Garrett Medium Frame Gtx Turbos

[ido09s]

Where are you from?

If your in Sydney take it into MTQ in Wetherill Park, they are cheaper than GCG, and try a genuine Garrett housing on the manifold. It wont be the manifold as the flange is a standard sizing.

The housing needs some dents in the corners to accomodate the nuts. You might fix it by grinding this housing, but you might stuff it also, so its not worth trying until you confirm if there is an alternative that works properly

Or as someone else just said you could drill the threads out and use nuts and bolts but to me its still not right. Its much easier and less hassle to be able sit the turbo on a couple of studs and use only lock washers and nuts.

Call me fussy or silly or whatever you want. i like to build cars that are easy to work on and nuts and bolts when studs should do the job is just silly

Edited July 13, 2011 by ido09s

[GTScotT]

OK quit the nonsense, call Kyle and tell him what the problem is.

The simple answer is the housing needs to go back to ATP to have a machinist surface the bolt holes so a nut can fit in place. The housing was rushed and not finished properly, simple as that.

If ATP cannot do that for you ask Kyle if he can. If not, ask for a part refund on the housing and keep it OR buy the uber expensive GCG alternative. If you get a refund on the dud housing and get to keep it, you can find a place that can do the machine work for you, but don't be conned into going to that level UNLESS you have received some form of refund.

The comment about sending someone to China is absolutely correct.

[juggernaut1]

i trial fitted my manifold/turbo setup the other night.

and you are RIGHT! it is a **milkshake** to fit.

here are some pics of the bolts that look impossible to do up unless we grint some of the exhaust housing....

what your thoughts guys?

Pretty much what others have found with that housing some years ago.

http://www.freshalloy.com/forums/showthread.php?t=186058&page=4&highlight=twin+scroll

Can probably grind reliefs in the housing if there is sufficient meat.....email Geoff Raicer as he has fitted at least one of these to a Subaru that I am aware of.

[BMYHOE]

yes im in sydney

i have called kyle to tell him he said i may have to die grind abit around that area?/

so yeah not sure what to do here

[juggernaut1]

so yeah not sure what to do here

Buy a Borg Warner twin scroll turbo.

[BMYHOE]

Buy a Borg Warner twin scroll turbo.

oi order one in march called up the supplier at the end of april - they still had no response from borg warner on stock so got my deposit back and went for this set up

DOES garrett make a T4 divided rear housing for the GTX35? when i did my homework 2months ago there was not garrett t4 divided rear exhaust housings for the GTX35 turbo

Edited July 13, 2011 by BMYHOE

[Lithium]

Don't bother trying to use studs, pull them out and use cap screws... Got a turbo with the same housing here and it's no problem.

[BMYHOE]

Don't bother trying to use studs, pull them out and use cap screws... Got a turbo with the same housing here and it's no problem.

ok ill defenly look at this, thanks.

anyone ever welded the turbo to the manifold lol jokes

[Rolls]

Just don't run an exhaust...

[bigmikespec]

Buy a Borg Warner twin scroll turbo.

S400SX

[BMYHOE]

Don't bother trying to use studs, pull them out and use cap screws... Got a turbo with the same housing here and it's no problem.

Lithium, how long have you been using the exhaust housing for?

[Lithium]

The one here hasn't been used yet, another mate has been running his for about a year and another I am not sure now... As he had been running the chra for years anyway but then swapped housing and manifold setup for response etc speaker some where along the line

[DCIEVE]

I had the same concern (and plenty of others) with the ATP twin scroll housing. It's certainly not a budget option - as far as I could find it was the ONLY option if you want a t4 twin scroll rear for a gt35.

I could have made it work but decided the swearing come time to try and get a spanner on the water/oil lines simply wasn't worth it - so I sold the housing and the gt35. A borg warner s300sx delivers nearly identical results with a much larger/easier to work on foot print.

Btw I spoke to ATP about the problem at the time and was satisfied with there response which I've included below.

Hi Nick,

Thanks for the pics.

We undestand your concerns and we want to address them for you.

We'll be very upfront with you and you can decide if it's good enough.

If it isn't, we fully understand. We thought since you took time

out to raise the issue, we would spend equal time to explain where we

stand on this.

First, we have always used a local US foundry for our castings and

work closely with them to manage the quality of these castings.

This particular model housing has been the most, stand out, difficult

to work with. Every single production batch of this part (and only

this part) has resulted in 1 or many cosmetic blemishes throughout the

casting. The issues are some or all of the things that you described.

It's partly part complexity, partly tooling, and partly competence

of this foundry's process in handling this particular part. We have

about 30 other parts that we cast at that foundry regularly and seldom

have any of these issues on those parts.

Cosmetically, we have to do a lot of "touch up" work to make these

housings externally presentable.

The coring process of these housings do lend themselves to some

internal porosity as well. Machining of these housings is also tricky

due to the particular wheel to casting combo being a retrofit.

Yes, we do know about the one dip near the tonque.

The good news is in the course of the past 5-6 years of producing

thousands of these (unpretty parts), we have yet to have a failure of

any kind. We also have never gotten 1 single complaint of it's

performance. In fact, most shop or tuner that has used this housing

in their TS kit has turned into a repeat user if their kit is in

production.

Most of these housings do end up in high end turbo kits that do get tracked.

If it eases your concerns at all, we absolutely stand behind the

product and will warranty it for 1 same 1 year peroid and fully expect

it to perform.

The geometry of the unit has been tested and proven over and over so

you should not be concerned there.

We have a lot of wall on that casting so sometimes when the porosity

is real bad on 1 spot (like on yours), we just weld it so make it a

bit more visually pleasing than a big pit. We do not weld or repair a

casting that has any chance of breaking through where we find the

overall structural integrity of the unit is compromised and risks

failure during operation.

Thanks again for writing and if you still have any doubts on this

unpretty casting, send it back for a full refund.

Otherwise, if you decide to keep it and use it, we stand behind it

100% in its operation and integrity.

Edited July 13, 2011 by DCIEVE

[Lithium]

I could have made it work but decided the swearing come time to try and get a spanner on the water/oil lines simply wasn't worth it - so I sold the housing and the gt35. A borg warner s300sx delivers nearly identical results with a much larger/easier to work on foot print.

Do you have a Borg Warner S300SX (83-75 I'm guessing..)? If so, any pics or results?

[JonnoHR31]

my atp housing was exactly the same, forgot to mention it earlier. you just have to grind the corners a bit, theres plenty of meat in the wall there. iirc though you'll have to use nuts with a 14mm head, 17 wont fit.

[BMYHOE]

my atp housing was exactly the same, forgot to mention it earlier. you just have to grind the corners a bit, theres plenty of meat in the wall there. iirc though you'll have to use nuts with a 14mm head, 17 wont fit.

ok thanks jonno, it will be play time on the weekend

[bigmikespec]

Do you have a Borg Warner S300SX (83-75 I'm guessing..)? If so, any pics or results?

+1... post in BW thread to keep on topic!

[NYTSKY]

WTF? A company selling you a product that you have to potentially f#$k up to get it to work????

Surely they would get the relief cut into them in the manufacturing process or atleast when it arrives at their factory before sending out the customer.

[JonnoHR31]

nope. i posted some pics of myne when i got it. the casting inside the housing between the 2 scrolls is pretty rough too

[GTScotT]

Unlike the Kando gear which is nearly polished.