DIY Modification to Improve Performance and Fuel Economy of AJ16 and AJ6 Engines
Dear All,
I've just has another batch of brackets made taking the total past 450. If anyone wants one, then please contact helenstodart@gmail.com
I've just has another batch of brackets made taking the total past 450. If anyone wants one, then please contact helenstodart@gmail.com
Just thought I would chip in and say that this is a great mod, my uncle bought it for christmas for me, and all I can say is that the difference was immediate! Fuel economy went from 25.8 to 27.3 immediately, and the throttle response was greatly improved.
Fantastic, and well worth doing
Fantastic, and well worth doing
US gallons are 20% smaller than UK gallons. 3.78 litres vs 4.54L
Hi Raymond47,
I think that you have included some text from a very old post in your reply, that indicates that we are currently out of stock of brackets and will not have any more until 4th October. That post must at least be from last year, as it is a long time till October, and we currently have brackets in stock.
To answer your question, most owners report a 1-2mpg improvement in average fuel economy, if your driving style remains unchanged.
I think that you have included some text from a very old post in your reply, that indicates that we are currently out of stock of brackets and will not have any more until 4th October. That post must at least be from last year, as it is a long time till October, and we currently have brackets in stock.
To answer your question, most owners report a 1-2mpg improvement in average fuel economy, if your driving style remains unchanged.
I've had this mod on my 4L X300 for over 3 years now. I don't measure fuel economy around town but on long trips economy it's up by almost 2mpg. Can't say I've ever measured any performance times but it certainly feels a bit quicker. If I ever buy another AJ16 engine I'll buy another bracket
I've finally installed my bracket on my XJR6, and it immediately feels much more enthusiastic around the city. Haven't taken it on a long drive or pushed it hard, but even with these most basic changes I'm very happy with it. I already have a cone filter pod so in terms of bolt-ons it's all set.








