made by webber are they not? so no not french
Exactly.
It´s an IDENTICAL cast, only difference is that the 1108cc one has 30mm(it is 30mm, the 31mm is just a small step at the bottom) bore and the 1360cc pugg one has a 36mmbore.
Difference is that Pugg and Fiat has utilized the TB a bit differently.
Fiat heats the TB by a coolingwaterchannel through the TB, pugg use an electric heater that sits just besides the idlestepper.
You can actually plug upp the heating piping, it´s in paralell to the ones going to the heatermatrix, so in fact i noticed a bit more effective heating this morning
, som MIGHT say that you risc icing in the TB but i´ve never had any problems with iced upp TB:s, and i live in Sweden, so we DO have winter. As long as you preserve the air preheatingsystem you should be safe.
And, if you DO want to have the "icing prevention" heating, the best option would be to connect the electric heater on the PUGG tb, to the fuelpumpfeed or similar, then you have the function.
And then there´s just one connection at the back, while the FIAT TB has 2, you COULD split it to both take the canisterpipe(blue) and the pipe from the crankvent, but the only pipe that NEEDS to be connected is the crankvent so you can really let the canisterpipe just "hang loose", it doesn´t do anything bad for the machine. Increases the pollution a bit more since gases from the petroltank is put into open air instead of being cycled into the engine.
So, the connector at the back of the pugg TB, to the small crankcase ventilation pipe.
And of course you ned to enlarge the distanceplate that sits between the TB and the manifold. I just used a small Hole Saw with 38mmdiam and an electric drill to sort that. Then switch over the top bit of your old FIAT unit, with the injector and all that in, and put on top of the PUGG TB.
Off you go
, i´m experienceing small problems with idle, but i think i should "clear" the ecu later today and that will probably solve that after it has doned a relearn.
Sorry that i write so much about the TB in the chipthread, but this just just a new engine all together!!!, with chip+cam+TB the performance so monstrous compared to a stock 1108cc engine.
With, as far, same milage....!