50 replies to this topic

[Sambo1]

Hi If you look towards the back of the engine bay you will see a big silicone pipe that bends down towards the turbo. You will see a jubilee clip which you will need to undo. once you have undone it just pull it up (mine would not move, going to have another crack later on) Honestly mate go have a feel around and you will soon know what were talking about Sam

[MrSimba]

I'm glad someone else asked where it is first

I looked yesterday fettled all around the pipe and gave up

anyone care to guide me round this pic or photoshop a nice big arrow on it for us non-mechanical types!

[daggles]

I'm glad someone else asked where it is first

I looked yesterday fettled all around the pipe and gave up

anyone care to guide me round this pic or photoshop a nice big arrow on it for us non-mechanical types!

Sorry about the shaky hand.. it's behind the heat shield. It can be quite a pig to get off the first time. If yours wont shift, undo the other end at the AMM, that gives you lots more wriggle potential. You'd think having taken it of before, next time will be easier but it's not. I gave mine a very light smear of vaseline before I put it back.

[MrSimba]

Cheers Daggles

Edited by MrSimba, 15 September 2008 - 06:37 PM.

[cheeky_chops]

I am 99% certain the housing is the same, just the internals differ. Will measure

just thinking about doing this and remembered i havent got a car atm (2 weeks est.) - DOH!!!! Anyone got 10 mins and some vernier calipers?

[Cookies220]

Cheers Daggles Will have a root around this weekend.

[Neil H]

Just had a look at mine and was pushed as far down as it could go. Managed to pull it up after a lot of persuasion (I found putting my left foot in the boot and right foot on our recycling bin helped me get just enough leverage on the pipe ) , but haven't tried it out yet to see if has made any difference. Will have a blast tomorrow. Cheers daggles

[MrSimba]

Got round to checking mine this afternoon (now I know where to look ) And it was pushed down about an inch, 5 minutes later all sorted and the car definatly feels more responsive and smoother!

[siztenboots]

IMPORTANT : After removing inlet pipe DO NOT DROP ANY THING DOWN THAT METAL PIPE IF THIS HAPPENS DO NOT START ENGINE

[Neil H]

Just had a look at mine and was pushed as far down as it could go. Managed to pull it up after a lot of persuasion (I found putting my left foot in the boot and right foot on our recycling bin helped me get just enough leverage on the pipe ) , but haven't tried it out yet to see if has made any difference. Will have a blast tomorrow.

Cheers daggles

It has worked a treat

Car does feel smoother and more responsive now when hitting the loud pedal.

[Sambo1]

Mine WILL NOT BUDGE Back on track had a little go and think its melted on there a little bit as they were both swinging off it... = anonoying maybe i might have to buy a new pipe and cut the old one off !! Sam

[daggles]

will pull mine out, good idea!!

Some people on the astra forums also knife edge the metal inlet pipe on new turbos. Though you have to be very careful that the waste doesnt get ANYWHERE near the turbo!!!

I had the same thought so I made this instead



it just stands on top of the inlet pipe and does the same job, no risk of junk in the turbo and you can do it with the turbo fitted

Can you knock any more up??

If I can find any more material, this was the end of a solid bar

Managed to get one more out of the offcut. PM me your address and I'll pop it in the post, let me know whether it fits ok.

[Cookies220]

Did mine yesterday Was a bugger to get off initially. Took the heat shield off and propped the bonnet higher up to get a better purchase on the pipe. Response does feel better I must admit. This should be up there with the sock mod as a 'must do' modification. Nice one!!!

[p4cks]

I have just done this. Took me all of 2 minutes. Turbo is now quicker on pickup and throttle response is a lot better. Superb work

[severnless]

had a go at this myself, mine was shoved right the way on!! so lifted it right off on the edge (width of the jub clip) results yep its quicker on pick up and best of all it's freeeeeee 1 negative though the 4k flat-spot is more pronounced than it was before hayho Daggles

[MrSimba]

thats odd... I had a very slight 4k flatspot before and now its gone!

[Sambo1]

thats odd...

I had a very slight 4k flatspot before and now its gone!

Just managed to get mine off and it has made a diffrence. I have also found my 4k flatspot to have got a little better.

[cheeky_chops]

Did this today - still getting back into the swing of things, feels smoother and not as "choppy" coming onto boost Mine was pushed right down, i also added Daggles "patented" adapter ( ) so guess it all helps to smooth out the flow - just touches 18psi at overboost. Wasnt enough to loose a mitsu evo up my chuff earlier DOH! Seemed to pull away 1st blat, then the heat must start reeling the power in.... charge cooler and other bits will see to that!!

Edited by cheeky_chops, 18 October 2008 - 07:09 PM.

[Duncan VXR]

Paul you want to get that map sorted after fitting the charge cooler and have it spiking to 24psi and holding 18psi like mine jap taxi would not get away then

[cheeky_chops]

thats the plan can feel a LSD is needed too soon