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Ask Dr. Koni
Author: Skip   Question: What's the difference between the red Koni and the Sport Yellow Koni? Answer: The valving is different. Sport Yellow units have stiffer valving than their St
A-arm bushing modification (65-68 911/912)
Author: Skip  Discussion: During various parts of my '66 912 restoration/rebuild/upgrade project, I've come up against the curse of old car restorers-parts! Yes, I know, Porsches are actually on
What is the Largest Wheel and Tire Combination I can get under my stock 914 fenders?
Author: Skip One of the most commonly asked questions is, “ How much tire can I get under these fenders?” Well the 914 is not the most exact car ever built, and wheel well space varies a lot from
Accusump Installation
Author: Skip I know of few topics that elicit such dismissive and strongly held opinions as that of how to eliminate the cause of #2 rod bearing failure in 944 engines. Some builders claim that
Clutch Replacement - Part One
Author: Skip The following account explains in detail the procedure of changing a clutch in a 944/951. It also contains a list of tools, chemicals, parts and the sources where to find them. The
Clutch Replacement - Part Two
Author: Skip TRANSMISSION: Remove shift boot lever (retaining clip at top )(Be careful of plastic cosmetic items, remove ashtray, two screws, lift center piece slightly & push out lea
Clutch Slave Bleeder Valve Remote
Author: Skip A couple of years ago, while running at NHIS, I had some difficulty getting good, clean downshifts into second gear without double clutching. While some would attribute this to poo
Coolant Flush
Author: Skip Got Milk?  The coolant expansion tank on this series car can provide some warning signs of trouble deep within the engine.  The oil cooler has seals that may break down o
Motive Power Bleeder
Author: Skip The Motive Products POWER BLEEDER TM works just like professional pressure bleeders -- at a fraction of the cost.  With a POWER BLEEDER TM , one person can easily, safely, and
Portable air tank tips
Author: Skip Go ahead and laugh, but if this helps just one person... Many of us have the small portable air tanks for various tasks, most for quick racing tire pressure changes.  Frust
K&N Air Filter Facts
Author: Skip Why K&N Makes The World's Best Air Filters Facts You Should Know About Air Filters Paper vs K&N Stock Replacement Filters Washable and Reusable Beyo
Dash Replacement
Introduction Replacing the dash on a late model, 85.5 and newer Porsche 944, is not a difficult task.   It is very time consuming and meticulous.   Patience is necessary.   An ex
Koni Strut Conversion - 8641-1414S for late 944, 968
Author: Skip Koni sealed strut insert conversion (8641-1414S) Description Image Parts : Koni 8641-1414S Sport Struts - all conversion and instructions parts included.
Oil Cooling, Auxiliary
  KISS ENGINEERING OIL COOLER KITS 944/944 TURBO TEST DATA AND INFORMATION     COOLER           &n
Rear Wheel Bearing Replacement - late 944, 968
  Discussion :   This procedure will describe the removal and subsequent installation of rear wheel bearings on a Porsche 944  with aluminum trailing arms (1985.5 & later)
Rod Bearing Replacement
  Discussion: This procedure will detail the steps necessary to replace the Rod Bearings on a 944 Turbo car.   With some modifications it may also be applied to normally aspirated 944
Torsion Bar Replacement
Information for what Torsion Bars to Use Please Click Here .  Be warned that torsion bar replacement for a 944 is not a job for the faint of heart. In fact even experienced  specialists wil
Transaxle Replacement
Removal :      You will need to place the car up on jack stands at least 20”. Make sure that it is secure! Remove the rear wheels and the axles. If you have never had the axles
3 - Basic Calculations
In the last two articles, we plunged right into some relatively complex issues, namely weight transfer and tyre adhesion. This month, we regroup and review some of the basic units and dimensions need
5 - Introduction to the Racing Line
This month, we analyse the best way to go through a corner. "Best" means in the least time, at the greatest average speed. We ask "what is the shape of the driving line through the corner that gives