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Old 24-09-2007, 08:12 PM   #1 (permalink)
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Default Acceleration

recently had my centre section and backbox replaced, and since it just doesnt feel the same, the nippiness has gone. it just doesnt do anything anymore.

sort of feels as tho it is being restricted. going to try a fse fuel boost valve, and egr valve (i bloody hate these stupid, stupid contraptions.)

does anyone know of a reputable place where i can get one cheap? been quoted rediculouse prices: from 80 to 320. going scrappies in the morning anyway
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Old 24-09-2007, 09:13 PM   #2 (permalink)
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what does the fse boost valve do appart from raise the fuel pressure to around 4bar from 2.5ish.

does it give any more power or just better throttle response
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Old 24-09-2007, 09:14 PM   #3 (permalink)
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are you sure they fitted the correct sections ie not one off a smaller engine therefore more restrictive
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Old 24-09-2007, 10:10 PM   #4 (permalink)
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Default Re: Acceleration

Quote:
Originally Posted by aswearing
recently had my centre section and backbox replaced, and since it just doesnt feel the same, the nippiness has gone. it just doesnt do anything anymore.

sort of feels as tho it is being restricted. going to try a fse fuel boost valve, and egr valve (i bloody hate these stupid, stupid contraptions.)

does anyone know of a reputable place where i can get one cheap? been quoted rediculouse prices: from 80 to 320. going scrappies in the morning anyway
EGR valves are a bloody nightmare. They are supposed to help reduce emissions. What's the point of diluting oxygen (one fifth part of the intake air) with spent exhaust gasses? It only makes for ever dirtier engines and exhausts.

EGR valves clog up and create more exhaust ****e as a result. Most cars use them even back into the mid 1980's!


If you can get the EGR functionality disabled in the ECU (yes, I'm a fan of electronic tuning) then you will never have issues with the EGR valve.

Surely it cannot be good for any engine to re-inhale its spent (exhaust) gas.

The green wonder society will say different. But of couse they will. They feed their own kids on liquidised grass cuttings laced with waste dish-washing-up water in the interest of 'greeness'.

They're probably vegetarians, too!!
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Old 24-09-2007, 10:34 PM   #5 (permalink)
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it manages to reduce combustion temp to about 1200 ish i think, but i do knowthat mine will be clogged up thith carbon deposits.

i'm thinking of cleaning it but for the same labour i might as well change it if it becomes cheap enough. since its jammed open (fault code is now on) nox has skyrocketed and it doesnt smell the best at all. the centre section is correct yes, i couldnt have had less restriction when i had a huge hole in it...

fbv, increases throttle response, mpg, reduce flatspots etc. they can be adjusted for when you get into racing. and don't really do much for bhp in total. helps to shift at full throttle and cruise more economically when on motorways etc.
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Old 25-09-2007, 07:05 PM   #6 (permalink)
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NOX is always increased if combustion temperature goes up. CO decreases generally in the same situation. Chucking hot exhaust gas back into the engine will increase it's operating temperature, thereby putting NOx even higher.

Any anyway, what about the green thing. Somewhere in the world factories and chucking out dirty fumes as a result of the fabrication and manufacturing process.

All we're doing is moving the source of emissions really. I think cats were a step too far, too soon. Back in the early 1980's Honda had some very successful prototypes of the CVCC engines. These ran on incredibly lean fuel/air mixtures. Sadly, legislation trashed two decade's worth of investment and research by making the cat virtually mandatory for petrol cars.

That's the reason that diesels now generally flatten petrols with similar sized engines in performance terms (and they do, without question).

The legislation was also a step not far enough because at that time diesels were truly horrid, noisy, slow things that belched soot and all sorts of other crap from the exhaust.
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Old 25-09-2007, 07:19 PM   #7 (permalink)
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yeah the fctory i work at must kick out more co2 every day than what the 200 workers do driving there and home everyday. my department alone chucks out more rubbish every day than the wife and me do in amonth
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Old 25-09-2007, 07:28 PM   #8 (permalink)
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pgarner, it's good to find someone still working in manufacturing in the UK.

Let's hope that this country (or collection thereof, I'm totally aware that the UK does not just consist of England) can get a foot back into worldwide manufacturing and industry in general.

