I installed an explorer TB and kept my stock tps sensor. I hear the voltage should be around 0.9 but which wires do I use to test this? also, i noticed the stock egr plate between the TB and intake is smaller than the TB, do people port this piece?
i would definatly open up the EGR spacers hole. did you not a buy a matching spacer for the TB?
buying a bigger TB and still running the stock spacer is useless. the bigger TB will do no good if the air is still having to squeeze through the stock EGR spacer. its like not even upgrading the TB at all.
sort of like putting 2.5 inch exhaust and leaving stock 2.25 tail pipes. the system will only flow as good as its weakest link.
What about the internal diameter of the upper intake behind the EGR spacer?
Do they make 65mm egr spacers? I'd rather not grind it out, sounds like a pita since all i have is a little dremel.
i'd open that up also.
when i had my tmoss ported lower with my old combo. i used a stock upper. i just opened the stock upper up to match my 70mm TB, and blended it back as best i could... 10X better than having a step for the air to hit and cause turbulence which slows airflow.
the stock intake goes from a circle and smashes into a tall rectagle to clear the middle bolt holes holding the upper down. not much you can do with a stock upper unless you can do besides work on the TB inlet side and port match the upper-lower holes, or you can cut it apart and port on it and weld it back together. but according to Tmoss, the stock upper isnt really a restriction and works well with a ported stock lower.
upgrading a TB on a stock headed, stock intake stock MAF car isnt going to do much, first off the stock MAF is smaller than a stock TB, even if you had a bigger MAF and TB, the stock intake and heads are the real choke points before the TB. but it sure does look like the stock maf meter is a big choke, its pretty small.
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