need more power

[Hamster86]

got a 200tdi looking for ways to get bit more get up and go. its serviced regular, have cleaned intercoler, had turbo tweaked a bit but she is slow bottom end and tops out at 70. any ideas please. looking into putting a cooler off a skyline on it which might help but unsure
thanks
chris

[SCHREIBER]

Any bigger intercooler will help, as long as you increase the fueling to match, same with turbo boost pressure.

[Hamster86]

Any bigger intercooler will help, as long as you increase the fueling to match, same with turbo boost pressure.


nice 1 how do you adjust fuel or best to take to specialist

[thebiglad]

got a 200tdi looking for ways to get bit more get up and go. its serviced regular, have cleaned intercoler, had turbo tweaked a bit but she is slow bottom end and tops out at 70. any ideas please. looking into putting a cooler off a skyline on it which might help but unsure
thanks
chris


Hi Chris, if a TDi 200 tops out at 70mph there is something wrong with her.

We had a std Tdi 200 until recently and she would go up to (on the clock - with std tyres) nearly 90mph before topping out.

If I were you I would be doing the following:

1. Remove, clean and reinstal the fuel sedimenter:

2. Remove and examine the rubber turbo hoses internally and externally. Sometimes, particularly the elbow joint, delaminates iside and partially blocks the pipe.

3. Remove, clean and reinstall the intercooler, they can get blocked with crud and reduce efficiency.

I would strongly advise you to check her out before trying any tuning up - she's not running as she should. What's your fuel consumption like? We used to get 36mpg. Is there any smoke once she's warmed up?

[SCHREIBER]

nice 1 how do you adjust fuel or best to take to specialist

As big Ad said, make sure the engine is in top nick before you do it, and if you don't know 100% what your doing, then take it to someone who does, I took mine to a local landy garage:)

[Hamster86]

hi, intercooler has been removed and cleaned checked pipe work while it was off and was all ok. there is small amount of smoke on start up but non at all when warm. its on big tyres which i guess would slow it down a bit, and unless i seriouly give it some stick im returning mid 30s to the gallon, but it runs on bio, would that make any difference to the performance

[thebiglad]

hi, intercooler has been removed and cleaned checked pipe work while it was off and was all ok. there is small amount of smoke on start up but non at all when warm. its on big tyres which i guess would slow it down a bit, and unless i seriouly give it some stick im returning mid 30s to the gallon, but it runs on bio, would that make any difference to the performance


The clue is in the tyres comment !! Precisely what size and type of tyres are you running?

[Hamster86]

The clue is in the tyres comment !! Precisely what size and type of tyres are you running?

265/75 16,
one other thought it only revs to 3500

[thebiglad]

265/75 16,
one other thought it only revs to 3500


OK, std tyres are 235/70/16's with your 265/75/16 your speedo is reading approximately 10% slow, so is your mileometer.

The effects don't stop there. It's a bit like if you had a 6th gear, on any kind of a hill you would need to drop down the box wouldn't you?

However, I still think your motor is not running to full std spec. With your current tyres if all was running correctly you should be able to pull 4000rpm easily (if somewhat noisily !!!) in 3rd or 4th gear.

My money is on a poor fuel supply caused by either the current fuel filter partially blocked or muck in the fuel separator.

Drop the fuel separator bowl fully off, don't just try and do it via the little white plastic tap - it'll break and you won't get the lodged crap out anyway. Take a look inside and you might be surprised at what is there - often it's a mayonnaise looking 'gloop' that rises and fall with fuel demand and reduces the flow. After running for a few miles it's good practice to change the fuel filter, as it will have trapped any disturbed muck.

It takes 10mins tops to do, should be part of regular servicing and costs nothing - so why wouldn't you??

I'm assuming you have put a in a new airfilter??

For your info Paddocks do a TDi300 filter kit (air fuel and oil) for £6.28 plus vat.

[Hamster86]

daft question what is the fuel seperator, i replace the fuel filter about once a moth because of being run on bio. air filter replace regular too.

[thebiglad]

daft question what is the fuel seperator, i replace the fuel filter about once a moth because of being run on bio. air filter replace regular too.

The fuel separator is another device for protecting the engine and pump from various sorts of rubbish and water, which can accumulate in the fuel.

It looks a bit like a fuel filter - similar size - and is found attached to the inside of the chassis, on the drivers side, just in front of the rear wheel.

You will need an 11mm ring spanner to remove it. Also find somethng like an old ice cream tub for catching spilt fuel - there will be some !! It has one 11mm bolt mounted on the top of the unit in the centre - undo this completely.

The bowl is sealed by a rubber seal which can stick, so after the bolt is undone don't be surprised if it doesn't come free imediately. Sometimes a tap or two with a rubber hammer or similar is needed to release the bowl - try to keep it upright as it is full of fuel. Remove from the vehicle and examine the contents carefully, then thoroughly clean and reinstall.

Attached are pictures of what I found in the last one I did.

[Hamster86]

cheers, ill give that a bash and see how it goes
chris