Fuel pump issues 2nd time around. lots of $$$$ down the drain.
#1
Fuel pump issues 2nd time around. lots of $$$$ down the drain.
Short version
427 CI Actual LSX block.
Trickflow heads
Fast intake
102 MM throttle body
60# injectors
in-tank Granatelli fuel pump http://www.summitracing.com/parts/gr...model/firebird
on the Dyno @ 5k rpm and only making 500 hp to the wheels the fuel pressure drops like a ton of bricks.
This sucks as they didn't even get to tune or test the N2O which is set to 200 hp.
The owner is being pushed towards a intank $1000.00 Squashperformance dual walbro 450s.
What do you think about this ?
Where should the next fuel pump upgrade end up?
427 CI Actual LSX block.
Trickflow heads
Fast intake
102 MM throttle body
60# injectors
in-tank Granatelli fuel pump http://www.summitracing.com/parts/gr...model/firebird
on the Dyno @ 5k rpm and only making 500 hp to the wheels the fuel pressure drops like a ton of bricks.
This sucks as they didn't even get to tune or test the N2O which is set to 200 hp.
The owner is being pushed towards a intank $1000.00 Squashperformance dual walbro 450s.
What do you think about this ?
Where should the next fuel pump upgrade end up?
#4
BUT the car supposedly got a hot wire kit for the fuel pump.
#6
There is zero need for a dual pump setup on an NA/gasoline build like this. A good 340lph pump is ~300lph at GM fuel pressure. On gasoline that
That's over 900bhp of fuel NA.
Possible problems:
a) Not enough voltage (but you have a hotwire kit).
b) Less than optimal pump (I've never seen for data for that pump). Or bad pump.
c) Fuel regulator issues. What regulator and where is it?
d) Fuel pickup issues. Still using a fuel bucket?
That's over 900bhp of fuel NA.
Possible problems:
a) Not enough voltage (but you have a hotwire kit).
b) Less than optimal pump (I've never seen for data for that pump). Or bad pump.
c) Fuel regulator issues. What regulator and where is it?
d) Fuel pickup issues. Still using a fuel bucket?