In stock Audi VW Turbocharger - Borg Warner 06F145702C Audi VW Turbocharger - Borg Warner 06F145702C
The ko4 I have is borg warner.
I have a S362-SXE and I have full boost around 2700-2900 (may be earlier, I need to dig through my logs to check). I make about 600hp and 550rwhp on pump all day every day, no e85. Perfect street turbo.
I’ve personally used the Borg Warner EFR series (the 6258) and the performance is incredible. I’ve never actually driven anything that has spooled so well and so quickly. It completely changes the driving characteristics with the amount of torque you get from these EFR’s.
I suppose the downside is they use dual ceramic ball bearing housings. It’s how they spool to fast. If your turbo fails, it’ll be very hard to find anyone that rebuilds them.
The heart of the CTS Turbo MK6 2.0TSI turbo upgrade kit is the Borg Warner K04-0064 turbocharger. This turbocharger is commonly used in OEM applications such as the Audi S3 available in Europe. The highlights of this Borg Warner turbocharger in our kit is the 'forged mill' compressor wheel, which brings numerous benefits to the enthusiast. The technology used in the production of these turbos provides us with a variety of benefits, reduced compressor wheel weight (faster spool), increased strength, and greater surface area of the compressor wheel. Because of the 'forged mill' technology Borg Warner can increase the effective surface area of the compressor wheel, which results in greater air flow than conventional cast compressor wheels.
You could probably get pretty close to your goal with a Borg Warner EFR 6758.
You guys should really check out that R2S, it's is MONEY.
Having driven my 2001 in both modes as well, I would say the top-end gains are where I felt a change, but even then, we're not talking 5-car-lengths in races here, folks. That being said, my K04 works nicely and the torque feels a bit more broad and I am enjoying it.
The CKRA has a smaller turbo than the CJAA. The CKRA turbo is also more prone to blowing up.
the ckra turbo is absolute garbage. You need to have an upgrade in mind because it's not about IF it'll fail but when. Regardless if it's stock or tuned. It just sucks.
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