1978 Bronco - 6BT Cummins - first fire

1978 Bronco that I'm currently building, running for the first time with the newly swapped 1991 6BT Cummins turbodiesel engine. The exhaust out of the turbo is only 12 inches long for the moment, so it's a bit louder than it will be when it's done, but it's still relatively quiet. This motor will make 250+ hp and 650+ ft/lbs of torque when I'm finished with the mods.

Category:

Autos & Vehicles

Tags:

• 1978
• Bronco
• full
• size
• 12V
• 6BT
• Cummins
• 5.9
• 1991
• turbo
• diesel
• mechanical
• CTD
• turbocharger
• project
• 4x4
• truck
• non
• intercooled
• lifted
• 35
• inch
• tires
• skyjacker
• C6
• Dynamic
• transmission
• billet
• torque
• converter
• rear
• trac
• loc

[TheDieselStop]

Looks good in ford blue. Nice job.

[AmericanThunder]

@TheDieselStop Thanks!

[woog74]

How 'bout an updated video on this truck? I assume it is long done by now and you have been driving it etc. Maybe a walk around and a report?

[AmericanThunder]

@woog74 I will do an update video soon. I'm about to go to the shop to mount up the 40" tires I just got yesterday, in trade for the old 9" locker chunk I'm no longer using. These tires will drop the cruising rpm down to 1800, so I'm hoping for an increase of 2-3 mpg. Plus, I think the truck will look cool with 40s on it. I also have an intercooler lined up, so once I get all the plumbing for it, I'll be installing that.

[staufferadam]

Really nice Bronco. I have read the posts over on FSB like three times!!! I love my bronco but the MPG make it tough to drive. I may have to consider this swap.

[AmericanThunder]

@staufferadam Thanks! I highly recommend this Cummins swap, it's really fun to drive, and is good on fuel too

[DTOMUSA74]

@NathansBackwoods It depends on how much you are willing to spend. Monster trucks are pushing 1700+HP and 1500Ft. LBS. of torque and they are using modified Ford C6 transmissions. The C6 is an amazing tranny in stock form and the sky is the limit for building them.

[AmericanThunder]

@NathansBackwoods My motor is making quite a bit of torque, but the Bronco is light, at 5100 lbs, plus I don't tow with the truck, either. It makes enough power to spin the tires in 2nd gear at 30 mph, and the C6 is still working great after 10,000 miles. I didn't get the top end C6 from Dynamic, either, I got the mid-range one. The top trans they build cost something like 3 grand, but there's probably not much on Earth that could break it.

[NathansBackwoods]

@AmericanThunder, I was looking at red eagle parts...they make some nice stuff, but the stage 4 c6 racing transmission is rated a 800 ft lbs. I will be pushing that and i dont know if a c6 will take around 950. That would be a safe zone...i might just use a manual tranny. The only reason im considering building the c6 is because its in the truck.

[AmericanThunder]

dynamicracingtrans dotcom