info on this EFI slide valve setup

[scootergt3]

just bought a race car with this slide valve setup. can anyone advise of the brand? looking for info so I can sell it.

thanks in advance

[stownsen914]

A 914 with slide valves - nice

[scootermcrad]

Can you tell if the slide body is cast and post machined? Sorta looks all machined, but the pockets (black?) almost look to have casting marks in them.

Nifty setup. How do they run?

[jmz]

possibly old ProTechnik slides.

[scootergt3]

everything looks machined alum. the dark arears are just dirt/grime. everything runs very nice, I just want to switch to carbs

[Raceboy]

Why would you switch to carbs if you have one of the best possible setups??

[scootergt3]

im not good with efi/ecu tuning... I like to keep it simple.

[JmuRiz]

I’d buy that for a dollar, cool looking setup.

[75 911s]

any idea what the valve size is?

[safe]

Originally Posted by scootergt3

im not good with efi/ecu tuning... I like to keep it simple.

Get the car to a tuner with dyno and let him adjust it, then leave it alone.
Easy as that. Simple.

[r lane]

Depends on what engine management system you have and its tuneability. On another issue, how does one get around the pooling of fuel on top of the slide plates at idle. Once on the track, I am thinking maybe better atomization of the fuel. I have the option on my stacks to go either way and at present they are down below the slide plates. I am MFI, not EFI . Thinking out loud. Bob

[r lane]

Talking about the injectors installed above the throttle plates.