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Diesel Tinkering


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Posted

EVRY mod is a bid bad BODGE, a variable resistor soldered in line with the fuel temperature sensor to con the ECU into thinking the fuel is warmer i.e. less dense than it actually is, and injecting X% more fuel at all operating points.

 

For your car I would suggest that the .205 nozzles and remap would be enough to give you 130ish bhp and 300Nm torque which is getting to the levels where an upgraded clutch is a good idea.

Thanks for the gen! I dont mind some bodgery ftw:)

 

Will investigate 205s and remap

Posted

Is there anything I can do without spending money to get more go out of my Volvo V70 TDI?

I am going to advance the timing to help it combust veg and blank the EGR. It already has a straight through back box.

Posted

How hard would it be to put a 1.9 td xu lump in place of my 1.4 tu petrol in the xsara? Thinking of options in the future, possibly better to start with a diesel anyway!

Posted

With some of quotes you got for the Bora TDI, I should imagine anything with an engine change would result in much arse rapege from the insurance companies. Rarely viable to do an engine conversion, when you could buy a car with the said engine already installed. you can buy a Xsara with a xud can't you?

Posted

Really early xsaras had xud lumps,think majority was 2.0 hdi or petrol. Though I could be wrong. Would love a tweaked derv,wills pug gave me all sorts of naughty idead

Posted

Them hdi's in my eyes are ace engines as well. Pretty sure you can get a 110bhp hdi in a xsara, Shirley with a remap that would be a nippy motor.

Posted

The hdi 110 had dmf and other bollocks thouÄŸh didn't it? Also prefer old school mechanical diesel rather than electronic shite. Unless the 2.0 hdi isn't that bad. Also know the xsara briefly could be bought with a 1.4 hdi for utter misery

Posted

hdi Lift Pumps = not veg frienly

The donkey and injectors will run on Veg esp if you have the mighty Bosch  -  the lift pump in the tank wont cope with the viscosity of veg and gives up.

I do know people who have run on mixes of veg and dino. I keep thinking of trying it with mine.

Posted

The donkey and injectors will run on Veg esp if you have the mighty Bosch - the lift pump in the tank wont cope with the viscosity of veg and gives up.

I do know people who have run on mixes of veg and dino. I keep thinking of trying it with mine.

Interesting!

Posted

How hard would it be to put a 1.9 td xu lump in place of my 1.4 tu petrol in the xsara? Thinking of options in the future, possibly better to start with a diesel anyway!

Usually there's much more than the engine to swap, gear ratios and diff are different so you would need to swap that, the tank would no doubt be different, then the springs are usually heavier on a diesel to cope with the weight. Then to cap it all you will find it difficult to insure.

Posted

Usually there's much more than the engine to swap, gear ratios and diff are different so you would need to swap that, the tank would no doubt be different, then the springs are usually heavier on a diesel to cope with the weight. Then to cap it all you will find it difficult to insure.

Aka "buy a derv to start with":)

  • Like 2
Posted

To be honest mine is very economical for what it is. I worked out it did 55.5 in total to the gallon at shitefest overall. With price of diesel and conversion I doubt it would warrant it. Will buy a diesel though just to say I've owned one I suppose!

Posted

To be honest mine is very economical for what it is. I worked out it did 55.5 in total to the gallon at shitefest overall. With price of diesel and conversion I doubt it would warrant it. Will buy a diesel though just to say I've owned one I suppose!

Along with the other pitfalls pointed out above, I think an XUD might be less economical than what you've got out of the 1400. I've had a few and don't recall them gettin above 50mpg on a run. They do encourage enthusiastic driving though, as the lag followed by a slab of boost is quite addictive
Posted

Aye, XUDs aren't the most parsimonious of engines but with the right fuel pump they will run on anything oily.

Posted

Along with the other pitfalls pointed out above, I think an XUD might be less economical than what you've got out of the 1400. I've had a few and don't recall them gettin above 50mpg on a run. They do encourage enthusiastic driving though, as the lag followed by a slab of boost is quite addictive

I did 316 miles to wales,round Wales and back,never much ventured of 70 on motorway but did give it a bit of stick on the lanes on occasion. Used 30 quids worth of fuel in total. The 1400 seems like it's got a fair amount of torque for its size mind you I've come from 1.0 corsa to a 1.2 punto to this.
Posted

They feel very powerful in a 205. Not sure what they're like with injection rather than a twin choke carb but the grunt belies the capacity somewhat

Posted

To be honest mine is very economical for what it is. I worked out it did 55.5 in total to the gallon at shitefest overall. With price of diesel and conversion I doubt it would warrant it. Will buy a diesel though just to say I've owned one I suppose!

