997 tt/rs

Guys is it true ? The Porsche 964 RS (RS standing for "Rennsport" or "racing" in German) had several engine upgrades compared to the standard Porsche 964 Carrera. Firstly, the 964 RS used a higher compression ratio, which increased power output. The engine was also equipped with larger valves and more aggressive camshafts, allowing for improved airflow and a more dynamic power delivery. The 964 RS engine also had lightweight components, such as lightweight flywheel and connecting rods, which enabled it to rev higher and more quickly. Additionally, the intake and exhaust systems of the 964 RS were specifically designed to maximize power output. The intake featured a larger airbox and throttle body, while the exhaust system used larger diameter pipes and a free-flowing muffler to reduce backpressure. Overall, the 964 RS engine produced 256 horsepower and 243 lb-ft of torque, which was an improvement over the 247 horsepower and 228 lb-ft of torque produced by the standard Carrera engine. The higher-revving engine also gave the 964 RS a more responsive and exhilarating driving experience, making it a popular choice among Porsche enthusiasts and racing drivers. ChatGPT Feb 13 Version. Free Research Preview. Our goal is to make AI systems more natural and safe to interact with. Your feedback will help us improve.

Bill Verburg

964RS and regular 964 have the same specs
but
964 were hand selected for optimized performance(ie semi blue printed), so though specs were the same they are rated @ 260hp vs 250hp for regular both @6100 and 325nm vs 310nm @4800,

they did gain revabilitty and a few hp by using a much lighter single mass flywheel

ThomasC2

...and it had a small tweek done to the DME which gave most of the 10 HP, and to handle the single mass flywheel.

LM964

That's my understanding too from previous reading on the RS. Engines (in isolation) were the same but the 'hotter' DME delivered most the gain. RS lightweight flywheel plus RS engine mounts were my first own 964 updates. Certainly made a difference.

997 tt/rs

thanks guys, this is what i thought

cobalt

What I have found is the ANDIAL tested US spec Cup Car engines did produce 272 hp and roughly 269 ft pounds of tq. I can feel a difference between the two engines especially the tq. I second the responsiveness due to the LWF and lighter weight.

Ken D

Ken D

cobalt

So the US Cup car clearly comes with the same ECU. This is from 2 swoosh's car. Yet it seems to pump out additional power over the factory Stated RS by a considerable amount. 272 vs 260 Hp and 269 vs 239 tq.

ThomasC2

I used to have RS chip in my DME modified to fit in a C2 DME and it said 264 HP, and you could feel the difference. Ant it handled my LWF much better.