1.8 swap: noob question - 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 02-15-2012, 09:43 PM   #1
Senior Member
Thread Starter
iTrader: (2)
 
Join Date: Mar 2006
Location: MA
Posts: 885
Total Cats: 2
Default 1.8 swap: noob question

if i'm MS, and planning on using the TB that came attached to my 2002 motor, all i should need as far as parts to do the swap into my 1993 chasis are the two motor mount brackets, and an EGR blockoff, correct?

Secondly, those brackets could just come from any 94-97 car. also correct?
devin mac is offline   Reply With Quote
Old 02-15-2012, 10:16 PM   #2
Elite Member
iTrader: (10)
 
soviet's Avatar
 
Join Date: Jan 2010
Location: VA
Posts: 3,516
Total Cats: 255
Default

I'll do this in list form
  • The brackets should be identical on any 1.8 block, and most likely same even on the 1.6 block.
  • Don't worry about EGR. I'm pretty sure if yo just leave the EGR solenoid in it's position unplugged, it will be closed. Worst case - use a sheet of alumium instead of EGR solenoid gasket.
  • You will need all the pigtails for all the sensors/valves sensors. Injectors are the same but just about everything else has a different connector (TB, IAC, so on).
  • For plug-and-play you will need the 1.8 throttle cable. 1.6 one will be too long.
  • As for sensors, you need to either use your old sensors or wire in the new ones into your engine harness. I did this, and it's a major pain because you have to solder while bent over in the engine bay.
  • TPS sensors only fit their respective throttle bodies - 1.6, 1.8 NA and 1.8 NB are all different.
  • Input mods for Megasquirt to use NB crank/cam sensors - I don't know, but these might be different too from NA CAS setups. That is, if you decide to use NB sensors (this is a idea, they are more accurate!)
  • VVT I don't even know
soviet is offline   Reply With Quote
Old 02-17-2012, 12:26 PM   #3
Senior Member
iTrader: (3)
 
Join Date: Sep 2011
Location: Plano TX
Posts: 595
Total Cats: 2
Default

I am doing the samething soon. I was told the cas from our 1.6 will plop right in on the back of the exhaust cam. If you look back there it is just like the back of the intake cam on the 1.6 and u just remove the bar they have blocking it off and install our cas. (i have not done this yet so if i am wrong please say so).

VVT is controled by the 200 dollar box diy sells http://www.diyautotune.com/catalog/v...7e836194ff7e69


I am very interested in if I need the egr block off plate and if I can use my existing mounts from my 1.6 so please report back if you try.

The flyn miata kit also notes some wire to extrend the cas. I am un sure if you could just use any wire and soldier it to extend but I figure you could.
I have a bmw vtps and am hoping it will plug in to the nb TB like it did the 1.6 but I dont know for sure.
90 Turbo is offline   Reply With Quote
Old 02-17-2012, 12:34 PM   #4
Senior Member
iTrader: (3)
 
Join Date: Sep 2011
Location: Plano TX
Posts: 595
Total Cats: 2
Default

One of my concern is the idle control. THe 1.6 is a one wire valve and the 01-05 1.8 is two wire so i am not sure how to conect it?
90 Turbo is offline   Reply With Quote
Old 02-17-2012, 12:43 PM   #5
Senior Member
iTrader: (3)
 
Join Date: Sep 2011
Location: Plano TX
Posts: 595
Total Cats: 2
Default

actually I was reading more one the diyautotune vvt controler and it says it

"This one also translates the NB crank and cam sensor signals into NA style signals, making it perfect for swapping the VVT head into earlier Miatas"
90 Turbo is offline   Reply With Quote
Old 02-17-2012, 01:22 PM   #6
Senior Member
iTrader: (18)
 
Join Date: May 2008
Location: Big Bear Ca
Posts: 990
Total Cats: 8
Default

Savington posted in a thread over on Miata.net several months ago detailing this exact swap.
dstn2bdoa is offline   Reply With Quote
Old 02-17-2012, 02:15 PM   #7
Senior Member
Thread Starter
iTrader: (2)
 
Join Date: Mar 2006
Location: MA
Posts: 885
Total Cats: 2
Default

link please, dan? i am full retard when it comes ot search and didn't find it over there in my first four point two minutes.

feed me, seymour, feed me.
devin mac is offline   Reply With Quote
Old 02-17-2012, 03:03 PM   #8
Senior Member
iTrader: (18)
 
Join Date: May 2008
Location: Big Bear Ca
Posts: 990
Total Cats: 8
Default

I'm on vacation and using my phone, so no can do.

Advanced search
Post by...Savington
Section... Engine swap or power mods can't remember for certain.
dstn2bdoa is offline   Reply With Quote
Old 02-17-2012, 03:09 PM   #9
Senior Member
Thread Starter
iTrader: (2)
 
Join Date: Mar 2006
Location: MA
Posts: 885
Total Cats: 2
Default

ok, no prob. i'll find it when i have more time. thanks for the heads up.
devin mac is offline   Reply With Quote
Old 02-17-2012, 03:49 PM   #10
Junior Member
iTrader: (1)
 
Join Date: Mar 2010
Posts: 147
Total Cats: 3
Default

Nevermind... I cannot say for certain so feel free to delete this reply.

Last edited by RyanLewo; 02-17-2012 at 03:51 PM. Reason: Bad information on my part.
RyanLewo is offline   Reply With Quote
Old 02-18-2012, 12:36 PM   #11
Senior Member
iTrader: (3)
 
Join Date: Sep 2011
Location: Plano TX
Posts: 595
Total Cats: 2
Default

What about the idle valve the 90 is 1 wire the 01-05 is 2 wire?
90 Turbo is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Raleigh: Fiberglass headlight scope, 1.6L ECU, AFM, Hardtop latches, more bigmackloud Miata parts for sale/trade 13 09-22-2017 01:34 PM
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
Noob to Miataturbo from MA JxPhan Meet and Greet 3 10-02-2015 03:17 AM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM


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 04:48 AM.