s2erst

Cheers Rob

s2erst

Well it didn't sort the problem an now im really pissed off with the amount of money I've spent on it an still not working thinking about selling up now

Rod-Tarry

How can you sell something that dont work . Why not take it to someone who has a clue what he is doing. Passionford is not the place to ask believe me.

s2erst

weather its working or not i can still sell up ill just break it. Why whats wrong with asking on here there are alot of helpful people on here.

Canada1

You fixed the large exhaust leak (hole)?
Still no boost?
That exhaust housing looks huge - I suspect a .82 AR
There should be a number visible somewhere on the turbine housing -
If it is a .82AR boost will start very late.

Try a smaller turbo to test your system out.

s2erst

Its 60/63 yes welded it up mate. when i got to 5k revs it started to boost abit but i mine about 1/2 psi but then had to change gear as didnt want to do any damage. Here is the ad with info i had on it when i bought it
http://www.ebay.co.uk/itm/2307666500...fvi%3D1&_rdc=1

GVK.

Ad says Genuine Garrett, looks like a Ching Chong China copy to me.

Conveniently polished.

s2erst

i know mate i did think that myself it has garrett on side but then again i spose easy enough to stamp in yourself

Rob_DOHC

iTrader: (4)

My 2p mate, I would send the turbo back.... having seen this car and been for a drive I would point all blame at the turbo. Whether is fucked or too big.

Id have a good look at a GT28r or similar from a 200sx.

Rob,

s2erst

im trying my mates turbo tomorrow so that will give me the answer hopefully Rob. he wont give me money back already asked mate as he says turbo was fine so Ł300 out of pocket if it turns out to be turbo. Whats a gt28 good for as you know i wanted as close to 400bhp as possible

Rob_DOHC

iTrader: (4)

TBH with you mate looking at those compression test results I would say you were running very close to standard compression which may be your limit.

GT28rs would be good for a little over 300 bhp and would be VERY responsive with your setup, a really good drive and a perfect road car.

Rob,

s2erst

I don't understand why the compression is so bloody high would that stop it from boosting

Rob_DOHC

iTrader: (4)

No mate not in the slightest.

A high compression ratio would limit the maximum amount of booth or ignition advance you could run though, to a certain extent you can run more boost and retard the timing however its a trade off.... If anything it would help your turbo spool up etc.

You would have to speak to someone who has built a high compression zetec turbo to find out when they found their det limit regards to boost/power etc.

creator

A gt28r can do way more than 300hp

Rob_DOHC

iTrader: (4)

There are a few to choose from tbh,

But the reasonably priced ones seems to come off 200sx which are actually a gt2560r (commonly called and listed as a gt28r) these are good for a little over 300bhp and a good one costs less than Ł400.

A proper gt28r or rs even used goes for over Ł600, but yes dependent upon housings etc some can do well over 300.

Rob,

s2erst

Right well tried another turbo still the same so that rules that out. think im gonna book it in at devils

Rob_DOHC

iTrader: (4)

What? thats mad mate.

Massive boost leak (and I mean massive!)
or your waste gate is open the hole time..... Now suspecting this tbh mate.

Rob_DOHC

iTrader: (4)

edit, you said you blanked off the waste gate and it still did it.......

Can you feel exhaust coming out of the screamer pipe off boost, idling etc? and what turbo did you try?

s2erst

Im running it without the external wastegate I've taken it off an just banked the hole up so it should run unlimited boost. i tried my mate turbo its just a cheap one but does the same thing take it to 5k revs an boost to about 1 or 2 psi but that's it.

Rob_DOHC

iTrader: (4)

Is it the same size turbo? and is this one straight off his car?

You problems should be simple mate. Not enough exhaust gas (so the turbo doesn't spool) OR the turbo spools and the air doesn't reach the engine. And I take it you took it up the road with this turbo on?

Now your engine runs, so you have exhaust gas lol, the exhuast manifold has no huge leaks(?) and no wastegate (internal or external) so your turbo should spool.

The fact that it doesn't imo questions the turbo. (unless as said you have a huge boost leak),

Rob,

s2erst

the turbo i used was on my mate car but said it was to laggy for his 1.6 so took it off an he said it was boosting. i cant see any leaks if its as big as you say then surly i would hear it. I did use the housing from my other turbo as i welded the hole up an theredidnt seem to be any cracks in it

project rs

the housing your using of the turbo i presume is the turbine side and what have you done with the old waste gate penny to keep it shut as i think that it is simply wide open and thats your boost leak a picture of internal penny would be good

s2erst

The hole is welded up air tight so its not that. im using the exhaust housing from my old turbo

stevos1

ry tomorrow if i get time il wip my stage 3 t3 off and as its set for my external waste gate you can try it.
the turbo he tryed is mine its a t3/4 ebay jobby far to big for my 1.6cvh but i would have thought it would be fine on a 2.1?

anyways the options there mate

s2erst

stevo that would be good mate that will be the 5th time ive taken my bloody turbo an manifold off

s2erst

Right done compression test this is what they are 220psi 210 200 210 does that sound ok

Rob_DOHC

iTrader: (4)

Is that with a warm engine and the throttle wide open?

Rob,

s2erst

thats from cold with no throttle just turning engine over

QplateRST!

This may sound very stupid but does your air filter have hose fitted to it where it joins the turbo? If so run it without as I had this problem with my car where the boost hose was closing up when trying to come on boost reading about 2psi

GVK.

Did you disable the ignition/fuel ?

You need to disable ignition/fuel and have wide open throttle to do a proper comp test.

Rob_DOHC

iTrader: (4)

Those numbers will be pretty meaningless then. The engine should be warm and the throttle wide open when measuring.

Unplug the coil pack too

Rob_DOHC

iTrader: (4)

PS your ecu will cut fuel with a wide open throttle too so don't worry about unplugging injectors etc,

Rob,

GVK.

Not being funny, but do you know anyone that could look at this for you?

Sometimes it takes another pair of eyes to see what should be a simple problem to fix, as this should be.

Rob_DOHC

iTrader: (4)

Thats not a bad point at all.

Rob,

Rob_DOHC

iTrader: (4)

tbh mate, I've had a quick look over his bay, I wasn't looking for anything suspicious at the time as we thought the waste gate was the problem, but there is nothing massively obvious.

Thats why I really suspect the turbo....

Rob,

GVK.

It'll probably be something daft when he gets to the bottom of it, but it's easy to go round in circles with problems like this isn't it?

Rob_DOHC

iTrader: (4)

Thats the trouble with these things, really difficult to diagnose over the internet too. The simpler the problem the harder you kick yourself when you find it!

GVK.

Haha so true, all it takes sometimes is someone else to have a butchers, and see something loose/missing/fitted wrong/leaking whatever and say...

"Oi you daft cunt,look at this"

s2erst

i did unplug coil pack when i did it but if your saying it has to be warm an throttle open ill have to do it again lol. i dont have anyone that is clued up enough to look at it thats the problem

s2erst

Cr turbos are picking it up tomorrow so i will find out if its that or not