| 08-13-2024, 01:04 PM | #4 | |
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| 08-15-2024, 02:32 PM | #6 |
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Mambatek S63 rebuild & upgrade parts
What would you like to achieve? If you need to rebuild your turbos, perhaps the CHRA with the OEM fit are the best options for you. Also within the OEM fit you may get better flow compressor wheel and turbine wheel + reinforced bearing parts. Even the Aliexpress & Ebay sellers are proposing the CHRAs with at least upgraded compressor wheels.
I wouldn't go performance wild with the OEM con rods, which seem to be the S63s weakest point beyond 750-800 PS / 900-950 Nm. I bought rebuild and upgrade sets from Mambatek (Taiwan), however not installed them yet into any of my cars yet. I will put the first into my E71M in few weeks. My F86 is just 30K KM these days and I plan to rebuild turbos preventively at 60K KM using the OEM fit parts from Mambatek. I have the parts already, I made the weight measurements and also some dimensions comparison. The bearing parts physically look like on the shop pictures and the full specs are always included. The Thrust Bearing has 3 oiling holes instead of the OEM 1. The brass parts are nicely polished and look very good. I can provide pictures of my parts and weight or dimensions measurements. Conclusion & thoughts Mambatek differs from the other super cheap sellers that they are offering individual high quality parts with precisely described specs, assembled CHRAs or even the upgrade Supercores. When S63 F10M/F85 turbo rebuild is needed and mild power upgrade is requested (without conrods and pistons upgrade) the most cost effective is the OEM fit 2260 CHRA DYI replacement. In case even slightly more performance is needed then the next easy and good money for value is 2867D5 journal bearing super core that requires the original turbo housings machining to fit the larger turbine wheels. I couldn’t find any precise specs of the Pure Turbos Stage 1 and 2, which are kind of benchmark for the S63 engines. The only information I found is stage 1 doesn’t require the turbine housing machining, while stage 2 does. I assume the Pure stage 1 equals or is similar to Mambatek 2267 CHRA, while stage 2 is similar to 2867 CHRA, therefore a similar performance might be expected. On top of that is the option to buy the wastegate rebuild kit, as far as I know Garrett is not supplying these parts anymore. The greatest pity is that Mambatek is not offering Ball Bearing versions right now. In June very interesting products appeared at Mambatek shop (and also on their ebay resellers). Before June only rebuild kits or individual parts were available (therefore I was buying them). The new commers: 012-0165A MGT22-28R D5 turbine wheel https://www.mambatek.com/en/products...2-28r4753825mm New D5 wheel of equal size to a normal upgrade MGT28 TW (smaller than the D5 49/55 mm). 007-1461-2 OEM fit 2260 journal bearing CHRA https://www.mambatek.com/en/products...-m5-m6-bolt-on This is just 300 USD more expensive than the OEM size rebuild kit. I think the turbo repair shops will ask significantly more for 2 turbos rebuild job even if you give them all the upgraded OEM fit size parts. 007-1462-2 OEM turbine housing fit 2267 journal bearing CHRA https://www.mambatek.com/en/products...8-m5-m6-30-air The same as above except the 49/67 CW, for the same price. The OEM compressor housing needs machining. 007-1463-2 2867D5 journal bearing CHRA https://www.mambatek.com/en/products...w-s63-v8-m5-m6 Even the turbine housing needs machining for the larger MGT28 wheel, which is D5 – 5 large and 5 small blades. Mambatek has also the same size wheel except being conventional 9 blade (see the 2867 rebuild upgrade kit bellow). 038-0981 OEM turbine housing fit 2267 journal bearing super core https://www.mambatek.com/en/products...6-v8-44l-120hp 2267 CHRA mounted to Mambatek own design L+R compressor housings. Beware this compressor housing is A/R 0.60 while all the S63 OEM versions (E70M, F10M, F90) are 0.66, therefore it should be better spooling (putting the boost threshold to lower RPM slightly). The price increase over the 2267 CHRA is 540 USD – could you get the pair of OEM compressor housings machined for such price? Plus improved spool due to 0.60 A/R. Mambatek expects +120 PS. 038-0982 2867D5 journal bearing super core https://www.mambatek.com/en/products...5-m6-44l-200hp The 2867D5 mounted to the same A/R 0.60 compressor housings, difference to the 2267 Supercore is the necessity to machine the OEM turbine housings and better top end. Mambatek expects +200 PS. Long time available S63 MGT2260 parts: 015-2501-2 OEM fit repair upgrade kit https://www.mambatek.com/en/products...-m5-mgt2260-oe I measured CW’s extended blades’ height +4.8mm and reduced weight by 3g. TW I measured extended height 2mm, however heavier by 7g. I was comparing the OEM CW from F10M and TW from E70M, both pretty worn out. However I believe Garrett used the same TW in both E70M and F10M/F85 engines. For E70M users there is a possibility to agree with Mambatek replacement of the CW by the 010-2590 wheels, which are the E70M OEM fit (extended height 6.3mm, nose is thinner by 0.4mm, lighter by 3g). The E70M CWs versus F10M/F85 do not match in blades’ geometry, they are not interchangeable – I tested myself, I was carefully putting them in the C housing. And when crosschecking the wheels’ specs it becomes obvious. I daily drive both E71M and F86, in the past I used E70M with F85 intercoolers, headers and turbos, so I can describe the impact of the newer parts design changes on the car’s behavior. E71M has a better spool than F86 and I think it is because of 2 reasons: smaller intercoolers (lower volume to be filled by the pressurized air) and 9+0 blades CW grabbing more air at the lower RPM. The 9+0 CW might be more flow restrictive in the higher RPM, therefore overall lower potential of the E70M engine. 077- 0024 wastegate rebuild kit https://www.mambatek.com/en/products...gt2260-x5m-x6m Single piece design, very nice. 015- 2502-2 repair upgrade kit size 2867 https://www.mambatek.com/en/products...-mgt2867-300hp Similar kit as the OEM fit except upgrade CW and TW. Mambatek claims + 300 PS. Garrett’s GTX Gen 2 2867 specs are easy to find online, the Mambatek should be slightly better. Due to larger wheel sizes both compressor with turbine housings need machining and the bearing housing needs machining of the compressor wheel bore to fit the base diameter. The larger wheels kit is about 100 USD more expensive than the OEM fit. The 67 CW wheel is 8g heavier than the OEM 60 wheel, the 28 TW wheel is 6g heavier than the OEM 22 wheel, however 1g lighter than the upgrade OEM fit wheel. 012-0271-2 MGT22-4955 D5 turbine wheels set https://www.mambatek.com/en/products...2-4955-49555mm Mambatek designs special turbine wheels, which have normal and smaller blades together similarly as the compressor wheel. D5 means dual 5 (5+5), while the conventional wheels are 9+0. This 49/55mm wheel is even larger by exducer and inducer than the MGT28 TW (47/53,8mm). The higher exhaust gases flow while keeping the low weight are expected. Last edited by bert2stone; 08-19-2024 at 04:05 AM.. |
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| 08-16-2024, 05:27 PM | #7 |
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Are the mambatek kits you reference a plug and play swap, is is there machining and special tools to rebuild them?
Nevermind, I read this again and see you gave me that info. Thanks. |
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