Engine swap

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Jan 30, 2024 | 01:43 PM

#21

Mguar

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Quote:

Originally Posted by Peter3442

My comment related to how the tubes were joined together, which is what we were discussing, not their cross-section. Brazing and bronze welding were well established in the motorcycle world especially for thin wall tube. Though round rather than square, you will have seen that the Manx Featherbed was also Reynolds 531 tube.

This fall I did some silicone Bronze TIG welding on very thin metal. Is what we call TIG welding with silicone Bronze the same as Bronze welding just the same thing with a British version? Like we say hood for what you call a bonnet? Or Spanner/wrench? Or is it still done with a gas torch?

Jan 30, 2024 | 01:47 PM

#22

Mguar

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Quote:

Originally Posted by The Mekon

I think this project is very courageous! I have a 1972 V12 chassis - the engine has gone to be a work of art, and my original intention was to put a 4.2 engine in it. The body turned out to have more problems than i was willing to fix so the car will be scrapped eventually. I think you need to re-examine the weight figures, A V12 engine is heavier than an XK once you add the cast iron exhausts etc. The block is not light, and the crank is a monster!
The 3.31 LSD rear is bound for my running 1973 XJ6 once it gets its 4 speed o/d box. Will give me around 29mph/1000rpm in top o/d which the six should pull.
If you are really serious about this project then I may offer you the tacho and speedo from the V12. I have had lots of interest in these - they are rare.

thank you, that’s a very kind offer, but I was smart enough to grab those from the rust bucket that donated one of my early V12 engines .

Jan 30, 2024 | 01:56 PM

#23

Mguar

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Quote:

Originally Posted by Peter3442

Given the effort required in the project, I'd keep the injection and consider either a manual shift or a more modern automatic transmission with 4 speeds and lock up.

.

The idea of completely re-wiring the whole car to fit the EFI has me pretending to want to keep it original. Someone once told me that the whole wiring loam weighed 142 pounds??? Yuk!
As for an over drive auto or manual transmission? Nah, The sedan seems like a luxury cruising kind of car, so a manual doesn’t fit that image. And the work it would take to buy and install an overdrive won’t be paid back. ( I’m 75) besides, I’ll have all the shifting I want to do on the race track.