Alternative CHRA turbo replacement parts/vendors (international)

[Dasquade]

First of, i didn't wanted to post in SRM's topic and nothing against SRM but i was looking around and looks there are other out there who make and supply turbo replacement parts (CHRA = compressor wheels). In the past somebody provided info of an east european compagny but couldn't find it back (did also made bigger/drilled throttle bodies). Anyway, i stumbled on this chinees compagny: OTSturbo.
http://otsturbo.com/category/product...ocharger-chra/
*Audi A8 with 39.90mm*52.66mm compressor wheel
*Audi S8 and Bentley with 43.67mm*52.66mm compressor wheel
*Audi RS6, RS7with 44.7mm*52.66mm
Rough price range is around 650-700$ for the pair internationally shipped.
I know, 'china' but apperently they are already some time in the loop.
Materials
1. Turbine Wheel
We use Inconel 713C material from state-owned mills for turbine wheel and the turbine wheel roughcasts are from the original supplier of BorgWarner.
2. Compressor Wheel
Casting compressor wheel-We use high quality material aluminum C355 and the roughcasts are from original supplier of Garrett;
Billet compressor wheel-we use 7075-T6511 from USA, or other material like Kobelco 2618-T6 if client requires.

They claim to have a long history exporting internationally...

Anyway, i'm glad SRM kinda opened the box and provide us this option. I kinda was aware of turbo 'refurbishing', but looks it isn' all that unique and always good to have competition i guess. Sadely i'm from Europe so importing/exporting isn't that ideally for me (especially if we should ship our old housing as that is only the 'cheap' solution). Not sure if SRM actually sells the CHRA itself so my local turbo refrubish shop could redrill the housing (will check soon).

Luckly my turbo's are still holding on (88.500km - +-40.000km stage 1 - 15.000km stage 2).
Offcourse my main fear is they might be lower quality but something tells me it isn't (but also makes you wonder about the 'cheap' replica RS turbo's you see online).
Anyway, just wanted to share :).

[Sean@EuroCode]

There are always cheaper options available especially direct from China:

pro - price
con - communication, warranty claim, payment recourse, does not include compressor cover repair and cnc (list goes on)

Might as well sticky http://www.alibaba.com on the top of each forum page ;)

First of, i didn't wanted to post in SRM's topic and nothing against SRM but i was looking around and looks there are other out there who make and supply turbo replacement parts (CHRA = compressor wheels). In the past somebody provided info of an east european compagny but couldn't find it back (did also made bigger/drilled throttle bodies). Anyway, i stumbled on this chinees compagny: OTSturbo.
http://otsturbo.com/category/product...ocharger-chra/
*Audi A8 with 39.90mm*52.66mm compressor wheel
*Audi S8 and Bentley with 43.67mm*52.66mm compressor wheel
*Audi RS6, RS7with 44.7mm*52.66mm
Rough price range is around 650-700$ for the pair internationally shipped.
I know, 'china' but apperently they are already some time in the loop.
Materials
1. Turbine Wheel
We use Inconel 713C material from state-owned mills for turbine wheel and the turbine wheel roughcasts are from the original supplier of BorgWarner.
2. Compressor Wheel
Casting compressor wheel-We use high quality material aluminum C355 and the roughcasts are from original supplier of Garrett;
Billet compressor wheel-we use 7075-T6511 from USA, or other material like Kobelco 2618-T6 if client requires.

They claim to have a long history exporting internationally...

Anyway, i'm glad SRM kinda opened the box and provide us this option. I kinda was aware of turbo 'refurbishing', but looks it isn' all that unique and always good to have competition i guess. Sadely i'm from Europe so importing/exporting isn't that ideally for me (especially if we should ship our old housing as that is only the 'cheap' solution). Not sure if SRM actually sells the CHRA itself so my local turbo refrubish shop could redrill the housing (will check soon).

Luckly my turbo's are still holding on (88.500km - +-40.000km stage 1 - 15.000km stage 2).
Offcourse my main fear is they might be lower quality but something tells me it isn't (but also makes you wonder about the 'cheap' replica RS turbo's you see online).
Anyway, just wanted to share :).

