Head Swap Questions - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-08-2008, 05:59 PM   #1
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default Head Swap Questions

I have searched this board with every keyword I could think of, and I could not find a central location for all of the information I'm looking for. I found a great condition '99 head for next to nothing, so it appears I may go that route.

For a '99 head swap, I know I'm going to need the '99-'00 intake manifold.

The fuel rail/regulator/return is of no concern because I have the dual feed rail that was group bought a while back and it has 2 return ports to choose from.

Now for the questions I have:

Can I get rid of the plug on the back of the head and use my '95 CAS?
Can I use my '95 valve cover?
What does it take to make the VICS system work properly? RPM switch?
I want to do the DIY P&P, but want to know what book it is that everyone keeps recommending for it.

Anything else I'm missing?

Thanks!
RotorNutFD3S is offline   Reply With Quote
Old 10-08-2008, 06:08 PM   #2
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

Quote:
Originally Posted by RotorNutFD3S View Post
Can I get rid of the plug on the back of the head and use my '95 CAS?
Yes.
Quote:
Originally Posted by RotorNutFD3S View Post
Can I use my '95 valve cover?
Yes. The 99' valve cover has a provision for the 99 CPS (cam position sensor, not cam angle sensor), but you won't need it if you run the CAS.
Quote:
Originally Posted by RotorNutFD3S View Post
What does it take to make the VICS system work properly? RPM switch?
Yes. You'll need a window switch to trigger the solenoid. MS will do this if you have spare outputs. I also have fancy MSD Digital window switch F/S if you are interested.
Quote:
Originally Posted by RotorNutFD3S View Post
I want to do the DIY P&P, but want to know what book it is that everyone keeps recommending for it.
"How to Build, Modify, & Power Tune Cylinder Heads" by Peter Burgess and David Gollan. There are others too, but this is a good one. I suggest getting this one and maybe another and reading them BEFORE you buy any parts or do any modifications to the head.
patsmx5 is offline   Reply With Quote
Old 10-08-2008, 06:15 PM   #3
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default

Thanks for the answers. I'm glad I can use my valve cover, it just got back from being powdercoated. lol

How hard is it to remove that plug?

I'm running the Link, so it would have to be the MSD. How much for your switch? And what RPM does the VICS solenoid have to be triggered at?

I'll get that book then. The only parts I will have for the head are the head itself and Neogenesis' stock sized Supertech valves that I bought in preparation for head modification.

Any other items I'm overlooking?
RotorNutFD3S is offline   Reply With Quote
Old 10-08-2008, 06:18 PM   #4
Elite Member
iTrader: (21)
 
paul's Avatar
 
Join Date: Jun 2006
Location: Point Pleasant, NJ
Posts: 2,957
Total Cats: 2
Default

that plug pops right out if you loosen the bridge over it
paul is offline   Reply With Quote
Old 10-08-2008, 06:19 PM   #5
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Yes to all questions. I'd probably advise against a DIY P&P, but if you want to just clean up things like casting marks a little that's OK.
Ben is offline   Reply With Quote
Old 10-08-2008, 06:26 PM   #6
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

egr plug/plate too.
hustler is offline   Reply With Quote
Old 10-08-2008, 08:13 PM   #7
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default

Thanks Paul. Thought so, but just wanted confirmation.

Ben, why? Doubting my skills? lol I've read of people having good results with it, but definitely open to other input.

Hustler, I have the plates from my current motor, but thanks, good to have a checklist running because I didn't think about those yet.
RotorNutFD3S is offline   Reply With Quote
Old 10-08-2008, 08:22 PM   #8
Elite Member
iTrader: (21)
 
paul's Avatar
 
Join Date: Jun 2006
Location: Point Pleasant, NJ
Posts: 2,957
Total Cats: 2
Default

I'd say practice on an NA 1.8 head. Those are a dime a dozen.
paul is offline   Reply With Quote
Old 10-08-2008, 08:38 PM   #9
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default

Well, I do have my old one sitting around waiting...
RotorNutFD3S is offline   Reply With Quote
Old 10-10-2008, 01:21 PM   #10
Elite Member
iTrader: (7)
 
Join Date: Jan 2008
Location: Knoxville, TN
Posts: 2,121
Total Cats: 44
Default

hey hey,im doin this swap come tuesday . ill let u know what i screw up on

just wondering does it matter what rpm switch u get? lookin at this one :
http://www.hamotorsportsusa.com/msdrpmacsw.html

and what rpm does VICS activate?

hrmmm come to think of it, maybe i should just wait until i get MSPNP :-\

as far as literature goes, i got Keith Tanner's Performance Projects, its suppose to have a rewrite on the swap.
flier129 is online now   Reply With Quote
Old 10-10-2008, 04:36 PM   #11
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Run it on the dyno VICS off, then run VICS on. The switch point is where the lines cross.
Ben is offline   Reply With Quote
Old 10-10-2008, 04:56 PM   #12
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

I wish I could use an NA intake plenum, instead of the 99 plenum.
hustler is offline   Reply With Quote
Old 10-10-2008, 05:01 PM   #13
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

The switch point is ideally determined with a dyno - however, I've looked at several dynos, and found the switchpoint is always between 5,000 and 5,500, and the factory position is around 5,200. I set mine for 5,250 and never regretted it. I've moved it around, too, but that's where I've left it.

I have a '00 manifold, by the way. I have two, if you want one with secondary injector ports and a rail. :-P
AbeFM is offline   Reply With Quote
Old 10-10-2008, 05:38 PM   #14
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default

Abe, is the unmodified one for sale? The head I found does not have a manifold with it.
RotorNutFD3S is offline   Reply With Quote
Old 10-14-2008, 12:31 PM   #15
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default

One more question, and this may be a dumb one, but I've never been able to compare a 94-97 and a 99-00 closely, so pardon my ignorance.
But if I can get an '00 intake manifold, can I use my '95 throttle body on it?
RotorNutFD3S is offline   Reply With Quote
Old 10-14-2008, 03:14 PM   #16
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

I dunno on the throttle body. I think I'm going to have to spend a bit of time figuring out what I'm doing before I sell anything.
AbeFM is offline   Reply With Quote
Old 10-14-2008, 05:07 PM   #17
Elite Member
Thread Starter
iTrader: (33)
 
RotorNutFD3S's Avatar
 
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29
Default

I was PM'd by someone that has one for sale. It has the VICS solenoid and actuator, just not a TB, so thus the question. I'm asking just in case I have to go that route.
RotorNutFD3S is offline   Reply With Quote
Old 10-14-2008, 05:23 PM   #18
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

I had assumed it would work, but honestly do not know. If you can not find a web answer, you are welcome to attempt to bolt your TB to the manifold(s) in my garage.
Ben is offline   Reply With Quote
Old 10-21-2008, 11:26 PM   #19
Elite Member
iTrader: (7)
 
Join Date: Jan 2008
Location: Knoxville, TN
Posts: 2,121
Total Cats: 44
Default

can u use a 94-97 fuel rail on a 99-00 head?
flier129 is online now   Reply With Quote
Old 10-22-2008, 01:00 AM   #20
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

If you can't, I have about 7 million 1999+ fuel rails.
AbeFM is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
Noob to Miataturbo from MA JxPhan Meet and Greet 3 10-02-2015 03:17 AM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
VR6 to Miata Swap ScrapinMX5 Meet and Greet 8 09-28-2015 02:04 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:00 PM.