help got a question

**Mudlitz** · 03-25-2011, 10:51 AM

i got a 98 ws6 with the ls1 in it this might be a dumb question but if i get a ls6 intake will i have to get bigger injectors or a fuel pump ???????

**ultra_badass** · 03-25-2011, 10:59 AM

nope

***SMWS6TA*** · 03-25-2011, 11:09 AM

Originally Posted by ultra_badass

nope

However there are some other things that I would recommend while you are doing the Intake that will save you time later.

LS6 Valley Tray Cover Mod, upgrade to 99-02 KS and WH and a Catch can if possible.

All but the Catch Can require removing the Intake off.

Also remove the egr and air pump too.

**godless-phoenix** · 03-25-2011, 11:13 AM

dont forget youll need a tune also after a ls6 swap

...especially if you ditch the egr and air pump

**Mudlitz** · 03-25-2011, 09:34 PM

Originally Posted by SMWS6TA

However there are some other things that I would recommend while you are doing the Intake that will save you time later.

LS6 Valley Tray Cover Mod, upgrade to 99-02 KS and WH and a Catch can if possible.

All but the Catch Can require removing the Intake off.

Also remove the egr and air pump too.

so i should also do ls6 valley tray cover mod what does that do and what is ks and wh? and what would the egr and air pump do dont i need those

**9T8W66** · 03-26-2011, 06:17 AM

The EGR is the tube that runs into the top of your intake right behind the throttle body. The standard LS6 intake does not have a provision for this. SLP sells an intake that is EGR friendly, but I would delete the EGR system all together when swapping intakes.

**Lunatikgixxer** · 03-26-2011, 06:53 AM

if your injectors are maxed out right now you WILL need bigger injectors.

**Mudlitz** · 03-26-2011, 08:49 AM

Originally Posted by 9T8W66

The EGR is the tube that runs into the top of your intake right behind the throttle body. The standard LS6 intake does not have a provision for this. SLP sells an intake that is EGR friendly, but I would delete the EGR system all together when swapping intakes.

so when i do my ls6 intake swap i should get the egr eliminator plug and the other guy said do a air pump eliminator?? and do i absolutly have to do a tune after taht??

**TLS_Addict** · 03-26-2011, 09:13 AM

Originally Posted by Lunatikgixxer

if your injectors are maxed out right now you WILL need bigger injectors.

I was under the impression that the 98 had 28 lb injectors just as the 01/02 cars that had the LS6 intake do, although they have different part numbers. I thought mid years like my 2000 had 26 lb injectors.

Anyone confirm?

**pajeff02** · 03-26-2011, 09:31 AM

Originally Posted by TLS_Addict

I was under the impression that the 98 had 28 lb injectors just as the 01/02 cars that had the LS6 intake do, although they have different part numbers. I thought mid years like my 2000 had 26 lb injectors.

Anyone confirm?

Sounds right to me.

**Lunatikgixxer** · 03-26-2011, 10:10 AM

Originally Posted by TLS_Addict

I was under the impression that the 98 had 28 lb injectors just as the 01/02 cars that had the LS6 intake do, although they have different part numbers. I thought mid years like my 2000 had 26 lb injectors.

Anyone confirm?

well then that explains why i would need injectors when i switch to the ls6 mani, i have a y2k!!!! =(

**Mudlitz** · 03-26-2011, 08:15 PM

i got a 98 ws6 and i want to put a ls6 intake on it. i was wondering if i need bigger injectors or a better fuel pump for that? Someone earlier said that i need ot get a tune right after that? also the guy said somthing about egr eliminator and air pump eliminator? what is all neccesary for doing a ls6 intake swap? please help me and answer my questions this is greatly apprieciated

**9T8W66** · 03-27-2011, 05:41 AM

Originally Posted by TLS_Addict

I was under the impression that the 98 had 28 lb injectors just as the 01/02 cars that had the LS6 intake do, although they have different part numbers. I thought mid years like my 2000 had 26 lb injectors.

Anyone confirm?

You are correct
`98 and 01-04 have 28# injectors although the later injectors are a newer better design.
`99-00 have 26#

Originally Posted by Mudlitz

so when i do my ls6 intake swap i should get the egr eliminator plug and the other guy said do a air pump eliminator?? and do i absolutly have to do a tune after taht??

