914-6 with Zenith? Options

[DennisV]

Did any 914-6 engine come original with Zenith carbs?

When I look at the Porsche 914 Factory Parts Catalogue, it appears to list only two carburetor part numbers (left and right) which are 40 IDT Weber.

We acquired an engine that is 914-6 correct number range, but has Zenith 40 TIN on it. Is there any chance they are correct? I'm guessing someone just didn't care about originality, and threw them on there.

Thank you.

[brant]

Zeniths we’re sold originally on a 2.2 motor
The venturis are appropriate for a small bore engine
They may need to be re jeted but depending on altitude and use

The 914/6 was actually the least special motor from Porsche
Most but not all Weber parts should work
Including gaskets I believe

I don’t think zenith parts are available so using or modifying Weber parts is the only option

[Optimusglen]

Zeniths we’re sold originally on a 2.2 motor
The venturis are appropriate for a small bore engine
They may need to be re jeted but depending on altitude and use

The 914/6 was actually the least special motor from Porsche
Most but not all Weber parts should work
Including gaskets I believe

I don’t think zenith parts are available so using or modifying Weber parts is the only option

The '71 911T was a 2.2 with Zeniths from the factory.


I have that motor and those carbs in my 914. At an elevation of 900ft I'm running 30mm venturis, #55 idle jets, and #130 main jets. This was ok even up to higher elevations (~9000ft) on a trip last year, but of course, it was rich at higher elevations and slow.

I never had Webers, but everything lined up just fine.