MEGAsquirt A place to collectively sort out this megasquirt gizmo

1.8 swap w/ 90-93 mspnp

Thread Tools
 
Search this Thread
 
Old 09-29-2008, 10:47 PM
  #1  
Elite Member
Thread Starter
iTrader: (15)
 
thesnowboarder's Avatar
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,034
Total Cats: 5
Default 1.8 swap w/ 90-93 mspnp

Im going to be doing a 1.8 swap into my 90 which is equipped with a mspnp90-03 i was wondering if any changes would be needed to be made in order to have a successful install. Other than calibrating the tps. setting the req fuel for 460's and setting the timing.

Anything i missed? Anything someone who searches and finds this should know?
thesnowboarder is offline  
Old 09-29-2008, 11:54 PM
  #2  
Junior Member
iTrader: (12)
 
MikeRiv87's Avatar
 
Join Date: Oct 2007
Location: Central, NJ
Posts: 487
Total Cats: 1
Default

I'm in the same boat. You missed a few things:

Couple of other things may need to be modified if you want your setup to be close to stock driveability.

Your going to need to run wires and modify your MS to read the VTPS. Your 1.6L wiring harness and MS aren't setup for it. I think DIY has some sort of writeup or info on what needs to be done. Involves a jumper or something. I have a DIY MS so I'm not sure about the particulars.

Also the 1.8L idle control valve works the same as the 1.6L but has a different connector so you'll have to rewire that.

If you don't care about the VTPS which is really a luxury and not REALLY needed you could just get the FM TB adapter plate and slap on your 1.6L TP and idle valve leaving you with a simpler swap over. Basically tricking your MS into thinking you have a bored to 1.8L, 1.6L BP in there.

I on the other hand am leaving the 1.8L TB in place and ditching the idle valve seeing as I don't run AC or PS. I will run mapdot accel. until i get around to wiring the 1.8L VTPS but it is not on the top of my list seeing as I didn't have any issue using it on my 1.6L setup.

It's all up to you on what route and how complicated you want to make things...
MikeRiv87 is offline  
Old 09-30-2008, 01:43 AM
  #3  
Elite Member
Thread Starter
iTrader: (15)
 
thesnowboarder's Avatar
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,034
Total Cats: 5
Default

Things i forgot to add:
I currently have a Vtps from an auto 1.6 on my 1.6 so the vtps mod is done and working.
On the new motor, there is a variable tps, 1.6 TB welded onto the 1.8 mani.

Is there anything else i have overlooked?
thesnowboarder is offline  
Old 09-30-2008, 01:45 PM
  #4  
Junior Member
iTrader: (12)
 
MikeRiv87's Avatar
 
Join Date: Oct 2007
Location: Central, NJ
Posts: 487
Total Cats: 1
Default

Originally Posted by thesnowboarder
Anything someone who searches and finds this should know?

Looks like your set but I was answering it as you wanted not in one specific setup...
MikeRiv87 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tony the Tiger
Miata parts for sale/trade
63
12-29-2016 02:23 AM
itsMikey
MSPNP
3
09-28-2015 06:40 AM
vehicular
General Miata Chat
12
09-14-2015 03:17 PM
Backwoodsballer
General Miata Chat
0
09-04-2015 06:39 AM
StarGehzer
MSPNP
4
06-20-2009 05:50 PM



Quick Reply: 1.8 swap w/ 90-93 mspnp



All times are GMT -4. The time now is 01:34 PM.