PORCHE 928 S4 V8, Searching For Lost BHP! 

JDSPorsche here, I'm pleased to see the MAF worked out and what a difference. Just one thing, the instructions for setting them up - it's automatic on a Lambda closed loop car but not on the 87 as it doesn't have an O2 sensor. The blue plugs are where you can take the measurement or without cats at the exit of the tail pipe. You need to adjust CO to 1% by using the potentiometer above the fuse board. The reason is it may have been adjusted for the old MAF. The wings are aluminium by the way and it's evident that the ODO is not working, likely a broken gear wheel (they all do that).

I owned one 27years ago. Now I can't stop looking at them.

My favourite car design of all. To me, these look amazing from any angle, and I even love the gawky headlights.

I owned a manual 928S4 over three decades ago. I remember putting 137,000 km on the car before trading it in for a 928 GTS. It was a fast car, with excellent brakes, but it had a harsh ride, because it had the sport suspension. When I parted from the car, the steering rack was shot, the differential was making funny noises, the central exhaust was blowing air, the clutch needed replacement, as did the brake discs and pads. I would like to add that the navy blue metallic paint was full of stone chips (the front of the car needed repainting), not to mention the "sanded" windshield. I used to drive the car really hard across the unrestricted German freeways and enjoyed it immensely. My first GTS, which was a definite improvement over the S4, got the same treatment.

The headlights were designed that way so they would be washed with the car. I have owned over 10 from 79 to 89. Changing a clutch is so easy you don’t have to pull the trans just the cover and loosen the torque shaft and pull out the twin plate clutch the cars are amazing and deserved it’s car of the year award in 1977 truely a car before it’s time and still completely comfortable in the company of todays super cars. There is no substitute

This 928 is a prime candidate for dry ice cleaning. It’s amazing what you can remove with that and not damage the vehicle.

Lights are a perfect design. Had one for ten years, incredible car, especially driving across Europe.

I don't know how old you are, but when the 928s came out the junk that was being driven around, this was a space ship.

Tony Levine (sp?) the project manager for the 928 project was a fan of the Lamborgini Miura, the light styling of the 928 is a direct implementation of that.. The only 2 cars I am aware of that have the lights this way. The body is aluminum not plastic.

Those fenders are aluminum 😉👍 great car ... wish they still had more people who truly knew how to fix them!

My friend has an 88 s4. The thing most people dont understand is that the 928 isnt that great from 0-60; its a beast from 60-150.

My absolute dream car. Guards red with magnolia linen leather with red piping please. I started work in 1981 in London as 16uear old, a couple of years later I saw a proper braces, stripey shirted yuppie, at the wheel of a 928S in the above spec with the number plate, THE 928S (i assume a dealer demo car?) And instantly fell for the colour ,shape and burble. Never brave enough to own one, but every man can dream can't they.

A few words that describes the 928’s headlights are “Iconic” and “Unique”. They may not be pretty but you never forget them.

Great video about a lovely car. Noticed that the milometer isn't working, could be the plastic gears. The design of the 928 has aged so well; when you compare it to many of the cars from the time it was developed, it was light years ahead.

I don't know if I've ever seen a white 928. Holy shit, white really sets it apart a TON. These wheels look good but some dark grey Fuchs would match it's look great. They run really well with a twin screw supercharger on them with supporting mods.

Glad you like the 928.

Really enjoyed the clip. That engine is certainly tight in there and I wouldn't fancy doing any headwork on it . Shame that it was wet for the final run.

Alot of people driving auto 928's fail to activate the kickdown switch at the very bottom of throttle travel. If you push it to the floor and activate the switch...you will be quite surprised.

The Auto in D pulls away in 2nd gear, you need to drop the Auto selector into 2 it then starts in 1st gear off the line (Porsche logic in there somewhere)

If we lived closer to each other, I've got a MGB GTV8 that needs checking over. It had an engine rebuild before I got the car, but now has a noisy lifter at the rear. Oil pressure is good.

le-sigh... almost got one.. but got outbid.... can't compete with someone who wants a 91 GT, along with 2 early 911 turbos.. But tis life... so got a Challenger Scat Pack with the hellcat brakes.

