AMF Query

[lestershaw]

i have noticed that two of my Xjrs have different amfs
the 1999 model has the number LME1620 BB and is an unblocked version with a tonsil like sensor in the middle
the 1998 models have the number LME1620 AA and is blocked with a kind of propeller shape
does it matter if i swap them over, i presume the BB is the later, but does that mean better.
i was changing the cone filter which it had on it (the 1998) and took the original airbox from the 1999 one when i noticed they were different.
thanks in advance.
i havent noticed any difference in performance or sound while changing back from the cone filter to the original box filter like it was suggested i would
lester
sorry one more
i have two XJRs both have the supercharger pulley mod, one has the top pulley done, and the other the bottom pulley. is there much benefit of having one car with both pulley mods, and would i have to upgrade the supercharger cooling?
Thanks
Lester

[NormanD]

I take it this is what you meen, see photo below

They aren't interchangerable unless you have a little box I've had made
The later one will let through twice as much air

Do coantact me for more information and pricing

[lestershaw]

Norman, YHM
Lester