SCT Tuner not programming rev limits and shift points
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Junior User
Joined: Dec 2006
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SCT Tuner not programming rev limits and shift points
SCT Tuner not programming rev limits. So the stock 6.0 Excursion has a rev limiter at about 3700 stock and shifts around 3500 on wide open throttle. When I installed the SCT tuner Xcal2, the rev limiter cuts out around 3500 and at first I thought it was the transmission but have now found out it is just the rev limiter cutting it out before it hits peak power and can shift. I have tried to raise the rev limiter to 4500 RPM just to see what would happen and it does the same thing and cuts out at 3500 RPM and I can't figure it out for the life of me. It seems that something is interfeering with the install or something but it has done it with 2 different tuners. The power is great but I have to really shift way prematurely to get it to shift to the next gear without popping and snapping from the rev limiter. Has anyone had a similar situation and know the problem?
Resident smarta$$
Joined: Aug 2006
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From: Oaks,PA
I don't think you'd want a stock motor shifting at 4500, just my .02. I *think* the peak HP/TQ starts dropping off at around 3k or so, can't remember exactly. Maybe somebody else will chime in.
BTW peak TQ is @ 2k and peak HP @ 3300
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