Hey mate, I'm not going to pretend like I know everything or even anything at this point in time since I'm still in the research stage of my build . But from what I can tell about the DTUK tuning chip what happens is that you connect it in between the ECU and the engine (looks really easy to do) and you are able to disconnect it whenever you need or want to. For the 1.7CDTI I think the only system available is the Red chip. I haven't got mine yet but I'll be getting the same car so I'll be monitoring this thread and offering my input as much as I can . Regarding the K&N panel filter it seems that it is pointless without derestricting the airbox.
I'll post links to information on that in a sec .

 

Found a nice little list of links for you:
http://www.astraownersclub.com/vb/showthread.php?t=96753
Enjoy

 

Nice link you found there mate, cheers for that one

Looks like a good mod that, the airbox one... Looks like they could be put back nicely for services and handing the car back over

Still quite amazed that it seems no one has fiddled with the wastegate actuator at all?

 

That's a very good point I would have thought that people would have played more with the turbos. Have to wait for someone with actual knowledge to give a reason for it I'm afraid!

 

I am looking a remap from Celtic tuning, I have emailed them and got the following result-
'The 1.7 CDTi we can take from 100bhp up to 140bhp and from 177lbft torque up to 248lbft torque giving a very impressive performance gain and all within safe design tolerance of the engine and drive train components.

All of our software has been developed using a MAHA LPS 3000 rolling road. This ensures performance accuracy, reliability and also that your vehicle is MOT compliant for emissions testing.

The cost of the remap is £360 all inclusive for which we travel to your location whether it is home or work place. This comes with a 14 day money back guarantee which gives you plenty of time to ensure it is exactly what you are after.'
Sounds very good for the money- has anyone got any feedback about the company?

 

Wow that sounds awesome, what I would like to know though is whether the DTUK box would stil be yield some form of improvement over those remapped results. I'm going to give then an email regarding that. Because if you can't then it seems kind of pointless dropping £360 on the tuning service if the DTUK box does it better and with guarenteed results! But if we can do both

 

What does the DTUK box do for the 1.7cdti 100ps ?

Is the current 100ps engine just the latest reincarnation of the previous and ancient dti and cdti

 

The current 1.7CDTI seems to be categorised under the name Bosch which is indeed the 100ps edition and as far as I can tell the latest version of the 1.7 diesel range. For the 100ps version you get around 125ps and an increase of around 60nm of torque.

 

So its not the MY07 then, my new van is MY08 how do i check if mine is Bosch

 

That's a damn good question! I'm not really sure, guess we have to wait until a more informed individual posts a response!

 

i tried out the cdr+ box and also the red box and my car through a wobbly with it. I now dont have the cash to buy the box, but when i do, will be visiting andrew to test it out and everything 1st

 

i had a box from Andrew but for some reason my 1.7cdti did not like either but i beleive the red box is more suitable for the 1.7cdti.
Also i had problems getting the remap on my car as well as the ECU would not let it be remapped, if it was not for Tony at VXRPC getting the guys at EDS and getting a few maps of them i think i would of gave up tbh.

 

craig which boxes did you try out?

andrew told me he'd need more time with my car but said that he had an extension cable which would let him sit in the car and tweak it as we drove. He said he definately wanted me to go up north and spend a bit of time testing em out

 

i think it was the crd2 box i tried, even though Andrew put on some different maps on for me it still did not feel right. Sold the box to someone on here and as far as i know he has no problems with it.
But like i said before even when i had the remap done it was a right pig to get it on, so i assumed the reason the box did not like my car was due to my ECU being akward and playing silly buggers, which somehow affected the box?

 

are you sure??? i dint think the crd2 could be used with the 1.7 engine?

thought it was choice of 2 - the red or the cr+

 

Been a fair few replies going on here...

That remap certainly seems like a good deal, especially if they'll come to you and give you 14 days to cancel it...

Going back to the turbos though, as has no one fiddle with the wastegate arm at all, or put boost controllers on them at all?

Anyone know what boost they run at stock? Can't be that much...

 

The 1.7 runs boost of 1.18 bar for the 100bhp or 1 bar with 80 bhp
info comes from another forum tech spec page so not 100% sure but sounds about right

 

indeed it cant be much, you can hear it dump some of the boost at around 2300-2400rpm aswell.

.... MORE BOOST MORE FUEL!!

 

17.1psi isnt too bad.... 20 would be better with a bit more fuel though :mrgreen:

 

Jesus, that's a lot of boost for a small amount of power...

I'm still fairly new to turbos, but I'm used to petrol turbos which would give a fair old bit for 17 PSI!

But I guess this is where diesels are different

Might have to give it a go, shorten the arm a bit...

 

diesel does work differently to petrol though mate.

i cant be bothered to go into specifics, because i am too a noob, but basically the power yield is so low because the manufacturers put a lot more air in to reduce emissions.

we then come along and bump the fuel right up! and then up the boost, and up the fuel some more

 

I recently got a 1.7 CDTI 08 and after trial and error i found a remap is the best way to go. Get it tweaked right you still get real performance gains without dumping a whole load of smoke where ever you go and its just a flying wee thing on the motorway!
Last run to Leicester was 5 hours from Glasgow and achieved 55 mpg with a car full of crap!

 

Holy thread resurrection batman!!

 

Talk about bringing up a thread from the dead :lol:

 

it would be great to see a turbo thread on here im new to modding VXs land rovers are my fortaeas such lol,

i know lil tweaks wil give considerable gains with out damagin anything

 

:lol:

 

Didn't check the date before posting... And people slag you when you don't use the search function! Choose a side guys :lol: