Ian's 99 build thread
#861
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@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
#862
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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
#863
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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.
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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.
#865
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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
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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
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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:
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-5.jpg)
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-8.jpg)
Checking the hole spacing on the hats. They all came in within 0.008 inches, which seems pretty good.
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-10.jpg)
Directional rotors.
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-6.jpg)
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.
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-9.jpg)
--Ian
I picked up a set of the directional rotors from Andrew yesterday and started putting them on.
Close up of the cracks:
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-5.jpg)
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-8.jpg)
Checking the hole spacing on the hats. They all came in within 0.008 inches, which seems pretty good.
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-10.jpg)
Directional rotors.
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-6.jpg)
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.
![](http://www.codrus.com/miata/fm2r/rotors-april-2017-9.jpg)
--Ian
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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
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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.
![Name: CamaroFuelPump.jpg
Views: 231
Size: 69.1 KB](https://www.miataturbo.net/attachments/build-threads-57/181249d1501200855-ians-99-build-thread-camarofuelpump.jpg)
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)