Talk:Alfa Romeo Flat-4 engine
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[edit] 1.5 not largest
The 1.5 engine was the largest Flat-4 supplied in the earlier years, however, Alfa produced larger flat-4 engines in production cars after this time.
These included the 1.7 8v engine, fitted to the Alfa 33 at the first model update (in both carburettor and injected forms in various markets). Also, the famous 33 QV 1.7 16v (132-137bhp) engine. In addition, early 145/146 models included boxer engines before being switched for inline engines late in their product life.
A popular Alfasud conversion is to transplant the 1.2/1.5 engines for a 1.7 8v engine (takes power from 65/86bhp to 118bhp, making a series 1 Alfasud (780kg) an exciting vehicle), as no engine bay modifications are required. Some have transplated 1.7 16v engines, though work is required in the Alfasud and Alfasud Sprint to make the engine fit in their smaller (than Alfa 33) engine bay.
The only change is to use the 16 valve front crossmember, as the cam wheels would foul the original. The bolts that hold the crossmember on are longer on the 16v so don't forget to use these as well. There is a sit called alfasprint16v which details it Expatrep 01:00, 30 January 2007 (UTC)EXPATREP
- We need to add something about the 1.7 which used a bore of 87.0 mm and a stroke of 72.0 mm for a capacity of 1721 cc. Used in the Alfa Romeo 33 from 1987 to 1994 in 8-valve and 16-valve versions. --Xagent86 06:43, 21 December 2005 (UTC)
[edit] 1.6 boxer
Did the Alfa 145 and/or 146 have a 1.6L variant of the flat-4? I need to check this, but I'm sure these were used at some point. Not to be confused with alfasud racers who fitted pistons from the 1.7L into an overbored 1.5L engine, resulting in 87.0 mm bore x 67.2 mm stroke and a capacity of 1598 cc. I'm talking about a production engine here. If I find some references on this, I will add to the page. --Xagent86 06:43, 21 December 2005 (UTC)
[edit] Boxer or flat-4
Is there an official policy by Alfa Romeo - was it always called a flat-4 or was it sometimes a boxer, or can either name be correct? --Xagent86 06:43, 21 December 2005 (UTC)
