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New electric fuel pump questions.


Guest Anonymous

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Guest Anonymous

I have a 1976 2002 with 284 cam, piano top pistons,tii exhaust manifold, stock exhaust system, 155 even compression, and a Weber 38/38 DGAS carb. My question is has anyone had experience with either of the two fuel pumps sold by Top End Performance? They have the Carter 4070 for $109 and a generic looking pump priced at $89. If you have bought either of these pumps I would be interested in your comments. Thank you in advance!

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I use the carter fuel pump from TEP. my engine is alot like yours dr. Schrick 284 JE pistons tii dist. pertronix MSD6a weber 38/38 stahl replica header aluminum flywheel. i dont use a fuel pressure regulator. i do use a fuel pump relay with a cheep little switch on the ground side of the ciruit. i get aweful fuel economy but its alot of fun to drive. i switched from the mechanical fuel pump to electrical because i was running out of fuel in higher rpm 4-6.000 range. i think its a nice upgrade if you have alot mods done to your motor. i think most people on the FAQ dont like it (carter fuel pump).

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I have run the Carter pump since 1993 on various setups, also with no fuel regulator. Currently running dual Mikuni 44PHH, IE 9.5 piano tops, stock cam, Stahl header, Crane XR 700 with Crane PS40 coil, 002 Distributor rebuilt/recurved by Advance Distributors and am seeing 21 mpg around town. Also do not believe the myth that this pump will only work if mounted near the tank. Mine is and has always been, mounted on the side of the frame rail under the battery to allow me the use of the OE metal fuel return line as the primary fuel line. The pump is actually below the level the fuel tank.

Earl

74 02Lux

02 M Roadster

72 Volvo 1800ES

74 02Lux

15 M235i

72 Volvo 1800ES

People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

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Why are you going electric?

The mechanical pump from a Bavaria has a higher output to stock and is a bolt on upgrade.

see this FAQ:

http://www.bmw2002faq.com/component/option,com_forum/Itemid,57/page,viewtopic/t,294242

Less hassles, noise and fire risk.

Beaner7102

1971 - 2002 RHD VIN 1653940. Agave (stock with Pertronix & 32/36 Weber) - "Cactus"

1972 - 1602 RHD VIN 1554408. Fjord (with 2L motor, 5spd & LSD - Weber 40/40 to come) - "Bluey"

1984 - E30 318i VIN WBAAK320208722176 - stock daily driver

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I find it interesting that someone claimed they had fuel starvation above 4 or 5k rpm with a stock mechanical fuel pump. Probably a defective pump.

I ran a stock early mech pump using dual 45mm DCOEs / Schrick 304 / 2,2 liter motor (w alu flywheel). That baby spun to 7300 rpm without a hiccup. 125 Mains, 2.00 or 2.25 needles. Never a dry float bowl on 'em.

I've also used mech pumps for 38/38 DG and 40/40 DFAV carbs. Mechanical pumps - less wiring.

Virtually bulletproof. Quiet. Simple. All the things that make a 2002 great.

Paul Wegweiser

Wegweiser Classic BMW Services

Nationwide vehicle transport available

NEW WEBSITE! www.zenwrench.com

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