I didn't see weight, but I bet it weights more than the 1FZ.
Cummins 2.8 actually in an 80
- Thread starter Landseer
- Start date
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Cummins has always used that tactic. Lower total power from the factory to create epic reliability. That's what made the 4bt and 6bt engines so great. (In my humble opinion)
I found this after I sent that response:
- Component Dry Weights:
Engine: 535 lbs w/o accessories
Transmission: 218 lbs w/ 300mm converter
Transfer Case: 92 lbs w/ adapter (9lbs)
Total Powertrain Weight: 845 lbs
If it's anything like most diesels you would need higher gearing in the axles. The Repower website has a gear ratio calculator you should check out!
P.S. when are you headed out west to hit Moab?
torfab
Supporting Vendor
I have 4.11 gears with 33's in mine and it does fine. The operating RPM range on this engine is identical to a 2F, it's very friendly. I'm going to change to 3.7 gears and 34" tires though because this thing is so torquey
Definitely interested in this swap for my '93 down the road. Awesome.
inkpot
SILVER Star
Think the Duromax 2.8 has been around since 2011 and upgraded for smog in 2014. Also available as a 3.6, but I don’t know if it is interchangeable with the 2.8. Just thinking used availability? A 3.6 well massaged would certainly provide 30-50% more power than a stock 2.8. THAT would be some serious gitty up n go!!
200hp and 400tq at the wheels sounds pretty darn adequate. Albeit that's 2 wheels not 4, not going to break any land speed records, but along the lines of a strong supercharged 1fz with a little extra torque and fuel economy.
Definitely interested....they talked about this at the Cummins dealer meeting and i didnt rwalize how complete of a kit it was...my mind started turning.
It comes with wiring, ecm, throttle pedal and trimmed engine, so all you need is trans adapter and mounts.
It comes with wiring, ecm, throttle pedal and trimmed engine, so all you need is trans adapter and mounts.
Will Van
GOLD Star
I agree, the 6BT engine is awesome! 6BT is my first choice for an 80 engine swap.
What engine are you referring to with 200hp and 400tq at the wheels? The Cummins R2.8 makes 161 hp and 267 lb-ft at the flywheel.
He's referring to Tor making that power out of the 2.8 with a tune. I suspect there's even more power to be found in that little motor.
Will Van
GOLD Star
Oh, gotcha. Thx!
Jason Andrews
Modaholic
The peak torque of these motors used to be 1800 maybe its towards 2000rpm, I haven't looked on these newer motors. So for 37-40s you would most likely want 4.56s if you want to still have decent MPGs.
- From the Repower website.
- Torque: 267 lb-ft @1500-3000 RPM
- Horsepower: 161 hp @ 3600
2fpower
SILVER Star
Jason Andrews
Modaholic
Yes, exactly. Peak torque by 1500rpm. Going much beyond 1800rpm the power will not be noticeably greater, but MPGs will go down significantly if above 2000rpm during normal highway cruising speeds.
Tq x rpm = hp So, my guess is that the engine has a fairly flat torque curve but hp will climb with rpm.
So this engine package isn’t really ideal for someone who wants to crawl as slow as possible with a stock trans and transfer case even with the current lowest low range gear set? Seems that way since you plan to run 3.7’s and 34” tides.
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It is no where near a 4bt or 6bt bolt pattern, the motor is completely different , in all aspects the adapter plate is completely different so are all of the outside components AC alternator power steering pump built for a RHD vehicle . My buddy has one in his shop, we have been talking about what to do with this thing. I will maybe post something soon after things are started
