Turbo Upgrades for the GUIV TD42Ti

[mudski]

FWIW had a few stock TD42T’s and 95C up a Warrandyte hill known is very usual, even in winter. They’ll always come back down to 85C on the Yarra downside pedal off. Personally never have stressed too hard on these kettles until 105C and climbing further, uncontrollably.



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I have been told on many occasions Mark that its still well within its limits. But when its run a certain way for so long, then all of a sudden its different, even still within spec, its get me thinking why. Last January's trip back from Merimbula the kettle was seeing 115c without much effort when climbing some hills.
However regarding the 3071 Garret. Its had me thinking since the tune. I notice more that in 4th gear at 6k's the motor's rpm is too low for the motor to produce enough boost to get going. Its ok when your coating along a flat road. Hit a hit or slight incline and you fell the need to down shift. Different turbo, or at the least a set of 4.3's would correct this. But 4.3's is what I had, and 1st gear was almost non existant. Hence me going to 4.11's. So a differnet turbo is the fix. But I wont be doing that so the 3071 stays.