General Motors V8 Discussion Discussion relating to getting the most out of your LSx or other GM-based V8 Miata's engine

Started my LS swap, have engine questions.

Old Mar 5, 2017 | 04:35 PM
  #1  
BGordon's Avatar
Thread Starter
V8 Miata Enthusiast
 
Joined: Apr 2016
Posts: 412
Likes: 30
From: Tulsa OK
Default Started my LS swap, have engine questions.

I thought I had this LS swap thing well researched before starting but only 2 days in and I have a couple of engine questions. Never gave it much thought but all of the threads seem to have engines that are already cleaned up and ready to be installed. If somebody has a link to a thread that details what to do with all the engine exterior connections and hoses, please let me know which one it is.

The first picture is where I am pointing at a hole in the front of the intake. I believe it is for some sort of exhaust gas re-routing or intake air warmup since the tube that was in it connects to the exhaust manifold. What is this and can I just block it off with a plate? If not, what do I do?

The second picture is the right side of the engine and I am pointing at something attached to the fuel rail. It appears to have some sort of vacuum hose that connects to the intake manifold. What is it and can I get rid of it?

The third picture is the front of the engine just below the inlet opening and is some sort of hose that appears to be a vacuum line. Can I just cap it off or does it need to run to something?
Attached Thumbnails Started my LS swap, have engine questions.-ls-engine-3.jpg   Started my LS swap, have engine questions.-ls-engine-1.jpg   Started my LS swap, have engine questions.-ls-engine-2.jpg  
Reply
Old Mar 5, 2017 | 05:34 PM
  #2  
Flavaquero's Avatar
V8 Miata Follower
 
Joined: Nov 2013
Posts: 148
Likes: 6
From: Dade City, FL
Default

the small line may be the cooling system vent line. It goes to the radiator. What is the engine out of?
Reply
Old Mar 5, 2017 | 06:24 PM
  #3  
BGordon's Avatar
Thread Starter
V8 Miata Enthusiast
 
Joined: Apr 2016
Posts: 412
Likes: 30
From: Tulsa OK
Default

2000 z28.
The third line has a PCV valve on the other end, which is what makes me think I can remove it. There is already a PCV valve hooked to the valve cover which vents to the intake at a different location.
Reply
Old Mar 5, 2017 | 07:53 PM
  #4  
acedeuce802's Avatar
V8 Miata Follower
 
Joined: Mar 2016
Posts: 156
Likes: 18
From: Farmington Hills, MI
Default

1. EGR can be plugged. Search for "LS1 EGR delete" for more info. I believe the stock ECU is fine with it being blocked off, but you'll see power benefits by getting a tune after this is blocked off.

2. Probably the EVAP purge solenoid. I don't know too much about these, but I got rid of it and just followed all the instructions out there for fuel stuff. I ran a line directly from the Corvette fuel regulator to the fuel rail. The venting and charcoal canister will be taken care of at the tank, rather than through a solenoid at the fuel rail.

3. If that line runs to the valley cover, there is a PCV breather box inside of the crank case. Look up pictures of an "LS6 valley cover" to confirm that this is the correct hose you're looking at. If so, keep it, this is one of the benefits to an LS6 over an LS1. Look up "LS6 PCV diagram" to see how to run vacuum lines for this system. However, I don't think the LS6 valley cover came on the Camaro until 2001, so that may not be it. If this line does not run to the valley cover, it probably runs to the coolant crossover. In that case, it would get plumbed to a bung on top of the radiator.

All of these answers pertain to a vehicle that does not have inspections at all.
Reply
Old Mar 8, 2017 | 03:51 AM
  #5  
fitz's Avatar
V8 Miata Fan
 
Joined: Aug 2011
Posts: 48
Likes: 3
Default

The complete service manual for the 2000 Camaro can be found here. It's an invaluable reference that will answer all of your questions, now and in the future.

http://www.mediafire.com/file/21djvr...bookmarked.pdf

I would not attempt this swap without it.
Reply
Old Mar 8, 2017 | 08:06 AM
  #6  
BGordon's Avatar
Thread Starter
V8 Miata Enthusiast
 
Joined: Apr 2016
Posts: 412
Likes: 30
From: Tulsa OK
Default

Very much appreciate the link.
I bought a Chiltons that covers a range of Camaro years but is very lacking for the specific information I am after.

I just love the internet and the people that help out with all these resources.

Any idea where the manual specific to the 2000 Miata is located?
Reply
Old Mar 8, 2017 | 10:23 AM
  #7  
fitz's Avatar
V8 Miata Fan
 
Joined: Aug 2011
Posts: 48
Likes: 3
Default

Google works pretty well for finding this stuff!

On line versions are free:

http://www.mellens.net/mazda/
Reply
Old Mar 8, 2017 | 10:50 AM
  #8  
BGordon's Avatar
Thread Starter
V8 Miata Enthusiast
 
Joined: Apr 2016
Posts: 412
Likes: 30
From: Tulsa OK
Default

Sorry, I am not internet savvy.
About my only internet stuff is playing games on my tablet and surfing this website and the Miata forum.
Probably should have asked the grandkid for some help on internet stuff.
Thanks for the help Fitz
Reply
Old Mar 8, 2017 | 01:07 PM
  #9  
fitz's Avatar
V8 Miata Fan
 
Joined: Aug 2011
Posts: 48
Likes: 3
Default

Originally Posted by BGordon
Sorry, I am not internet savvy.
About my only internet stuff is playing games on my tablet and surfing this website and the Miata forum.
Probably should have asked the grandkid for some help on internet stuff.
Thanks for the help Fitz
I wasn'rt criticizing or poking fun at you. There are literally thousands of things you can learn on the net about where to go for information on how to do things and also, what not to do. The only other way I know to find out what not to do is make an expensive mistake and have to fix it!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jerryg
General Motors V8 Discussion
11
Mar 13, 2017 09:31 AM
Cody5
Introductions
4
Jan 7, 2015 04:26 PM
Nowak1981
V8 Miata Wiring, Electrical, and ECUs
3
Apr 29, 2014 08:36 PM
Robperry12
Ford V8 Discussion
23
Jan 12, 2012 08:24 PM
corndogs
Introductions
4
May 7, 2010 08:16 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 06:23 AM.