The only solid state replacement limiter that completely duplicates all of the OEM limiter's functions!
Which cars use the IVR4?
Installation Manual for IVR4 Limiter
Buy IVR3 Which cars use the IVR3?
Installation Manual for IVR3 Limiter
Real Time Engineering has a new solid state limiter that will replace the original mechanical limiter on the back of your dash. This new limiter has many advantages over the original limiter, and also has advantages over the linear regulators that hobbyist have been using as well. The biggest advantage is that our limiter doesn't have a mechanical set of points and a heater wire that can break and fry your gauges (which is what the original mechanical limiter had). This style limiter is also used on the 71-4 Rallye B-body dashes.
- Our limiter exactly duplicates the original limiters function by slowly switching 12V on and off.
- Our limiter has a built in polyfuse which protects the limiter and your wiring from short circuits on the output of the limtier
- Our limiter constantly looks for short circuits on the output of the limiter and will switch itself off if a short circuit is detected. When the short is removed, then the limiter starts working again.
- Our limiter has a built in diagnostic LED that blinks when the limiter is on, helping you see that you have power to your dash and that the limiter is operating properly.
- Our limiter has a warm up time at turn on, same as the original mechanical limiter. This means that your gauges will come up to the proper reading very quickly.
- Our limiter is always outputting a constant 5V average, no matter what the input voltage is (Within the range of 9V to 18V). If the input voltage goes too high or too low, then the limiter shuts off.
Magazine articles about our new solid state limiter
- Limiter Article As Seen In Mopar Collectors Guide, Feb 2008
- Limiter was in Top 10 Aftermarket Parts for 2007 As Seen In Mopar Collectors Guide, March 2008
- Limiter Article As Seen In Mopar Action, April 2008
Don't See Your Car Listed
There are a few cars that don't use external limiters, but instead have the limiters built into one of the gauges. The cars that I know about that do this are:
68-74 Abody Rallye cluster cars
older imperials with round style cluster, not sure of the year.
Note that RTE can disable these old limiters and install an external limiter on these cars. RTE also has complete instructions here on how to do this conversion yourself:
Installation manual for replacing limiters built into the fuel gauge: media:InternalLimiterFixUsingIVR3.pdf
RTE also has available limiters that will work in Mustangs and other Ford vehicles.