With the imminent demise of Northern Rock it's hard to see how Britain can be the centre of worldwide finance and money services.

One of my clients is a property repossession specialist and they're up to their ears in excess work.

For me, that's a sad situation. How the hell did we get here?

To summarise, good on ya, mate.. and I hope that industry in this country picks up BIG TIME. And, well, stuff the emissions crap, let's get some cash in first and get everyones' lives back in some sort of order where we're comfortable and can make a decent living without killing ourselves in the process

Rgds,

Paul.
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Old 25-09-2007, 07:55 PM   #9 (permalink)
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Quote:
Originally Posted by HDi fun
pgarner, it's good to find someone still working in manufacturing in the UK.

Let's hope that this country (or collection thereof, I'm totally aware that the UK does not just consist of England) can get a foot back into worldwide manufacturing and industry in general.

l.
You better remember it Lockerbie Cheese Factory is the best/ Highest qulity chesse in scotland. infact if you buy any scottish cheese from tescos it will prob be from lockerbie

the northern rock to be fair is it not part of an american company which has had issues with morgages in the the us of a

iwould also say thats the problem here is high prices
between me and the wife we earn just over £30 k a year before tax and overtime. we have no kids but our morgage is £400 a year then council tax insurance gas phone eletric and thats just on a on a flat the house prices are soaring to high ( our flat has gained 23k in 2 years. ive spent about 2k doing it up, now worth around 75 for a 2 bedroom flat )
just got our new morgage fixed and i was told i could get up to £70k onmy salary but i would have no money to spend thereforend up in debt have to borrow to get out of overdrafts and cc bills therefore still in debt fal behind in payments and lose the house. its a shame i work with some great folk and 1 is just over 40 and still living in a council house simply because he cant afford to pay for a house.

talking about industry picking up. we got told about a rival company starting in the next 2 years at carlise that will prosess 1.5 million ltrs of milk every day, to put it nicley we produce 80ton a day on 900 thou a day.
a big boost to the general area but on the other side gates (which most cars use for timing belts, drive belts) will prob be shutting down withen the next 5 years due to undercut prics from abroad.
industry wants cheap labour( we just accepted a 3% payrise compared to some thats nothing and we had to fight for 6 months for that ) so they arent going to find in in the uk so go elsewhere.

as for the emmissions and global warming fuk it. not to long ago we were in an iceage around here before there was dinos wandering about. anybody who looks at the history of the earth will see that the world gets hotter and colder.
me personnay i think its because the orbit around the sun is not circular its elliptical and changes every year there for sometimes were closer to the sun and others were further away.its also documented that the axis of the earth changes every so often so much so that the magnetic field changes so the mag north would point south. this has been found to have hapened a few time thou not much.

industry is better i have more time off than the wife who wors in a hospital she works 5 days with sum sunday work i work 3 and a half with up to 18 yes 18 weeks off if i take my holidays at the right time. iam also paid more than her( quite a bit ) and a lot less stress


can i ask what you do hdi going by most of your posts i think you should be a lawyer
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Old 26-09-2007, 10:34 AM   #10 (permalink)
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Global warming is a bit of claptrap really.

Let's face it, there's been ice ages, hot and cold planet syndrome millions of years before man evolved. The little bit of time we've been on this planet hasn't really given us a chance to make that much of a difference.

Look at it this way. Everything is solar powered in the big scheme.

OK power station burns coal. Which started as wood. The trees that consisted of this wood grew by the light of the sun.

Similarly petrol/diesel. Organic life millions of years ago that ate stuff in the sea. All this was fuelled by the sun's energy.

OK, a few million inside a rock seam changing into crude oil. But using NO RESOURCES AT ALL during that time.

Perfect.

How much cleaner can you get?

I'm quite fond of cheese I have to say. My waistline is less so! Any my kids will kill for the stuff. Any cheese, even the exotic European ones.

Only thing is, I don't get mine in Tesco - I avoid that place at all costs.

Morrisons, Asda and Waitrose are my choice of supermarkets but even then I won't buy meat products as I choose to support local farmers and butchers. It's a dying trade in this country.
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