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Vincero said:
How do you know that??? What's that been used in?
Kia Sedona used a 2.7l version of the KV6.

Plus, if you correlate on a cylinder by cylinder basis, 1.5 times the 1800cc K4 gives 2700cc.
 

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Schtopper said:
wasn't there a 2l K series though? so 2 x 1.5 = 3Ltr.
Not a 2litre K from Rover. Others have done that.

Besides, do we know how much effort they went to for the 2.7l engine or is that already at the limit of how much gap there is between the individual liners as in the 1.8 K??
 
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There is the 2 litre K4 used in the BTCC cars but that, honestly, is not a road engine.

2.7l V6 is as far as you can go. It was very difficult for MGR to stretch the K4 to 1800cc
 

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yes but it's very expensive as you have to do a lot of strengthening to keep the engine reliable. I know JUDD do/did a 2L K series, which was a modified 1.8k. Ok it was a performance engine (250bhp) but even so it cost something around £13K mark and requires a rebuild every 3000miles.
As already said the 1.8 is a bored out 1.4 with increased stroke and is already very near it's economic reliability limit.
 

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Schtopper said:
yes but it's very expensive as you have to do a lot of strengthening to keep the engine reliable. I know JUDD do/did a 2L K series, which was a modified 1.8k. Ok it was a performance engine (250bhp) but even so it cost something around £13K mark and requires a rebuild every 3000miles.
As already said the 1.8 is a bored out 1.4 with increased stroke and is already very near it's economic reliability limit.
Yeah, but if they were to wind down the wick a little, run it at 200bhp (which is higher than what Rover normally allow out of the KV6) instead of 250 it would become far more reliable. Also, no doubt part of the cost is due to the custom/specialist nature of the build - if it was productionised costs would plummet.

I still think a K5/KV5 is a practical idea and would fit in many of the current MGR engine bays and allow bigger and more powerful and more competitive engines. After all VW do it and nobody moans.
 
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