Things that cause an Early Rev limit. - Too soon Junior

[dan10101]

Other that the standard fuel cut rev limiter, what are some things/sensors that can cause an earlier than expected rev limit? The dyno sheet that came with the car shows it revving to 6800 but it cuts out at 5200 in 1st gear.

Coolant Sensor - engine thinks it's cold. (my OBDII says it 190) Are there 2 coolant sensors?
VSS - Speed says it's too fast when it isn't
Gear based speed limiter (same as above?)

Here's what I'm working on.
2004 LS6 crammed into a Porsche 914 4 speed manual.
2001 Camaro 411 ECM.
Speed Density Tune, (no MAF)