25-02-2014, 10:41 AM
(25-02-2014, 10:17 AM)powerandtorque Wrote: It's probably easier to list what's the same between the S16 and GTi-6 engine than what's different!
The S16 (XU10J4) engine is basically an iron block 2.0 litre version of the 1.9 litre alloy block Mi16 (XU9J4) engine, and as such they share the same head design (to all intents and purposes), same camshafts etc. The fact that the larger capacity engine is slightly down on power is owing primarily to emissions.
GTi-6 (XU10J4RS) engine uses the same basic block and crank as the S16, and has the same capacity as a result, but otherwise is quite different - head design is quite notably different, cams are different, manifolds etc. It is effectively a tuned version of the standard later 2.0 16v (XU10J4R) found in XSi 16v and various PSA saloons.
You can use a GTi-6 inlet on an S16 and it is quite common as the S16's ACAV setup isn't the most reliable thing in the world, but most of the other bits aren't interchangeable between the two - exhaust ports are quite different so the manifold won't fit, cams won't fit (S16 ones are "hotter" anyway though), etc.
What makes the difference between the two? Difficult to pinpoint exactly as they're so different, but what I can say is that with a better exhaust manifold and ITB's the S16 will crack 190-200hp making it clear how much the standard manifolds and management hold it back.
I've always said that the S16 engine itself is very good and very under-rated, but it's held back by the bits attached to it and has always been unfairly overlooked in favour of its lighter older relative or the newer GTi-6.
What he said!
(25-02-2014, 10:41 AM)Frosty Wrote: [quote='powerandtorque' pid='396819' dateline='1393323455']
It's probably easier to list what's the same between the S16 and GTi-6 engine than what's different!
The S16 (XU10J4) engine is basically an iron block 2.0 litre version of the 1.9 litre alloy block Mi16 (XU9J4) engine, and as such they share the same head design (to all intents and purposes), same camshafts etc. The fact that the larger capacity engine is slightly down on power is owing primarily to emissions.
GTi-6 (XU10J4RS) engine uses the same basic block and crank as the S16, and has the same capacity as a result, but otherwise is quite different - head design is quite notably different, cams are different, manifolds etc. It is effectively a tuned version of the standard later 2.0 16v (XU10J4R) found in XSi 16v and various PSA saloons.
You can use a GTi-6 inlet on an S16 and it is quite common as the S16's ACAV setup isn't the most reliable thing in the world, but most of the other bits aren't interchangeable between the two - exhaust ports are quite different so the manifold won't fit, cams won't fit (S16 ones are "hotter" anyway though), etc.
What makes the difference between the two? Difficult to pinpoint exactly as they're so different, but what I can say is that with a better exhaust manifold and ITB's the S16 will crack 190-200hp making it clear how much the standard manifolds and management hold it back.
I've always said that the S16 engine itself is very good and very under-rated, but it's held back by the bits attached to it and has always been unfairly overlooked in favour of its lighter older relative or the newer GTi-6.
What he said!
So a gti6 exhaust manifold can't be put on a S16?