other way is to shave the bottom of the manifold with a dremel or other power tool. On the bottom of the manifold it is crosshatched, basically just plastic webbing thats on their when they mold/manufacture it. If you sand all the plastic webbing down to the actual bottom of the manifold, it will install no problem, and clear the coolant lines. You can either cut off all the webbing, as I did, or just cut a path for the coolant lines to rest in. I think this is the best method out of the two.

to be honest i am probably going to change to the new style....would it hurt anything

[jrgswhitels1]

Both intakes are definitely different! There is more power to be had with the LS6 intake than the LS1 intake. Base is much more flat and runners slightly shorter! Couple that with the more aggressive camshaft '98-00 had, they will out run the 2001/02!

[clg82]

Both intakes are definitely different! There is more power to be had with the LS6 intake than the LS1 intake. Base is much more flat and runners slightly shorter! Couple that with the more aggressive camshaft '98-00 had, they will out run the 2001/02!

would changing the coolant setup hurt anything?

[jrgswhitels1]

Just bolt the intake on dude!! Dont worry about the lines, they'll be all right! Just remember to torque down the bolts in proper sequence. You dont want a vacuum leak!

[clg82]

Just bolt the intake on dude!! Dont worry about the lines, they'll be all right! Just remember to torque down the bolts in proper sequence. You dont want a vacuum leak!

they'll really be ok, then why do some people say to redo the coolant lines?

[Wesman]

they'll really be ok, then why do some people say to redo the coolant lines?

Because you don't want them getting squashed between the valley cover and the bottom of the intake manifold...

I've never heard of anyone not switching lines or grinding the bottom of the intake slightly, I don't see how you could do it otherwise.

[clg82]

Because you don't want them getting squashed between the valley cover and the bottom of the intake manifold...

I've never heard of anyone not switching lines or grinding the bottom of the intake slightly, I don't see how you could do it otherwise.

good thinkin do you have any idea where a good place to get the new coolant conversion is?

[Wesman]

good thinkin do you have any idea where a good place to get the new coolant conversion is?

Almost all of the sponsor sites that sell aftermarket intake manifolds will have the conversion kit for sale.

[clg82]

Almost all of the sponsor sites that sell aftermarket intake manifolds will have the conversion kit for sale.

got a link

[Wesman]

got a link

http://rpmspeed.com/product_info.php...89aa733cafd896

[sunsetorangess]

The ls6 intake has more volume, flows better, and doesnt require an egr due to an improved camshaft/controller combination.
The 2001's and 02's with the ls6 intake also came with the ls6 injectors. As far as grinding down the intake, some were doing it because of the vent lents that lie beneath and it was causing Number 7 cylinder to detonate and run hotter than the rest.
J