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Ignitions, Cylinder Heads, Pistons & Cylinders, and the Bottom End 

March 1, 2018 – 4:44 pm | Comments Off on Ignitions, Cylinder Heads, Pistons & Cylinders, and the Bottom End 
Ignitions, Cylinder Heads, Pistons & Cylinders, and the Bottom End 

In this second installment, we will look at Porsche ignition systems; factory and aftermarket, the various cylinder heads used on 911’s, piston and cylinder combinations for more power and the stuff inside the engine cases …

Intake Systems – Camshafts – Exhaust Systems

March 1, 2018 – 4:03 pm | Comments Off on Intake Systems – Camshafts – Exhaust Systems
Intake Systems – Camshafts – Exhaust Systems

One of the main attractions of the Porsche 911 is that fabulous engine and the sound it makes! Besides the physical aesthetics, this one of the reasons why the 911 has enjoyed such loyal ownership …

Suspension

February 27, 2018 – 8:32 pm | Comments Off on Suspension
Suspension

The best way to make your Porsche faster is to learn to drive it at its fullest potential! As delivered, Porsche automobiles are capable of performing far in excess of most owners’ ability. Investing in Driver …

A different approach to air-cooled performance.

February 25, 2018 – 3:59 pm | No Comment
A different approach to air-cooled performance.

Rennsport Systems is not the average parts and service provider. We do not offer a “shopping cart” experience since we believe that selecting performance components for your Porsche is a bit more complex than reading various catalogs and menus of parts.

Gasoline, Detonation, Timing, and Twin-Ignition

February 6, 2018 – 4:55 pm | Comments Off on Gasoline, Detonation, Timing, and Twin-Ignition
Gasoline, Detonation, Timing, and Twin-Ignition

This column is about Fuel, Detonation, Timing and Twin-Ignition for air-cooled cars. These subjects are all inter-related in the optimization of performance.
Fuel
Fuel quality problems in the USA have been present since the EPA mandated the …

Performance Consulting

September 30, 2013 – 12:00 pm | No Comment
Performance Consulting

Get access to the best personal advice for your Porsche.
In an effort to help everyone get the most from their Porsche investment, Rennsport has developed a program to help everyone access the best in 1:1 …

2.7-2.8 litre heads: A sample of what we can do for you

February 20, 2013 – 9:03 am | No Comment
2.7-2.8 litre heads: A sample of what we can do for you

Complete CNC-flowed heads available:
These are 2.7-2.8 litre heads that have been CNC-flowed for improved airflow and machined for twin-ignition These heads have new intake & exhaust valves, our own P-B valve guides, Viton guide seals, …

This man has something for you.

January 29, 2013 – 8:48 pm | No Comment
This man has something for you.

The Rennsport Forum is now active!
After some careful development, we here at Rennsport are ready to bring you the clear, unadulterated Steve Weiner technical experience. Thanks to the magic of the interwebs, you can now …

Claudia Case Study

April 26, 2012 – 7:14 pm | No Comment
Claudia Case Study

Here is the Gallery and information about Claudia
We’ve assembled some information & pictures about Kai’s RSA racecar build that you’ll find both interesting and hopefully, inspirational. Many of these modifications are applicable for street cars …

930 Dyno Run

April 17, 2012 – 9:03 pm | No Comment
930 Dyno Run

This is a 3.3 litre 930 engine with

Kai’s Engine Run

April 17, 2012 – 8:56 pm | No Comment
Kai’s Engine Run

Here is the Dyno run for Kai’s race engine:

The 915 Transmission Case

January 15, 2012 – 5:50 pm | No Comment
The 915 Transmission Case

The 915 case can use some specific mods for durability, and the Aluminum one really needs some help with the pinion bearing so it can put up with the added stress of racing or “Fahren” …

915 Pressure Plate

January 15, 2012 – 5:45 pm | No Comment
915 Pressure Plate

Steve shows how you can spot trouble on the 915 Pressure Plate, and evaluate whether you can re-use, or have to huck it.

Winter Projects

January 15, 2012 – 5:35 pm | No Comment
Winter Projects

We’re thinking winter projects here at Rennsport. If you feel the need to love on your Porsche while it sits in the garage this winter, here are a few ideas that might help you get …

Rennsport Video Series

January 8, 2012 – 6:15 pm | No Comment
Rennsport Video Series

We just started producing a series of short videos that capture bits of advice from Steve on various aspects of our cars. We want to replicate the enjoyable experience of hanging out with Steve, grabbing …