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  #201  
Old February 10th, 2017, 03:53 PM
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A 4BT would be like driving an engine from the 50s compared to this. A 4500 is gigantic compared to a 3550, Fitting a 3550 should be much less trouble. If you are doing a 4BT, you might as well do a 6BT. Everything needed to do a 6BT is available off the shelf.
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  #202  
Old February 10th, 2017, 05:49 PM
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It takes an adapter to get from the cummins to the NV3550. If you go back to the Jeep tube socks video at 5.02 the adapter is clearly seen on the bench pre installation. https://youtu.be/icp2Pb5uoME?t=4m55s and again later as they hoist it into the jeep.

From digging around, looks like the NV3550 is an inch and a half longer than the R380. Now add the Engine adapter to NV3550, then NV3550 adapter to LT230 and it has to be longer than the 300tdi/V8/r380/lt230 combo. Thats not good especially for 90 owners.

The Cummins has the standard SAE 12 bolt pattern. Best option lengthwise seems to be to have an Cummins to R380 adapter made. There may already be a pattern out there by places like M&D Engineering.
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  #203  
Old February 10th, 2017, 06:30 PM
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Advance adapters makes the adapter. The NV3550 is shorter with bellhousing than a long bellhousing r380.
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  #204  
Old February 10th, 2017, 06:36 PM
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Lt230 with bellhousing is 25". NV3550 is 23".
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  #205  
Old February 11th, 2017, 06:54 AM
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Quote:
Originally Posted by Red90 View Post
Lt230 with bellhousing is 25". NV3550 is 23".
Bellhousing on an LT230?

The numbers I have ignore bell housing which obviously can vary. NV3550 is 16.7 and R380 is 15.2
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  #206  
Old February 11th, 2017, 07:32 AM
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Should have read R380. The bellhousing is important for determining fit space. The point being the NV3550 with adapter to LT230 will be the same length as an R380.
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  #207  
Old February 11th, 2017, 07:36 AM
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Quote:
Originally Posted by Rocky View Post
The numbers I have ignore bell housing which obviously can vary. NV3550 is 16.7 and R380 is 15.2
Those numbers are the case lengths. They have no use in the discussion as it does not include the input shaft.

All that I was trying to show is that it appears an NV3550 should fit in the same space as an R380, which makes it possible. You could also use an R380. If you already had one in the truck, it would make a good option. If you needed a gearbox, an NV3550 would make a good option (assuming it fits).
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  #208  
Old February 11th, 2017, 08:41 AM
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Quote:
Originally Posted by Red90 View Post
All that I was trying to show is that it appears an NV3550 should fit in the same space as an R380, which makes it possible. .
Agree they are very similar in size and weight. Gear ratios are darn close to with the NV3550 having a broader spread of ratios.


NV3550
First Gear 4.01
Second Gear 2.33
Third Gear 1.39
Fourth Gear 1.00
Fifth Gear 0.78
Reverse 3.57


R380
Fifth 0.77:1 or 0.73:1
Fourth 1:00
Third 1.30:1 or 1.39:1
Second 2.13:1 or 2.13:1
First 3.39:1 or 3.32:1

Its definitely going to be interesting to see whether the shifters will match the R380 tunnel or some tweaks there are needed as well.
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  #209  
Old February 11th, 2017, 09:39 AM
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I've found the NV3550 to Cummins adapter plate, but is there an R380 to Cummins plate?
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  #210  
Old February 11th, 2017, 09:53 AM
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Quote:
Originally Posted by Rocky View Post
Its definitely going to be interesting to see whether the shifters will match the R380 tunnel or some tweaks there are needed as well.
From what I can see, the NV3550 shifter will sit where the LT230 shifter sits on a Defender more or less, so you would need to make something to put the LT230 shifter in front of it.
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  #211  
Old February 23rd, 2017, 11:17 AM
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I am currently in Talks with Cummins to be a test truck for their new repower program. I would replace my 300tdi with the new R2.8L 50 state emission compliant crate engine kit. Here is my question I have the R380 5 speed transmission and was wondering if I should look at upgrading to newer 6 speed? The difference is about 40 hp my main complain is I cant tow anything and maintain speed on hwy this is why I want to upgrade. Appreciatie some input 2.8 L (171 cu in)Cylinders:4Aspiration:Turbocharged and AftercooledTorque^:267 lb-ft @1600-3200 RPMHorsepower^:160 hp @ 3200 RPMBore:94 mm (3.70 in)Stroke:100 mm (3.94 in)Compression Ratio:16.9:1Fuel System:Bosch ElectronicEngine Weight:503 lbs^Final ratings may vary.
Engine image for marketing purposes only. Actual product may vary.R2.8 Turbo Diesel: The First Cummins Crate Engine

The first available Cummins Repower engine will be the R2.8 Turbo Diesel. This powerful 2.8-liter 4-cylinder engine is perfect for use in small pickups,
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  #212  
Old February 23rd, 2017, 11:38 AM
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Quote:
Originally Posted by mstell View Post
Here is my question I have the R380 5 speed transmission and was wondering if I should look at upgrading to newer 6 speed?
Changing to the Getrag MT92 is fairly involved. It is also not well regarded for reliability.

As discussed above, the easiest way forward "today" is to use an NV3550. With a 1.2 transfer case, the gearing should be really good. The adapters for engine to NV3550 and to LT230 already exist.

