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I thought after having a Dtronic and a mandrel 2.75 inch exhaust nothing more could be done for the old Prado 90 1KZTE.
But no!
After noticing some acceleration problems at low revs I was made an offer I couldn't refuse by the guys at AMMS (Roo Systems). They run the truck up on the dyno with the Dtronic then wack in and tune a Roo Systems unit and show me the results. If I decide not to go with it all I am up for is the dyno time.
First report was the the fuel/air was too lean and I wasn't getting enough fuel at lower revs which was probably due to the larger exhaust.
After some tweaking it was all done and I was blown away. Over 20 HP more at the rear wheels on the max setting!
Put it back a few notches and it pulls away without a thought, tows the camper trailer like it isn't there. Much easier to drive.
But no!
After noticing some acceleration problems at low revs I was made an offer I couldn't refuse by the guys at AMMS (Roo Systems). They run the truck up on the dyno with the Dtronic then wack in and tune a Roo Systems unit and show me the results. If I decide not to go with it all I am up for is the dyno time.
First report was the the fuel/air was too lean and I wasn't getting enough fuel at lower revs which was probably due to the larger exhaust.
After some tweaking it was all done and I was blown away. Over 20 HP more at the rear wheels on the max setting!
Put it back a few notches and it pulls away without a thought, tows the camper trailer like it isn't there. Much easier to drive.
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