anybody knows who does the 2-tank diesel conversion to run by PPO

joy123

hi folks,
anybody knows who does the 2-tank diesel conversion to run by PPO??? and how much they charge for that?? thanks in advance.

http://www.elsbett.com/ie/about-us/introduction.html


http://www.frybrid.com/frybrid.htm


as far as I know kits can cost around 1000 euros before being fitted.
If your good with cars you could fit it yourself - I dont know how much people charge for fitting them. If you get a price post it pls!

joy123

ecocar prices for 1-tank conversion kit fitted and supply €1850, only kits around €1000.
2-tank conversion €50 expensive then 1-tank coversion.

idi engines are generally in cars 10years ++

I wouldnt bother with a kit - not worth it plus most have no problem without the kit. Just add some diesel or some solvent in winter and it will be fine.

Di engines on the other hand must have the conversion

joy123

i drive 98 passat 1.9 tdi with AHU engine. with 200k miles. do u think its worth it to do the 1-tank conversion?

ah I forgot that there are a few exceptions to the rule - some of the tdi engines can accept one tank conversions!!

I really dont know and dont want to send you wrong in case it ruins your engine - those engines are great and will go and go and go !
So I recommend you post on this site:

http://www.vegetableoildiesel.co.uk/forum/

Ask them about your car and engine - there is even a database of cars running on veg oil and what conversions/modifications they have etc


The general rule is
di engines = two tank conversion kit
idi engines = single tank conversion kit (most will run fine without a kit but with a timing advancement of approx 4 degrees)

Exceptions to the above are some of the TDI engines. I read that even some of the PD engines can accept a single tank conversion kit.
I suspect that due to them being direct injection that to prevent carbon build up and to ensure a better combustion that the after market injectors are more necessary than in the old indirect injection engines.

Indirect injection:
Fuel is injected into a seperate chamber before it goes into the cylinder to be compressed - in this pre chamber is begins to combust.
Hence fuel entering the cylinder is already combusting.

Advantages:
Quieter(for the time period)
For running plant oils the oil is already burning going into the cylinder preventing problems associated with unburnt fuel

Disadvantages(and why car manufacturers moved to direct injection):
Fuel is wasted because it is being burnt before it enters the cylinder.
Because of the above there is less power and fuel economy is not as good.

Direct injection:
Fuel is injected straight into the cylinder and compressed to ignite


Advantages:
Modern computer controlled injector pumps can be ultra precise with fuel injection
Fuel can be adjusted by the computer to compensate for air temperature and all sorts of variables collected by sensors around the car
More power
Better fuel econonomy

Disadvantages:
Sucks for burning plant oils
vegetable oil injected into the cylinder is compressed but as it has a higher flash point than diesel not all of it ignites
leaving behind carbon and vegetable oil residue which can lead to piston ring sticking(engine rebuild time!!:O)
Vegetable oil that is unburnt can enter the engine oil and cause problems.

Why they use twin tank conversion kits:

Engine is started normally on diesel
When the engine is hot a switch is flicked (can be an automated process) and the vegetable oil is injected into the already VERY hot cylinder which means that the oil ignites far more easily.
Then your supposed to flick the switch back to diesel so that you purge the engine of vegetable oil
so that your starting on diesel next time the car starts