NA with VCT, CAS and NA manifolds - ID help. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 03-18-2016, 08:37 AM   #1
Senior Member
Thread Starter
 
Join Date: Nov 2012
Location: Israel
Posts: 543
Total Cats: -298
Default NA with VCT, CAS and NA manifolds - ID help.

Hey,

A friend got an NA with NB engine, the more I look at it the more I do not understand what happened to it.

It is a 95 NA,

Intake manifold: NA 1.8 like
No crank pulley sensor
VCT
CAS (NA like)
NA coils

What engine is it ? NB automatic ? how come the manifolds are interchangeable ?

Thanks !
elior77 is offline   Reply With Quote
Old 03-18-2016, 08:55 AM   #2
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,775
Total Cats: 1,106
Default

94-97 intake manifolds will not fit on a 99-05 without modifying the flange. So I am doubtful that was done, as it is a ton of work, and there is no real reason to do it. Could we get pictures of the engine and the bay?

NA coils will fit fine on 99/00 heads, so no issue with those being there. CAS can also be used on the newer heads.
shuiend is offline   Reply With Quote
Old 03-18-2016, 09:00 AM   #3
Senior Member
Thread Starter
 
Join Date: Nov 2012
Location: Israel
Posts: 543
Total Cats: -298
Default




Attached Thumbnails
NA with VCT, CAS and NA manifolds - ID help.-80-img_4214_c876088f8e81321e20a76506796f5acff68be848.jpg   NA with VCT, CAS and NA manifolds - ID help.-80-img_4215_0c02953d843d0a04260187993cd7b8dfd1b507cd.jpg  
elior77 is offline   Reply With Quote
Old 03-18-2016, 09:48 AM   #4
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,775
Total Cats: 1,106
Default

That is a VVT head for sure. I can't tell about the intake manifold from those pictures. Is it 2 piece or 1 piece?
shuiend is offline   Reply With Quote
Old 03-18-2016, 02:04 PM   #5
Senior Member
Thread Starter
 
Join Date: Nov 2012
Location: Israel
Posts: 543
Total Cats: -298
Default

It is 1 piece 94-97 1.8L manifold.

You can fit a CAS into an NB head ?
elior77 is offline   Reply With Quote
Old 03-18-2016, 02:21 PM   #6
Senior Member
iTrader: (14)
 
Join Date: Jan 2007
Location: Murfreesboro,TN
Posts: 1,277
Total Cats: 53
Default

Yes, you can fit a Cam Angle Sensor onto the NB heads. You just have to pop out the plug in the back. I believe you use the bolt hole that holds the retainer in place to secure the CAS.
Midtenn is offline   Reply With Quote
Old 03-18-2016, 02:32 PM   #7
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,775
Total Cats: 1,106
Default

CAS fits fine into a NB head.

Its the 1 piece 94-97 intake manifold that completely confuses me. It takes some real work to get one to fit. I believe all the port spacing matches up between the heads, but the holes for the studs are different.
shuiend is offline   Reply With Quote
Old 03-21-2016, 10:20 AM   #8
Senior Member
Thread Starter
 
Join Date: Nov 2012
Location: Israel
Posts: 543
Total Cats: -298
Default

How come no crank sensor ? like ib the NB

Could be only NB head ?
elior77 is offline   Reply With Quote
Old 03-21-2016, 10:27 AM   #9
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,992
Total Cats: 1,459
Default

When using an NA cas you don't need a crank sensor. Thats how it was first done.

runs a NA8 manifold on a 99 head.
aidandj is offline   Reply With Quote
Old 03-21-2016, 10:38 AM   #10
Senior Member
Thread Starter
 
Join Date: Nov 2012
Location: Israel
Posts: 543
Total Cats: -298
Default

I know when you run a CAS you don't need it, but it is not there completely.
I believe that if it was a complete NB engine the sensor was there but just not used.

You think it is just a NA8 intake manifold fitted on a NB head ? 99 ? no VCT on 99...

Thanks !
elior77 is offline   Reply With Quote
Old 03-21-2016, 10:40 AM   #11
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,992
Total Cats: 1,459
Default

It has VVT so it's an 01-05. No idea what VCT means.

The sensor can be removed. It's just a bolt.
aidandj is offline   Reply With Quote
Old 03-21-2016, 10:42 AM   #12
Senior Member
Thread Starter
 
Join Date: Nov 2012
Location: Israel
Posts: 543
Total Cats: -298
Default

VCT = VVT in mazda language

Thanks
elior77 is offline   Reply With Quote
Old 03-21-2016, 10:42 AM   #13
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,775
Total Cats: 1,106
Default

Are you trying to say there is no crank sensor installed? I can't tell from your pictures or not if it is there. If you are running the CAS there is no reason for the crank angle sensor, so it was probably removed.

It does appear to be a normal 94-97 intake manifolds, so nothing fancy that comes from the 99+ intake manifolds.
shuiend is offline   Reply With Quote
Old 03-21-2016, 11:37 AM   #14
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,440
Total Cats: 198
Default

99.9% VVT head with a modified NA8 intake manifold, nothing too difficult to do.
Reverant is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
NB2 VVT engine part out: 30k miles, lots of parts 18psi Miata parts for sale/trade 51 05-09-2016 10:55 AM
Need various sensors for NB2 ajay842 WTB 5 04-29-2016 04:35 PM
Colipto's beat 1.8 Miata going Turbo - Boston, MA Colipto Meet and Greet 2 03-18-2016 11:32 PM
Fitting VVT engine into NA8C chassis - on Sunday this week! EvilChap General Miata Chat 5 03-17-2016 05:14 AM
Hey guys Themiataproject2k16 Meet and Greet 3 03-14-2016 05:07 PM


Thread Tools

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 07:01 PM.