My turbo keeps spitting its bolts! NOW FIXED

thats bottom mounted. wastegate may stick out of the top thats all

 

Owen Developments have changed the people who do the castings also to the people who we use for our 20v manifold. Maybe the first supplier was a little short of nickel content

 

I don't have water or meth inj yet but am looking into it

And yes I am aware of my need for egt gauge and wideband, will deffo be getting em plumbed in

Bill, which egt do you sugest? Will it be ok to mount the probe into downpipe or is that to far away from head?

Or should I drill and tap into manifold?

And what is the opinion on my housing, will I be ok using it as it is or do I need a new one?

 

Also I am thinking of ceramic coating hot housing and downpipe in and out

 

the same foundry who has made the JS mani for last 5+ years you mean?
is that supposed to not crack then, cos I have news for you, and one to exchange in which is crazy paved it has so many cracks.

 

personally to me that housing is junk.. especially given how much hassle it is to fit. If its cracked now, what will be happening when the things expanding and contracting when uber hot? it may close up or open up, either way its a leak path which will promote failure faster. If it was my car I woudl get a new one from Owens, and if they have a better Ni content casting, then all the better.

EGT immediately on downpipe is ok direct to turbine flow discharge. Ideal is in the collector, but I would'nt want to be drilling the cast manifold and giveing it any more reasons to stress crack propogate than it already has running high power.

EGT's post turbine in that downpipe you do not want to see more than 900'C ever on the IHI style fitment, even less so if underslung as heat is confined and extreme. My GT35 is recording 730'C egt on DP outlet, where my previous FP turbo's were +100'C more same boost levels.

I would not ceramic coat the housing personally, manifold and downpipe I do on mine but mine are tubular collected. www.zircotek.co.uk do mine. Superb durable heat resistant zirconium flame sprayed coating.

 

Thanks for your advice Bill, much appreciated

Guess i will be on fone to Owens again and order new housing

Jabba manifold is ment to be ceramic coated from new, right?

I will do the down pipe, that should help to retain the heat better and make for better readings from egt probe

 

Thanks for your input Bill...

JabbaSport offer a full 5 year guarantee against structural defect as long as the vehicle has been mapped by us.

Sambo.
Our manifolds are ported and flowed and then the inside is ceramic coated yes.

 

well it was, and did crack whilst JS mapped
It was'nt 5 years old when it cracked.
If I return it then you will replace it yea?

thats a very sound warranty if so. Good on ya

let me know what I need to do to exchange this one if you may.
thanks

 

JS mani has a sort of internal coating yes. It did not last long on mine. Not the same coating as zircotek.

Zircotek ceramic coating keeps the heat inside, and slows the rapid heat/cool, expand/contract cycles, which is what in the main propogates fatigue stress cracking.

Std manifolds and turbo's crack often also.. so its not a BT only thing.

Given your housing cant be that old, I would hope Owens would do something favourable on a new one for you. (especially if the bolts and clamp rings let go also)

good luck with it.

 

Thanks for all your input lads

I'm waiting for a phone call from Owens, i'l try and blag a discount for new housing

Krazykev... do you work for jabba than?

Is it worth me recoating manifold inside?

And should i coat downpipe in and out or just in?

Thanks again for all your advise lads, much appreciated!

 

I will do bud, cheers

Just spoke ot Owen dev, priced up housing..... Around 300 + vat + p/p!

No room for discount as aparently they dont make any money on them

Someone please tell me i dont need a new one![:^(]

 

its defo a vf series housing? i have a vf22 ihi housing it was brand new never been used but its a bit rusty now, if it any good to you, yours for 50 plus p&p???

 

Not really sure if it same

Housing is made for Owen Dev and wether it would fit to my turbo is unclear

Here is a pic with markings on it, if you could give me some measurements i can check my housing tmrw when back home

 

Few more pics for reference

 

looks very similar, i `ll dig it out tomorrow

 

its not a VF housing. that turbine is bigger than a P20 housing from those pictures.. and has to be larger given it flow so much more.
Is it even an IHI turbine wheel?

On the hybrids I used (FP green/red) the exhaust housings were for mitsi turbine wheels, mated to garrett compressor wheels

Does your turbine wheel look like this one?

not cracked like this hopefully. - lol


also see here for more pictures> http://store.forcedperformance.net/...uct_Code=NTSUBFPGREEN&Category_Code=WRX-Turbo

 

i`m afraid mine isn`t the same, its got the clamp section in the middle rather than bolt on,
sorry can`t i help

 

Thanks for offer anyway bud but i thought it would be different

Bill, yes turbine looks like that, it has 10 blades, and thank f**k it's not cracked like that

Preety sure Owens said hot side is ihi so i presumed turbine would be ihi

Looks like i'l have to bite the bullet and get new housing

If same thing happens in future and cracks apear with egt-s not going over 900 celsius as i will have the gauge i will look into different turbo with a refund!