Date registered: Aug 2002
Vehicle: 300 TE 24 Sportline
Location: Frome, UK
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
In answer to your 12Valve, 24Valve performance question
You aske dif the performance was as different as the figures suggest. The answer is yes.
I have very recently driven a 12Valve 3litre for a couple of days and had a chance to compare it to my 24valve.
The 12 valve encouraged a more relaxed, laid back kind of style. It seemed to have almost as much low down torque at lower revs as the 24 valve (if not more) and was smoother at low revs.
However, the 24 valve was smoother at higher revs, is totally linear in its acceleration from 1000 all the way to 7000 rpm due to the Variable valve timing.It just keeps pulling and pulling all the way.
Sound wise the 12 valve and 24valve were about the same at low and medium revs but the 24valve takes on a more raunchy snarl the higher it climes. Either way both straight sixes in my mind sound better than a V6 or V8. Think Spitfire or Mustang aeroengine (Merlin V12) rather than agricultural V8.
Subjectively and on paper the 24 valve feels the faster, lighter and more sprightly of the two engines but I don't know how much of that was because the 24valve I have has sportline suspension and the 12 valve I drove didn't.
Certainly away from the traffic lights the 24Valve stomps all overt he 12 valve.
Yes the 24valve is known for a few oil leak, head gasket issues. I have just had my headgasket replaced and valves done , decoke head etc.. for a little over Â£1000 GBP. It will be good now for another 150,000 miles. I now have no oil or water leaks and its as smooth and quite at tickover as an engine with 1/100th the millage.
I suspect that although the 500E is undoubtedly faster in a straight line than the 300-24, all that V8 weight upfrount has got to have screwed the natural balnce and weight distribution of the 3litre straight sixes.
Take a look at tsome of the recent posts on this forum atthe bi-turbo conversion for the 24valve thats available. I rekon a bi-turbo 24 valve with 317bhp would wip an E500 anyday in a straight line and round the corners. It would probably be cheaper to maintain as well.