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Post by jayceenz on Feb 23, 2009 18:43:26 GMT 11
Hi to all. I've now blown three engines in 1 year all due wrong advice and knowledge around the effects od faulty EFI injection pump and systems. Seems to me I would rather have a decent petrol engine in the truck that does not have the stresses of high compression and turbo etc. Mine is a '96 Plaisir. Truck is mint and too good to write off. So questions I'm really asking is has anyone else done this before? Some earlier posts suggest the Holden V6 would be a better replacement than the Isuzu V6 petrol. Opinions would be appreciated. I do not require the gruntiest truck in town, but it does need to tow a trailer ( 6-700kgs) over steep hills reliably. I would need to know what motors would be better suited. It also occurs to me that there could be challenges with regard to the T.O.D. features and other computer controlled systems. Any constructive ideas would be appreciated, or point me to earlier projects.  |
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Post by geeves on Feb 23, 2009 19:49:53 GMT 11
Holden v6 has been done many times and as the normal course taken is to use the Holden auto matted to a hilux transfer case the torque on demand issues disappear as well. If you use the better ecotech engine you need the complete loom from the donor car as the ecotech computer talks to the ignition key so its either use loom and key or have a computer nut make an emulator.Another option might be a Lexus V8 but although theres one in the pipeline its miles from complete and the motor is only part of that project Next months 4x4 action has an article on a Chev LS1 conversion into a bighorn but dont know more yet. There would be a similar amount of work in both v6 engines so if it was me I would go holden even if only for the extra 600cc
What about fitting an earlier non efi engine? This will avoid certification but dont know if the TOD computer talks to the engine computer so you might still have issues although a good read of the manuals might help here.
good luck
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Post by jayceenz on Feb 24, 2009 19:02:10 GMT 11
Hi Jeeves, I'm interested to see about the LS1 conversion.If it's a Christchurch job I may have just blown the original Diesel out that truck. I have seen one of those conversions here and it is just a rocket!!. I've thought of a non-EFI engine and the motor I have is from one of those. However the EFI system mounted on the injector pump also apparenty controls the transmission shifts. ( So I was told by the engine fitters ) They had to get a local diesel pump expert to build all the EFI stuff onto the ono-EFI pump and also had to fit the speed sensors into the front casing area to make it all work. Anyway it didn't last long, about 6000klms. I'm still trying to find more info about engine swaps into the Bighorn, and other options such as replacing the truck with another make.... dont want to though.
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Post by geeves on Feb 24, 2009 20:02:49 GMT 11
Engine swaps are rarely as straightforward as they should be and can result in the pulling out of a lot of hair on the way. I know someone up here who took an existing chevy 350 out of a cruiser and fitted a LS1 It goes great now but his truck was in various engine fitters for 6 months. (he ended up sacking the company that started the job) Turned out the aftermarket computer had an intermittent fault.
Before committing to that route get a price on a full recon of engine and pump for comparison. Expect an engine swap to cost between 2 and 3 times the cost of the engine and box if you do most of the work yourself This means that buying a low mileage crashed Comadoor for 4000 and selling 1000 of unwanted parts will give you a total cost for the project approaching 9000
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