10-23-2006, 12:50 AM
#1 Senior Member
Join Date: Jul 2004
Location: Calgary, AB, Canada
Posts: 10,760
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
mechanical fuel pump questions
Just out of sheer morbid curiosity, does anyone know the flow rate (say in GPH) or a stock style mechanical fuel pump? I guess the Carter M6626?
Also, is it possible to get a mechanical fuel pump that puts out more than 8psi such that you can use it, with a regulator, to fuel forced induction?
Thanks
__________________ 355 010 block decked to .021" deck height, .020" gasket, Speedpro hyper flat tops H345, 10.3:1 SCR calculated, turned stock crank - no balance job, Ohio crankshaft 5.7" 4340 rods 416 heads, 1.94" back cut/1.50", fully ported and polished. Chambers ended up at 64cc. Isky Z-25 - 1.6 SA rockers modified non-cc Q-jet Edelbrock Performer RPM Q-jet intake Super T-10 w/ Hurst super comp shifter. Howe hydraulic TO bearing with custom hydraulic linkage setup Heddman 68470 headers, custom y-pipe, full 3" exhaust, dynomax ultraflo welded muffler Rebuilt & beefed 10 bolt rear, Detroit True-trac, 3.73 gears
10-23-2006, 02:13 AM
#2 Moderator
Join Date: Jan 2000
Location: Rio Oro de Santa Ana, San Jose, Costa Rica
Posts: 19,820
Car: 1984 Z28 Hardtop / 1988 IROC T-top
Engine: 383 Carb / 305 TPI
Transmission: 4L60 / T-5
Axle/Gears: 3.54 Dana 44 / 3.08 10 bolt
I think it's somewhere around 65 GPH or so for a stock pump.
Racing pumps usually put out around 12 psi or so.
10-23-2006, 05:05 PM
#3 Senior Member
Join Date: Jul 2004
Location: Calgary, AB, Canada
Posts: 10,760
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
hmm, ok, so definately not up to the task overcoming forced induction pressures.
ok, thanks.
10-23-2006, 05:39 PM
#4 Moderator
Join Date: Jan 2000
Location: Rio Oro de Santa Ana, San Jose, Costa Rica
Posts: 19,820
Car: 1984 Z28 Hardtop / 1988 IROC T-top
Engine: 383 Carb / 305 TPI
Transmission: 4L60 / T-5
Axle/Gears: 3.54 Dana 44 / 3.08 10 bolt
It depends what kind of forced induction you're planning on using. If it's draw-through, there's no pressure to overcome.
10-23-2006, 06:16 PM
#5 Senior Member
Join Date: Jul 2004
Location: Calgary, AB, Canada
Posts: 10,760
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
oh, yea right, draw through like a roots blower eh?
Yea, I was thinking a blow through turbo.
Is my 65gph suitable for my medium 350, and up? Or should I be considering an upgrade in the future?
10-23-2006, 08:05 PM
#6 Moderator
Join Date: Jan 2000
Location: Rio Oro de Santa Ana, San Jose, Costa Rica
Posts: 19,820
Car: 1984 Z28 Hardtop / 1988 IROC T-top
Engine: 383 Carb / 305 TPI
Transmission: 4L60 / T-5
Axle/Gears: 3.54 Dana 44 / 3.08 10 bolt
You'd probably be good for a while.
If you needed more pressure from a mechanical pump, you'd probably use a piston pump instead of a stock type diaphragm pump. Quick Fuel has one that's good for 60 psi and 200 gph.
10-23-2006, 09:00 PM
#7 Senior Member
Join Date: Jul 2004
Location: Calgary, AB, Canada
Posts: 10,760
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
oh cool... too bad it's $240.. That's more than an a cheap electric.
oh well, won't need that for a while...
Thanks
10-23-2006, 09:00 PM
ThirdGen
1992 Camaro
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