Sluggish disco.........not any more!

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Fitted an Allisports Intercooler, EGR Blanking plate, sports exhaust with de-cat and modified the fuel pump 11/2 turn on the torx screw, 90 degrees on the diaphragm and 1 turn on the star wheel

Works a treat, runs really smooth, no smoke, no flat spots, its got a real surge from 2000rpm with noticeable increase in power, its no Ferrari killer but for 2tonnes it goes considerably better than before :)

Well impressed :D

Thanks for posting this info. learnt a lot ;)
 
I drove a 300tdi 90 with a VNT turbo the other month that was coupled with the usual intercooler/fuel pump/de-cat mods.
The power delivery was incredible and felt comparable to a TD5.

Definitely on my wish list!
 
I've experienced an uprated turbo from Turbo Dynamics in the past and would definitely recommend them, a standard looking turbo with modified internals is easy to fit and Mr Insurance man wouldn't know the difference ;)
 
seankenyon said:
I've experienced an uprated turbo from Turbo Dynamics in the past and would definitely recommend them, a standard looking turbo with modified internals is easy to fit and Mr Insurance man wouldn't know the difference ;)
Click to expand...

The only Turbo Dynamics I could find is a Californian company selling kits for snowmobiles?????
 
on the first page there is a picture showing starwheel plastic collar and spring. on taking my pump apart to tweek i have found there is no spacer? what would the implications be of not having one? its the first time its been opened as far as im aware as theres only one line worn into the pin. it feels like theres no turbo activation/intercooler leak.
 
I played around with my pump a while ago, gave me a lovely boost in power. I tell you though, i did an oil change the other day and used some forte engine flush, i always use engine flush on badly serviced vehicles. My goodness me, it pulls like a bloody train now! And to make it even better, the oil is still pretty clean, it didnt turn into a black sludge instantly!

Just note that if you dont read the destructions and run it on the flush for too long, it will f**k up your engine! But i do reccomend giving it an oil flush, well worth it...
 
Just got a very very big cooler for mine just need to do some mods to fit it .
Has any one turned the daddy screw on the back of the pump yet then ?!?!?!
 
Wizzywill said:
Just got a very very big cooler for mine just need to do some mods to fit it .
Has any one turned the daddy screw on the back of the pump yet then ?!?!?!
Click to expand...

not yet, but seriously considering it after fitting steel modular's with 265/75 R16's which have changed my gearing and killed the performance I gained doing the pump mods. :0(
 
V8jon said:
I've had my 300tdi auto for a few months now and have had to put up with it beign like a snail setting off,so bad when cold I've had to put it in low to get up the hill out of the street!
So after searching the web and reading all the info I decided to "tweek" the injector pump, and all I can say is "wow!". What a difference,it's like a different motor now. Before it was pathetic, even dangerous setting off and up hills it was terrible,put your foot down to keep your momentum and it would not have enough guts to keep it in top gear so it would kick down a gear which is great,ease your foot off and it would go back in top a little too early and you'd have to kick down again and so on and so on, so you can imagine what it was like up a long hill.
Now it's got lots more pulling power so setting off is totaly at the other end of the scale,it goes like stink! And it's definitely got more grunt all through the revs so uphill you don't need to put your foot on the throttle as much so kickdown isn't used as much.
As for fuel consumption it seems to be the same,I've done the same 60mile journey to work and it dosn't seem to have used any more.

Definitely worth thinking about and it only takes 20 mins to do!
Click to expand...
Nice post, but not really relevant to the OP's question as he has a 12J engine which has a totally different pump, and the problem is excess smoke rather than poor performance.
 
Great thread..... im going to try this in the morning

but before i do, i have had a complete engine refurbishment and a second hand turbo, it feels really sluggish atm, i can hear the turbo and it sounds fine, but its really struggling to get up to 3k revs, is there anything to adjust before i attempt to tweet the fuel system? (im thinking loose cable or something like that)
 
martin1512 said:
Nice post, but not really relevant to the OP's question as he has a 12J engine which has a totally different pump, and the problem is excess smoke rather than poor performance.
Click to expand...

I think you got a little lost following a link :eek:

mastersdave2 said:
Great thread..... im going to try this in the morning

but before i do, i have had a complete engine refurbishment and a second hand turbo, it feels really sluggish atm, i can hear the turbo and it sounds fine, but its really struggling to get up to 3k revs, is there anything to adjust before i attempt to tweet the fuel system? (im thinking loose cable or something like that)
Click to expand...

The cable is a simple set up and easy to see if you have full movement on the pump. Might be worth checking the pipe that runs from the turbo to pump as the vacuum is what moves the diaphram and alters fueling.
 
blue beasty said:
I think you got a little lost following a link :eek:



The cable is a simple set up and easy to see if you have full movement on the pump. Might be worth checking the pipe that runs from the turbo to pump as the vacuum is what moves the diaphram and alters fueling.
Click to expand...

Forgive me, sometimes i need things spelling out to me, are you saying to adjust the rev range i must check that the throttle cable is tight enough? rave manual says 1.57mm of free play?
 
mine is manual, i have just had a look at it, when the pedal is fully depressed the throttle arm wont move anymore, so im presuming that is ok, whats the adjuster with the 2 springs next to it?

the other 2 adjusters i have is the idle speed and the max fuel adjustment,

any ideas on why my car wont rev past 3250rpm?
 
Last edited:
mastersdave2 said:
mine is manual, i have just had a look at it, when the pedal is fully depressed the throttle arm wont move anymore, so im presuming that is ok, whats the adjuster with the 2 springs next to it?

the other 2 adjusters i have is the idle speed and the max fuel adjustment,

any ideas on why my car wont rev past 3250rpm?
Click to expand...

ok followed you thread to the 't', wow what a difference, i can now rev under load to 3800rpm (i never go that high usually 2500 tops) pull of is superb, no smoke, dont want to push my luck too far atm, i turned the smoke screw 1 1/4 turns, i turned the gear inside 90 degrees and adjusted the diaphragm 90 degrees too (i think as the diaphragm was stuck to the top part of the housing) but still no smoke, i have noticed a bit of play in my turbo again!!!! ggggrrrrr still having trouble with damn turbos, is it normal to have a small amount of oil in the intercooler hose and on the outlet of the turbo?
 
mastersdave2 said:
ok followed you thread to the 't', wow what a difference, i can now rev under load to 3800rpm (i never go that high usually 2500 tops) pull of is superb, no smoke, dont want to push my luck too far atm, i turned the smoke screw 1 1/4 turns, i turned the gear inside 90 degrees and adjusted the diaphragm 90 degrees too (i think as the diaphragm was stuck to the top part of the housing) but still no smoke, i have noticed a bit of play in my turbo again!!!! ggggrrrrr still having trouble with damn turbos, is it normal to have a small amount of oil in the intercooler hose and on the outlet of the turbo?
Click to expand...

Yes because the breather from the cylinder head feeds into the intake hose from the airbox. You should only have a max of about 1mm of play in the turbine in the turbo.
 
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