1997 k1500 ext cab

[Dakota Hill]

Also now in the process of looking up all the 0411 swap info and go that route now already needs retuned so I might as well just do it

 

[Schurkey]

stock 062 heads... ...black bear do the tune. I got beat by a F-150 5.4L in it and it had a 55 gallon drum of boat fuel in the bed of the truck, and I got walked like wtf is wrong with this engine, it's honestly prolly no better than stock.

The cam you have, and the heads you have, and (maybe) Black Bear tuning...I wouldn't be surprised if you have LESS "usable" power than stock.

If I were you, checking cranking compression would become a top priority. Second priority would be to connect a scan tool, look at fuel trims, knock sensor activity, coolant temp, MAF, and MAP signal. But since it's so easy, verify ALL the sensors.

Third priority would be to verify that the throttle is opening all the way.

You've never mentioned what the fuel pressure is, or what gearing/tires the truck has. Automatic trans or manual? Brakes dragging? How old is the exhaust system? Catalyst plugging? Pipes collapsed? Restrictive muffler?

 

[Dakota Hill]

The cam you have, and the heads you have, and (maybe) Black Bear tuning...I wouldn't be surprised if you have LESS "usable" power than stock.

If I were you, checking cranking compression would become a top priority. Second priority would be to connect a scan tool, look at fuel trims, knock sensor activity, coolant temp, MAF, and MAP signal. But since it's so easy, verify ALL the sensors.

Third priority would be to verify that the throttle is opening all the way.

You've never mentioned what the fuel pressure is, or what gearing/tires the truck has. Automatic trans or manual? Brakes dragging? How old is the exhaust system? Catalyst plugging? Pipes collapsed? Restrictive muffler?

Fuel pressure is 60 psi at wot, Trucks 3.42, with 285/70/17s, auto 4l60e, no brake drag, exhaust fairly new fresh headers when I put the engine, single chamber racing mufflers, and no cat system, no collapsed pipes.

 

[letitsnow]

Those are tall tires, add in the 3.42 gears and even if tuned perfect it might be slow.

 

[Erik the Awful]

The cam you have, and the heads you have, and (maybe) Black Bear tuning...I wouldn't be surprised if you have LESS "usable" power than stock.

Wow, shots fired. I can tell you I have the same heads and a slightly larger cam lift, and it absolutely has more usable power than stock.

 

[letitsnow]

Uh oh. Feelings are getting hurt!

This place is turning into something that isn't very helpful.

 

[letitsnow]

OP is running 33" tires with 3.42 gears. Unless he puts a boosted big block in the truck, it is gonna be slow as molasses.

The rest of this **** aint gonna matter.

 

[Dakota Hill]

Wow, shots fired. I can tell you I have the same heads and a slightly larger cam lift, and it absolutely has more usable power than stock.

But why I did the research the 062 aren't that bad of a head granted their dated but still should be able to make some reliable power with it

 

[Dakota Hill]

Hell with me doing 0411 im hoping I can data log everything and find some of my issue and resolve it the best I can

 

[Erik the Awful]

I think Schurkey is mostly expressing a dissatisfaction for mail-order tunes.