Thread: well we have done it, bought a 91 RR for conversion

Thanks for the replies so far. Well it does seem that the 4BE1 is the preferable motor from what I have read, but it will depend what we do find out there at the right price.

I do need to know if it is as easy to Turbo the 4BE1 as compared to putting a turbo on 4BD1.

Do have to replace an axle on our small car trailer/box trailer. Lost a wheel & brake drum with it, and the hubs and bearings are from a 1930 holden according to a wrecker where we chased a new brake drum. Our old drum had the centre riveted into it.

So new axle is going in, so will not be chasing a Isuzu Motor/gearbox for a few weeks, until we do have the ability to collect it in the trailer.

But am putting feelers out now-- My brother lives west of brisbane, and has a trailer, and his son, my Nephew, did his apperentiship reconditioning motors including 4BD1's. Sorry guys he no longer works there, so I cannot be giving out his contact details. I hardly see my Nephew anyway, but hope he may have contacts on the Motor.

Does the RR have enough room for the gearbox. If not does a 2 1/2 inch body lift give us enough room??.

Thanks in advance for your replies.

Originally Posted by JohnF

I do need to know if it is as easy to Turbo the 4BE1 as compared to putting a turbo on 4BD1.

Yes, exactly the same. Like the non turbo 4BD1, the 4BE1 likely won't have piston squirters. This means you can't be as brutal with your tune as a factory 4BD1T. I run my factory 4BD1T at 750C EGT's and haven't had a problem yet.
Also being shorter stroke, expect to have a bit less pull at very low rpm.

Originally Posted by JohnF

Does the RR have enough room for the gearbox. If not does a 2 1/2 inch body lift give us enough room??.

Thanks in advance for your replies.

Yes.
I have no body lift and a shaved MSA shifter cover (it is very close on the reversing switch and hump to the bodywork under the heater box). I have a switch which was removed and the hole plugged to help it fit, I suspect it was a neutral switch. A 1-2" body lift will make access a lot easier and also make the rest of the swap easier.