Dual Fuel Pumps...yes? no?
Posted by 240tshead
adam crane Infallible Moderator Location: Seattle, WA Join Date: 01/28/2006 Posts: 382 Rally Car: corolla GT-yes |
Grant Hughes Professional Moderator Location: Whitefish, MT Join Date: 01/11/2006 Age: Midlife Crisis Posts: 6,818 Rally Car: BMW |
Pete Remner Ultra Moderator Location: Cleveland, Ohio Join Date: 01/11/2006 Age: Midlife Crisis Posts: 2,022 |
Did they scope the pumps to check pump RPM?
Junk cheap pumps (like those Airtex POS things aka "comeback in a box"  have looser tolerances on the pump, and the motor spins a lot faster. Good pumps spin down around 3000-4000rpm. Some of those Airtex things spin at close to 8000rpm when new. Think that wears the brushes and commutator down faster?Pete Remner Cleveland, Ohio 1984 RX-7 (rallycross thing) 1978 Silence is golden, but duct tape is silver. |
Alex Staidle Senior Moderator Location: Δx = ħ/2Δp Join Date: 08/21/2009 Age: Settling Down Posts: 1,719 Rally Car: Various Heaps |
John Vanlandingham Infallible Moderator Location: Ford Asylum, Sleezattle, WA Join Date: 12/20/2005 Age: Fossilized Posts: 14,152 Rally Car: Saab 96 V4 |
Obviously you look on-line.. If it has a nice, expensive looking web-site then it has to be good. And if a lot of people say it's popular, then it has to be good. All knowledge is found on-line Grant. People on line know everything and if they don't then real knowledge is just a few keystrokes away. It's only by looking online for example that we learned that "left foot braking is indispensable" for a guy who had done 2 events, that a $15,000 dog-box was a "must" fort a guy with 4 events who wasn't faster than other guys with stock box and a 2.5, that nuc-u-lar mushroom clouds would be the next thing you'd see if a person with less than some years experience shifted a turbo 2wd rally car into gear, and what the next big thing to save rally is going to be. And that "Heat Fence" is soooper bitchin and your dumb insert will be zapped up pretty soon...No such a shame you haven't listened when i've said to send the tubes up for a re-call to improve them...Oh well, you're too cool.  John Vanlandingham Sleezattle, WA, USA Vive le Prole-le-ralliat www.rallyrace.net/jvab CALL +1 206 431-9696 Remember! Pacific Standard Time is 3 hours behind Eastern Standard Time. |
John Lane Junior Moderator Location: Lynden Washington Join Date: 01/14/2006 Age: Possibly Wise Posts: 725 Rally Car: The Fire Breathing Monster |
Grant Hughes Professional Moderator Location: Whitefish, MT Join Date: 01/11/2006 Age: Midlife Crisis Posts: 6,818 Rally Car: BMW |
Sweet! I've spent everyday at the shop, which has been about 16-20 hours per week typically, for the past six months working on customer cars. I really wanna get some work done on the Merkur so I can race it again this coming spring. Get me that insert so I can get the car rollable and get some stuff done that requires mobility (pressure washing, painting, and a day on the lift) then I'll put it on jack stands, pull the inserts and send you the tubes by the end of the year!!! Grant Hughes |
Jason B Davis Godlike Moderator Location: Alamogordo NM Join Date: 08/02/2011 Age: Midlife Crisis Posts: 20 Rally Car: 1986 Toyota Corolla |
Out of this dumpster fire Senior Moderator Join Date: 08/15/2010 Posts: 1,236 |
John Vanlandingham Infallible Moderator Location: Ford Asylum, Sleezattle, WA Join Date: 12/20/2005 Age: Fossilized Posts: 14,152 Rally Car: Saab 96 V4 |
Out of this dumpster fire Senior Moderator Join Date: 08/15/2010 Posts: 1,236 |
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