Fresh Dyno Tune

[ALange]

Well my wife brought my 94 in for a tune and she claims it is night and day improvement. It was running weak IMHO and attached is the dyno results. We also had installed a new chip that FASTCHIP made for it. The HP is still pathetic but predicable (and much improved) for a 94 454, but the torque looks impressive. When I get home next Christmas I'll take it for a cruise with trailer in tow and see if it is acceptable. If not I will be plumbing the depths of the forums knowledge for an engine build and throw a ton of cash at it.

 

DYNO TUNE ENGINE

Dyno readingsb efore new chip: Max. torque 445

@5lmph,

Max. power 160.7@ 12mph.C am pulling to 3,300

rpms.

After installing chip and resetting the ignition

timing the Dyno readings are : Max torque 524.3

@63 mph. Max power 221 at 78 mph. Cam now

pulling to 3,450 lpm's

Note: With the chip modification it is possible that

the massa ir flow sensorm ay causet he check

engine light to come on with a lean code.

INSTALL NEW PROM CHIP

Removed computer to Install a new PROM by

"FastC hip"

INSTALL CUSTOMER SUPPLIED PROM CHIP

(oN rHE SEAT)

CUSTOMER WOULD LIKE THE VEHICLE

DYNO TUNED FOR BEST POWER FOR

TOWING.

ENGINE HAS A SLIGHT ROUGH IDLE.

HAS A 3'' FLOW MASTER EX. WITH CAT,

MSD DISTRIBUTOR, K&N AIR FILTER, FUEL

FILTER IS NEW. PLUGS WERE REPLACED

RECENTLY.

HazardousM a

[merlin5577]

Oh man! Wow! Thing probably pulls like a freight train! Congratulations.

[ALange]

Oh man! Wow! Thing probably pulls like a freight train! Congratulations.

 

The truck is new to me and procured more for fun than practicality. It was quite a sluggish pig before I replaced the exhaust with a more restrictive set up. I have a car hauler that I fill with Harleys and I want to use it camping when I am stateside so I wanted pulling power. The truck is tip top with only 38K on it and not a spec of rust. Inside and out it is near flawless so it is worth investing for the long haul. It does have an ever so slight stumble at idle that naws at me so I'll try a few easy tricks to start. I suspect it may be carboned up as the previous owner only put 1 to 2K per year on it for the last 10 years and I think it craves a work out. This is my first NV4500 transmission and I love the way that sucker shifts. Great tranny.

[merlin5577]

Oh man! Wow! Thing probably pulls like a freight train! Congratulations.

 

The truck is new to me and procured more for fun than practicality. It was quite a sluggish pig before I replaced the exhaust with a more restrictive set up. I have a car hauler that I fill with Harleys and I want to use it camping when I am stateside so I wanted pulling power. The truck is tip top with only 38K on it and not a spec of rust. Inside and out it is near flawless so it is worth investing for the long haul. It does have an ever so slight stumble at idle that naws at me so I'll try a few easy tricks to start. I suspect it may be carboned up as the previous owner only put 1 to 2K per year on it for the last 10 years and I think it craves a work out. This is my first NV4500 transmission and I love the way that sucker shifts. Great tranny.

 

 

Sounds like a great truck.