3b power tricks?

[lowenbrau]

I'm not convinced by propane yet either but I have to wonder why anybody believes propane introduces 'extra heat' Expanding gasses result in lower EGTs which is proven by the pyrometer. I understand that there are two design concerns. First is the detonation or preignition of the propane caused by the the high compression. This can be controlled by ensuring that the fuel/air ratio stays weak enough that the propane won't ignite until the diesel is injected. Ideally you would inject both at once but that's not possible for us. The second concern is where the diesel is introduced to the air. If it is right at the engine intake there is a real chance that it won't mix well before it enters the combustion chamber. It might end up more in one cylinder than another. It turns out that you should really introduce the propane before the turbocharger so it mixes. I'm not crazy about having and intercooler full of mixed fuel/air but I suppose if you address the first problem and keep the mixture too lean to burn you should be ok.

 

[brownbear]

Not trying to hijack but could someone point me to the exact location of the fuel enrichment screw? Pic would be great or just tell me which page in the FSM it's on. I am not getting great milage and my EGT's are high (I know partly to tire size and gearing) but I was thinking of backing the fuel off a little. But mostly I feel I must always tinker with things.

-Noah
"Fix it till it's broke"

on your 3b its a screw with a flat head screw center.located on the back of the injection pump, back meaning towards the rear. facing the edic. you crack the nut and turn the center and then retighten the nut, but not too tight. You have to use some light wire after to safety the nut so it doesn't loosen,

I am not sure what that pic is of the enrichment screw. Thats not my setup.

It is a very sensitve screw. So you will notice small movements.

make sure you wire it. otherwise if it went loose it could get more fuel....bad.

 

[lowenbrau]

I am not sure what that pic is of the enrichment screw. Thats not my setup.

It is a very sensitve screw. So you will notice small movements.

make sure you wire it. otherwise if it went loose it could get more fuel....bad.

Same screw. The one in the picture has a High Altitude Compensator. Most CDM BJ60s do not have a HAC which is why BrownBear doesn't recognize it. Might work a bit as a boost compensator too if you plumb the vent line to a boost source.

 

[lowenbrau]

Here's a pump pic from another thread. It has no HAC.

 

[NStimac]

Thanks for clearing that up lowenbrau. When I first saw those pics I was thinking man that looks like an HAC.

 

[Tapage]

nope, sorry. the Turbo Glide 3B kit comes with a T25, and the 2H kit with a T28

jan

Sure .. ?

I can take a pic of one kit that I installed with a friend in a BJ-40 from turbo glide ..

 

[brownbear]

Here's a pump pic from another thread. It has no HAC.

yup same as my set up. So thats what a VAC looks like, eh?

 

[rolledb4]

Thanks to all who replied. Should I go with the mitsu diesel turbo or the mitsu gas turbo or maybe even the garretts? The mitsubishi seems easier for what I want. Does anyone have one in Canada they want to sell?

 

[brownbear]

check with diesel dude, he had a extra one.

I would think gasser would be better for the flow. Its closer to the flow of a 3b.

the general concensus is a 2.0 to 2.5 gasser turbo is close to what would work.

The mitso turbos are hard to find. Much easier to find a lebaron or other chrysler turbo. weld a plate on the manifold(if your flippin) and be done.

Skip the water cooling, just plug the ports. No need for that IMOP. Weld a fitting to the oil pan above the oil level and buy a 1/8 bsp fitting to -4 JIC for pressure.

For the oil pan fitting, you need to be double the px line. So your a -4 line(1/4 inch) you need a mine -8 scavenge(.500).

I used a turbo of a Merkur, but I have not idea yet how it will perform. Truck is off the road for repairs to the body.......long time.

 

[rolledb4]

thanx for the info. I'll be lookin for gassers then .

 

[arnott1t]

If you see one for the D50 pick it up. I have installed this turbo recently and it is amazing. After conversations with Diesel Dude he reccomended this turbo of the others. He is now running one off a Cummins Auto. He said it is another jump above the mitsu. My D50 turbo really really hauls. My 0-100kph is now in the range of 18secs with 33" and 4.11 gears. It can make 15psi and spool really really quick. The nicest thing is the boost at low RPM. Don't count the diesel one out just yet.