Cairo's Six - 3.6 in and running great! Options

[Cairo94507]

Hi Everyone -

Some may be aware I recently bought the '95 993 3.6 motor Chris (Tygaboy) had for sale. I must have looked at his ad a 100 times (IMG:style_emoticons/default/drooley.gif) and finally could not resist. Had it not been Chris and pretty local to me I probably would have passed.

The 3.6 has approximately 18K miles on it (IMG:style_emoticons/default/piratenanner.gif) and came out of the 993 in 1997 following an accident. The engine was properly stored with rocker arms loosed and oil poured in the cylinders and turned over regularly. I pulled the plugs and it turned over like a new engine. Squirted some oil in, reinstalled the plugs and have turned it over a few times since it came to my garage patiently awaiting the swap.

Greg T. (master mechanic/technician/body man and painter) (IMG:style_emoticons/default/pray.gif) and a very good friend agreed to tackle this project at his garage. So on Friday (2/16/24), we drove to Greg's (it ran great) and a short 5+ hours later the 3.2 was out. We took our time and the biggest hassle was pulling the wiring harness for the 3.2 out of the car without damaging anything. (IMG:style_emoticons/default/biggrin.gif)

The next day we trailered my Six in Greg's enclosed trailer, pulled by his wife's beautiful Dodge Ram diesel, to the Red Barn! Yes, Chris, (master fabricator if ever there was one) another great guy and good friend @Tygaboy agreed to do some metal fabrication as a part of this swap. After seeing Chris' skills on multiple projects, (IMG:style_emoticons/default/smilie_pokal.gif) I knew if someone was going to be cutting (IMG:style_emoticons/default/sawzall-smiley.gif) and welding (IMG:style_emoticons/default/welder.gif) on my car. I really wanted it to be him. (IMG:style_emoticons/default/pray.gif)

After looking at the current oil cooler setup, (IMG:style_emoticons/default/idea.gif) it was decided to leave my existing GT style oil cooler and add the 2 Spal 6.5" fans and see how that works. My 3.2 stayed cool while driving unless I got in stop 'n go traffic (What? None of that in the Bay Area!) and then the temperature would creep up. We will relocate my oil cooler thermostat from the front trunk (where the factory installed them in the GT cars (IMG:style_emoticons/default/confused24.gif) ) to the engine firewall- where we all agreed it belonged. I have to give Chris credit for this plan as I originally was going to swap in a larger oil cooler and open the nose panel of my car up (IMG:style_emoticons/default/sawzall-smiley.gif) to mate to the new cooler with a nice duct (IMG:style_emoticons/default/welder.gif) . Chris pulled me back from the edge and said he believed cutting the nose panel out may not be necessary once the fans are installed.

Of course that is not all Chris is doing. My car has factory, non-retractible, seat belts and my brother and I prefer retractible belts. So we are installing retractible belts. Chris will do the fabrication; he did this to his LS car and it works flawlessly.

OK, here are some pictures to get this thread rolling; I hope you enjoy following along as this stuff happens.

Again, a sincere thanks (IMG:style_emoticons/default/tiphat2.gif) to Greg T, Chris B., my brother Bob, HB (2 914 owner and good friend), for their support and encouragement. And thanks to anyone who has done a 3.6 swap into a 914 and posted about it so we have a road map. I will document our project to hopefully make it easier for others to do the same.

Cheers- Michael (IMG:style_emoticons/default/beerchug.gif)

[Cairo94507]

I will be at Chris' on Saturday and we plan to sort this then. We have a few options as Seatbelt Planet offers a variety of receivers. Thanks for the thought Andy. (IMG:style_emoticons/default/beerchug.gif)

[raynekat]

I've seen some replace the extra onboard oil filter on the 3.6's with a factory cooler instead. Goes in the same place as the oil cooler on the earlier engines. I always thought "why 2 oil filters?"

Another option for additional cooling if you need it.

[ClayPerrine]

I've seen some replace the extra onboard oil filter on the 3.6's with a factory cooler instead. Goes in the same place as the oil cooler on the earlier engines. I always thought "why 2 oil filters?"

