FJ62 Cummins R2.8 First Start 

Appreciate that. I'll get a video driving around soon. The turbo noises it makes are a good sound as well!

Thanks. This is a big milepost for the build.

I'm just referring to the transmission controller. The transmission is a 6L80E (probably from a corvette or other 2wd v8 model) and wants to talk to a Chevy ECM or controller, but the engine and everything is Cummins (Dodge). Therefore Zero Gravity provides a transmission controller that talks to the Chevy transmission and the Cummins engine.

@ Interesting

I haven’t driven it around yet. Still tucking up all the wires and lines. Which thermo switch setting did you pick for the Spal? Where did you tap into the CAN-Bus for the transmission?

@- Now that you mention it I don't remember where I tapped it if I did at all? I know that's not much help - sorry- and I used "High" as I think the "low" isn't active from the can bus.

@@gogop66 it needs both high and low and where you pop into the can-bus is important. I’ve heard of people having trouble with their transmissions (not going into gear or slow communication) because of the can-bus. Additional reading lead me to believe that the 12v battery and the switched lead from the transmission module both need to be wired to a switched connection.

@ I have a 97 80 series, with the 3.8 isf. Interesting in doing another?

Who is Murphy and why do we need his blessing to start our trucks?

@ haha yes

Hey Dave - I did delete the EGR system and the ECU was tuned to take advantage of that. Find me on Instagram and I can point you to the supplier (they prefer I not advertise about it publicly).

An FJ62 is 4280lb curb weight. I don’t think I added much if any weight with the 4 cyl diesel vs the 6 cyl gas. The truck does great uphill and doesn’t seem to want for power at all.

I haven't been on trail yet so I can't comment on that yet. On road, it's like a modern SUV in terms of acceleration. If I squeeze the throttle while turning it will spin the inside tire. I'm thinking it will do a burnout if I asked it to.

Good question Tom. There are a few things that attracted me to the R2.8. The first is modern technology. If I'm going to go this far into the the truck I'd like it to be something that takes advantage of all the new fangled technology out there to improve gas mileage and power. Secondly, every Cummins service station and dealer in the nation knows how to work on these R2.8 engines and even has parts for them. Out on the open road this is pretty significant. Not sure how I'd fair pulling into a toyota dealer with a 3.4L in the truck. The real question is LS or R2.8. I went R2.8 because I think it's cool and offers a little more for going offroad. Don't need to rev the truck all that much to have access to all that torque. Thanks for the question.

I'm still working out some kinks on the setup. Specifically that a diesel filling nozzel doesn't fit in the flapper of the stock gas filler neck, so I haven't gone through a full tank of diesel yet. Nor have I gone off road. I can tell you now though that there is plenty of torque. The truck squats and twists quite a bit when I put my foot in it.

Not so far. I need to do another video.

@ thanks for the answer, did you use electric or mechanical fan?

@@gogop66 Electric - I have plans to add a second pusher fan as well with a trans cooler.

I shouldn’t say Mark. The shop asked that I not make it public.

@ I understand, anyway to PM me info?

@@west67828 My Instagram is "TheNeek" if you want to message me there?

No good? Sorry to hear that. What was the problem?

@ 2 fans that covered 80% of the rad could not cool the engine on 6% grades. I was looking to save some HP. I went back to oem viscous coupled fan. My electric fans did not turn as faat as the stock fan did at full engagement so were possibly blocking ram air? Also they were not ducted as yours is which increases efficiency. Nice swap project on your FJ