Yeah ok im gonna go get the two engines in question just to prove you wrong. :nutter: Come back with the facts and i will praise your wisdom and proving me wrong.
I dont mind seeing pictures of your conversion with a Stilo engine into a Cinq.
Not 100% what i meant. I was just implying that all your info is based on what you've read in part catalogues, where as what i am saying is based on experience with working with the engines that we are talking about.
My stilo engine into a cinq is documented here;
https://www.fiatforum.com/cinquecento-seicento/176286-my-1-4-16v-cinquecento-development-thread.html
here's a picture;
Now to engines, well to plug a 1.4 16V into an ecu for a 1.2 16V, again wont work all the parameters are wrong. Do you honestly believe all ECUs are the same and all thats needed is a change in the fueling to make it work? All sensors on the car will be wrong for starters. So does that mean we all share the same ECU just with different settings for a particular engine? Really why do you think people fit the ECU from the doner car when doing an engine change besides the immobiliser issues (which can be bypassed anyway)?
Because the two engines are so similar, all their sensors are pretty much identical. You'd only use the block and head from the 1.4, and you'd simply bolt the 1.2 inlet manifold onto the 1.4. The port size is the same, but the 1.4 engines tend to have fly-by-wire throttles which the Brava/o ECU would be perplexed by. You'd need the coil packs and bracket off the 1.2 as well.
People fit the ECU and loom etc from the donor car because the one in their existing car does not have connections in the correct places for all the sensors - but again, because the 1.2 and 1.4 are so similar, the brava/o loom will plug straight in. If you were to fit say, a 1.6 16v engine - you'd need the 1.6 loom, or heavily chop the 1.2 loom so as everything fits.
All ECUs are essentially the same. They have an input from a TDC sensor, throttle posisition sensor, map sensor, air temp and coolant temp, they use data from them to look up in their tables and then fire the appropiate plug or injector based on the values of its inputs. They're not complicated things. They only differ in design from car to car due to the introduction of body computers, airbag ecus etc etc which all talk via the CANBUS.
JoskeJTD said:
I respect you've done a conversion on a Cinq but we aint talking Cinq here. If i had the time and money i could fit a Subaru engine to my Bravo, but as i keep saying its not a straight swap or a cost effective one either.
Thank-you
I know we're not talking Cinq here, but a brava/o isn't any more complicated than a Cinq. Fitting a 1.4 into a brava/o would be *much* easier than fitting one into a cinquecento. My cinquecento runs a megasquirt engine managment system, punto85 fuel pump, aditional fuel regulator to allow it to run the injection system for the 1.4 - in a brava/o, this would all just plug straight in.
JoskeJTD said:
If you read my previous post i dont mention any part numbers, as i aint stupid as yes they would be different and yes gear ratios will also be different. In respect to saying a gearbox from the 1.4 16V fitting a 1.2 16V or vice versa, is just incorrect visually aswell as physically. The boxes are different in every way. The only box that does fit a Bravo 1.2 16V is from a mk1 punto 1.1 or 1.2. IF 1.4 16V boxes fitted, im sure you would of told all the Bravo 1.2 owners out there who have failed gearboxes that they can open there search to 1.4 16V boxes too.
You are just completely wrong here, the boxes do not differ physically.
ANY FIRE derived block will fit
ANY FIRE box. Like i have said, my 1.4 is using the Cinquecento box that the car came with. My friends 1.2 8v Seicento has a 1.1 punto gearbox on it. The only bits on the external casing that differ are the clutch and selector mechanisms, which just unbolt and can be swapped over anyway.
JoskeJTD said:
Look i've offered my advice and Arc has offered his/hers. So do as you wish. All i will add is if you follow Arcs advice be prepared for lots of sleepless nights and loads of head scratching when you connect the 1.2 16V ECU and gearbox to the 1.4 16V engine.
Case Closed For me.
Arc is a guy, despite looking a bit girly in my avatar image.. haha.
As I have said, many many times now, you would have NO trouble fitting a 1.4 16v engine to the brava/o's existing gearbox or wiring loom.
