Thread: Isuzu 4bd1T in an Italian Defender 110

Originally Posted by big guy

To annoy the likes of you.

Why mate?

And have another read of Justin's post, he said nothing offensive towards you... just a little truth...

Dear All,

Thanks for replying first of all, I wish to go for the 4BDT1 (3900 c.c. turbocharged) as fitting a turbo to a 4BD1 is not in my opinion so simple, as the fuel pump would be "2" stage: stage 1 when the turbocharger is not boosting air, and stage 2 when the turbo build up pressure.
Anyway if someone has pictures of a 4BDT1 in his 110 they'd be very appreciated, ad I could roughly estimate if something could foul my LHD 110.
Regarding to the bell housing in the market is the same for 4BD1 and 4BDT1 ?
I'd keep my R380 but it seems that an old 4 speed gearbox from my 1982 Range Rover would be better.

More LAter

Marcello

Last but not hte least, I found a Isuzu NPR here in Italy with 4BDT1 and gearbox, that could be 6 speed.
The seller want € 800 for the whole truck, as the engine is in need of total rebuilding, is there any Isuzu spare parts company you would suggest me ?

Originally Posted by marcecooter

Last but not hte least, I found a Isuzu NPR here in Italy with 4BDT1 and gearbox, that could be 6 speed.
The seller want € 800 for the whole truck, as the engine is in need of total rebuilding, is there any Isuzu spare parts company you would suggest me ?

The advice I've been given is to use genuine parts from Isuzu.
Adapting the 6 speed to the LT230 has been discussed on here, and Dougal has some drawings too.
hopefully he'll chime in soon.

Originally Posted by marcecooter

Dear All,

Thanks for replying first of all, I wish to go for the 4BDT1 (3900 c.c. turbocharged) as fitting a turbo to a 4BD1 is not in my opinion so simple, as the fuel pump would be "2" stage: stage 1 when the turbocharger is not boosting air, and stage 2 when the turbo build up pressure.
<snip>
Regarding to the bell housing in the market is the same for 4BD1 and 4BDT1 ?
I'd keep my R380 but it seems that an old 4 speed gearbox from my 1982 Range Rover would be better.

<snip>

Marcello

Marcello

A couple of points, the Factory 4BDI-T in Australia seem to have their turbocharger out the side of the exhaust manifold (Left hand Side) right where your steering box is on a LHD Defender. So you may not he able to use the factory turbo setup, although you could use the turbo somewhere else with different plumbing. You may be able to put the turbo above the exhaust manifold or anywhere you can get the exhaust pipes and air intake pipes plumbed.

The Land Rovers factory fitted with Isuzu 4BD1 and 4BD1T all use the LT95 (Range Rover 4 speed) Lately a lot of people in Australia are using the R380 5 speed gearbox (Defender/Discovery II) modifying the R380 bellhousing.

Probably the best gearbox for a 4BD1 is an Isuzu gearbox - Dougal and others have close-coupled the 5 speed Isuzu, there are also people who have remote mounted the LT230 with an Isuzu 6 speed. Using the isuzu gearbox solves the problems of the adapter plate on the bell housing but moves it to the LT230.

Originally Posted by County3.9

Why mate?

And have another read of Justin's post, he said nothing offensive towards you... just a little truth...

I just can't handle the truth.

So I repeated myself, big deal.

I have other faults too. like leaving the clothes on the floor, sometimes I up-shift too late and would you believe it, I squeeze the toothpaste from the middle not the end.

Long live the 4bd1-- You really are a bearded pathetic clan of followers.

Ciao

Hi,As far as concerning the steering box of the servo boost in lhd Defenders, it seems that the turbocharger is still far from touching them.
I saw on U Tube a well done 4BDT1 conversion in a LHD Discovery II, so if I'm not totally wrong the engine could be dropped in a defender engine bay without "too much" troubles.
Regarding to the transmission I agree to keep the standard Isuzu gearbox, anyway I don't remember the gear' code number, but there's a transmission which has a big gap from 3rd to 4th, so it's not advisable for off road.
Anyway if someone is able to modifiy the R380 gearbox bellhousing, I'll keep it, as I like how it shift, and moreover I saw it a more straightforward conversion.

Flagg and Dranged on here both have R380 gearboxes behind 4BD1s. I think they both used LT85/Santana gearbox to Isuzu 4BD1 bellhousings, which are rare.