That was the directive given by the masses (the powerlist) when I installed it, which also surprised me. Been working fine for a year or more that way, too..
I need to check, but I think the stocker is unhooked, perhaps it still has
power, I dunno.
Wally
"Larry Alster"
<[EMAIL PROTECTED]>
Sent by: To
[EMAIL PROTECTED] <[EMAIL PROTECTED]>,
apower.net "'Nathan Sumner'"
<[EMAIL PROTECTED]>
cc
04/03/2008 11:58 AM [email protected]
Subject
RE: ARG - Fuel Pump dying
again. :(
I’m not sure you can leave the stock pump in there not running and expect
the Pierburg to pull through it.
Larry
White Knight 1991 Crystal White #99 CSP
Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo
Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger
Whooosh 2004 Titanium Mazdaspeed MX-5
LowCountry Miata http://www.lowcountrymiataclub.net
Masters Miata
RAGS 074
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Thursday, April 03, 2008 8:34 AM
To: Nathan Sumner
Cc: [email protected]
Subject: RE: ARG - Fuel Pump dying again. :(
I would agree... but I'm clueless why it happens.
First pump was stock, started to die 30 minutes out of Grand Junction
(wouldn't hold pressure at steady cruise, actually bellied up 3 days
later). Wired with 10 or 12 ga from battery to pump by Ken Hill.
Second pump, also stock, lasted a year. Rewired with 10ga on a relay at the
battery, battery to relay to pump, shortest route possible.
Third pump, used Pierburg from FM, lasted maybe year and a half. 10ga to
relay, 10 ga to ground. Stock pump still in the tank, unhooked
electrically.
Good link, thank you. Totally agree, would rather support a real vendor
than a nameless eBay guy. Which pump do you have, the 255 or the 255 HP? I
have read the HP is louder.
Wallyman
Inactive hide details for "Nathan Sumner" <[EMAIL PROTECTED]>"Nathan
Sumner" <[EMAIL PROTECTED]>
"Nathan Sumner"
<nathan.sumner@
gatech.edu>
To
04/02/2008
08:48 PM <[EMAIL PROTECTED]
m>,
<[EMAIL PROTECTED]
net>
cc
Subject
RE: ARG - Fuel Pump
dying again. :(
I don’t think fuel pumps should go bad that often… Maybe your over doing it
and getting too big of a pump and its getting overheated due to the large
amount of recirculation require when you aren’t at WOT. Just a though and I
haven’t been following your fuel pump stories. Maybe a RPM/throttle based
voltage limiter would help with this issue.
I normally don’t buy from ebay when I can buy it at the same price from a
“real” store. That’s just a habit of mine. I know lots of people (including
me) that bought walbro 255 from here:
http://www.autoperformanceengineering.com/html/fpapps.html If the ebay ad
picture is of the actual item, its not the “correct” pump as it appears to
require you to splice into the miata wiring. The correct one has the miata
style connector.
Also, I cannot hear my walbro anytime beside when I first turn on the key
and even then it isn’t loud.
Nathan Sumner
[EMAIL PROTECTED]
From: [EMAIL PROTECTED] [
mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, April 02, 2008 8:38 PM
To: [email protected]
Subject: ARG - Fuel Pump dying again. :(
Yup.. pump #3 for the Sub.. this time a used external Pierburg is dying on
me... ARG. While my gap was wrong (0.045) which was causing some of my
misfire troubles, the real cuplrit is the fuel pump dying off.. it'll go to
60psi at WOT (15psi boost) but then quickly falls on it's face, dropping
like a rock and the car starts stumbling, O2 reading leaner than 13.0:1.
Since fuel pumps apparently are consumables on my car, any reason I should
avoid the $99 Walbro 255lph ones on eBay? I'm not swallowing another $242
for a new Pierburg since the life expectancy of a pump seems to be a year
or two.. but at $100 I can almost tolerate the frequency... Thoughts,
anyone?? The Pierburg wasn't silent, and you could hear it at idle.. if the
Walbro is the same noise level, I think I could tolerate it.
http://cgi.ebay.com/ebaymotors/WALBRO-255-LPH-FUEL-PUMP-Mazda-MX5-Miata-MX-5-255lph_W0QQcmdZViewItemQQcategoryZ33555QQihZ002QQitemZ120238884274QQrdZ1QQsspagenameZWDVW
Wallyman
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