What about thease upgrades for my repower project?

[T. Baker]

3K GSK, torque plate or no torqe plate, 14cm turbine housing, posibly injectors and not sure which clutch.

I have a '96 Doge Cummins 5. 9 that is going to repower my IH pick up. I have an Advanced Adaptors Ranger gear splitter over drive feeding into a GM SM 420 truck 4 speed and a rear axel ratio and 235/85r16 tires that will give 60 mph at 1780 rpm. This drive line is maybe somewhat delicate to make more power with but if I use the power mostly in direct in the gear boxes and am careful I should still be able to enjoy some upgrading and if I do break something I can upgrade that. This is not a towing rig. I guess I'm going down the "addiction to power" slippery slope!

I would like to try to buy things that will work for me now and also if I decide to go further. The first thing that looks good is a 3K GSK. Then a cam plate. Then it looks like to use much power over 2500 rpm I might need to go with a bigger turbine housing like the 14 cm. I still want to keep bottom end torque. I think I don't want to go over 675 lb-ft of torque yet... . But I would like to keep some of that torque to the higher rpms that's why I thought of a bigger turbine housing and GSK kit. By the way I already have a Pyrometer and boost gauge and an intercooler from a '92 dodge Cummins on the truck. It has a Nissan turbo diesel now that is coming out. I was running that little 3. 3 liter prechamber engine with 18 psi of boost and 800 deg egt after turbo egt. max but the pistons don't hold up. The compression ratio is 20. 5 - 1 and the pistons crack that's why I am installing the 5. 9. I have and will use a intercooler out of a Ford Power Stroke and it is allot bigger than the one that's in there now! Also I will be doing my own exhaust in 3. 5"- 4" strait pipe. I am considering changing axel ratio from 3. 73 to 3. 08 to even lower my highway rpm to take advantage of fuel economy. But I do want the option of putting it in direct and really accelerating.

I was considering buying a South Bend Clutch which they said would really hold to some serious power and it costs too. A stock GM diesel clutch will hold up to 675 lb-ft before it slips and I thought that the clutch slip might not be such a bad idea if it saves me from twisting off the input shaft on the transmission!

I am not sure yet whether the engine I have was an auto or stick engine but will find out soon. Could that affect whether I need to replace the injectors or not? I was hopping I could hold off on that till later.

I would be very happy to have any ideas you have especially as to turbine housing upgrades and potential hp possible with these upgrades or others I should consider.

Thank you,

Treven.

 

[HoleshotHolset]

You can make 300hp at the wheels (900 ft. -lbs. at the wheels) with stock injectors, turbo, turbine housing, straight-piped exhaust, 3k GSK, a healthy plate (or no plate... ), timing set to 15. 5 or 16 degrees, and a set of 191 delivery valves. All of this is on a 160hp CPL engine.



The engine will have it's rated horsepower right on the data-plate. 160hp CPLs are the '94-95 auto trucks... . 180hp is manuals from '94-95, 180hp then becomes the '96-98. 4 auto trucks, and the 215 pumps are '96-98. 4 manuals.



I made 258. 6hp and 714ft. /lbs at the wheels BEFORE the GSK went in..... an easy 40hp will come from setting the timing and 191 delivery valves.



Drivetrain destroying power is easy. What's hard is keeping myself from calling Piers and ordering up more power... .



Matt

 

[T. Baker]

Matt what delivery valves does a 180 hp have?

 

[HoleshotHolset]

Somewhere between 131s (160hp pumps... ) and 191s.....

I'm not really sure... . let's let a super-guru reply... .

Probably 151's/161's or so..... that's just a guess.



Matt

On edit: (just testing some ASCII... ) þ²×¤

 

[WaynesWorld]

delivery valves

What are delivery valves? Some of us are new and learning but are afraid to ask. I'm not. Of course that what all good students say till they pass the teacher in the hammer lane.

WAYNES WORLD

 

[ADSmith]

I would add bigger injectors to the list. The bottom end improvement on mine was nothing short of amazing when I changed my 215hp injectors for the BD ones. I can get 20psi boost by 1250 rpm even with the 14cm housing-with the stock injectors it was more like 1700.

 

[AWM]

I gotta admire a guy who wants to stuff a 6BT into a scout, cool, if I remember right,a A/A ranger is only rated for 450# of torque, SM 420 probably less, I hope they hold up to your plans. Bob

 

[LarryB]

I would recomend putting it in as-is for now, drive it and then decide how much power you want. A 3K gov kit and sliding the stock plate forward 1/8" might be all you need to start breaking stuff. I think You can have as much as you want and more than your driveline can handle with just some rpm and fuel enhancements.