99 Miata MAP Signal Source? - Miata Turbo Forum - Boost cars, acquire cats.

DIY Turbo Discussion greddy on a 1.8? homebrew kit?
Sponsored by:
Sponsored by:

99 Miata MAP Signal Source?

Old 06-16-2014, 01:31 PM
  #1  
Senior Member
Thread Starter
iTrader: (5)
 
Join Date: Nov 2013
Location: Wisconsin
Posts: 653
Total Cats: 67
Default 99 Miata MAP Signal Source?

Ok, so I had my MAP signal line for MS right after the TB, and that didn't seem to be the best.

The Flyin' Miata installation instructions say to go from the vacuum line at the back of the IM (near the firewall) and that seems to be a bit better... but I've read over and over on here to tee off the FPR vacuum line. And y'all are pretty smart.

Only thing is, in all my searching, I don't believe the 99 miata HAS an FPR...? I thought I was crazy about this, but I can't find anyone online selling 99 miata FPRs, and the Flyin Miata fuel rail installation says to "remove the FPR (90-97)/Damper (99-05)".

So what is the best place to pull a MAP signal on an NB Miata, and can anyone post a picture of where exactly it is?

I ran the car for 700 miles or so pulling MAP from the back of the IM, but if there's a better option I'd like to know it.

*flamesuit on*
mlev is offline  
Old 06-16-2014, 01:33 PM
  #2  
Senior Member
Thread Starter
iTrader: (5)
 
Join Date: Nov 2013
Location: Wisconsin
Posts: 653
Total Cats: 67
Default

(I hope you'll understand why searching for anything to do with "map" is useless, as all I get is a bunch of Fuel and Spark MAPS which isn't waht I'm looking for...)
mlev is offline  
Old 06-16-2014, 01:41 PM
  #3  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,499
Total Cats: 598
Default

I believe the source on the back of the intake manifold that you're currently using is the best place in your situation.

You have a returnless fuel system, so you have no FPR vacuum source like '90-'97 (another reason NAs are best). You could try t'ing off the brake booster line, as that's right next to where the FPR line is on an NA. You'll need a weird 3/8"(?) to 1/4" T fitting though. I think BEGI uses one for their setups.
curly is offline  
Old 06-16-2014, 01:43 PM
  #4  
Senior Member
Thread Starter
iTrader: (5)
 
Join Date: Nov 2013
Location: Wisconsin
Posts: 653
Total Cats: 67
Default

Thanks for the input. I think I'll leave it where it is now unless I get some erratic readings... I usually got one little "blip" about 3 seconds after starting the car, but then it settled down and all was great.
mlev is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rudes333
Miata parts for sale/trade
17
11-05-2015 02:16 PM
Johnny Tater
Engine Performance
3
09-23-2015 07:10 PM
Itty
MSPNP
6
09-22-2015 12:02 PM
SuperSneakySecretSquirrel
Meet and Greet
5
09-06-2015 09:30 PM
Motorsport-Electronics
ECUs and Tuning
0
09-05-2015 09:02 AM


Quick Reply: 99 Miata MAP Signal Source?


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.