[Dougal]

Why a T4 turbo flange? What useful turbo uses that size these days?

 

[Dougal]

Stock Turbo on JD4045

What is it? Will it be suitable for road use?

 

[Dougal]

Hard to Say, that's the exciting part

Post up a photo of the data tag on it.

 

[Dougal]

Here's your Borg Warner: https://www.mddistributorsstore.com/borg-warner-turbo-systems/318615/new-turbocharger

It's a large non wastegated turbo for low boost. It's gonna be lazy and slow on-road.
I'd fit a T3 flange and find a Holset HX30.

 

[Dougal]

T3 is the most universal turbo flange for this size engine. If you are fabricating I would fabricate to T3 and run an adapter to T4 if you're bolting up the factory turbo.

Future proofing.

 

[Dougal]

Yeah I've seen these engines in gen-sets.

 

[Dougal]

UPDATE, the SS 90 degree elbow I have ordered is T4 to T3 , so the HX30 turbo,s are not that easy to find, so I pulled the HX35W of the 24V Cummins I have for sale, and
will use that, together with a 30 percent increase in fuel. I should have some pics early next week.

Thanks , Steve

HX35 is too big for these engines and won't make much boost until very high rpm. The HX30 is a lot more active.