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From: Steve Firth on 3 Oct 2009 07:27 Pete M <pete.murray(a)SPAMFREEblueyonder.co.uk> wrote: > Mike Barnes wrote: > > > Actually you're wrong. I've owned only performance cars since 1981 (Golf > > GTi, Audi Quattro, etc, don't sneer), and I intend to keep it that way. > > Good man. I'm glad you're not a diesel apologist. They;re somewhat > irritating. Although... 271bhp, 0-62 in 5.9s, 155mph (limited) and 42mpg are making me wonder if it's worth turning to the dark side of the Force.
From: Halmyre on 3 Oct 2009 10:19 In article <1j70fle.c2uvpk1csvjofN%%steve%@malloc.co.uk>, %steve% @malloc.co.uk says... > Pete M <pete.murray(a)SPAMFREEblueyonder.co.uk> wrote: > > > Mike Barnes wrote: > > > > > Actually you're wrong. I've owned only performance cars since 1981 (Golf > > > GTi, Audi Quattro, etc, don't sneer), and I intend to keep it that way. > > > > Good man. I'm glad you're not a diesel apologist. They;re somewhat > > irritating. > > Although... > > 271bhp, 0-62 in 5.9s, 155mph (limited) and 42mpg are making me wonder if > it's worth turning to the dark side of the Force. > And just think of the better class of people you'll meet in the queue at the pumps... Taxi drivers. Van drivers. Bus drivers. Taxi drivers. -- Halmyre The more you know the less the better.
From: Nick Finnigan on 5 Oct 2009 12:46 Conor wrote: > In article <ha01or$fa2$1(a)news.eternal-september.org>, Nick Finnigan > says... >> Conor wrote: >>> In article <h9tdp2$8el$1(a)news.eternal-september.org>, Nick Finnigan >>> says... >>> >>>> The Capri 2l doesn't have 130bhp. >>> Correct. However one with a Kent FR31 camshaft, 4-2-1 exhaust manifold, >>> K&N air filter and a rejetted carb does. >> But not the one being discussed which has roughly 100lb/ft torque and >> powerband from 2000-6000 rpm. > > Err, yes the one being discussed. But please feel free to tell me I have > no idea what I put in the engine I built. I am not telling you what you put in the engine. I am reading what you say you are getting out of the engine, and making the simple deduction.
From: Peter Hill on 5 Oct 2009 13:47 On Mon, 05 Oct 2009 17:46:34 +0100, Nick Finnigan <nix(a)genie.co.uk> wrote: >Conor wrote: >> In article <ha01or$fa2$1(a)news.eternal-september.org>, Nick Finnigan >> says... >>> Conor wrote: >>>> In article <h9tdp2$8el$1(a)news.eternal-september.org>, Nick Finnigan >>>> says... >>>> >>>>> The Capri 2l doesn't have 130bhp. >>>> Correct. However one with a Kent FR31 camshaft, 4-2-1 exhaust manifold, >>>> K&N air filter and a rejetted carb does. >>> But not the one being discussed which has roughly 100lb/ft torque and >>> powerband from 2000-6000 rpm. >> >> Err, yes the one being discussed. But please feel free to tell me I have >> no idea what I put in the engine I built. > > I am not telling you what you put in the engine. I am reading what you >say you are getting out of the engine, and making the simple deduction. 130bhp @ 6000rpm means it has 110lbs ft of torque. Will have more than that at peak torque around 3000rpm, estimate 75bhp = 125lbs ft. And good for nothing 95lbs ft at 2000rpm. But for a TDCi to be walking all over it when revved though gears to 6000rpm, it must be down to less than stock. Air filters? Are the carbs opening fully at full throttle? Are the choke plates at 90� to flow when off? Is timing correct? Is timing mark at true TDC? Has belt jumped a tooth? If you have a vernier pulley, has it slipped? Blocked fuel or air jets? Mixture screws all still in place? Any jets fallen out of carb into float chamber? Float levels? Compression? Unless you have been quite aggressive on CR that cam shouldn't be interference, so bent valve unlikely, rings or head gasket. Broken valve spring. Stick a vac gauge on it. You can get a lot of info from a vac gauge. Google vacuum gauge diagnostics. -- Peter Hill Spamtrap reply domain as per NNTP-Posting-Host in header Can of worms - what every fisherman wants. Can of worms - what every PC owner gets!
From: DavidR on 5 Oct 2009 20:04
"Pete M" <pete.murray(a)SPAMFREEblueyonder.co.uk> wrote > Mike Barnes wrote: >> >> 1 The diesel's power is available over a wider range of revs. You >> presumably quote peak power, which applies at only one speed. The >> petrol engine's power will fall off very quickly either side of the >> peak revs, whereas the diesel engine's won't. > > Diesel power bands are notoriously narrow, especially compared to that of > any good petrol engine. Turbo diesels have even narrower useable power > bands. Not necessarily. If a diesel has maximum power at 4000rpm and maximum torque at 2000rpm, which is exactly the same proportion as the 6000rpm and 3000rpm of a petrol engine. On top of that, a petrol engine typically bangs its head at 6500rpm whereas a modern diesel gracefully fades to 5000rpm. So, I suggest that a diesel overall, is actually wider. For me it is so. My present (diesel) and previous (petrol) have similar power to weight yet there is no doubt that between 30-80 the diesel gear ranges are both faster and wider. We're not talking nuances here, it's like going back 25 years to the time when cars were nearly half a ton lighter. Only from standing start (where absolute rev limit counts more than rev range), combined with the turbo lag does it lack petrol's finesse and so delivers a possibly inferior 0-40 time. |