Re: TDI Vierzylinder für den LT?


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Geschrieben von Chris am 18. November 2007 09:55:21:

Als Antwort auf: TDI Vierzylinder für den LT? geschrieben von David Marshall am 18. November 2007 03:10:19:

Hi there, welcome to the forum!
I am interested to know how your LT came to Canada. As far as I know, there never was a LT1 Version that met northern american standards.
Anyway, concerning the engines, I think the 5-cyl. engines would fit best, but if these were not sold in Canada, that's not much help. Even if someone would ship you such an engine, you would have trouble with spare parts later on. I think the only 5-clinder engines sold in North America are the old Audi engines in the 1980s (with and without turbocharge) and the 2.5l 110kW engines in the Golf/Jetta Mk5, but all these are for gasoline and not Diesels and maybe not too good for your purpose.
About the 4-cyl. in general, one of us asked Mr. Sülzer (an enineer who first convertet the LT to 4x4 bevore VW themselves did) about that. He said that this would be a problem, because the gearbox was not made for the strong torque. Especially a 4-cyl. engine would deliver a stronger pulse with each ignition than a 6-cyl. engine and the gears wouldn't stand these pulses very long. But as long as nobody tries it out, we will not know if that really is the case, so maybe you just go ahead (an maybe put aside a new gearbox just for spare). Maybe use a higher flywheel mass and hope that it works out.
The Pumpe-Düse engines themselves are not counted among the best that VW build, there were some versions that are known to always get some problems. At least in Europe they are not sold any more, the new models have common rail injection.
Anyway, a modern Tdi-engine has a control unit that waits for signals of all kinds of sensors all over the car, that the LT1 cannot deliver, otherwise the engine will run in some kind of emergency mode or even not at all. So it will be quite a challenge to install the electric system an the sensors or at least fake them properly.
Sorry I could not help you much with your problem, we are all just starting to think along these lines about Tdi-engines in the LT but so far I have not seen a good solution jet. But maybe I gave you some ideas to think about.

Gruß Chris

lt-ecke(at)motoer.de




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