Andy Bates at AB Performance has sent me the mounting plates for the CBR1000s intake trumpets and extenal injectors. I’ll use the lower plate (pictured here) as the base for my modification to the cars airbox. I was going to use the upper plate as well but when I weighed it it was close to a 3/4 of a Kilo. The upper plate
only supports the injectors, but these are already supported by a casting fitted by Mr Honda to the original plastic airbox.
I figured if I could mount the injector rail on some aluminium standoffs then I could achieve the same for very little weight gain. Remember that this is on top of the engine and very high in the car so all weight lost here is especially important.
So after much measuring to try and ensure I got the injectors properly centralised on the trumpets I made these standoffs to hold the injectors at the correct seperation from the mounting plate (90mm measured from plate to tip). I’m pretty pleased with it considering I only made it using hand tools, a bench grinder and a drill press. plus is only weighs a couple of hundred grams and doesn’t restrict the airflow.