When removing the EGR you have to cap the exhaust manifold port and the same goes for the AIR system aswell. And no you do not have to have a tune but if you don't disable those systems through the PCM you will have an SES light.

**TLS_Addict** · 03-27-2011, 08:18 AM

I got one right? Wholy crap man! It was s hot in the dark....................

**Mudlitz** · 03-27-2011, 08:33 AM

Originally Posted by 9T8W66

You are correct
`98 and 01-04 have 28# injectors although the later injectors are a newer better design.
`99-00 have 26#

When removing the EGR you have to cap the exhaust manifold port and the same goes for the AIR system aswell. And no you do not have to have a tune but if you don't disable those systems through the PCM you will have an SES light.

what about emissions will that mess with it and why cant i just swap the ls6 intake into the car with the new coolant pipe conversion

**Y2KPewterSS** · 03-27-2011, 12:04 PM

You don't need a tune, injectors or fuel pump for an LS6 intake swap. Its a bolt on, swap out.

**Y2KPewterSS** · 03-27-2011, 12:07 PM

Here is an article that will help you out:

http://ls1howto.com/index.php?article=5

***SMWS6TA*** · 03-27-2011, 12:19 PM

I'll try to explain it as I go with each post.

Originally Posted by Mudlitz

so i should also do ls6 valley tray cover mod what does that do and what is ks and wh? and what would the egr and air pump do dont i need those

Below you will see a LS1 Valley Cover Tray (VCT) with the coolant tube that connects the front and rear heads together. You can see it on this pic but there is no PCV tube like the LS6 VCT has. On a LS1 the PCV is vented out the rear of the drivers side valve cover. The tubing splits like a Y behind the intake, one goes to the rear passenger side valve cover and the other goes along the passenger side of the intake connects to the PCV then plugs into the intake just behind the throttle body (TB). What the LS6 VCT mod does is removes this crappy PCV system. The PCV is internal to the LS6 VCT and has an outlet tube as seen in pic 2 & 3. In the mod directions there is some work in that you will have to grind a 1/2" by 3/4" section off the block. It shows you how and what to do. The best thing I can say that you get out of this mod is that it eliminates the PCV vacuum issues and cleans up the engine nicely. It can be scary when you get to the grinding part of the mod. Just take your time.

Another reason I recommend the LS6 VCT mod is cost. PCV replacement hose at least $130. The LS6 VCT is $57. Other cost that could be included aree the 99< KS $37ea x 2 and WH $39. I got all with GMPartsdirect.com
Catch Can is different in that you do not need to do right away. You can run a hose straight from the VCT outlet to the intake and be find. But the Catch Can will help cut down ant blow by oil that the PCV lets by.

One more thing about the LS6 Intake is that you will need to get the bypass coolant lines or if you still want the LS1 coolant lines to work you will need to modify the bottom of the intake to accommodate the LS1 tubing. Pic 1 shows the LS1 coolant lines and Pic 2 shows the LS6 bypass with the rear block off plugs.

LS1 Valley Cover Tray

LS6 Valley Tray Cover

Another one (ignore the black circles)

Here is what it looks like after installed with LS6 Intake, VCT, & Catch Can.
LS6 Valley Cover Tray with Catch Can

KS = Knock Sensors
WH = Wire Harness.

GM has discontinued >98 KS & WH. You can still get some but 99 and up are better. If you do replace them with 99< you will need a new WH.

Originally Posted by 9T8W66

The EGR is the tube that runs into the top of your intake right behind the throttle body. The standard LS6 intake does not have a provision for this. SLP sells an intake that is EGR friendly, but I would delete the EGR system all together when swapping intakes.

Correct. If you delete the EGR and have stock exhaust manifolds you will need cap off plates. Not expensive.

Originally Posted by Mudlitz

so when i do my ls6 intake swap i should get the egr eliminator plug and the other guy said do a air pump eliminator?? and do i absolutly have to do a tune after taht??

You do not need a tune right away however to get full benefits you will need to. The tune will adjust the fuel/air tables on the high end side. Frost can tell you more. I'd wait to do a tune if you have plans to do long tube headers in your future.

Also I read in one of the above post that 99< had only 26lb injectors, this is incorrect. 99-00 were the only yrs to get 26 lb injectors. 98, 01-02 had 28 lb injectors.

If you want to know the differences between the yrs 98-02 read this thread:
http://www.ls1.com/forums/showthread.php?t=27512