3B diesel, turbo or not?

Submitted: Monday, Apr 21, 2008 at 13:50
ThreadID: 56848 Views:25582 Replies:3 FollowUps:2
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Hi, we have a 3B diesel engine on a Toyota Coaster (converted as motorhome) and apart from an awesome engine, it lacks any power in 4th or 5th gear. As NSW is quite hilly you get quite a bit of arm training every time we hit a bit of a slope and we have to crawl up. Does anyone have any experience with giving the 3B engine a bit more guts? Is turbo the solution (at $3,000 a pop, yeaks!) or any other tips?
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Reply By: Member - DOZER- Monday, Apr 21, 2008 at 14:05

Monday, Apr 21, 2008 at 14:05
The turbo option will make it bearable to drive, the other option is a 14b motor from a dyna i believe, a 15bt from a newer coaster, or a 13bt motor from a mid wheelbase cruiser, which has a turbo on it already....now its probably easier to fork out 3 big than swap a motor, but buying a 13bt for 4 and it bolting straight in, plus selling your 3b for 2k might be another option...the 3b does like turbos, but wont go anywhere as well as the factory 13bt. or 14b non turbo
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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Follow Up By: asm00119 - Monday, Apr 21, 2008 at 14:33

Monday, Apr 21, 2008 at 14:33
Thanks Dozer. We had a look at trying to find a 13BT but I understand they were never sold in Australia and are very rare. I got offered a 14B but that seems to have only 71 kw against the 67kw of the 3B. So not a lot of extra guts.
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Follow Up By: Member - DOZER- Monday, Apr 21, 2008 at 15:31

Monday, Apr 21, 2008 at 15:31
The 14b is a direct injected motor and as such, is alot more economical, it also comes turbocharged as a 14bt in some trucks...the 13bt is an aussie motor in the bj73 and bj74 mid wheel base landcruiser, new coasters have 15bt motors...
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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Classifieds: landcuiser 200 vx/sahara 18x8 with grandtrek tyres

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Reply By: revhead307 - Monday, Apr 21, 2008 at 15:26

Monday, Apr 21, 2008 at 15:26
I understand your drama, I had a 3B in a SWB cruiser. Great engine, but definitely underpowered.

The stats on a turbo were very promising when i checked for myself, bringing it inline with a 1hz power rating and very good torque. Like previously mentioned 13BT if you can find one is a great option. Import wreckers are the places to look, as a number of these MWB cruisers were imported. Check 4x4 Trader mag or similar for the engine import ads.

I swapped my SWB for a v8 Hilux (big mistake) and if i had my time again I would definitely have turboed my 3B.

Jeff
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Reply By: Member - Matt (Perth-WA) - Tuesday, Apr 22, 2008 at 10:51

Tuesday, Apr 22, 2008 at 10:51
Dozer is spot on!!! The 13BT would be the easiest option and prob the most fruitful. The engine is definately in Aust and there are a few Landcruiser specialists around that would know where to find and for how much.

I would advise that the 13BT swap over retrofitting a turbo is ALWAYS a better option...there are usually quite a few differences in the engines designed for turbo and one you reto fit. Correct fuelling using the puff limiter and under piston cooling nozzles help the engine last!

If you need info on the engine and where to find one Check out Roothy on the 4WD Action website. He had his LC Milo re-engined with a 13BT by Pitstop 4x4 (I think)and Im sure they could assisit or give info.

All the best
Matt.
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