[uBu]

That got my attention. Thanks for posting the info

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[Dasquade]

There are always cheaper options available especially direct from China:

pro - price
con - communication, warranty claim, payment recourse, does not include compressor cover repair and cnc (list goes on)

Might as well sticky http://www.alibaba.com on the top of each forum page ;)

Fully understand Sean :) (and again, big respect for the things you guys did and still planning etc!).
Again, untill i read about your CHRA i was totally unaware if it (i kinda knew it was possible, many turbo refurbish shops around the world, but still small market...). Personally it is a bit hard to first find a decent cold side housing, ship it, get it fixed, ship back (not something you can do if all of the sudden car breaksdown) . Money wise (taxes) but also time wise.
I just have to correct you on one thing, communication is so far superb (half houre after i sended a message over whatsapp they got back to me and we talk decently long periode in detail). Same thing back when i connected the russian guy for my catless downpipes, etc.... I need to be carefull what i say, but i almost have to say communication with those kind of shops are very good :) (before - during - after service).
PS: forgive me but still waiting on price quote for the coolant pump Sean ;). But understand you guys are super bussy! (respect and just saying).

[Hofahome]

Why not just buy the turbos from here and use the chra and housing?


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[blinx9900]

I’ve seen a lot of these Chinese turbo’s on the Honda forums back in the day. Maybe they’ve improved but we saw a lot of very dangerous failures.

[brian_216]

Please dont do this. The car itself is way too high end to be chancing china turbos. Go OEM or SRM has a nice option. You dont have to ship the whole turbo to him either. Just the compressor housings. And if the housing had contact with the wheel it really doesn't matter if you are upping them from stock S6 S7 to the RS spec. So shipping them there and back wont be nearly as bad as you think. SRM is also offering a warranty, or at least he was. The chinese option scares me. Dont walk away from that idea, RUN!

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[Dasquade]

Please dont do this. The car itself is way too high end to be chancing china turbos. Go OEM or SRM has a nice option. You dont have to ship the whole turbo to him either. Just the compressor housings. And if the housing had contact with the wheel it really doesn't matter if you are upping them from stock S6 S7 to the RS spec. So shipping them there and back wont be nearly as bad as you think. SRM is also offering a warranty, or at least he was. The chinese option scares me. Dont walk away from that idea, RUN!

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I know Brian and the quality is the thing that scare me aswell (even if they gave me a free set to try, not sure if i would want to try them :p ).
Wondering if Sean/Eurocode would be up for selling me just the CHRA itself and let my local turboshop do the house drilling to spec.

[IowaRS7]

I know Brian and the quality is the thing that scare me aswell (even if they gave me a free set to try, not sure if i would want to try them :p ).
Wondering if Sean/Eurocode would be up for selling me just the CHRA itself and let my local turboshop do the house drilling to spec.

There is a company out of Lithuania that will have an option that might meet your needs. They just ran under 10 sec at the Unlim 500 at the 1/4 mile mark with tuning from ECC in their RS7.

[Dasquade]

There is a company out of Lithuania that will have an option that might meet your needs. They just ran under 10 sec at the Unlim 500 at the 1/4 mile mark with tuning from ECC in their RS7.

That is most likely that other compagny i was talking about but couldnt remember the name.
Mind want to tell the name again (can do in pm or here).

[Hofahome]

Just to be clear, the thread was about alternatives and I wanted to present one. Not saying it is a good choice. You could always send the cheap chinese stuff to a quality turbo rebuilder to rebalance or even upgrade to billet wheels, ball bearings, etc. But that still doesn’t mean you know the quality of the parts like turbine wheel. In the end you would still likely save money over oem/srm chra’s but probably always drive around with the feeling that the turbo is gonna go, which I think most people here agree would not be worth it, especially on this type of car.


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[Dasquade]

IowaRS7, received your pm (briefly check the provided compagny....but your original post leads me to think it was different company).
I think it was this company: https://www.turbosystems.info/ (found it back in my 'likes' on fb).
Contacted them regarding CHRA or upgrade :).

PS: offtopic but that is their upgraded (drilled) throttle body i was refurring too :).
https://www.turbosystems.info/produc...-throttle-body
(maybe a tip for Sean ;) )

[IowaRS7]

IowaRS7, received your pm (briefly check the provided compagny....but your original post leads me to think it was different company).
I think it was this company: https://www.turbosystems.info/ (found it back in my 'likes' on fb).
Contacted them regarding CHRA or upgrade :).

PS: offtopic but that is their upgraded (drilled) throttle body i was refurring too :).
https://www.turbosystems.info/produc...-throttle-body
(maybe a tip for Sean ;) )

Yep, the one I noted is the IG to check out that is using some of their parts.

[Dasquade]

Yep, the one I noted is the IG to check out that is using some of their parts.

Ah understand! Cheers :).

[nvygw171]

Yep, the one I noted is the IG to check out that is using some of their parts.

Dang you find the good stuff. Anyone have this?

[Dasquade]

Dang you find the good stuff. Anyone have this?

Still need to call them on whatsapp, but didnt had time yet.
For the moment he told me they dont really sell seperate CHRA's and turbo has to be shipped, but will check over phone what is possible (including custom 'rs' type turbines with ceramic bearings).
Will ask about the drilled out throttle body aswell...