The second option would be to develop an adapter to the R380 and use a 1.2 transfer case. However, I would suggest that the R380 first be upgraded with Ashcrofts HD rear bearing. the strength of the R380 is being pushed with this engine.
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  #213  
Old February 24th, 2017, 12:19 PM
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Quote:
Originally Posted by mstell View Post
I am currently in Talks with Cummins to be a test truck for their new repower program. I would replace my 300tdi with the new R2.8L 50 state emission compliant crate engine kit. Here is my question I have the R380 5 speed transmission and was wondering if I should look at upgrading to newer 6 speed? The difference is about 40 hp my main complain is I cant tow anything and maintain speed on hwy this is why I want to upgrade. Appreciatie some input 2.8 L (171 cu in)Cylinders:4Aspiration:Turbocharged and AftercooledTorque^:267 lb-ft @1600-3200 RPMHorsepower^:160 hp @ 3200 RPMBore:94 mm (3.70 in)Stroke:100 mm (3.94 in)Compression Ratio:16.9:1Fuel System:Bosch ElectronicEngine Weight:503 lbs^Final ratings may vary.
Engine image for marketing purposes only. Actual product may vary.R2.8 Turbo Diesel: The First Cummins Crate Engine

The first available Cummins Repower engine will be the R2.8 Turbo Diesel. This powerful 2.8-liter 4-cylinder engine is perfect for use in small pickups,


Hey Mark,
If they would like a Disco 1 test vehicle, they can use mine. I would just have to pry it out of Pendy's hands.
Surely they wouldn't need it for 10 years.
And maybe I would be driving it before summer.
🤣


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  #214  
Old March 8th, 2017, 10:01 AM
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Just in

If you are having trouble reading this email, read the online version.

Greetings Fellow Enthusiasts,

I’m Steve Sanders, Program Leader for Cummins Repower™ – the new crate engine business of Cummins Inc, responsible for bringing the R2.8 Turbo Diesel to market.

First of all, thank you. You received this note because you already either completed the Cummins Repower survey or signed up online to be notified when these engines are available for purchase. Your voice brought this program to life and I am grateful for that. The entire Cummins team is thrilled with the overwhelmingly positive response from enthusiasts like you from all over the world.

Every day we are asked, “When can I buy the R2.8?” and, “How much will it cost?” While we aren’t quite ready to announce those details yet, I assure you our team is working tirelessly to perfect our R2.8 Turbo Diesel package based on your feedback, in order to live up to your expectations for Cummins quality.

As explained in the formal announcement of Cummins Repower at the 2016 SEMA Show, our start of sales date is dependent upon emissions certification. We will only launch once we can provide customers clear guidance as to which vehicle vintage and weight class our certifications will cover. Cummins Repower’s most important objective is to offer enjoyable, reliable and compliant engines to keep your Repowers on the road or trail for years to come, and eliminate the confusion at the license branch and smog referee.

I have had the distinct pleasure of driving many of our test vehicles thousands of miles in many different configurations over the past several years, and I plan to be first in line to buy one. When it comes to what you would expect from a Cummins, the R2.8 does not disappoint – giving any qualifying vehicle a turbo-charged diesel breath of new life.

There will be a few Cummins R2.8 test vehicles running around at this year’s Easter Jeep Safari and Overland Expo West. We hope you will stop by and check them out. We should have more updates to share by then as well.

Also, tune in to upcoming episodes of Xtreme Off-Road on Power Nation TV to watch as the R2.8 Turbo Diesel is installed into a wildly modified Land Rover Defender 90 by host Ian Johnson.

In the meantime, keep planning your builds, posting on social media using the hashtag #CumminsRepower, and keep the questions coming. See you all in the spring!

Very Respectfully,

Steve Sanders
Business Development Manager
Automotive & Enthusiast Segment
Cummins Inc.

Cummins Inc.
500 Jackson Street
Columbus, IN 47201


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Update on the R2.8 Turbo Diesel
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  #215  
Old March 8th, 2017, 11:07 AM
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Thanks for posting that !

Just got it in an email and came here to check
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  #216  
Old March 14th, 2017, 10:13 AM
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Have you looked at the 3550 instead of the r380?
I have a 300 tdi d-90, I am thinking of doing the same thing.

kim
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  #217  
Old March 15th, 2017, 12:07 AM
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No one make an adapter for the R380. They do have it for the NV3550, and then one to mate the LT230. I think that is the combo that most people are looking at. I don't know of an R380 in the works, but it wouldn't be too hard... The NV3550 is a great trans choice--I can't think of a reason not to do it.

+
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  #218  
Old March 15th, 2017, 08:04 AM
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meh...
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  #219  
Old March 15th, 2017, 09:23 AM
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Thanks Chris,
Talked to Advance Adapters and they said that maybe around June the will have an adapter pkg. set to go.

kim
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  #220  
Old March 15th, 2017, 11:39 AM
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this whole prospect is tough to swallow especially without pricing.

I am coming around to the LS swap given the amount of time and effort in both I am not sure that a cummins swap is exactly cost or time effective.

A well tuned 300 TDI should near 150bhp and 200#s torque, by the time you fit a VNT a full width intercooler and rebuild the entire engine you would still come in 4-5K less than a cummins swap from what I can gather without having to modify the drive train or trans tunnel.

I am all for a re-power kit if its in the 10K ballpark but I have the feeling that you'd be all in at double that. If we are talking LS money why not go with an engine that definitely has dealer support?
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