Discussion
OK just playing with an idea here. Having recently seen the "reborn" MGB's running Mazda MX5 engines and countless swaps over the years got me thinking. I have a Jaguar XJC and it currently has a 6.0 XJS v12 in it (but annoyingly not the one with the four speed box).
My question is.... how do you work out what engine swap would actually fit the car? Say if I wanted to fit a 3.0 Diesel engine and 8 speed box out of an XF or the V8 supercharged XFR engine. How would I go about it to even make a start assuming I could lay my hands on an engine.
This is just hypothetical at the moment as the car is in for restoration.
Enlighten me....
My question is.... how do you work out what engine swap would actually fit the car? Say if I wanted to fit a 3.0 Diesel engine and 8 speed box out of an XF or the V8 supercharged XFR engine. How would I go about it to even make a start assuming I could lay my hands on an engine.
This is just hypothetical at the moment as the car is in for restoration.
Enlighten me....
//j17 said:
Height is offer the killer with classics because modern engines need to be really tall for some reason.
Unless you're doing something common where enough people have trodden the path that someone's made parts you will hit issues and have to engineer around them, but that's part of the fun.
Yeah height was the issue I thought it would come up against. Most of the cars that have had swaps away from the original engines are in the states so they have LS3 Chevy V8s in them Unless you're doing something common where enough people have trodden the path that someone's made parts you will hit issues and have to engineer around them, but that's part of the fun.
finishing touch said:
"OK just playing with an idea here. Having recently seen the "reborn" MGB's running Mazda MX5 engines and countless swaps over the years got me thinking."
Shirley people don't spoil an MX5 engine by wrapping an MGB around it do they ?
http://www.frontlinedevelopments.com/vehicle/mg-le50/Shirley people don't spoil an MX5 engine by wrapping an MGB around it do they ?
Cheers 300bhp that is pretty much my thought
I am sure the GM box can fit and there are adaptor plates available. Have had an initial quote of 2k for a gearbox and fitting. This would give it some improved oomph off the line and a quieter and slightly more economical cruise at motorway speeds.
The later 6 speed GM boxes are physically bigger so would require some hacking of the car I guess
The most popular engine swap for these cars and other series 1-3 seems to be Americans replacing the engine with a 6.2 LS3 Chevy v8 and the aforementioned GM four speed box.
I am sure the GM box can fit and there are adaptor plates available. Have had an initial quote of 2k for a gearbox and fitting. This would give it some improved oomph off the line and a quieter and slightly more economical cruise at motorway speeds.
The later 6 speed GM boxes are physically bigger so would require some hacking of the car I guess
The most popular engine swap for these cars and other series 1-3 seems to be Americans replacing the engine with a 6.2 LS3 Chevy v8 and the aforementioned GM four speed box.
300bhp/ton said:
In the case of the op, if all they want is different gearing, there are lots of potential answers. Such as an OD/slitter unit. It attaches to the output of the gearbox and before the prop (short prop needed) and allows you to split the gears. So could turn that old 3 speed auto into something with affectively 6 gears.
Tell me more / point me in the right direction please Just to bump this topic a little bit. I never could get a response from gear vendors that 300BHP posted about in terms of the transmission splitter. However, i found a company in the UK and the response was that one suitable for my car would be 3 grand plus vat and fitting! hmm thats a lot of fuel based on a 25% saving on cruise! The UK supplier said that the mod would give me the lower RPM at cruise I was looking for and 25% fuel saving on cruise but then started talking about If you wanted better acceleration they could do a higher stall torque converter and install a valve body reprogramming kit which apparently would make the vehicle launch better and make the shift faster and cleaner. Not sure what that entails though so have replied to ask for more details.
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