The directions for an FM kit in the old days using a Pierburg are using the OEM 
pump running to feed to the Pierburg.

 

 

 

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 1:22 PM
To: Bill Cardell
Cc: [email protected]; Larry Alster
Subject: RE: ARG - Fuel Pump dying again. :(

 

Grrrrrrrrrrr.. I asked *specifically* if I need to remove the dead stocker, and 
all you guys said no, leave it, not a problem. The info given was "No, we never 
rip the stock pump out, the pump is how the sock is mounted so without the 
stock pump, you won't have the input in the right spot". Which is right, so I 
installed it, presto, no problems till now.

So, when FM installs a Pierburg, you take the stock pump out?

Wallyman


Inactive hide details for "Bill Cardell" <[EMAIL PROTECTED]>"Bill Cardell" 
<[EMAIL PROTECTED]>




"Bill Cardell" <[EMAIL PROTECTED]> 

04/03/2008 12:52 PM




To


"Larry Alster" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, "Nathan Sumner" 
<[EMAIL PROTECTED]>




cc


<[email protected]>




Subject


RE: ARG - Fuel Pump dying again. :(

 







Larry brings up an important point. If the stock pump is in place and not 
working, it's a big restriction on the inlet of the Pierburg, and the inlet 
side is not the place to restrict.

Bill Cardell 
TurboDog's Dad 
www.flyinmiata.com 
1-800-FLY-MX5S (sales) 
970-242-3800 (tech) 
2008 FM Open House: August 14-17 

 

  _____  

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Alster
Sent: Thursday, April 03, 2008 9:58 AM
To: [EMAIL PROTECTED]; 'Nathan Sumner'
Cc: [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/> 
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 " height="16" id="_x0000_i1025">"Nathan Sumner" 
<[EMAIL PROTECTED]>


"Nathan Sumner" <[EMAIL PROTECTED]> 

04/02/2008 08:48 PM


To


<[EMAIL PROTECTED]>, <[email protected]>


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> 
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]> 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>
 
http://cgi.ebay.com/ebaymotors/WALBRO-255-LPH-FUEL-PUMP-Mazda-MX5-Miata-MX-5-255lph_W0QQcmdZViewItemQQcategoryZ33555QQihZ002QQitemZ120238884274QQrdZ1QQsspagenameZWDVW

Wallyman 



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