Another option for additional cooling if you need it.

I considered this a while back. There are directions on Pelican:

https://forums.pelicanparts.com/porsche-911...here-s-how.html

It wouldn't work for me. The cooler interfered with the adapter plate for the Cayman 6 speed gearbox.

[Cairo94507]

Thanks guys; that will be another option if Plan A is not sufficient. (IMG:style_emoticons/default/beerchug.gif)

[Luke M]

I've seen some replace the extra onboard oil filter on the 3.6's with a factory cooler instead. Goes in the same place as the oil cooler on the earlier engines. I always thought "why 2 oil filters?"

Another option for additional cooling if you need it.

"why 2 oil filters?".... From what I recall it has to do with the Hydraulic valve lifters.

[mepstein]

I've seen some replace the extra onboard oil filter on the 3.6's with a factory cooler instead. Goes in the same place as the oil cooler on the earlier engines. I always thought "why 2 oil filters?"

Another option for additional cooling if you need it.

"why 2 oil filters?".... From what I recall it has to do with the Hydraulic valve lifters.

I’ve been told the filter on the engine is in the perfect spot for filtering the oil. The filter at the oil tank is less than ideal.

[Root_Werks]

This is such a neat engine swap. There are more and more 3.6's finding ways into 914's which I think is very cool.

[Cairo94507]

Today my brother and I took a ride to The Red Barn to see Chris and go over seatbelt and oil cooler stuff. I am glad to say we have a solid plan and I was able to sit in my car with the retractible seatbelt in place and it will work just as planned thanks to Chris' superb skills and abilities.

We also pulled the front bumper off and removed my aluminum oil cooler shroud to check on the actual real estate for the cooler/fan set-up. We decided to scrap the 2 Spal 6.5" fans and go with the larger Setrab oil cooler with 3 5.25" fans mounted on the backside of the cooler and then Chris will fabricate a new shroud, very similar to the one that was on the car. The new cooler is taller by a little over 1" and wider by about 3" and slightly thicker too. We believe that is going to handle the needs of the 3.6 just fine.

So I have some parts to return and new parts to order. (IMG:style_emoticons/default/beerchug.gif)

This is the current oil cooler which is coming out for a slightly larger one:









So we decided these 2 Spal 6.5" fans would not work the way we want and I will return them and get 3 5.25" fans to mount right behind the new larger oil cooler. I mistakenly ordered a 1 pass cooler and I need a 2-pass so my oil lines will remain on the drivers side of the car. We will relocate the thermostat to the engine firewall- where it really belongs.

[SirAndy]

Lets compare sizes, shall we? (IMG:style_emoticons/default/biggrin.gif)

Images pulled from this thread:
http://www.914world.com/bbs2/index.php?s=&...st&p=893543


(IMG:http://www.914world.com/bbs2/uploads/post-179-1177645001.jpg)

(IMG:http://www.914world.com/bbs2/uploads/post-179-1177645013.jpg)

[Cairo94507]

Thanks for the pictures Andy. The oil cooler we are going to install appears to be a bit wider than that but otherwise looks about the same thickness and height. But the one currently in my car is smaller and why we are replacing it for the 3.6. (IMG:style_emoticons/default/beerchug.gif)

[tygaboy]

What happens At The Red Barn, stays at Th...er... Goes on my YouTube channel!
Michael agreed it'd be OK to post video of what we're up to so here's Part 1. Note that many of the folks who'll see this may know little about 914s so I spend some time talking about details that you may already know. Hope you enjoy.

https://www.youtube.com/watch?v=kyBpMUOeGLw

[Cairo94507]

Great job Chris (IMG:style_emoticons/default/pray.gif) . I feel so lucky to have a friend like Chris who is not only a terrific guy, but a master fabricator. I knew he was the guy to do the seatbelt modification after seeing all of the fabrication he has done over the years. Aside from that, he just has that kind of mind that looks at all of this and comes up with great solutions. I can not wait until we get to the new (larger) oil cooler, 3 5.25" fans and shroud. I know it will be just perfection in form and function. (IMG:style_emoticons/default/beerchug.gif)

[Luke M]

Hi Michael,

Hey, have you seen the setup that Enrique, @RiqueMar , did on his 3.6 install?

http://www.914world.com/bbs2/index.php?sho...8955&st=920

I purchased 2 oil cooler fan kits from him to be used on my brothers and my 6.
Just a thought unless that's the way you guys plan on doing the install.

