I'm glad to hear that the liners have been looked at in a more radical manner than on the Focus RS. Given the relatively common problems that S60R and V70R owners have experienced with split liners, I hope to God that the plasma coating of the RS liners is enough to stop them cracking, or that could be a serious PR problem for Volvo.

cheers

James

They plasma coat the Nissan GTR block.

Apparently it makes it radically stronger.

Good job, although some people are getting big power outputs on C30 world with the 2.5 block.

I think it's pot luck (literally!) with that block, get a good one it's OK, bad one and it goes boom if you go past 300bhp (or even just get it badly mapped)

apparently too many PSI in the mid range is what wrecks the block on the Focus ST - which get driven a fair bit harder than most S40 and C30 T5's one would think :)

It'll be heat that's the cause, IMHO. That'll get much worse with bad mapping. The worry is that a number of bone-stock and otherwise healthy S60R/V70Rs have been known to crack liners (with re-mapped ones more likely to do so)...so the "original" 300bhp 2.5 apparently couldn't be trusted to reliably cope with the long-term effects of the thermal load imposed by the combustion conditions required to achieve 300bhp. I suspect that (internally) the 2.5 R, 2.5 T5 and ST engines are more or less identical, so pushing these beyond 300bhp is a risky business. That's not to say that it hasn't, or cannot, be done...but I'd have a spare engine lined up if it were my car (much as many P2R owners know where to find a 2.4 T5 engine, should the need arise).

I'm not trying to bash Volvo in the slightest here...I just hope to goodness that they fixed the problem for the RS. Car tuning enthusiasts have been spoiled in recent years, with many production engines safely able to double (and beyond) their factory output with bolt-ons alone...but there's no god-given right for an owner (of an ST, for example) to expect to be able to increase power by 50% with no ill-effects. However a standard car shouldn't have those problems...so I hope the plasma coating works.

It's bad enough when Volvo-fans mumble about the P2R problems...but some of the die-hard Ford fans need no encouragement to slate the use of a Volvo engine. If an actual weakness in the RS does rear its ugly head, that could get messy for the reputation of the brand amongst petrolheads. As it stands, Volvo (and us fans) are right to feel pretty smug about helping out Ford by lending them our superior engine. :D

I don't see what's wrong with a closed deck, myself, but there must be method in the (seeming) madness...

cheers

James

http://en.wikipedia.org/wiki/T5_engine

"The Volvo Modular engine is a family of straight-4, straight-5, and straight-6 automobile piston engine produced from the first year Volvo 960 appeared with the B6304F engine (1990). It has an aluminium engine block and aluminium 4-valve DOHC cylinder heads and uses SFI fuel injection and has fracture-split forged steel connecting rods. All are built in Skövde, Sweden."

The engine is Swedish..The platforms is from 3 company Ford,Volvo and Mazda..

http://en.wikipedia.org/wiki/Ford_C1_platform

And itis only the front- and rear-subframes, suspension, steering, braking, safety, and electrical components are shared.

Yes the T5 and RS engine is the Volvo 2.5 unit but arent the new T3,T4 and T5 engines in the S/V60 range Ford EcoBoost engines?

Anyone who would consider buying a C30 Polestar if it went into production, check this thread:

http://www.volvoforums.org.uk/showthread.php?t=116414

B5254T7The B5254T7 is a slight adaptation of the B5254T3. It has VVT and is turbocharged and intercooled. The turbocharger is still integrated into the exhaust manifold, but is of a different design.

Using the M66W (FWD) or M66C (AWD) manual transmission output is 227 hp (169 kW) at 5000 rpm with 236 ft·lbf (320 N m) of torque at 1500-5000 rpm. With the AW55-51 automatic transmission, torque is limited in first and second gear.

Applications:

2006- Volvo C70 T5
2007- Volvo S40 T5
2007- Volvo V50 T5
2008- Volvo C30 T5

B5254T3It has VVT and is turbocharged and intercooled. Unlike previous designs, the turbocharger is integral with the exhaust manifold. It uses the Bosch ME 9.0 engine management system. [1]

Using the M66W (FWD) or M66C (AWD) manual transmission output is 220 hp (162 kW) at 5000 rpm with 236 ft·lbf (320 N m) of torque at 1500-4800 rpm. [2] With the AW55-51 automatic transmission, torque is limited in first and second gear. [3]

Applications:

2004.5-2006 Volvo S40 T5
2004.5-2006 Volvo V50 T5
2005 - 2011 Ford Focus ST
2009 - 2011 Ford Focus RS


Have no clue but it sound stupid to call it T5 2,5l if it not the same engine the rest of the brand.But the v50 and c30,c70 have 230hp and the v60,v70 and s80 have 240 hp not sure what that means,

Sorry for my bad english

Checked on Volvo and Ford sites, the T3,T4 are 1.6 4 cylinder with 150ps and 180ps respectively. The T5 is a 2.0 4 cylinder with 240ps. Same engines are in the ford range.

Except for the North American market, were the T5 still is a 5cyl with 250hp/360nm(overboost to 400).

So if I'm right about Volvo using Ford engines and Platforms, could I be right that Ford are putting pressure on Volvo not to produce a competitor for the Focus RS