I come from a drag racing background... It's always been thought that
too much is ok... you get yourself a pump that puts out more than you
think you'll need...
like say a Comp140 Mallory pump, or something similar, then regulate
your pressure up near the carb.
Not using enough of a pump will kill you... I'd bought a big block
camaro many moons ago and had run it at the drags before I'd done
really even given it a good going over just to see where I was... every
pass, the motor just fell on it's face at about 1000ft...
turns out the guy had put some $30 electric pump on it and it couldn't
keep up... bowls were dry at 1000ft...
As far as line size... I'd always run -8 from the tank/pump to the
regulator, then -6 to the carb. Supply was never an issue, even running
up to 600hp...One thing to note though...we never ran the single inlet
that splits to the dual feed on our Holleys... we ran two separate
lines from the regulator, one to each bowl...I think at some point,
those single/dual inlets will become a restriction.
Ron
Matthew Post wrote:
Along the same lines as Larry's question. What brands of electric
fuel pumps do you guys use? How do I determine the gph required for
my engine (460hp+/-)?
I came across complete kits at summit and at scoggin dickey. Do you
guys think these are a good value for someone needing the complete
system from tank to carb?
http://www.sdpc2000.com/catalog/3217/products/154233/BG280-1x4-Fuel-System-Kit.htm
http://store.summitracing.com/default.asp?Ntt=aeromotive&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp
<http://store.summitracing.com/default.asp?Ntt=aeromotive&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp>Thanks!
Matt
At 04:43 PM 2/26/2006, Larry Shouse wrote:
I'm getting ready to run new fuel line from tank to my mechanical
fuel pump (Holley 110gph) to carb. Any suggestions concerning type of
fuel lines to use, and what you are using to filter your fuel and
placement of filter(s) would be appreciated.
Also, is anybody out there insulating the fuel line coming up to the
carb?
Thanks,
Larry Shouse
