| 403 What does an ignition amplifier do and what is the benefit of having one? This question was raised on a V8BB thread on rechipping an RV8. Alan Rennie responded. (Feb 15) Alan Rennie noted the amplifier increases the spark output delivered to the spark plugs. Members who have had an upgrade package comprising an Optimax ECU chip with a new ignition amplifier, new plugs and new Magnecor leads mention they feel the outcome is worth it - smoother engine, far more responsive through the gears and better fuel economy. Which part of that upgrade package leads to the improvements is not so clear, the Magnecor leads for example can make a useful contribution to smoother running.The amplifier module is located at the bottom of the distributor (see 4 alongside). Mike Howlett feels Chris Ho asks a perfectly reasonable question about the ignition amplifier. This doesn't apply to factory GTV8 cars, but to RV8s and Rover V8 engines with electronic distributors. The Lucas distributor used in these engines has no contact breaker points, but uses an electronic sensor instead. The signal from this sensor needs to be amplified to be able to trigger the coil low tension. On the original distributor, Lucas fitted a small flat amplifier on the side of the distributor body (see 4 above). This worked alright, but wasn't very powerful, and was prone to failure due to getting too hot. The A&R amplifier that RPi sell can be fitted remotely away from the worst of the heat and produces a bigger output than the original. The amplifier Mike |   See RV8 Repair Manual AKM7144ENG, Ignition, Repairs 2 . has on his MGBGTV8 conversion worked well for over 20,000 miles, the only drawback being the adhesive mounting which isn't up to the job! Simon Austin added a note on the V8BB thread that he had installed the remote amplifier on his RV8 some time ago (see the third link below) and feels the location of the amplifier away from engine heat is helpful. His amplifier came mounted to an aluminum bracket, not adhesive, which he feels would take a |  . major accident to dislodge. A key word search on the V8 website provides other useful links: Fitting an Optimax chip - RV8NOTE251 Rechipping an RV8 - RV8NOTE226 Fitting a remote ignition module to an RV8 Ignition amplifier in an MGBGTV8 conversion |
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