hi i posted a week a go about a couple of problems i think i found the source today i looked at my turbo and i could see some oil around the seal plus the turbo is a bit damp so i think its the turbo so the questions are

1 do you guy think it could be the turbo

2 the car is mapped on an apexi ecu will it need remapping if i put a replacement td05 turbo on the car which is whats on there at the moment

3 and finally i was thinking of going to 450bhp could someone recommend a turbo to suit kind of bhp and would that need remapping when fitted

thanks for your time
Chris

 

What model and year etc...

 

sorry mate

1995

wrx sti type ra

forged engine 2.0l
tuned head
apexi mapped by zen
did have a td05 turbo which i think was standard

the problem ive had was 1st and 2nd if i accelerate hard i got whistle/wined
with hesitation and popping and banging then yesterday accelerated in third
boosted fine then around 6k i heard a little rattle soo i looked at my commander the knock was only 36 so put it down to turbo

if there is any other info you need let me know as i was not sure how specific u needed me to be

thanks

 

1) Could well be Do you get plumes of blue-white oil smoke out the tailpipe?

Test: after a run, come to a stop. Let it idle for 5 mins. Then rev it. Is there any smoke out the tailpipe.............?


2) Shouldn't need to.


3) SC46 Billet should get you near (mapped on V-P). Should defo do 450 mapped on V-P + 20% meth. SC46 Billet has great spool. But not sure how well the aged Apexi (albeit still a decent ECU) would map the SC46.

Obviously, a larger TMIC (or better still, a FMIC) and 740cc injectors will be required too...

 

joz8969 to be fair im a bit hesitant to drive at the moment because i started this morning and the was a bit of smoke coming from turbo where the oil is sorry should of mentioned that earlier and now u say about the smoke when i put it away last night the was smoke coming from the exhaust could nt tell color though being dark will take a look in bit and see what color it is

 

Disconnect the intake hose to the turbo. Is it very oily inside the hose and/or the compressor/nose? Grasp the shaft's nose nut and pull/push it in an in/out fashion - is there any movement whatsoever?

Also, and if you can be bothered, disconnect the turbo-to-IC hose and check for excessive oil. If you remove the IC you can check for oil in that too...

 

Hello mate as above if the turbo is giving up,the tell tell signs would be smoke,and it not being able to boost properly and whining noises movement on the shaft,blades etc....the apexi ecu should be fine i know guys with the apexi ecu running over 500 bhp.if you think it's the turbo because of the before mentioned symptoms get a second opinion from your mechanic.

 

cheers for your help joz8968 will check those things and let you know how i get on
PS already got fmic so hopefully just turbo, injectors, and another maf or ecu cause my maf is the old type and can only so high

cheers stonejedi for ur help to its defo look like turbo its better than what i thought was wrong first the gearbox

 

I have a 2nd hand Q45 MAF which I bought for my STi 5.... But got MAFless Simtek in the end, so it was never used on my car.

So that Q45 MAF is available. Thing is, I think it's 90mm dia., rather than 80mm, so you may need a collar adaptor for the air filter end. And maybe a 90-deg silicone reducer to replace the OEM MAF hose...

Whatever, the Q45 MAF + the connector/pigtails is for sale...

 

how much you looking at for the maf posted

also i do plane on buying the turbo u suggested the sc46 billet
but because low funds £1295 a bit steep at the moment and found this
as a temp fix to get it up and running again but it seems to cheap and wondered what u think sorry seem dumb i've been out of scooby tuning for Nealy 5 years. its a td05 20g turbo brand new £290 deliverd would this fit mine and is it any good

http://www.ebay.co.uk/itm/SUBARU-IMP...item231a9c2353

 

A 20g is a 370-400bhp turbo. I have one on my STi 5, mapped to 384bhp.

Thing is not all 20g's are equal (quality wise). And the sub-£300 eBay specials are best avoided! Your best bet would be to get one from Andy Forrest - pukka item with, I believe, billet comp wheels now. And if your exisiting 16g's housings aren't cracked, then he can give you money off on an exchange basis.

A 'vanilla' 20g is a bit later spooling compared to today's 400+ turbos, what with their with billet and cut back wheels, etc.

 

a nice set of shiny new "sparkies" is the way to go joz!

 

Talking of 20g's 99gw, did you eventually sell your AF billet one?!!

'Cause if not, then you have the perfect potential buyer in scooby-ra ^^^

 

its sold joz,im using md555.

 

Isn't that an 'older' 400+bhp turbo, though?!

Why have you gone for that over a AF 20g Billet?

Or is the MD555 a 420-450bhp turbo, or summat?

 

alright Ive checked the nut inside the turbo and there was no play and could not see no oil anywhere in the turbo i checked this the silver side of the turbo not the exhaust side if that makes any sense to you.
i have noticed something else though the bov seems seized its crusted where the piston is but it sound like its going off when i change gear could this cause any whining noises and is there anyway to test bov plus the car started hunting this morning when i started it

ps joz i haven't forgot the offer of the q45 maf im just trying to sort this prob and see where i go from there