 

You probably used more water than fuel on the convoy!

Posted

I did til I fixed it. Rubber gloves still in situ. Some reason though it's still using water but no leaks.

Posted

post-4715-0-94118400-1434478308_thumb.jpg

 

That'll be the first 5 tub's of Yorkshire's finest* WVO emptied now.

All is well, and the boring produces considerably less smoke than a certain white Peugeot. There's no noticeable difference when running than on SVO or diesel.

Starting on 100% WVO was a somewhat difficult, so I dropped down to 50% veg with the same diesel and normality was resumed. I'm now upto 80% veg and starting is fine. I was thinking a while ago that the starter was getting a tad lazy (currently 238k) so I have purchased a reconditioned starter motor for the boring that I'll fit at the weekend. I'll try 100% veg again with the new starter.

  • Like 4
Posted

Running on veg is a winner's game.

 

Does anyone know if it's feasible to convert a DW8 engine from a Lucas/Delphi pump (I think there's an ECU involved - timing?) to a mechanical Bosch from an XUD? I've decided I'd really like a Berlingo Multispazz.

Posted

Im out of shitefest veg now, brimmed with derv this afternoon.

 

Have to say ive noticed more hesitant starting (its firdt flick of the key normally, even in the snow), and wondered uf it was the veg. Ill purge the system with derv tomorrow and have a listen. May see if the idle quietens down too.

 

Never had these issues running 100% asda new veg thoug.. . ,

Posted

Veg has a much higher ignition temperature, so the injectors and glow plugs need to be working well, along with decent compression. Poor combustion from a cold start is what can start off the viscious circle which ends up with little compression and sump oil like plastic - end of engine. 

 

Any probs at this time of year suggest all is not well. Could just be air in the lines, though - thicker veg creates much more of a vacuum which soon makes for leaky joints where proper fuel hose clips are absent.

Posted

Will answered this question previously on a windy hill in Yorkshire, but being mutton and a mechanical eejit I can't remember what he said...

 

N/asp 205D with Lucas pump - swap to Bosch reasonably doable??

Posted

I'm not too concerned tbh. After maybe 6 seconds of lumpiness (not quite dipping to a stall) it settles down as normal, and is fine for the rest of the drive. No smoke out the back either, and I;ve been trying after seeing the 205. 

 

I did think I had issues with my leakoff pipes (did chat about it on here) but even that's not happened much this year, even in the cold.

 

Will see what she's like in the morning.

Posted

You mention air in the fuel lines. I do remember a few weeks ago with the bonnet up doing screenwash, oil, general check etc ("yep, engines still there...") and I fel the primer bulb with the engine running and could feel the fuel rushing through, did feel a bit airy though. Couldnt squeeze it much though, and it doesn't squeeze much when the engines off.

 

With no other symptoms to think of should I just forget about it or is there a clear fuel line kit I can get to check?

Posted

 

 

N/asp 205D with Lucas pump - swap to Bosch reasonably doable??

 

I believe you need to change the pump, injectors and pipes.

Posted

I believe you need to change the pump, injectors and pipes.

 

It sounds like you may as well go the whole hog and drop a turbo lump in there instead.

Posted

Cleland Bros and 32otouring approved Mondo VEG technique- 110% success rate=

1. Buyez teh veg

2. Applies teh veg to teh kar

3. Applies key to ignishun barril

4. Applies teh key to 'oan'

5. Applies foot to fasterer pedul

6. Glowplug light extinguish

7. Applies key to 'start ya basturt'

8. Go Like Fuck

 

You'll be 5 miles down the road before the veg knows what is happening.

Posted

This was posted on the Shitpeas OMGRAFFLE page, but think it deserves to be here too.

 

https://www.youtube.com/watch?v=NBfiyZzhIfM&feature=youtu.be

 

Incidentally, know of Darren through my mate Ed, always helpful and a bit of a Guru on the 306 d-turbo forum. He's a proper Cornish buoy.

 

This is his video of an XUD with supercharger

https://www.youtube.com/watch?v=FjBiZhBqaeI

  • Like 2

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