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-   Jaguar Engines & transmissions (https://www.jaguarforums.com/forum/jaguar-engines-transmissions-47/)
-   -   Quick question on V12 fuel injection (https://www.jaguarforums.com/forum/jaguar-engines-transmissions-47/quick-question-v12-fuel-injection-37365/)

JameyXJ6 05-28-2010 04:29 AM

Quick question on V12 fuel injection
 
When did they switch over the S-types from carbs to fuel injection? I'm apparently either a glutton for punishment, a fool, or both because I've decided to sell my newly acquired XJ6 and start searching for an XJS. I'm hooked...God help me!

Enthusiast 05-28-2010 07:03 AM

S-types never had carbs.....Do you mean the xjs? If so, you are in the wrong spot mon ami! :)

Enthusiast 05-28-2010 07:03 AM

I see that they moved this thread. LOL. :)

Cadillac 05-28-2010 09:52 AM

I suppose he might mean '60's S Type Models

Doug 05-28-2010 12:39 PM

The XJS V12 had fuel injection right from day one

Cheers
DD

JameyXJ6 05-29-2010 08:04 PM

Okay, my bad.
I'm new to the Jaguar world and I'm still not familiar with all the models and classifications. I wrongly assumed an XJS was an S model. On the positive side, I ain't dead yet, so there is still plenty to learn!
I've found an 83 XJS convertible with only 29,000 miles on it. Needs paint and probably electrical work. I won't know until I've picked it up, hopefully on Tuesday.
I thought I'd read somewhere the earlier XJS V12 was carb'ed, so I was wondering when they switched to fuel injection, but you say they've always been fuel injected?

JameyXJ6 05-29-2010 08:08 PM

sorry, hit button twice

Doug 05-29-2010 09:42 PM


Originally Posted by JameyXJ6 (Post 208382)
Okay, my bad.
I'm new to the Jaguar world and I'm still not familiar with all the models and classifications.


Off with your head ! :-)



I wrongly assumed an XJS was an S model. On the positive side, I ain't dead yet, so there is still plenty to learn!

An older XJS will keep your learning abilities in top form.




I've found an 83 XJS convertible with only 29,000 miles on it. Needs paint and probably electrical work. I won't know until I've picked it up, hopefully on Tuesday.


A lot of electrical problems on the older Jags really aren't that tough to solve if you like to tinker and have some patience. Poor grounds and dirty/loose connectors/contacts are the usual culprits.

New paint, though...wow....that could be thousands




I thought I'd read somewhere the earlier XJS V12 was carb'ed, so I was wondering when they switched to fuel injection, but you say they've always been fuel injected?

They started building the XJS in 1975 and they were fuel injected. That's the same year the the V12 sedans were upgraded from carbs to fuel injection as well




Cheers
DD

JameyXJ6 06-03-2010 05:30 AM

Thanks for the response, I've got my work cut out for me already!

locke 06-03-2010 03:05 PM

newguy here, I have a 1976 XJ12 and am going to build this car up to get decent gasmileage. Some of the things I hope to do is use 2 taurus ignition coil packs, a megasquirt ECU, a 700r4 transmission, and maybe some kent cams, (where do I get valve springs and retainers btw?), polished ports and intake manifold, a homemade 2.5" exhaust, and K&N air filters. Can anyone tell me the likelyhood of what kind of projected mpg would be (assuming I drive like a grandma.) I'm just trying to get 20mpg at best and want to rock my V12 all day long.

JameyXJ6 06-03-2010 10:49 PM

Locke, I think you'd get a better response to your questions if you started a new thread. Sounds like you've got big ambitions though!


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