Hi all

Sadlebag here, i have a yellow st205 wrc and i spoke to some of you at japfest. (your much nicer than the guys on the OC.

I had a bit of a hickup on the way to the show though as my turbo decided it didn't want to play anymore and ive blown the oil seal.

Currently on the hunt for a new turbo but should have one soon enough but im thinking if it is a good idea to change the down pipe and exhaust at the same time.

Thinking of going for a Japspeed 3" exhausts system with a 2.5" down pipe (trying to avoid the boost creep issues than can arise). Any thoughts on this? Also is it better to remove the turbo with the cat attached or is it easier to remove the turbo seperate from the cat, i figure if i am tacking and changing both of them them may come out easier as one?

I'll get pictures of the beast up soon

Thanks all.

picture:



and video:

hi mate car looking good when i take my turbo ff i split it from the down pipe and then of the manifold found that the be the easyest way to do it

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Hi Mr Bag, welcome to the Club!

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Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
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Turbocharging - the replacement for displacement

Not sure i like the mr bag but thanks all the same, see you live in fareham do you have a white ST205 i once had a little wave to??

@mixer cheer mate it appears its cat out first them, hate the small gaps to get some of the bolts off. Again is it best to do the same when putting it back on or can you pre fit the downpipe before hand?

Welcome to the club! Your yellow peril looks very tidy.

You don't mention what sort of mods, if any, you have, although I spot the OZ wheels (Chrono Evo?)

Regarding your turbo and exhaust. Is the turbo standard or a hybrid? If you are having it rebuilt it would make a lot of sense to go for a hybrid spec OR if you are replacing it then you could go for something like the Turbo Technics S148 turbo which uses a bespoke turbine and doesn't suffer boost creep. They used to do a single wastegate version but I'm not sure if they are still available as the recent ones seem to be mainly twin wastegate designs.

Not all turbos suffer boost creep, in addition to the TT S148 there is Owen Developments hybrids which I ran for a number of years with no problem. I used a Hayward & Scott 3" downpipe and front section mated to a Blitz NUR Spect Type R 75mm centre and back section. Personally I'm not a fan of artificially restricting the exhaust gas flow at the downpipe. Its a bit like buying a Ferrari and not taking it out of first gear!

I'm currently running a Turbo Dynamics CT26 hybrid turbo on a standard ST205 without any problems but then you'd expect that as the cat is still fitted and the exhaust system is all OEM.

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Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp

Hi there,

Nice to chat to you at JapFest.

You car looks really nice, in the pictures it seems to be a deeper yellow than some other yellow ST205's I have seen.

It's probably easier to get the turbo and cat out separately but as one job, the cat gone will make access to some of the bolts on the turbo easier.

I'd try to find a S148 single waste gate as mentioned above as an ideal solution otherwise you pay's your money and takes your choice.

If I was doing it all again I think I would either:

Get a hybrid then leave the cat in and swap the exhaust or

Get a hybrid and swap the exhaust for one with a sports cat in it.

Given the recent MOT changes it looks like its going t overcome harder and harder to pass. I am planning having a sports cat fitted to my exhaust at some point soon.

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GT4DC Events Co-ordinator
1996 ST205 UK

My car started out when I brought it as a standard car bar the MBC, it achieved 269 bhp like this.

Since ive owned it I have done:

Blitz filter with the blue samco piping.
Mongoose exhaust system - spotted the cat was charcoal when I did this.
Avance ecu (like a blitz)
Tein lowering springs
Oz chronos.

I am thinking about a hybrid turbo but I'm only aiming for about 320-330 bhp. So feel it might be wasted money.

I'll put pics up of all this when the computer has done its update.

Great looking motor, welcome.

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one other thing im getting reading of 0.85 on the lamda (lean mixture) in the high revs, could this be down to the burnt out cat at all?

Hi,

i doesn't like yellow cars, but for a ST205 i do a exception

welcome

greetz

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KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

couple of mod pics:



Did this for the fast show, spoiler is back on now



avance ecu



oz wheels



changed the rocker cover



it really needed it



charcoal cat



blitz filter



duff turbo



probaly caused by this



first mod was the infills and club stickers



how i got her

Hi,

you can run a full 3" exhaust without problems, but once you go with a group A spec intercooler you should be carefull, i now hit the fuelcut in fall and spring and i use the oem boost controll who normally works with 0,9bar

greetz

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KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

nice mate, looks good!

do you have your replacement turbo?

not yet just hunting one down.