tigger1black
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Technical Help needed please punto engines
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Technical Help needed please punto engines
fiat have already done it, and called it a Punto75
yup... if your gonna do the swap, go for the mk1 engine, but in all honesty, your better off selling and buying a sporting... the insurance companies hate engine transplants and you'll pay for it. a 55 or 60 with a 75 engine will cost more in insurance than a punto that was a 75 from the factory.
The reason you can't go for the MK2 engine is that the mounting points are different for a start... would require a fair bit of fabrication to get it installed. Then the ECU works differently... it communicates with the body computer and the steering computer, so its likely to throw a hissy fit when it can't find these other devices on the network. Then theres the immobiliser... the punto mk2 uses a rolling code immobiliser, so your MK1 key wont support that and so you'll need a lockset from the MK2 aswell, which won't fit the MK1. The MK2 engine may be able to be run off the MK1 75 ECU with a lot of wiring work, but you still have the problem of fabricating new mounts to support the engine.
The reason you can't go for the MK2 engine is that the mounting points are different for a start... would require a fair bit of fabrication to get it installed. Then the ECU works differently... it communicates with the body computer and the steering computer, so its likely to throw a hissy fit when it can't find these other devices on the network. Then theres the immobiliser... the punto mk2 uses a rolling code immobiliser, so your MK1 key wont support that and so you'll need a lockset from the MK2 aswell, which won't fit the MK1. The MK2 engine may be able to be run off the MK1 75 ECU with a lot of wiring work, but you still have the problem of fabricating new mounts to support the engine.
all very good points bar the engine mounts one.
the mounting points are on all FIAT FIRE engines for all engine mounts. (hence why a 1368cc 16v engine fits onto the stock engine mounts in my cinquecento)
still, don't fit a mk2 engine in the mk1.
the mounting points are on all FIAT FIRE engines for all engine mounts. (hence why a 1368cc 16v engine fits onto the stock engine mounts in my cinquecento)
still, don't fit a mk2 engine in the mk1.
AFAIK, between the MK1 and MK2 puntos, the 1242 drivers side mount changed from being attached low down on the block, to being up on the head... (or maybe the other way round... can't quite remember.)
it went from being on the block to being on the head, but there is nothing to stop you taking the mount off the old engine and bolting it onto the new engine 
