Full Version: What is RPM Redline?
the engine is an early 2.0L case with 2.7L pistons/cylinders for 2.5L displacement. E cam. getting a shift light so that I don't over rev engine but I have no idea how to program it. what is an appropriate red line for this engine?
it depends a lot on how the heads are built
If they are stock heads, with stock-spec springs, and stock weighted everything...... then I'd go with stock redline for those heads.
If they are stock heads, with stock-spec springs, and stock weighted everything...... then I'd go with stock redline for those heads.
The engine RPM redline is just under the rpm when your engine implodes. My recommendation is to rev the engine until it seizes. The redline is about 300 RPM below that point. 
"If you don't ask, how are you ever going to learn"
Seriously, the redline is based upon the engine geometry, heads, valves valve springs, etc, etc, etc. Not easily ascertained form the information you have provided thus far.
"If you don't ask, how are you ever going to learn"
Seriously, the redline is based upon the engine geometry, heads, valves valve springs, etc, etc, etc. Not easily ascertained form the information you have provided thus far.
QUOTE
it depends a lot on how the heads are built
If they are stock heads, with stock-spec springs, and stock weighted everything...... then I'd go with stock redline for those heads.
If they are stock heads, with stock-spec springs, and stock weighted everything...... then I'd go with stock redline for those heads.
add
QUOTE
E cam
7k
The valve train is usually the RPM limiting factor. To increase redline above stock you would need to go with heavier springs and/or lighter valves and keepers. Valve float is what gets you into trouble with piston to valve clearances.
With E cams, shift light 6,800, limiter 7,100.
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