I have tried again this morning, and i must doing something seriously wrong. i fitted the device and now it wont boost over 0.5 even when it is wound in. (told you i hadnt a clue what i was doing). the good thing is i have managed to get in touch with andrew carr who as told me he will fit it for me along with giving my car a checkout service.
so i think i will let someone who knows what they are doing do it.

just let me know if im doing this correctly. i remove the pipe from the waste gate and attach the elbow and of the DD to it instead. i then block off the pipe i have just removed ?
i then remove the pipe from the turbo and attach the other end of the DD to the nipple. do i also block of this pipe i have just removed ? as thats what i did. both pipes leading to/from the BCS are then blocked off

 

You see that last pic of the 3-port on the other page... Then if you imagine the 3-port BCS as the DD device than that would be it!

That is, disconnect the top and middle vac hoses that go to the BCS and then reattach those free vac hose ends to the DD's nipples, with the middle vac line going to the DD's 90-deg elbow.

What you have done is substituted the BCS for the DD - end of!

Also, I don't think you have to block anything off as there should be no redundant vac lines, if you follow that procedure (the blocking off thing was only for the later 2-port... because there's a T-piece involved)

 

thats kinda what i did (i think) but what i did was remove the pipe from the WG and remove the pipe from the turbo. i then fitted the DD using new hosing, thats why i had 2 hoses leading to the BCS (i then blocked these off)

are you saying i would be better to just remove the hoses from the BCS and fit the DD there? and just leave the BCS with the nipples showing ?? i have been trying to do it like the picture shows at the beginning of page 1

 

Ah right I'm with you.

I think you would need to block both those old pipes, yes - as the BCS is still getting a vac feed from the IM to the top of it (via that 4th thinner pipe at the very top)... so air pressure could escape via the 2 ports.

Also block off the BCS's bottom port as well. That way, absolutely no air pressure should be allowed to escape.

Or even simpler, just pull off that thinner vac line to the top of the BCS and block just that off instead!!!

Plus disconnect the electrical connector to the MAP sensor - it could be the ECU reading an erroneous value from it and only giving you low boost. The MAP sensor's not needed of course.

 

ha ha now you have gone and lost me again !!

but you are basically saying i am on the right tracks ? still doesnt explain why i can get it to boos over 0.5 with the DD fitted though

its really annoying as it seems so bloody easy to do.

 

Yeah you blocked the two vac hoses that you pulled off - that's fine. But also block off the very bottom '3rd port's' vac hose that's still on the BCS.

And also unplug the MAP sensor's electrical connectors and see what happens...

 

right so i block off the pipe at the bottom that is fitted on the air intake i understand that, but where is the map sensor ??

 

On that pic where it reads "restrictor in here" there's an arrow.

Right behind the 'arrow head' is the MAP sensor's electrical plug (that's plugged to the ECU's connector). Unplug this union...

 

right i will try this when i get on my break later, and let you know how i get on. also i just like to say thanks for all the advice your giving me it is much apreciated

 

No worries.

If still no luck, then remove it altogether, replace everything how it should be, and just wait for Mr C to do it properly - it'll be a walk in park for him...

 

i think i will let him do it anyway, as i dont fancy doing any damage to my car plus it will do it good for him to give it a once over as well

 

Agreed!

Ah well - we tried!

 

haha i know and thanks very much for your time,

now i read that my car would run better with the original DV on so thats something else im gonna look into doing now haha

 

Yeah defo put your OEM DV back on.

Aftermarket VTA BOVs don't give performance gains and make various strange noises All they can do is upset the motor's running. Ergo, what's the point?!

 

are they easy to refit ? is it just a straight swap or would i also need to source the original hoses ? like i said mine came with the baileys already on.

i have seen a few on e-bay for sale and they dont seem that expensive either.

 

sorry to hijack but been reading with interest.does this dawes device i keep seeing crop up mean you can simply up the boost slightly.is that right?

 

yeah it does, but for some reason despite several pictures and various folk trying to talk me through it i cant seem to fit the bugger correctly !!!

 

What does the restrictor pill do?
Is the Dawes Device a bleed valve, if so what's the difference in the £35 dawes and a £5 bleed valve?

 

Wayne, yeah easy to fit the OEM DV back on. You just need a bit of hose with 19/20mm ID. Chances are your aftermarket BOV is still using this hose!

Whatever, this hose fits to the upside down 'L'-shaped plastic pipe coming off the IC feedpipe. Then the OEM DV goes between that hose and the recirc port on the turbo intake pipe (so you need to remove the recirc port's bung). Just make sure the embossed arrow on the DV's underside is pointing to recirc port and not the IC.

Finally, don't forget to replace the vac line to the DV's nipple.

 

Great stuff, i have found one on e-bay with hoses (just to be on the safe side) for a tenner so hopefully i can get if fitted at the weekend

 

Sorted!

 

should be with me by friday so i will post how i got on then. on a side note i have decided to bin the idea of fitting the dawes device and save some money up for an up-rated ecu.

like i said previously the car is currently running at 1bar without it so the next logical step would be the the ecu upgrade.

thanks to everyone who gave me advice, and if anyone on here is interested in purchasing a hybrid dawes device that is practically brand new let me know.

cheers
wayne

 

Will you be getting a fully mappable ECU then?

 

it most certainly does once my wallet can afford one. need to do some searching as to what one is the best for me.

christ this is gonna turn out to be an expensive bloody car !! haha

 

fitted the original DV on this weekend and its was a very easy fit. got to say the car does feel better to drive now and feels much more responsive. it did seem to idle very high for a while but that has settled now.all in all i am very pleased with the outcome.

 

Good.

Has A.C. fitted and set up the DD for you yet, too?