[Dasquade]

Okey, so i called...they prefure doing all work in house, meaning drill and asemble the turbos themself. They can provide the cold side turbo housing but request the old one after install. Rs type turbo: 1040€/pair.
Throttle body: he told we wouldnt see much again on the s6 even tuned stage 3, maybe slighty when upgrading intakes aswell but no insane numbers.
Hope this was helpfull ;).

[Dasquade]

Offtopic: drilled out throttle body: 250€ for drilling + return old throttle body.
FYI, they mostly do rs stage 2/3 upgrades. Those have ceramics bearings, on s6 stage 3 he told normal bearings are fine enough (turbine not that heavy compaired to rs+ turbine).

Side info: he also is aware of the poor prefacelift oil screen but told frequent and good quality oil intervals (+-5.000km) should prevent failure. Warm ambient countries are bad for the oil/turbos.

[wwhan]

...Side info: he also is aware of the poor prefacelift oil screen but told frequent and good quality oil intervals (+-5.000km) should prevent failure. Warm ambient countries are bad for the oil/turbos.

Wow, every 3100 miles, that's the rate we did oil changes 30 years ago with Dino oil.

[Dasquade]

Wow, every 3100 miles, that's the rate we did oil changes 30 years ago with Dino oil.

Or dont...but dont come crying your turbos failed! ;)
Again, lots depent on oil quality, ambient temps (maybe those that had failed turbos should add their locations and hotest/coldest ambient temps, amount of cold starts and cool downs etc....
Not saying 5.000km oil intervals will keep them fail proof, but lets face it, its a 'sports car' and those need maintance (oil change isnt the end of world!). Friend of me with 2.0l tdi bmw had two failed turbos over time, since then and on recommandation of mechanic....sooner oil change.

[brian_216]

Offtopic: drilled out throttle body: 250€ for drilling + return old throttle body.
FYI, they mostly do rs stage 2/3 upgrades. Those have ceramics bearings, on s6 stage 3 he told normal bearings are fine enough (turbine not that heavy compaired to rs+ turbine).

Side info: he also is aware of the poor prefacelift oil screen but told frequent and good quality oil intervals (+-5.000km) should prevent failure. Warm ambient countries are bad for the oil/turbos.

I'm confused by part of this. You said the turbine is heavier on the RS? On the S and RS turbos the turbine (hot side) are identical. It's the compressor wheel (cold side)that is larger. And the bearings are more for faster spool than handling additional weight.

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[Dasquade]

I'm confused by part of this. You said the turbine is heavier on the RS? On the S and RS turbos the turbine (hot side) are identical. It's the compressor wheel (cold side)that is larger. And the bearings are more for faster spool than handling additional weight.

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My bad (still need to learn the difference between turbine and compressor terms ;) ) and i meant the 'hybrid' (rs+ upgrades). Indeed, it is indeed mostly the faster spooling that requires or benefit the ceramic bearings (altough the slightly heavier compressor wheel would wear out normal bearings).

And my bad on the throttle body, the guy didn't recommanded it for the S even stage 3. Cmg_r checked with MRC and they told to not touche the throttle body at all (regarding air/fuel ratio....unless it get custom tuned for that i would think?).

[lapsandwich]

Hpa Motorsports offers a hybrid set up as well.

[Dasquade]

For those interested and again, don't want to rob any ones buisness or site sponsers, but i feel it is my duty inform there are 'quality' alternatives for those in Europe (and apparently Canada).
Some pictures i received from the 'RS spec' CHRA's build in house from Turbosystems.
IMG-20180917-WA0001.jpgIMG-20180917-WA0000.jpg

[Hofahome]

Sorry to bring back an old thread but I have been doing some research online about sourcing the RS CHRA’s. So far it looks like srm and hpa both sell them. With that said I think they are either knockoffs or rebuilt oem turbos given that they use what appears to be billet wheels. The oem rs6/7 turbos use cast wheels iirc.
IHI has a subsidiary in china called wuxi ihi turbo ltd. Their website is not really helpful in determining what parts they make. Interestingly they are located in Jiangsu province, which is where the other “knockoff” or “aftermarket” shops are as well that you can find online. To be honest OTS turbo looks like they have their shit together. They even use imported aluminum from the US for billet wheels due to better characteristics. I actually emailed them to see if they have the RS6/7 compressor housing because I only see they have the CHRA. Btw it’s kinda cool to see the size difference of the compressor wheels on the s6/7 chra vs rs6/7 chra on their website. See pics below.
With all this said, I am still looking at how to source a new OEM RS chra and compressor cover from IHI.






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