The TTE400 is a hybrid turbo upgrade from TheTurboEngineers, designed to transform the classic Porsche 964 with modern turbo technology. Based on the original K27 KKK turbo, but completely re-engineered with the latest-generation billet compressor wheel and high-flow turbine. This upgrade literally brings the 964 into the 21st century — with more power, faster Spool-up and greater efficiency.
The original K27 forms the basis, but at the heart of the TTE400 is a billet-machined 7+7 compressor wheel with a 63 mm inlet. This advanced geometry delivers a higher air mass across a wider rev range, resulting in more torque and linear power delivery. On the exhaust side, a BWTS high-flow turbine ensures lower back pressure and improved gas flow.
The BWTS bearing system ensures stability and durability at high revs and during prolonged use. Each turbo is carefully balanced using TTE’s high-speed VSR technology, with all components individually tested to far exceed OEM standards.
Advantages
• Based
on the original K27 KKK turbo• Billet 7+7 compressor wheel (63 mm inlet)
• BWTS high-flow turbine•
BWTS bearing system for greater reliability•
Power: 400 hp possible•
Faster Spool-up and improved efficiency•
Individually VSR-balanced with test certificate•
Software recalibration required•
Plug & Play installation•
Made in Germany
Contents
• turbo upgrade
Frequently Asked Questions
How much power does the TTE400 deliver?
The TTE400 is designed for 400 hp, depending on tuning and fuel quality.
Is this upgrade Plug & Play?
Yes, the turbo fits onto the original mounting points of the Porsche 964.
What are the advantages over the standard K27?
A more modern billet compressor design with higher airflow, faster Spool-up and greater efficiency across the entire rev range.
Does the ECU need to be modified?
Yes, software recalibration is necessary to utilise the full power and efficiency.
Is the turbo tested and balanced?
Yes, each turbo is individually balanced and supplied with a VSR balance report.
Available options
• New turbo (3–6 working days)
• I’ll send in my old turbo (20–40 working days)
