My Walbro450 Install - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 06-16-2016, 11:40 PM   #21
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

I have the 12 gauge connector. There is no connector on the pump.

2nd option isn't fuel safe.
aidandj is offline   Reply With Quote
Old 06-16-2016, 11:44 PM   #22
Ich verstehe nur Bahnhof
iTrader: (3)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 3,707
Total Cats: 319
Default

Pump is hardwired, I was just thinking using the Metri-Pack 280 (10-12gauge) female pigtail to plug into the stock Walbro male pigtail (uncut), then the free end of the female pigtail to repin the stock tank side connecter to the stock feed through. 10-12 gauge up top;

should be fuel safe because it's the connector the pump came with.
psyber_0ptix is offline   Reply With Quote
Old 06-16-2016, 11:45 PM   #23
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

The bulkhead connector you posted.
aidandj is offline   Reply With Quote
Old 06-16-2016, 11:46 PM   #24
Ich verstehe nur Bahnhof
iTrader: (3)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 3,707
Total Cats: 319
Default

Quote:
Originally Posted by aidandj View Post
The bulkhead connector you posted.
Got it, I misread fuel pump wiring through firewall as through fuel cell (had other windows open). Removed this from prior post to curb misinformation. Thanks for clarifying.

Last edited by psyber_0ptix; 06-16-2016 at 11:57 PM.
psyber_0ptix is offline   Reply With Quote
Old 06-16-2016, 11:48 PM   #25
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

I did the same.
aidandj is offline   Reply With Quote
Old 06-16-2016, 11:55 PM   #26
Ich verstehe nur Bahnhof
iTrader: (3)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 3,707
Total Cats: 319
Default

Sorry dude, didn't mean to mud up your thread.
psyber_0ptix is offline   Reply With Quote
Old 06-16-2016, 11:57 PM   #27
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

No worries. Good links to those parts.
aidandj is offline   Reply With Quote
Old 06-17-2016, 12:24 AM   #28
Ich verstehe nur Bahnhof
iTrader: (3)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 3,707
Total Cats: 319
Default

psyber_0ptix is offline   Reply With Quote
Old 06-17-2016, 04:09 PM   #29
Sadfab Union President
iTrader: (3)
 
Join Date: May 2014
Location: Kansas
Posts: 2,690
Total Cats: 113
Default

This is cheaper, what I plan on doing...



Go back to the conduit section at home depot, grab a short 1/2npt to 1/2npt coupler and cut it in half. Weld the new bungs onto the pump plate, then screw these in. That's an 1/8NPT plug drilled out to 10-32 inside a 1/4npt nylon reducer bushing. Solder FP leads into the brass, thread them down into the reducing bushing. Only real big bummer is it's gotta be done with the leads fished through the FP mounting plate, or you'd have to split the voltage and ground wires somewhere inside the tank...

With the 10-32 hole soldered completely shut there's no way fuel would wick out...
Attached Thumbnails
My Walbro450 Install-ksuepdj.png  
deezums is offline   Reply With Quote
Old 06-17-2016, 04:11 PM   #30
Ich verstehe nur Bahnhof
iTrader: (3)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 3,707
Total Cats: 319
Default

Cheaper if you already have a welder :(
psyber_0ptix is offline   Reply With Quote
Old 06-17-2016, 04:17 PM   #31
Sadfab Union President
iTrader: (3)
 
Join Date: May 2014
Location: Kansas
Posts: 2,690
Total Cats: 113
Default

You could try and find a 1/4NPT locknut, then coat the whole mess in epoxy. I couldn't find them in home depot or menards, probably gonna have to be an online thing.

https://www.pressureparts.com/8-705-042-0
deezums is offline   Reply With Quote
Old 06-17-2016, 10:31 PM   #32
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

Stupid question, but is there an easy way to get from the battery to the gas tank? Pre drilled holes or anything? For wiring.
aidandj is offline   Reply With Quote
Old 06-17-2016, 11:27 PM   #33
Sadfab Union President
iTrader: (3)
 
Join Date: May 2014
Location: Kansas
Posts: 2,690
Total Cats: 113
Default

The filler neck hole?
deezums is offline   Reply With Quote
Old 06-17-2016, 11:31 PM   #34
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

Haven't looked over there. Would have to go across the trunk, which isn't my favorite.
aidandj is offline   Reply With Quote
Old 06-19-2016, 12:48 AM   #35
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

Here is what I ended up with for wiring so far. Had to go to dinner so didn't get the pumps swapped.

Grommet into the tank area.



12awg harness wrapped in sheathing. Spade terminals for the relay, ring terminals for the battery.



Hose clamps holding on the wiring. Might switch to zip ties if I need those hose clamps back at some point. I need some of the zip ties that you can stick in the holes.



Ground and F/P wire taken from the stock connector.



And here it is hooked up for testing with the stock pump. There is about a 1/16 of an inch of dirt covering the entire tank.

Attached Thumbnails
My Walbro450 Install-8meac5r.jpg   My Walbro450 Install-q8yxvhw.jpg   My Walbro450 Install-dx3wrwn.jpg   My Walbro450 Install-ogrwc2h.jpg   My Walbro450 Install-j5wmbsz.jpg  

aidandj is offline   Reply With Quote
Old 06-19-2016, 12:49 AM   #36
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

It works



aidandj is offline   Reply With Quote
Old 06-20-2016, 03:08 AM   #37
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

Holy **** this thing is loud. Sounds like someone turned the faucet on under the hood

Not overkill at all

aidandj is offline   Reply With Quote
Old 06-20-2016, 04:04 PM   #38
SADFab Destructive Testing Engineer
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,461
Default

aidandj is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Help with Braineack built MS3 - fuel pump circuit curly MEGAsquirt 38 07-22-2016 09:42 PM
Crank but no fuel or spark, MSPNPPro boileralum MEGAsquirt 24 05-25-2016 08:33 AM
Xida service & installation videos emilio700 Suspension, Brakes, Drivetrain 30 05-25-2016 12:37 AM
In-car Intercum for novice driver and instructors thumpetto007 Race Prep 19 05-14-2016 05:36 PM
Car cranks over but won't fire, no spark or fuel boileralum ECUs and Tuning 11 05-13-2016 10:10 AM


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 03:10 PM.