Ian's 99 build thread
04-14-2017, 06:32 PM
#861
Elite Member
Thread Starter
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 5,165
Total Cats: 855
@turbofan how did you get just a new OEM sock? https://www.miataturbo.net/race-prep...handers-89826/
Also, in above thread, Ian says he has an OEM sock, but pic on post 6 is not an OEM sock.
Also, in above thread, Ian says he has an OEM sock, but pic on post 6 is not an OEM sock.
--Ian
Reply
0
0
04-14-2017, 06:33 PM
#862
Retired Mech Design Engr
iTrader: (3)
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,009
Total Cats: 856
Assuming you mean "Mazda", sure they do, I bought one. Looks like it's part # BP4W-13-ZE1 (at least, for an NB1, didn't check other years). "Filter, fuel pump."
I swapped out the one that had come with my Walbro for a new OEM one back when I was first investigating this problem last summer (a few pages back on the build thread). The OEM sock is held open with a spring, the Walbro one is not. The OEM sock went onto the Walbro input just fine, no rattling. Haven't tried a DW pump.
It didn't make any difference in the fuel starvation, though.
--Ian
I swapped out the one that had come with my Walbro for a new OEM one back when I was first investigating this problem last summer (a few pages back on the build thread). The OEM sock is held open with a spring, the Walbro one is not. The OEM sock went onto the Walbro input just fine, no rattling. Haven't tried a DW pump.
It didn't make any difference in the fuel starvation, though.
--Ian
Reply
0
0
04-14-2017, 06:46 PM
#863
Supporting Vendor
iTrader: (1)
Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,947
Total Cats: 1,002
FWIW, I never followed up in that thread... I thought putting in an OEM sock fixed my issue, but it didn't. It got a bit better, but still can't go below 1/4 tank. Hard left handers, no powah.
Reply
0
0
04-14-2017, 08:38 PM
#864
SADFab Destructive Testing Engineer
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
I think you should both add a hose extension on your return line. The pipe is easy to cut with a pipe cover. slip some hose over it and run it down to the sock.
2 cases of starvation, both using the same method of return.
It may not solve it. But its a logical explanation.
2 cases of starvation, both using the same method of return.
It may not solve it. But its a logical explanation.
Reply
0
0
04-14-2017, 09:37 PM
#865
Elite Member
Thread Starter
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 5,165
Total Cats: 855
I think you should both add a hose extension on your return line. The pipe is easy to cut with a pipe cover. slip some hose over it and run it down to the sock.
2 cases of starvation, both using the same method of return.
It may not solve it. But its a logical explanation.
2 cases of starvation, both using the same method of return.
It may not solve it. But its a logical explanation.
--Ian
Reply
0
0
04-14-2017, 11:00 PM
#867
Retired Mech Design Engr
iTrader: (3)
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,009
Total Cats: 856
Reply
0
0
04-14-2017, 11:02 PM
#868
SADFab Destructive Testing Engineer
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
I actually have one of those I was going to use before I built my own fuel rail. Good quality. I spent more on a black one. Saving it in case my diy fuel rail leaks
Reply
0
0
04-14-2017, 11:44 PM
#869
Elite Member
Thread Starter
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 5,165
Total Cats: 855
OK, ordered one of those fittings and the next time I have the fuel tank open I'll put it in.
I picked up a set of the directional rotors from Andrew yesterday and started putting them on.
Close up of the cracks:
Checking the hole spacing on the hats. They all came in within 0.008 inches, which seems pretty good.
Directional rotors.
They are a lot meatier than the cheap ones. That's more heat sink mass (good), plus it also means the inner edge the pad won't rid over the gaps and the attachment tabs, which was something that someone on another forum had expressed concern about.
--Ian
I picked up a set of the directional rotors from Andrew yesterday and started putting them on.
Close up of the cracks:
Checking the hole spacing on the hats. They all came in within 0.008 inches, which seems pretty good.
Directional rotors.
They are a lot meatier than the cheap ones. That's more heat sink mass (good), plus it also means the inner edge the pad won't rid over the gaps and the attachment tabs, which was something that someone on another forum had expressed concern about.
--Ian
Reply
0
0
04-15-2017, 02:07 AM
#874
Elite Member
Thread Starter
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 5,165
Total Cats: 855
Oh, I see. Nah, the $20 fitting is simpler and it means fewer parts I have to keep track of on the shelf.
Machining pads sounds like a really messy, ugly job. The directional rotors are broader, so the existing pads should fit on them just fine.
--Ian
Machining pads sounds like a really messy, ugly job. The directional rotors are broader, so the existing pads should fit on them just fine.
--Ian
Reply
0
0
04-17-2017, 02:11 PM
#876
Elite Member
iTrader: (37)
Join Date: Apr 2010
Location: Very NorCal
Posts: 10,441
Total Cats: 1,899
I think you should both add a hose extension on your return line. The pipe is easy to cut with a pipe cover. slip some hose over it and run it down to the sock.
2 cases of starvation, both using the same method of return.
It may not solve it. But its a logical explanation.
2 cases of starvation, both using the same method of return.
It may not solve it. But its a logical explanation.
See the short piece of black hose after the regulator? I'm sure Mazda put it there for a reason.
(Ignore the random extra crap in the image, its from some guys Camero engine swap thread on M.net)
Reply
0
0
04-17-2017, 02:20 PM
#880
Elite Member
iTrader: (37)
Join Date: Apr 2010
Location: Very NorCal
Posts: 10,441
Total Cats: 1,899
Wait more than 0.003 seconds before responding and you won't have this problem 
(Its surprisingly difficult to find a pic with the stock setup with the hose attached)
(Its surprisingly difficult to find a pic with the stock setup with the hose attached)
Reply
0
0
