I have 2003 C-5 that I have put a LS2 90mm throttlebody on, is there somewhere in hp tuners to reporgram the computer so it knows it has a 90mm instead of 78mm. That way when I start adding air to the AIR Flow tables it adjust accordingly.
I have 2003 C-5 that I have put a LS2 90mm throttlebody on, is there somewhere in hp tuners to reporgram the computer so it knows it has a 90mm instead of 78mm. That way when I start adding air to the AIR Flow tables it adjust accordingly.
no, there is no need to tell it what size TB you have on there, other than that your ETC scalar may be off for idle now.
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
ETC area Scalar is what I thought it was. I knew it wasnt going to make a big difference if any. Just wanted to give it a shot. The stock # was .0255
and for a 90mm it should be about .0120. for anyone else who is curious.
Thanks1
It all depends on the TB and the open area of it. Most tend to be 0.018-0.022 from what I have seen. This is only for idle control as well and nothing else.
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
yeah my .0120 was too much and the car wouldnt even idle so I just put it right back where it was.
I tried that, my car would not even idle. But when I used 0.340 it idles PERFECT.Originally Posted by fast00ss
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