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914World.com _ 914World Garage _ Pic request 914-6 conversion using CIS throttle

Posted by: nditiz1 Sep 15 2021, 06:49 AM

I will be using the patrick motorsports linkage and I am already seeing an issue. The sheet metal from restoration design looks to be using the stock location for carbs which pushes the throttle closer to the center of the engine and has the ball on the inside. CIS throttle has it on the outside. I believe some needed to drill out the ball and tap it on the opposite side. Did they also need to drill a new hole? Did anyone get it working with less effort? Maybe just drill a hole further towards the outside of the engine and not mess with the ball on the throttle shaft. Show me what you did if you can, I'm a visual learner beer3.gif

Thanks all!

Posted by: Root_Werks Sep 15 2021, 08:41 AM

Here's a pic of my 2.7 with CIS. It uses a 4cyl cable. I cannot claim credit for the bracket. PO made a little bracket which allowed the use of the cable. Only mod on my part was drilling a hole in the 914-6 tin, adding a grommet for the cable to run through.




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Posted by: Tdskip Sep 15 2021, 09:19 AM

Bump for even more pictures...and a thank you to @http://www.914world.com/bbs2/index.php?showuser=2105

Posted by: SirAndy Sep 15 2021, 09:52 AM

Search for the build thread of the late Jeff Tucker (http://www.914world.com/bbs2/index.php?showuser=128), he had tons of good info in there.

bye1.gif

Posted by: VegasRacer Sep 15 2021, 10:16 AM

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Posted by: nditiz1 Sep 15 2021, 10:48 AM

Thanks @http://www.914world.com/bbs2/index.php?showuser=179

@http://www.914world.com/bbs2/index.php?showuser=481 - John did you drill a new hole? Looks like everything is stock. Did you use the existing hole or drill a new one?

Posted by: Cairo94507 Sep 15 2021, 10:53 AM

VegasRacer and Root_Werks both have clean installs. beerchug.gif

Posted by: VegasRacer Sep 15 2021, 11:06 AM

QUOTE(Cairo94507 @ Sep 15 2021, 09:53 AM) *

John did you drill a new hole? Looks like everything is stock.

The PO did the conversion. smash.gif No extra holes that I am aware of.

Posted by: nditiz1 Sep 15 2021, 12:16 PM

Do you think you can get a shot of looking at where it passes through the rear engine tin?

Posted by: Root_Werks Sep 15 2021, 01:58 PM

I think you can use a 914-6 bell crank with most of the factory CIS linkage. It's super close to 914-6 carbs. There was one 914-6 CIS conversion I recall doing using a 914-6 bell crank and slightly modified rod. Turned out very nice and factory looking.

Only reason my 914-6 uses a 4cyl cable is because it was already done and works well.

Posted by: nditiz1 Sep 15 2021, 03:47 PM

This is the issue with it lining up.

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Posted by: VegasRacer Sep 15 2021, 11:18 PM

QUOTE(nditiz1 @ Sep 15 2021, 11:16 AM) *

Do you think you can get a shot of looking at where it passes through the rear engine tin?

This is the only photo I could find in my files of the rear engine tin.



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Posted by: Steve Sep 15 2021, 11:25 PM

QUOTE(VegasRacer @ Sep 15 2021, 10:18 PM) *

QUOTE(nditiz1 @ Sep 15 2021, 11:16 AM) *

Do you think you can get a shot of looking at where it passes through the rear engine tin?

This is the only photo I could find in my files of the rear engine tin.

What’s the red box for?

Posted by: VegasRacer Sep 16 2021, 12:47 AM

AMB Racing Transponder. Attached Image

Posted by: ClayPerrine Sep 16 2021, 06:25 AM

QUOTE(VegasRacer @ Sep 16 2021, 01:47 AM) *

AMB Racing Transponder. Attached Image



Why would you put the transponder that far back in the car? You would want it on the front bumper... Just in case you go neck and neck with another car across the line. If he has his transponder on the front bumper, and you have it in the engine compartment, he is going to win because his transponder crossed the line first.


Clay

Posted by: ClayPerrine Sep 16 2021, 06:33 AM

Here are some pictures from an old thread on a CIS 914. The previous owner used an Audi airbox to replace the Porsche one, and that allowed it to fit in the 914 engine compartment.

IPB Image

IPB Image

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The whole thread on the system is http://www.914world.com/bbs2/index.php?showtopic=39740&st=0

Posted by: VegasRacer Sep 16 2021, 09:41 AM

QUOTE(ClayPerrine @ Sep 16 2021, 05:25 AM) *

Why would you put the transponder that far back in the car? You would want it on the front bumper...

You are correct Clay . . . . IF I was using the car for wheel to wheel competition.
It makes no difference for DE events and collecting lap times.

Posted by: nditiz1 Sep 16 2021, 10:32 AM

I just drilled a hole next to the factory throttle location. It should do the trick if I offset PMS throttle further towards the passenger side to line up perfectly.

Posted by: VegasRacer Sep 16 2021, 10:37 AM

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