Thread: d24+t?
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Old 01-30-2020, 11:31 PM
ngoma ngoma is offline
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Join Date: Nov 2009
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Yes adding the turbo will completely change the driving experience. Including what you are wanting it to do.

Really should try to get the IP with the LDA (the flying saucer shaped device on top).

The LDA allows the IP to be set for more fuel (required during turbo boost condition) to generate more power under boost conditions, but contrary to popular opinion, the LDA cuts the extra fuel in all conditions except when under turbo boost, incrementally ramping up the fueling as boost increases. This helps overall fuel economy, cuts excessive soot and emissions, and probably keeps the motor oil from becoming overloaded with soot.

With turbo but no LDA, in order to see increased performance from the added turbo, you will have to turn up the fueling which will generate loads of black soot in all conditions except under high turbo boost/ high RPM condition.

This paper talks about the LDA, a little less than 1/4 the way down the page:
The 4-and 5-Cylinder Turbocharged Diesel Engines for Volkswagen and Audi

That same paper shows the injectors are the same between the NA and +T engines, the difference is the POP settings, 155 bar for the turbo, compared to 130 bar for NA.

The oil pan mod is talked about in these forums.

Many have used a simple cone-type air filter because the original air filter box no longer fits.
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1985 744 gle d24t
1985 745 gle d24t
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