We have been chasing our tails a bit with the fuelling on
the TT for some reason we weren’t getting enough fuel into the cylinders as we
expected which was holding the performance back.
We had used bigger 550cc injectors, added a second inline
race fuel pump, an upgraded in-tank pump a new race fuel filter, but still it
was running too lean?
Maybe it was the Injectors? Since they were all working the
same on each cylinder they didn’t appear to be faulty. So the thought was - clogged
injectors?
Time to test the injectors..
On removing them I thought I’d double check the serial
numbers, and to my surprise they were the wrong ones! We had ordered Bosch
550cc injectors for the TT and we had been sent Bosch Standard upgraded ones at
around 260cc (0280158315)– same price, plus they look the same!
Wrong number!
Explains a lot..
New 550cc (0280158117) fitted today so it’s back to Shark Performance for
another Dyno run!
Correct 550cc ones..
