Sloss sti

Hi there guys would be appreciated if anyone could help me here. I have a boost creep problem driving me nuts. Bought the car totally standard it's a forester sti 2006. Took it to Ian litchfield for a ecutek remap and a miltek dcat from the manifold and the cars been boost creeping ever since. I live in Scotland And now have then took the car to hypertech spent a a fortune in there aswell to try sort it. They have put on prodrive sportcat front pipe on and Ian litchfield sent up a miltek centre section sportscat to make sum back pressure to try and solve the problem. But the problem still there but not half as bad. Hypertech believe its problem with wastegate on the turbo. Can anyone give me some information getting this problem solved? I believe it could be the ecutek remap any ideas guys?? Thanks very much sloss sti :-)

piehole1983

iTrader: (7)

By the sounds of things you maybe need the turbo wastegate ported to allow it to flow more gas away from the turbine.

piehole1983

iTrader: (7)

Out of curiosity, what type of turbo have you got fitted?

Sloss sti

Thanks for the reply am sure it tdo4

piehole1983

iTrader: (7)

It's probably gonna need ported. I'm sure people with more experience will be along soon enough with suggestions though. The TD04 can spool mighty quick as it is but decatting the up/downpipes can cause trouble. Certainly happened to me anyway! I never actually got to the bottom of it. I parked mine up for the winter and have got a TD05 and a new up pipe.

Sloss sti

Cheers mate for the info. But does porting it not make the turbo weaker? And how much did you pay for your tdo5 if you don't mind me asking and was it brand new? Thanks slossy ;-)

piehole1983

iTrader: (7)

No it won't do the turbo any harm at all. You only need to open the wastegate port up by a couple of mm at most.

My TD05 was a used one bought from a member on here for £50 plus postage. It was in good condition but I'm rebuilding it with new bearings and seals anyway while it's off the car. I also had to modify the compressor housing to front entry instead of top entry as the majority of them are as standard.

stevemoir

iTrader: (24)

A 2.5 forester sti 06 UK?

Surely that wouldn't have a td04 on it? Would of had a bigger turbo 43 perhaps

Steve

piehole1983

iTrader: (7)

Good point

Sloss sti

The cars a jap import it drives poorly now and really heavy on fuel less than 200 miles on a full tank not even on much boost before the remap and exhaust it was driving good the turbo defo is a tdo4. Thats why I thought it was maybe because remap

stevemoir

iTrader: (24)

That's odd it's had a change in the past then

Must of had a single scroll dp the tdo4 single scroll and the cat back

As the jdm versions run different length exhausts

So. Something is amiss

Bet you someone has wanted to make some extra Money trading it in and selling the twin scroll setup separately

Steve

Sloss sti

I imported it through newera imports car was driving great just in need of a bit more power. Ian litchfield mapped it and put on a 3inch miltek decat for the manifold and the problems all begain :-(

stevemoir

iTrader: (24)

Ah right you got a print out of the remap?

Steve

Sloss sti

He never dyno it just gave me a receipt ecutek map and exhaust charged me £1500 and had me waiting around for seven hours and had the cheek to tell me to take it easy on the way home as it was six drive home :-(

stevemoir

iTrader: (24)

Did he road map it? Sounds like typical Litchfield

If you had an r35 you would of been waited on hand and foot. Guy needs to remember where he has gotten to now because of the subaru folk

Steve

piehole1983

iTrader: (7)

Sounds like something is amiss indeed! Better get the car off to someone that's gonna do a proper job. The TD04 being present would be a bit worrying to start with. Maybe get the map sorted out and go from there.

Sloss sti

Thank you very much I had a war with him on the phone tell him he's wrecked my car and his head is to far up they skyline's backside. So he sent sportscat centre section up and said that would cure the problem because there would be more back pressure . But am still no further on . Was go to put the standard exhaust on to see if that would ?

piehole1983

iTrader: (7)

You could try it mate but I doubt it'll help much. You've got more gas coming out of the engine and the turbo can't vent it away quick enough to stop the boost creep. Do you know what the boost pressure is set at?

Sloss sti

Don't even know how he mapped it he drop me in Cheltenham town centre for 7hours and I had to get cab back to yard.

piehole1983

iTrader: (7)

Jesus, he might not have even mapped it! The ECU is probably in turmoil with all the physical changes to the breathing of the engine. Are there any mappers near you at all?

Sloss sti

Not sure mate if take mapped off will the boost creep stop ?

piehole1983

iTrader: (7)

Well there's a possibility that if the boost was lowered it might help but really it sounds like the boost profile is all wrong. The wastegate duty needs to be looked at and sorted out. As I said before I had an overboost issue where my WG couldn't react as fast as the turbo could spool if that makes sense. Porting would help me too. But your map sounds as if it simply isn't set up properly to manage the turbo appropriately.

Sloss sti

Yeah but there saying if he put a ecutek remap on it they have trouble trying to read it if that make sense . It has been on the dyno though and looks fine but soon as hit the roads with the load it boost creeps

Sloss sti

That's what I thought it's the map that's set up all wrong.

Sloss sti

It's £50 to get it removed I think that's best option for now.thanks for the info guys

piehole1983

iTrader: (7)

Sounds good mate. There are other (free) ways to map the new ECU's as well. Check them out!

piehole1983

iTrader: (7)

Keep us posted!

Sloss sti

Cheers guys will do. It's lovely car drive aswell it's shame am gutted I spent load of cash getting it mapped and trying to sort the problem :-(

piehole1983

iTrader: (7)

It's very disheartening when things don't go quite right. Good luck.

Sloss sti

Hi guys just to keep you's posted changed my exhaust back to standard and my car is holding boost bang on 1.0 bar am really happy thanks to guys that given me the info :-)