Jag V12 ECU Mods

[Brian Knowles]

>> A thread on another list describes the results of having a stock
>> Jaguar V12 ECU modified by an outfit in the UK.  The net of it is
>> that very significant performance improvements were realized.
(snippage)
>> These engines have 12 cylinders and displace 5.3 liters.  They have
>> one injector for each intake port.  Could one not take a suitable
>> ECU, say from an 8 cylinder GM product, and work out a replacement? 
>> Use the GM sensors.  Somehow drive 12 injectors instead of 8. 
>> Account for the net difference in displacement.  Now you have a
>> starting point.  How feasible is it to fine tune from there?  Is
>> this approach, overall, more risky or more expensive than the option
>> of paying a specialist for a modified 'stock' ECU?
>> 
>> I would like to hear the lists collective thoughts on this idea.
>
(more snippage)

The first thought that comes to mind is that the Jag V12 weighs within 10 
lbs of a 455 Old engine.  The Olds has more power, more torque, is less 
maintenance-intensive, and WAY cheaper to buy bits and pieces for.  For 
instance, last time I looked, a distributor cap for the 5.3 litre V12 ran 
$75, which is 'bout $60 more than Pep Boys get for the Olds part....  
Many of the Jag engines in California are afflicted with Lucas FI, which 
is, of course, illegal to remove, unless you remove the V12 along with 
it...

Brian