Kickin' Hiney...

[Power Wagon]

I finally got my PW injectors installed.



These are the mods:



Timing bumped ahead (don't know setting)

12CM Exhaust housing

Straight pipe 3 inch exhaust

K&N air filter

PW injectors



Mike Ramos (Northwest Bombers) and I took the truck out for a shakedown cruise after putting the injectors in. We run up I-84 4 miles to an underpass to cross over and head back. Underneath, I figured it was dry and clean. Not at all. I smoked the tires by punching it.



Finally, finding a clean strip at the rest area (unoccupied) I tried again to get a feel for the lag. The truck moves about 4 feet and then it spins. If you power brake, it spins instantly. (both tires)



Mike and I did a test run up to 60 from a standstill on a slight uphill incline. Without powerbraking, from idle, in gear, he hit the watch and I hit the pedal, we recorded under 10. 2 sec to 60.



I tried 2 runs of 1/4 mile on the odometer, but was not able to complete any of them. OD refused to shift with my foot buried and the truck ran at governor cutoff most of the last tenth mile



It still did 77-78 MPH.



Oh, yeah, this is at about 3000 feet elevation, and 32 degrees ambient temp.

 

[Sled Puller]

Did you pay tax on those mods?



Better get that K&N out of there!



Will you get 300 hp out of it?

Cold tires spin easy.



"BUMPED" the timing? You could be in the danger zone! Anything above . 5 over stock is riding the ragged edge of disaster!



You need 4" exhaust, or it won't run.



12 is too small, excessive EGT. ,and too much manifold pressure



Do you have gauges? You can't drive without them!



You have to spend $3000 on the transmission or it will FAIL!



TDR folk lore, hehheheeh



LOL!

Enjoy the new ride Powerwagon, I promise not to harass you too much!



heehehhehehehe



Oo.

 

[R.E. Miller]

Sled Puller....LOL

What we should do, and what gets done are always two different things. It just becomes worse when you own a cummins and you think... . hmmm should keep the power stock, but if I turn this screw Then the loss of sanity begins.



Power Wagon, glad to see that you are having a blast in your first gen, mine tend to put smiles on my face every day



Russell



P. S. PW, what did you do to your AFC after the injector change? Just curious.

 

[Power Wagon]

I have not touched the AFC setup.



Sooner or later, I will be taking the pump off and calibrating it on the test stand. I'm going to fatten the torque curve (more low-end power) and set the AFC to the low side of the specs, to make absolutely sure I don't have smoke when you hit it.



Basically, now, if you hit it at a standstill as the turbo is spooling up, you get a dark haze for 1-2 seconds as the power's coming on. You can't see it behind you, but if you look at the pipe in the mirror, it is visible. Also, with headlights behind you, you can see a little haze come out at very high speeds. I think I'm needing to advance the timing some more. It got really quiet with the injector change.

 

[hdm48]

OK, now I have a question for you Power Wagon. What performance gains are there in adjusting the AFC? And just how is it done? are you aware of a "marine" pump? And if so what are the advantages of using one?

My rig does not smoke much unless I hit WFO from a stand still and then it's not a lot.

If you lay a spotted owl on the exhaust manifold it will be done and ready to eat by the time you get home from work.

 

[Power Wagon]

Originally posted by hdm48

OK, now I have a question for you Power Wagon. What performance gains are there in adjusting the AFC? And just how is it done? are you aware of a "marine" pump? And if so what are the advantages of using one?

My rig does not smoke much unless I hit WFO from a stand still and then it's not a lot.

If you lay a spotted owl on the exhaust manifold it will be done and ready to eat by the time you get home from work.

Unless the AFC is set so far off that you cannot develop enough boost to reach full fuel, there is no horsepower gain from adjusting the AFC. The only other benefit is that you get power quicker - puts in more fuel without boost. That makes smoke, btw.

 

[Deezul1]

Powerwagon, you are almost having too much fun.

 

[Ben Rumson]

Road Kill Cafe ...

Ah, yes, speaking of the infamous Spotted Owls...







I hear they taste like Chicken!

 

[Harlan]

They do when rosted on CTD.

Harlan

 

[rdodd]

Power Wagon, I also noticed my engine got more quiet and idled smoother after installing pw's. Why do these pw,s make it quieter? I also gained about 4-5 lbs. boost after installation. Went from 20 to 25 lbs. boost. I then turned fuel fuel screw clockwise (stop collar still on) and got about 1/2 turn and boost went up to 28-29 lbs. Also idle went up about 50 rpm,s after full fuel screw adjustment. I also noticed a black soot cloud of smoke when i hit pedal real hard when cruising so i backed starwheel about 1/2 turn and cleaned up smoke some. I had timing advanced before installing pw,s so truck runs pretty hard now. Also, one thing that made a huge difference was installing low stall torque converter---can really feel the torque.

 

[Power Wagon]

I have several theories why it's quieter... But I'm not sure any of them are correct, so for now, I'll just say I'm not sure.







I noticed your sig says you have the BD X-Stator converter...



Have some questions if you have a tach:



1. If you have towed a trailer... what rpm's do you run at 55 in OD on a grade or into the wind



2. What, if any, loss was there at the low end for acceleration off the line?



3. IF you have done the brake stall test (WOT, holding still with brakes) what rpm does your engine run up to?



Thanks

Mark

 

[rdodd]

POWER WAGON, i can't remember the rpm's when pulling my 5th wheel into wind or up a grade as i have not pulled since last fall, but i can tell you after the low stall torque converter was installed there was much less slippage when pulling. With the stock converter just applying a little throttle would bring the tach up before gaining any speed while cruising. Now, i apply a little throttle and tach stays still until i gain speed like i had a manual trans unless i apply a lot of throttle.

There is no loss of acceleration off the line with the tighter converter, acceleration from 0-60 is much faster. I have heard of people having problems accelerating from a dead stop with a tighter converter, but they were running stock power. Your truck should accelerate off line even better than mine with the 12cm housing and low stall converter.

I did a wot stall test while holding brake and waited for full boost and with stock converter it would stall at 2200 rpm's. After installing BD low stall converter it stalled at 1500. The stall speed will now be a little higher because i have added pw's and turned pump up a bit. I'm a little scared to check it with the added power.

 

[rdodd]

POWER WAGON-- Another thing i noticed after low stall converter was installed was the difference when using cruise control. Before when i encountered a slight hill engine would rev up with cruise on to maintain speed. After tc change rpm's stay pretty constant. Also engine noise is less when boost comes up because of less rpm variance.