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I'd like to learn about this engine, google brings up pretty unremarkable information about it. Every little bit of information you know about them offload it in to this thread. Why does nobody ever transplant them in to anything? Have they got good tuning potential? I bring an offering of e28 pictures.     |
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Dec 26, 2008 11:16:24 GMT
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Why does nobody ever transplant them in to anything? Have they got good tuning potential? Mostly because they're huge, heavy, are expensive to tune and also just expensive to rebuild - as there's twelve of everything. Suitable applications are, at best, limited, due to the scale of the things. |
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Dec 26, 2008 11:18:55 GMT
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Very deep pockets required!  |
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Seth
South East
MorrisOxford TriumphMirald HillmanMinx BorgwardIsabellaCombi
Posts: 15,542
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Dec 26, 2008 11:26:06 GMT
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Follow your dreams or you might as well be a vegetable. |
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ChasR
RR Helper
motivation
Posts: 10,304
Club RR Member Number: 170
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Tell me about: Jaguar V12'sChasR
@chasr
Club Retro Rides Member 170
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Dec 26, 2008 11:33:01 GMT
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You don't need super deep pockets if you get a good unit. That is where the problem lies. They are a fine engine, with a great soundtrack, and lots of lovely smooth linear power, but there problem lies in the owners who had them after, for which I will explain now. To cut a long story short, it comes own to maintenance costs. I love it when people say to me that I should get a BMW E46 330i Sport Coupe and ditch my Peugeot 306 GTi-6. At the end of the day, tax is similar on both, as is MPG and probably insurance. BUT... many forget that is where the cheapness ends, and that a £30K sports car will still have high running costs, and that is the problem with the Jaguar V12. People will skimp on things, thinking 'but it is only' worth that much', the wrong attitude really when going about most cars especially a sports car, considering that you'll almost always lose money on a car kept in use for some time, plus mostly end up selling it for peanuts. If you can get a half decent V12 go for it. A far superior engine IMO to the ubiquitous Rover V8, which seems to be the bread and butter engine of conversions. Weight is an issue yes, but the E21 was a drifter's machine anyway right?  . |
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Last Edit: Dec 26, 2008 11:35:14 GMT by ChasR
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Dec 26, 2008 13:09:51 GMT
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I think the Jaguar V12 is a brilliant engine! I'm slightly biased (Ive had 3) but the fact remains that if it wasnt any good it wouldnt have won Le-mans a couple of times in the XJR-9, XJ220R and XJR-15! Also check out the TWR racing XJS from the '80s BTCC, they were unstoppable! Also the broadspeed XJC, 550bhp....never outqualified in any race...let down by oil surge due to lack of dry sumping and weak driveshafts!
It was always said you could get a manual XJS, put it in top (4th), turn the ignition key and without touching any pedals the car would move smoothly away until the engine caught, and then you could accelerate all the way to 145mph! Impressive stuff if you think how old the engine is!
I totally agree with chasr...get a good one and you've got it made (although avoid the Pre-HE...more power but 6-10MPG) but if you get one thats been neglected it's the same as any old car..It'll take time and effort to get it running right!
Mines been neglected by the previous owner...so far Ive replaced the plugs, leads, dizzy cap, rotor arm, vacuum advance, unsiezed the mechanical advance and rebuilt the dizzy, replaced all three temp sensors, air filters, oil filter, fuel filter, checked the compression, oil and water change, all the drive belts....and its still got an intermittant miss-fire!
But thats what makes old cars fun....
Phil
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Dec 26, 2008 21:04:23 GMT
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I think the Jaguar V12 is a brilliant engine! I'm slightly biased (Ive had 3) but the fact remains that if it wasnt any good it wouldnt have won Le-mans a couple of times in the XJR-9, XJ220R and XJR-15! The XJR9 was the only V12 powered Jag Le Mans winner. The XJ220C was a V6 derived from the engine in the MG Metro 6R4 Though the car was originally designed for the V12 before they ditched that idea) and the XJR15 only ever won races against other XJR15s. I'd echo what others have said about costs. If you must have a V12, would it not be worth looking at BMW or Mercedes units? They're newer, more powerful and lighter, though again farking expensive to screw big power out or even just maintain properly. |
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Dec 26, 2008 23:18:57 GMT
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I think the Jaguar V12 is a brilliant engine! I'm slightly biased (Ive had 3) but the fact remains that if it wasnt any good it wouldnt have won Le-mans a couple of times in the XJR-9, XJ220R and XJR-15! The XJR9 was the only V12 powered Jag Le Mans winner. The XJ220C was a V6 derived from the engine in the MG Metro 6R4 Though the car was originally designed for the V12 before they ditched that idea) and the XJR15 only ever won races against other XJR15s. I'd echo what others have said about costs. If you must have a V12, would it not be worth looking at BMW or Mercedes units? They're newer, more powerful and lighter, though again farking expensive to screw big power out or even just maintain properly. When you consider how old the Jag V12 is to the Merc and BMW- it's surprising to find that they are only a minor advance on the Jag |
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... the only injury I sustained was a bumped head when I let the seatbelt of without realizing the car was upside down  and that's not really the car's fault. |
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Dec 27, 2008 12:07:48 GMT
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brilliant engines!!
like a huge bike engine really as they love to rev, and are turbine smooth..!
however the engine's often mistaken for a fuel delivery pump as it can do a great job of draining the fuel tank in a very short time indeed........
ace motors get one!
si
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Dec 27, 2008 12:21:59 GMT
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my friends landlord has a works xj12(?) coupe. its a monster! but does cost the same as his xj220 for parts. one trackday cost £10000 for an LSD and an engine rebuild after it span the rope oil seal. does dominate any race he enters though  personally I can think of better engines but I can think of a lot worse too! 2woody was putting one into an omega ;D |
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Dec 27, 2008 13:42:46 GMT
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Here's a good use for a Jag V12, my mates trike.. ;D  It's in the process of having a new engine as the one in this pic suffered teminal water pump failure which killed the heads. We as also having a lot of trouble setting up the Holleys so the new engine is injected but using throttle bodies and individual coil packs.  |
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Aircooled is cool.......
But V8 is great!!!!!!
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[*]
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and that's not really the car's fault.