I want laser beams on there. Take it to the limit 🎵

You said the fenders were plastic. No, that's aluminum. Same with the doors, roof, and hood. The rear quarter panels and hatch are steel. The bumpers are plastic, and they were the first of their kind in any automobile. The rest of the manufacturers were using surf board bumpers or chrome, and the 928 was a poly clamshell in '78!

The PopUp Headlights are Unique and perfectly designed. you call it weird , but many many others call them Beautiful.

Great video!

Geez. I counted that 0-60 at 12 seconds, after the HT leads, dizzies and plugs!

Often electrical gremlins are bad grounds that just need a clean

Need to have a switch to turn on the headlights when they are retracted.

Fortunate to have an S4 auto. 0 to 62mph around 5.9. They're quick enough and handle well enough to go like this..😆😅😆

If the headlights are not your cup of tea, I removed a relay just above the fuse panel which will turn on the sidelights without raising the headlights. They will only raise on dipped and full. Did it about 20 something years ago so don't ask for a tutorial :)

Interesting clip

What happened to the compression test ?

I had me one of those 928 regular version and a ford Taurus sho blew my doors off very disappointing

That's the weirdest MAF and placement I've seen!

Does it have a water cooled Alternator like the Mercedes-Benz S class from this era too? Why don't you have anything on the fenders to protect them and gloves to protect the car?

oil sweat?

You should have done a bit of research before diving into a car you don’t know a thing about. I feel for the owner who gave you their baby to guess and wonder. Shame the 928 is a wonder of engineering and should be treated with a bit of reverence.

Please pronounce Porsche properly!....SMH...... And by the way, the hood, fenders and doors, are aluminum.

SPEEDOMETER IS NOT WORKING BRO AND ITS NOT 136 ITS 436388 MLS

Nice. Always go for a copper tipped distributer cap if you can over the aluminum terminals. Better performance

You want to consider doing an intake refresh on the 928. Over the years the seals on bearings perish and rubber gaskets for the plenum degrade.

my 1985 928s auto is lacking performance as well....all new plugs wires. I think the transmission does not drop down correctly but i will look into air flow also.

Loved the video, love the car. I’m deep into a 928 restoration right now, if you dare take a look…. I’m learning on the job :)

I had a friend back 20+ years ago had one of these. Her husband had bought it in 85. I believe if I remember right, it was an 82 model. I tried to buy it from her, but she valued it much to highly for the time. I am in the US, so of course, it was left-hand drive. Love that decal on the gas lid.😂😅

12:20 The engine mounts are shot.

Air filter should be curved side upwards 😊Good job, hope he was happy

Manual is a completely different beast…

Cool car but that fuse box is just silly.

Great video: Although I would have liked to have seen a pre and post dynotest with full torque and power curves... I warrant if it was necessary to have changed leads and plugs after such few miles - it would have added a large bill for the customer. The distibuter caps perhaps. Fuel/air filter absolutely... Rather dated technology but interior looks very nice. It must have been retrimmed. With the odometer not working it is certainly difficult to decide what useage it has really had.. I would say it needs a good workover. Some underbody parts look a bit crappy. As they seem to have the value now it would be worth doing.. Of course any decent modern vehicle would leave it for dust - imagine the 928 against a Type R Civic for example? I know where I would spend the money. I had an 928 S2 back in the day - a comfortable but lumbering underperforming vehicle - and it cost an extreme amount of money to maintain.. I agree the headlights (in the up position) look ugly and will be really prone to stone chip damage... Wet road handling would be an accident waiting to happen...

Any update on the Zafira GSI Super Ron?

Great to see you back with regular content Ron.

Great Video, well done.

Thumbs down just for "porsh".