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Have just had United Fuel Injection in Perth fit a 3'' mandrel bent exhaust Hi Flow the turbo and fit reconditioned injectors on my 2001 4.2TD (no intercooler) and set up on the dyno.
Result was increase from 71kw (96hp) at rear wheels to 114kw (155hp) and increase from 294Nm of torque to 355Nm.
The torque curve has also flattened out considerably.
Apparently the gauze filter on the top of the IP was partly blocked so that would have contributed.
Did a seat of the pants test on a fairly steep hill nearby, pre mods standing start topped hill at 90km Hr post mods 110km Hr.
Fairly pricy exercise and yet to tow our caravan which will be the ultimate test but pretty happy at this stage.
No noticeable change in engine temp.
One problem was that the turbo drain pipe no longer lined up properly with the sump inlet pipe with the result that the connecting hose is barely long enough to fit over the belled ends, potential for hose to slip and drop engine oil.
Just needed longer oil hose to fix.
Problem with that is hose is 22mm or 7/8'' ID and that is hard to find and very expensive when you do at about $70 per foot (neoprene).
Hope that helps.
Briandon
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