What was the first year Porsche made the 928?
1978-79 The first couple years the 928s were almost hand built cars. The quality in many areas was later reduced in favor of higher production numbers in an attempt to capture market share. The features that distinguish the early years are simpler electronics and the CIS fuel injection system.
What’s the viscosity rating of a Porsche 928?
SAE30) and by using two numbers for multigrade oils (eg. SAE 15W-40). The viscosity is always given at two points, 40C and 100C. For Porsche 928’s a viscosity rating called “High Temperature High Shear” (HTHS) which is measured at 150C is critical – it must be at/above 3.5cP in our engines when used normally.
What kind of lubricant do you use on a Porsche 928?
Using a Porsche Approved and Listed lubricant (or in a 928 as an alternative, a viscosity compliant “mixed fleet” HDEO) is the very best insurance Policy available Additives No “magic additive” such as Slick 50, Wynn’s etc. has ever been shown to extend the life of an engine.
When did the Porsche 928 GT engine come out?
It was a step up from the S4 engine which was originally released in 1987. It made some remarkable improvements such as generating an additional 10 horsepower up from the S4’s 316 HP and is half a second quicker going from 0-60 MPH.
Where are the ground wires on a Porsche 928?
One is at the top of the “O” in the word Porsche cast into the cam cover — and it may be covered-up by the emissions air injection valve/hose. The second attachment point on the cam cover is more visible and is closer to front of car. Point 10 For later Euro cars, look for ground wires attached to the back of cam gear metal rear covers.
What kind of intake manifold does a Porsche 928 use?
The GT engine uses a 4R intake manifold which was used on all late model 928s. What is unique for the GT engine is that its intake manifold included port matching with the cylinder heads. The cylinder heads were hand picked to match up, and this increased the CFM (cubic feet per minute) rate for the intake.
How big are the Pistons in a Porsche 928?
The depth of the dish is about 7 mm. The pistons are fairly large, measuring 62 mm long from the top, and have a weight tolerance of +/- 4 grams. Figure 1. S4/GT piston.