Engine Specific Info and Questions > Diesel Swaps

Which diesel for my Toyota!

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Tmarkle:
So my Toyota pickup currently has a Chevy small block 350 with a TH350 auto, but the other day the 350 developed a nasty rod knock. I want to replace the 350 and the auto with a diesel engine and a manual transmission. I know that the 350 will have more power than any of the diesel options that fit in the little truck, but I'm sick of 8 mpg and I'm a diesel guy! So I'm here for some opinions on what engine I should use.

1. TDI, preferably an ALH or AHU, although a BEW or BRM would be cool also. I would use the Toyota W56 or R150F transmission with this engine. I'm hesitant with the wiring.
2. M-TDI, I like the idea of very little wiring here, but the cost of an M-TDI pump is a bit of a put off.
3. 1.9 AAZ, with some basic mods will this have plenty of power to pull the pickup fine at highway speeds?
4. 1.6 TD, the only reason I'm considering this is I already have an 1.6 NA block and a new 1.6 head, but can I build the 1.6 with a turbo to have enough power to easily move the truck and still be reliable?
5. 4BT Cummins. Plenty of power, but will probably eat a Toyota transmission and transfer case. I'd probably have to use an NV4500 and a passenger drop NP205. Also a very expensive motor to buy.

The pickup is currently sitting on a 3" body lift, a 3" suspension lift, and 35" tires. I'd like to remove the body lift and put 33" tires on if I use a VW diesel. I have a decent knowledge of both the VW diesels and the Cummins engine.

libbydiesel:
Just my opinions.

1.  ALH.  The block is stronger than the AHU and they must have changed the metallurgy as they just don't seem to wear.  200,000 miles with no wear in the cylinders...  BEW-BRM have cam issues and can't be run mechanically.

2.  Cost of the mTDI pump?  What?  They are similar cost to the electronic pumps in similar condition.  Sell your e-pump and buy a similar condition LR300 pump.  Then sell all the other useless crap (ecu, harness, MAF, etc...) and come out ahead.  Then spend the extra time you would have spent figuring out the harness just... just sitting back enjoying life.  Spend the extra time you would have spent getting towed or in limp mode just driving.  :-P 

3.  AAZ is ok.  You can have similar overall power (lower torque but higher revs) but will have significantly worse fuel economy.  They also run hotter and tend to wear out faster.

4.  I wouldn't.  350 to 1.6TD might be a tough pill to swallow - all the downsides of the AAZ mentioned above, along with 20% lower torque/power.

5.  I can't really say other than - holy crap those engines are heavy, low-revving, have a huge oil capacity. 

Ok.  ALH it is.  :)   

Tmarkle:
Where could I get a Land Rover pump in the US? I was under the impression you had to gather all the parts to build an MTDi pump yourself, or send it to Giles, which I would love to do since he builds awesome pumps. I've got a local injection pump shop that is awesome, they are an authorized bosch dealer, I wonder if I gave them the LR300 pump PN they could order one for me. I see that Quality German Auto Parts has a complete ready to go MTDI, but he wants 5k for it :o He is also where I considered ordering an AAZ from. His prices seem awfully high but I guess some do come with a 3 month warranty.

libbydiesel:
You can get used LR pumps off ebay.uk.  There are online sites that will sell rebuilt or new ones and ship to the US.  I haven't dealt with William Smith personally but he is in the UK and has an ad in the classifieds for selling used LR pumps.   

I would not recommend getting an mTDI pump from Giles.  Last I heard he was charging a couple grand plus three cores for an mTDI pump that would perform similarly to a stock eTDI.  The stock LR pumps will outperform an eTDI and are available rebuilt or new for 1/2 that price with no cores required.

Tmarkle:
I'll be looking into that. I found a few LR300 pumps on Ebay UK. How hard is say, 150hp out of an mTDI? I'd like for the truck to still have plenty of get up and go. I know that not matter which of these I go to they are going to feel weak compared to the mild built 350, but what's better than diesel power, right?

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