Good idea? Using the EGR hole for mounting boost sensor? - 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 03-19-2012, 05:33 PM   #1
Destroyer of Inconel
Thread Starter
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 9,642
Total Cats: 954
Default Good idea? Using the EGR hole for mounting boost sensor?

I got to thinking about this last night... rather than drill and tap a hole in the intake manifold for a boost sensor, or try to figure out where to mount one elsewhere underhood, why not drill and tap the EGR blockoff plate and use that? BTW: this is for a electric sender for a boost gauge, not an ECU.

Someone explain to me why this is a bad idea, seems too obvious not to try.

Last edited by EO2K; 03-19-2012 at 06:36 PM.
EO2K is offline   Reply With Quote
Old 03-19-2012, 06:11 PM   #2
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

why would you drill and/or tap anything at all on the mani? there are a couple ports not doing anything as is, and you can also tee into a bunch of other ports on the mani as well.
18psi is offline   Reply With Quote
Old 03-19-2012, 06:22 PM   #3
Destroyer of Inconel
Thread Starter
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 9,642
Total Cats: 954
Default

I hadn't noticed any extra 1/8" NPT threaded holes in the manifold when I looked last.

Sure I could tube/tee/clamp it into something else, like the PCV or the brake booster line, but that's another tee and looks like crap. The goal would be simplicity. Why run a bunch of extra tubes and tees when I can just thread into a hole and run 2 wires? I'm just wondering if the EGR port would be a representative source of what's going on inside the manifold.
EO2K is offline   Reply With Quote
Old 03-19-2012, 06:30 PM   #4
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

Ah, so you're trying to bold the map directly to the mani. (guess I didn't understand that in OP).

Then I don't see any issues with that, esp since you're just running the signal to a boost gauge and not an EMS map sensor
18psi is offline   Reply With Quote
Old 03-19-2012, 06:38 PM   #5
Destroyer of Inconel
Thread Starter
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 9,642
Total Cats: 954
Default

Yeah, I could see how that was not clear, added "EGR" to "blockoff plate" in OP.

Plus, I'd prefer not to drill & tap this squaretop and eff it up. Everything I touch seems to be full of fail recently.
EO2K is offline   Reply With Quote
Old 03-20-2012, 07:37 PM   #6
Elite Member
 
codrus's Avatar
 
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 3,878
Total Cats: 344
Default

You're going to use the blockoff plate for the EGR valve, not for the EGR tube, right?

--Ian
codrus is offline   Reply With Quote
Old 03-20-2012, 08:38 PM   #7
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,367
Total Cats: 1,331
Default

Quote:
Originally Posted by codrus View Post
You're going to use the blockoff plate for the EGR valve, not for the EGR tube, right?

--Ian
This is important :P The EGR tube doesn't actually connect to the manifold anywhere - it just loops into one of the holes on the EGR valve. If you tap a block-off plate, make sure you're tapping the right hole.
Savington is offline   Reply With Quote
Old 03-20-2012, 08:56 PM   #8
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,131
Total Cats: 598
Default

I tap the mani so hard i leave a gaping hole in it.

Attached Thumbnails
Good idea? Using the EGR hole for mounting boost sensor?-p200212_1416.jpg  
triple88a is offline   Reply With Quote
Old 03-20-2012, 09:25 PM   #9
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Yup that's how to do it.

Just tap the bitch anwyerh
Faeflora is offline   Reply With Quote
Old 03-20-2012, 11:08 PM   #10
Destroyer of Inconel
Thread Starter
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 9,642
Total Cats: 954
Default

Quote:
Originally Posted by codrus View Post
You're going to use the blockoff plate for the EGR valve, not for the EGR tube, right?

--Ian
Quote:
Originally Posted by Savington View Post
This is important :P The EGR tube doesn't actually connect to the manifold anywhere - it just loops into one of the holes on the EGR valve. If you tap a block-off plate, make sure you're tapping the right hole.
You guys got it. I figure it would be good enough for a gauge. And yes, sticking it in the right hole is key.
EO2K is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
elesjuan's mediocre 95 Miata adventure (google fiber edition) elesjuan Build Threads 8 02-16-2016 09:36 PM
Turbo 1995 Miata Low mileage Clean Tekel Cars for sale/trade 29 02-05-2016 05:16 PM
Headphones PaperMate Insert BS here 32 09-25-2015 09:22 AM
Now shipping NC MX-5 (2006-15) Precision Sliding Seat Mounts FAB Fab9 Tuning - Miata Performance Parts 0 09-11-2015 01:02 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 09:47 PM.