Countach, the ultimate supercar

OK, I will make sure to mention that there are always exceptions when I comment about the general rules Lambo (sometimes) followed!

 

Most S2's have 45MM carbs and are the same as S1's except for wheels and gauges on the first 27 S1's.

I have worked on and owned many S1 and S2 cars, there is a point toward the end of the S2 body where they began using 40MM carbs.

The factory did not go back and forth randomly changing parts, it was an evolution of changes along the way.

Historians and shops like mine are keeping track since the factory did not keep the best of records.

Cars in my shop: 1121252 has 45MM and 1121282 has 40MM carbs so somewhere between these 15 cars is where the change was made.

Greg's car 1121116 is not a later built car it was finished in late 79' and left the factory with 45's.

I hope that clears things up a bit.

 

Thanks Tony, you are providing a service to the entire Lambo community by keeping these records. Somebody really needs to keep a database of this information as the cars get more and more valuable. I will forward you the VINs of two S1s with 40 mm carbs when I get back home and get a chance to look them up. By keeping a good database of this information, we can maybe figure out the trends and can explain why things happened the way they did. I guess you are now the official database keeper of all LP400S info?

 

I like that! May change my user name to smartypants.:-D

 

LP400S1.5 Speciale

(lowbody, big carbs, and the unloved Jaeger gauges)

 

With that you get the user name!

 

What all is happening with 1121252? Any pics? If its a hush-hush job I understand.

Still kicking myself on that one

 

Thank you, Just to be clear, I never said S1's with 40MM carbs.

I said: "Cars in my shop: 1121252 has 45MM and 1121282 has 40MM carbs so somewhere between these 15 cars is where the change was made."

Both of these cars are S2's the later an 81' with 40MM carbs.

As far as the database keeper, I would say Joe Sackey, Emilio & myself are all working toward the same goal. We all share data with each other for the good of the marque.

 

HA!

Thanks Joe but I think it's the other way around

 

I understand what you said, but I know of some S1s with smaller carbs which seems to violate the trend you are seeing (unless of course they were swapped out for smog purposes many years ago, but who knows). Just want to get all the data in the database! And we will see where it takes us.

 

In 1985, I was in a Lamborghini importers shop. They had 5, 5000S cars there. They were being converted to FI to help meet US EPA specs.. I bought the carb/intake/air cleaner assys. from 3 of them.
They were ALL 45 MM carbs.
Chadbourn Bolles



but I know of some S1s with smaller carbs which seems to violate the trend you are seeing (unless of course they were swapped out for smog purposes many years ago, but who knows). Just want to get all the data in the database! And we will see where it takes us.[/QUOTE]

 

I need the following info from a 1979-1981 LP400S Countach.

See the first pic, I need the length of that tube. You do not need to jack car up or remove tyre, all you need is a ruler.

Next pix, is of the front suspention ring nut located in the front of the car at the floor.. I want the distance between the ring nut and the frame member.

Thanks
Chadbourn Bolles
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1121158 is a 40mm Carbs model.

So I guess the transition took place on a car between 112253 and 112157... Nailing down.

 

As always things are not that easy... it depends on the country of delivery since the factory began to use 40mm to bring the emissions down.

 

No way to find simple rules, huh ?!!

;-)

Indeed, this car I mentioned was destined to Canada. I guess the same emission reduction tricks were used than with those for the USA...

 

Nailing down WHAT? You and seems none of the rest here read what I wrote.

I will so again. IN 1985 I WAS IN A Lamborghini Importers shop. Read it again, IN 1985, that is right the year is 1985. In that shop were, if I remember correctly 5 LP5000S Countach cars, these cars are later than S1 and S2 cars, as they were 5000S.

EACH ONE HAD 45 MM CARBS ON THEM.

I bought 3 of the sets while there.

Chadbourn Bolles



is a 40mm Carbs model.

So I guess the transition took place on a car between 112253 and 112157... Nailing down.[/QUOTE]

 

I just replaced my old incandescent instrument bulbs with the LED units. WOW!!! Talk about a night and day difference!! When I drove the car at night, the instrument lighting was so faint, I couldn't read ANY of the gauges!! Both photo's were made with the Rheostat turned all the way up.

Thanks to RomanDad for doing all the research and finding the correct bulbs that are literally "plug & play".
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[/QUOTE]


Chad,
No need to get worked up, as the cars you saw were 5000S cars, and they are a totally different animal. IMO, the 5000S cars all came with the bigger carbs. Makes sense to me, and the factory enlarged the engine to almost 5 liters, lowered the compression some more, and then the extra displacement got back some power, getting closer to the original high compression LP400. The bigger carbs just make sense with the bigger engine, and imo the bigger engine, with the right compression, cam timing, and ignition timing took care of the emissions required for Europe back then. We were just discussing the LP400S variants (S1, S2, S3) and trying to document which 4 liter cars came with small and big carbs. We are kind of trying to find a VIN where the change became clear, but that may never happen, because it is possible that the carb that was put on an LP400S, regardless of variant, or date, depended on where the car was going! Who knows, but we are having fun trying to figure it out. We are just gathing data points to figure things out, and in the worst case scenario, we will know what LP400S cars have which carbs today! Not that that may mean a lot because carbs may have been changed over the decades!

 

Amazing difference! Can you post what the correct bulbs are and where to get them so other can make the change also? Thanks a lot!

 

Chad,
No need to get worked up, as the cars you saw were 5000S cars, and they are a totally different animal. IMO, the 5000S cars all came with the bigger carbs. Makes sense to me, and the factory enlarged the engine to almost 5 liters, lowered the compression some more, and then the extra displacement got back some power, getting closer to the original high compression LP400. The bigger carbs just make sense with the bigger engine, and imo the bigger engine, with the right compression, cam timing, and ignition timing took care of the emissions required for Europe back then. We were just discussing the LP400S variants (S1, S2, S3) and trying to document which 4 liter cars came with small and big carbs. We are kind of trying to find a VIN where the change became clear, but that may never happen, because it is possible that the carb that was put on an LP400S, regardless of variant, or date, depended on where the car was going! Who knows, but we are having fun trying to figure it out. We are just gathing data points to figure things out, and in the worst case scenario, we will know what LP400S cars have which carbs today! Not that that may mean a lot because carbs may have been changed over the decades![/QUOTE]


+1

 

No problem.

I got the "cool white" in the 90 degree beam. 9 bulbs will do all the gauges. 11 will do the low fuel light and the low oil pressure light as well. I didn't replace those 2, as they were bright enough.

http://www.superbrightleds.com/cgi-bin/store/index.cgi?action=DispPage&Page2Disp=%2Fspecs%2FWLED-x4.htm

They are only $2.59 each.

Mike