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> 3.0SC CIS in a 914, Options? Advice?
db9146
post Apr 15 2016, 07:19 PM
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I'm looking for information on dropping a 3.0 SC CIS-injected engine into a 914.

What's needed for the wiring? Other parts required? Impressions?

What did you use for heat exchangers? Did you have to add an external oil cooler? Front mounted cooler or fan-cooled mounted elsewhere?

Thanks.
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JmuRiz
post Apr 15 2016, 07:31 PM
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Fitting the fuel distributor will be an issue. You'll need th rotate it 90-deg at a minimum, maybe mount the engine a bit lower too. Worst case you'll need a custom intake work (search others that have done it)

Wiring - Perry Kiehl makes a conversion harness (I believe)

Heat exchangers work w/o issue.

External cooler is recommended, front mount is best, but if mostly street driven an under rear trunk setup with thermostatically controlled fans will work.
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PanelBilly
post Apr 15 2016, 07:53 PM
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What's needed ? Lots of $$$$
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VegasRacer
post Apr 15 2016, 08:08 PM
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What do you get ? Lots of (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif)
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Cairo94507
post Apr 15 2016, 09:48 PM
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Had a 3.0 CIS in my last Six. Ran great- no issues at all. I did add two small VW oil coolers (no fans) where the fog lights come stock. Ran it all with stainless steel hose and a turbo thermostat. That car never got hot always ran between 180-190. Plenty of power and no fuel smell or constantly messing with the webers that occupied the engine bay prior to the 3.0. I also ran the factory heat exchanger and the stock Six muffler slightly modified to resemble the GT muffler. Car sounded killer.
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Dtjaden
post Apr 15 2016, 10:34 PM
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I have a slowly developing project to put a 2.7 CIS engine in my 914/4. Assuming this is going into your 914-6 you will also need a an adapted flywheel. Your existing 914-6 has a 6 bolt crankshaft and the 3.0 has a 9 bolt crankshaft. Patrick has an appropriate flywheel available.

As far as an adapter wiring harness is concerned there is very little that needs to be added/changed. The CIS system is really not an electronic system which makes the adaptation simpler.

In my 914/4 I am currently using Megasquirt FI and that will be my backup plan if I have problems with CIS.

Darryl
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colingreene
post Apr 15 2016, 10:51 PM
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why not just call KEP and have them make it rather than deal with patrick and the associated prices?
Im not sure i would keep the CIS though.
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porschetub
post Apr 16 2016, 04:04 AM
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QUOTE(colingreene @ Apr 16 2016, 04:51 PM) *

why not just call KEP and have them make it rather than deal with patrick and the associated prices?
Im not sure i would keep the CIS though.


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mepstein
post Apr 16 2016, 04:14 AM
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QUOTE(porschetub @ Apr 16 2016, 06:04 AM) *

QUOTE(colingreene @ Apr 16 2016, 04:51 PM) *

why not just call KEP and have them make it rather than deal with patrick and the associated prices?
Im not sure i would keep the CIS though.


(IMG:style_emoticons/default/agree.gif)

(IMG:style_emoticons/default/agree.gif) PMS buys the clutch and pp from kep then marks it up for sale. Just buy it from kep direct.
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mb911
post Apr 16 2016, 06:59 AM
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That sounds like a fun project.. I know when I did my 2.7 conversion I ditched the cis for carbs but had I known then what I know now I would have just rotated the fuel injection 180 degrees.
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0396
post Apr 16 2016, 07:34 AM
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QUOTE(db9146 @ Apr 15 2016, 06:19 PM) *

I'm looking for information on dropping a 3.0 SC CIS-injected engine into a 914.

What's needed for the wiring? Other parts required? Impressions?

What did you use for heat exchangers? Did you have to add an external oil cooler? Front mounted cooler or fan-cooled mounted elsewhere?

Thanks.


Congrats with your new adventure. With the 3.0 it will bring a big smile to your face. Since the 3.0 is out, I hope you get to install 964 cams in it for the little extra ponies.
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Dtjaden
post Apr 16 2016, 09:30 AM
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On my 2.7 rebuild I plan to use a 964 cam grind and JE 9.5 cr pistons. The combo with CIS should be good for about 200 hp. Once I get going with the project, at least a couple of months, I'll start a thread on it.
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Jeffs9146
post Apr 16 2016, 10:33 AM
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No cutting required. I made a custom intake using an early Volvo 242 intake base and fabricated an intake elbow. Wiring was not complex you just need to focus. We removed the fuse panel. Added a fuel pump relay and a tach wire from the back. I put the computer under the passenger seat and added a sensor bung on 1 58" headers.


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patssle
post Apr 16 2016, 10:40 AM
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I tore the CIS off and put on Webers for my 3.0 /6 conversion. It sounds better, looks better, performs better, easier to work on, and makes the conversion itself a lot easier with fewer electronics and sensors. But your MPG goes down and fuel smell is indeed an issue. I don't care about MPG but sometimes the fuel smell is annoying. Regrets? None.

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Jeffs9146
post Apr 16 2016, 10:46 AM
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More photos


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db9146
post Apr 22 2016, 04:40 PM
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I have been reading up on oil coolers, the need for them and where they can be successfully placed. It seems that a rule of thumb that has been thrown out is that anything larger than a 2.7 running FI needs an external cooler. Obviously, I won't do anything that can't be bolted into the car and then removed but weighing the options is difficult.

OPTION 1 - Its a given - I have my carbs rebuilt (they need to be rebushed). Once I do this, I could simply put them back on the stock 2.0 and drive it.

OPTION 2 - Or, I could pull and pickle the entire engine and carbs, and spend the money to have the carbs rebuilt towards a complete FI engine. I've found a 2.7 CIS, a 3.0 CIS and a 3.2Motornic all for about the same money going in.....but then there is the whole oil cooler issue.

OPTION 3 - Have the carbs rebuilt but set-up for a larger, say 2.4 carbed engine (again, found one of these for about the same money as in option 2 but its rebuilt). This approach would be more $s overall because I'd be rebuilding the carbs and buying a motor but there would be no need for an external oil cooler and it would suit the character of the car better than turning it into a monster.

Thoughts?


Any recommendations on where to have the carbs rebuilt? Because of the shaft play, they need to be rebushed so its not something I'm ready to try.
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mepstein
post Apr 22 2016, 04:59 PM
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You won't know for sure about the external oil cooler ( no matter what the engine size) until you run your car. Some engines rune hotter than others and where and how you drive matter. Your in GA, not ME, count on a cooler no matter what. I would buy the engine for the engine, not to save money on an oil cooler.
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0396
post Apr 22 2016, 05:07 PM
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Based on my small brain, anything over a 2.7 should get an oil cooler....unless you happen to live in Alaska. As for the carbs, Paul Abbott in N Cal can rebuild the webbers for approximately $2700 - $3000, especially if the shafts need work.
I would dump a 3.2 and drive away with a Big Smile.
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patssle
post Apr 22 2016, 05:23 PM
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I put my oil cooler under the trunk with a fan - it works great. Before my engine temps were going to 240 and possibly higher but I stopped driving. Now they never touch 210.

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db9146
post Apr 22 2016, 05:49 PM
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" I would buy the engine for the engine, not to save money on an oil cooler."

Its obviously not the cost of the oil cooler but getting one to work without having to cut the car for the engine or the cooler.
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