mech fuel pump recommendation

[hgprem400]

can i get some recommendations for a mech fuel pump for a sbc that will support 600+ hp for drag racing. i am looking at the carter 172 gph pump. advertised flow is one thing, has anyone had actual success with one or any other pump? cheers

[540 RAT]

Well, people will often get into a heated debate over this topic. But as a point of reference, 800 hp BBC's will typically consume around 54 gph at WOT. So, if your pump is a 14 psi fuel pump that is regulated down to around 6.5 psi, it will be enough to deal with the G forces you'll encounter, and you should be good to go. A good number of guys have done just fine like this running low 10's. But if your pump is a low pressure pump that does not require a regulator, then you could have some delivery issues, due to G forces.

Also, Big Joe once told me that if your free flow rating is twice your actual consumption rate, you'll be fine.

[Ron Golden]

To calculate your fuel requirements estimate your peak horsepower then divide by 12. This is figuring with a BSFC of .50. Then multiply by 1.5 for a safety factor.

Example:
600 hp /12=50 gallons per hour.
50 X 1.5=75 gallons per hour.

Don't waste your money on a pump that flows 300 gallons per hour, spend it somewhere else.

Ron

[Solid LT1]

NEXTEL cup motors can make over 780HP with a CV Products billet fuel pump. That should do the job for you.

Here's a Ebay link for a used one but, price is a little high:

http://cgi.ebay.com/ebaymotors/CV-Produ ... 2a03b20b68

[SKeown]

Look at RobbMc fuel pumps. I run mid 10's in an AMX using his adjustable version.

SKeown

[hgprem400]

thanks a lot for all your recommendations. cheers

[Tokyo Torquer]

Look at RobbMc's 1000hp pump, or the Holley Ultra HP 200gph (i have this one but expensive)

[cv67]

Been running a 172 in a 550hp 383 for years never lays down.

Too bad there seems to be no rebuild kits for them anymore love this pump.
Ran 1/2" line from the bowls clear to the pickup/sock. May be overkill but works great..no regulator