850 Engine swap?

kmead

Glutton for punishment
He had it for sale here without the G13B twincam.

Other things of note in that thread if you go farther back are the techniques he used to replicate missing parts/rusted panels which was pretty smart.
 

fiatrn

Jonathan is the FiatRN
I know this is almost two years after the OP asked about engine swaps, but a Honda D16Z6 rotates the proper way, is fuel injected, and makes 125ish stock horsepower. With modern maniacs turbocharging these things, there's no reasonable upper limit on available power.
 

Dave Bassett

True Classic
With no real experience but having had a number of conversations about engine swaps, in general, and having read this thread several times, it seems like the first critical decision is whether to retain the Fiat transaxle or switch over to a VW transaxle. The VW transaxle would seem to offer more engine options, more gear ratios, greater strength, and call for relatively little fabrication or modification of the body. I do suspect that a significantly larger engine would require a larger radiator in the front of the car. But perhaps that could be avoided with a slightly larger radiator in the stock location and greater air draw.
 

Dr.Jeff

True Classic
I know this is almost two years after the OP asked about engine swaps, but a Honda D16Z6 rotates the proper way, is fuel injected, and makes 125ish stock horsepower. With modern maniacs turbocharging these things, there's no reasonable upper limit on available power.
I do not know anything about the 850 and I realize this thread is about a 850 engine swap, but the mention of a Honda "D" engine is interesting with regards to the X1/9 also (sorry if I'm going off topic). For the X we've seen a number of Honda "K" swaps, and some Honda "B" swaps, but no "D" swaps. And in general I haven't heard much about the Honda "D" engines. As I understand it, in the past they weren't extremely popular for performance applications (in any car) due to having a lower power output than other Hondas. However the cost of "K's" has gone up considerably and the "B's" are getting harder to find. While the "D's" are plentiful and cheap....like the "B's" used to be. Therefore lately it seems the "D" is becoming more popular as performance mods and aftermarket support grows for it. The relatively low compression ratio and strong bottom end makes it a excellent candidate for a small turbo addition (as @fiatrn said). Plus it is smaller and lighter than the "K". Therefore it might be a good option for a affordable swap - 850 or X.
 

ramona300

True Classic
VW transaxles are starting to get scarce and expensive. A cheaper and better alternative would be an Audi gearbox from one of the inline models and go straight to a mid-engine conversion. Better than a big lump hanging out the back!
 
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