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Author Topic:   Fuel Pressure
chief4car
Dirt Full Roller

Total posts: 56
posted January 12, 2002 02:02 PM
What is the best way to regulate the fuel pressure on an alcohol burning engine with a block mounted mechanical pump.

Thanks in advance for your advice

4barrel
Dirt Full Roller

Total posts: 26
posted January 12, 2002 02:49 PM
I think Holley or Moroso makes a inline ajustable reg had one on a street rod several years ago check with your local speed shop in there Holley book

race8k
Dirt Forum Racer

Total posts: 98
posted January 12, 2002 05:01 PM
Barry Grant mechanical bypass is the only way to go.

x13jc
Dirt Freak

Total posts: 201
posted January 13, 2002 08:43 AM UIN: 27426975
we mount our regulator on the return line, to the fuel cell, at the carb.
Summit has them, jegs has them, almost any speedshop will also. Around $80

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RACERX

bbracer17
Dirt Freak

Total posts: 256
posted January 13, 2002 09:14 AM
BG mechanical bypass is the best with a stock mount pump.

chief4car
Dirt Full Roller

Total posts: 56
posted January 14, 2002 01:23 PM
Thanks guys

Is Barry GRant the only one who makes one of these throttle by pass.

Will a regulator in the return line give you lower pressure at idle and still leave plenty at WOT. Remember this is a block mounted pump.

Thanks

CNC DOC
Dirt Full Roller

Total posts: 52
posted January 14, 2002 09:28 PM
I use a C&S throttle by-pass.

Roadhzrd
Dirt Maniac

Total posts: 138
posted January 15, 2002 01:22 AM UIN: 28276986
Chief, A regulator on your return line is great for a belt driven pump but a block mount pump you'd be better off with a C&S or Barry Grant mechanical bypass or no regulator at all. Most block mounts don't put out the volume to use the regulator and at WOT the fuel bypasses the carb and leans out. I made that expensive mistake once

chief4car
Dirt Full Roller

Total posts: 56
posted January 15, 2002 03:49 PM
Thanks for the info guys

How can I contact C&S, what is their number and, Do they have a web site.

redneck bubbas racing
Dirt Freak

Total posts: 213
posted January 17, 2002 11:45 PM
If you have it adjusted correctly the mech. bypass will not lean a motor out. Alcohol motors need at least 8 1/2 lbs at wot. If you run a pump that flows this there is no way that you cannot use a regulator, it will blow the needle off the seat. Just my experiance.

CNC DOC
Dirt Full Roller

Total posts: 52
posted January 18, 2002 09:07 PM
C&S Specialties
3528 Highway B
St. Charles, MO 63301
636-723-4996

They don't have a website that I know of.

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