View Full Version : Grand Marquis Dyno Results
HITEKBALANCER
10-02-2008, 05:30 AM
2003 Grand Marquis stock 4.6 sohc. Kooks headers, stainless works mufflers (2.5 mandrel bent) Vortec Supercharger V-3 s trim, Our own Intake and Bypass valve arrangement.
402.4 hp @ 5226 rpm 112.5mph
413.2 ft-lb @ 4789 rpm 102.9 mph
On mustang Eddy current Dyno freshly calibrated.
We ran out of fuel pressure in the rail. We will track it down and go again later.:P
Looks like a great start, Congrats. to you and your car!
DTRMiguel
10-02-2008, 05:38 AM
Sweet as numbers. Keep up the good work! :up:
HITEKBALANCER
10-02-2008, 05:40 AM
Sorry I forgot boost @ 5225 rpm 8.6 psi, overdrive innovators west damper and 2.812 pulley on the v3.
KillJoy
10-02-2008, 05:46 AM
VERY NICE!!!
Those numbers are not too far from my Stock Marauder + Vortech S-Trim @ 10psi!!!
:up:
KillJoy
HITEKBALANCER
10-02-2008, 05:54 AM
We still have some room on timing. Need more fuel. The 2v and the 4v have the same crank and rods (unless it is and actual cobra engine) how much power and punishment can your 4v dohcs take before the crank comes out the bottom?
FordNut
10-02-2008, 06:03 AM
We still have some room on timing. Need more fuel. The 2v and the 4v have the same crank and rods (unless it is and actual cobra engine) how much power and punishment can your 4v dohcs take before the crank comes out the bottom?
The cranks are good. None have broken that I know of. The rods will usually window the block somewhere between 450 and 500.
Blackmobile
10-02-2008, 06:50 AM
Another factor, my 4v dyno top end was 6500 RPM on the stock motor.
Rocknthehawk
10-02-2008, 06:52 AM
where did you dyno the car?
Great numbers! The car should be a beast
HITEKBALANCER
10-02-2008, 07:01 AM
Enhancedstreetperformance.com . They are in Sterling Massachusetts.
We can't rev it higher until get more fuel. I forgot to change the fuel filter. We have 39# injectors and a cobra pump. The AFR pushed over 12.0 when calling for 60# of pressure. The pressure in the rails dropped to 32psi at one point. We are researching this and will let you know what we find.
Rocknthehawk
10-02-2008, 07:21 AM
Enhancedstreetperformance.com . They are in Sterling Massachusetts.
We can't rev it higher until get more fuel. I forgot to change the fuel filter. We have 39# injectors and a cobra pump. The AFR pushed over 12.0 when calling for 60# of pressure. The pressure in the rails dropped to 32psi at one point. We are researching this and will let you know what we find.
Thank you, they're about 2 minutes from my house...i'll have to find out about getting some dyno #'s for my truck
Enhancedstreetperformance.com . They are in Sterling Massachusetts.
We can't rev it higher until get more fuel. I forgot to change the fuel filter. We have 39# injectors and a cobra pump. The AFR pushed over 12.0 when calling for 60# of pressure. The pressure in the rails dropped to 32psi at one point. We are researching this and will let you know what we find.
If you are using a single Cobra pump (its purple) that is the problem.
Use a GT Supercar pump, about $95 from Ford.
A 10ga wire from the battery to the trunk, then to a relay,(use the inertia switch out wire for the trigger) then to the FPDM will also help the Fuel pressure.
Good luck.
HITEKBALANCER
10-02-2008, 07:51 AM
Zack can you elaborate on this wiring setup. whatsa FDPM, where's the inertia switch?
Thanks
Blackmobile
10-02-2008, 08:00 AM
Zack can you elaborate on this wiring setup. whatsa FDPM, where's the inertia switch?
Thanks
I think it's called a Fuel Distribution Module. The inertia switch is in the trunk, up against the DS quarter panel.
If you are using a single Cobra pump (its purple) that is the problem.
Use a GT Supercar pump, about $95 from Ford.
A 10ga wire from the battery to the trunk, then to a relay,(use the inertia switch out wire for the trigger) then to the FPDM will also help the Fuel pressure.
Good luck.
+ 1 on what Zack said. The GT pump will give you plenty at those power levels. BTW, great numbers!
First get the 10 or 8ga wire from the battery to the trunk. Terminate the wire around the inertia switch.
Get a 30a relay and mount it nearby.
The inertia switch is the red button in the black housing that trips in an accident, cutting power to the FPDM (Fuel Pump Driver Module)
There is a wire going in to the inertia switch, and a wire going out to the FPDM (a black box about 4"x4".)
You need to cut the wire from the inertia switch to the FPDM.
This cut wire (still attached to the inertia switch) is now the trigger wire for the relay.
The other wire (connected to the FPDM) is now connected to the power out on the relay.
Your 8 or 10ga wire is obviously the power in to the relay. (make sure you fuse this!)
The last wire you need for the relay is the ground.
Here is what the inertia switch looks like:
http://ourworld.compuserve.com/homepages/oakwood_data/inertia_switch.jpg
And the FPDM:
http://i127.photobucket.com/albums/p143/sharkster_2007/FPDM.jpg
You will find both behind the carpeting on the drivers side of the trunk.
Good luck.
HITEKBALANCER
10-02-2008, 01:01 PM
Thank You Zack
FordNut
10-02-2008, 01:03 PM
FPDM = Fuel Pump Driver Module
If you go higher on power, get 60 lb injectors and add a KB BAP (Kenne Bell Boost-A-Pump)
larryo340
10-02-2008, 07:50 PM
This wiring diagram attachment from the 2003 Grand Marquis factory EVTM should help
Dennis Reinhart
10-02-2008, 08:32 PM
If you are using a single Cobra pump (its purple) that is the problem.
Use a GT Supercar pump, about $95 from Ford.
A 10ga wire from the battery to the trunk, then to a relay,(use the inertia switch out wire for the trigger) then to the FPDM will also help the Fuel pressure.
Good luck.
He was told that today, I feel a BAP will not be needed. I gave them all the part# for the wiring upgrade
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