Mazda3 2.5T JB4 Mazda3 Development

dynamho

Member
:
02Protege 06RX8
:
17M6GT 21CX5sig
What about transmission shift points?

Except in manual mode, the tuned fattened power band can't be fully utilized without modifying shift points to match the revised power band.
 

Terry@BMS

Authorized Vendor
What about transmission shift points?

Except in manual mode, the tuned fattened power band can't be fully utilized without modifying shift points to match the revised power band.

We just let it shift itself, makes more power to redline with the JB4 installed as dyno reflects.
 

dynamho

Member
:
02Protege 06RX8
:
17M6GT 21CX5sig
We just let it shift itself, makes more power to redline with the JB4 installed as dyno reflects.
Yeah, the curves look good.

During WOT pulls, does it shift at stock shift points or does it "listen" to the enhanced powerband and shift at higher RPMs?
 
:
CX-5 2017 GT AWD
Terry@BMS
Will my car pass the annual NY inspection with the JB4 installed? Do I have to take it out during annual inspection? The JB4 should come standard with the M3TH, lol. Just makes your M3TH go zoom-zoom. By the way I had a pretty hard timing taking out that MAP connector. Took me almost 30 minutes and a sore right thumb. I almost gave up.