[4CamGT]

I watch this thread with great interest. I have a ‘70 914-6. Original #’s matching motor is stored away. Installed is a stock 3.2 with the original Weber carbs and fan assembly from the original motor. Motor looks stock with original air box. My goal is to not modify anything that isn’t reversable. The oil cooling is dual 930 coolers w/fans mounted below the rear trunk floor using existing mounts. So far this has worked really well including in stop and go traffic. Wheels are original deep 6’s modified by Weidman to R7’s front (205/55) and R8’s rear (215/50).

[Cairo94507]

@Luke M - Yes, I have seen Enrique's set-up and that is very similar to what we do. Thanks for the link too.

[b]@4CamGT - Great looking car and I totally appreciate the stealth nature of your car. Mine is similar but I stayed with the stock Motronic on my 3.2 and will keep the 3.6 stock as well. I originally considered Webers, I had a set, but then recalled that I was tired of playing with them and really wanted to be able to lean in the window and just turn the key. I know some cars with Webers will do that....but not many. But there is nothing like the sound of those Webers when you step on the loud-pedal.

BTW, did you have to roll your rear fenders at all to fit those rims/tires? I am thinking it would be nice to get a tiny bit more tire under the car - in the rear especially.

[4CamGT]

<b>@Luke M - Yes, I have seen Enrique's set-up and that is very similar to what we do. Thanks for the link too.

[b]@4CamGT</b> - Great looking car and I totally appreciate the stealth nature of your car. Mine is similar but I stayed with the stock Motronic on my 3.2 and will keep the 3.6 stock as well. I originally considered Webers, I had a set, but then recalled that I was tired of playing with them and really wanted to be able to lean in the window and just turn the key. I know some cars with Webers will do that....but not many. But there is nothing like the sound of those Webers when you step on the loud-pedal.

BTW, did you have to roll your rear fenders at all to fit those rims/tires? I am thinking it would be nice to get a tiny bit more tire under the car - in the rear especially.

The rear was slightly flared from when it was new. So far I don’t know how to post more than one photo at a time! The Webers on mine work flawlessly. Fires up hot or cold immediatly almost like FI. It was dyno’d at 235hp.

[4CamGT]

<b>@Luke M - Yes, I have seen Enrique's set-up and that is very similar to what we do. Thanks for the link too.

[b]@4CamGT</b> - Great looking car and I totally appreciate the stealth nature of your car. Mine is similar but I stayed with the stock Motronic on my 3.2 and will keep the 3.6 stock as well. I originally considered Webers, I had a set, but then recalled that I was tired of playing with them and really wanted to be able to lean in the window and just turn the key. I know some cars with Webers will do that....but not many. But there is nothing like the sound of those Webers when you step on the loud-pedal.

BTW, did you have to roll your rear fenders at all to fit those rims/tires? I am thinking it would be nice to get a tiny bit more tire under the car - in the rear especially.

The rear was slightly flared from when it was new. So far I don’t know how to post more than one photo at a time! The Webers on mine work flawlessly. Fires up hot or cold immediatly almost like FI. It was dyno’d at 235hp.

[4CamGT]

<b>@Luke M - Yes, I have seen Enrique's set-up and that is very similar to what we do. Thanks for the link too.

[b]@4CamGT</b> - Great looking car and I totally appreciate the stealth nature of your car. Mine is similar but I stayed with the stock Motronic on my 3.2 and will keep the 3.6 stock as well. I originally considered Webers, I had a set, but then recalled that I was tired of playing with them and really wanted to be able to lean in the window and just turn the key. I know some cars with Webers will do that....but not many. But there is nothing like the sound of those Webers when you step on the loud-pedal.

BTW, did you have to roll your rear fenders at all to fit those rims/tires? I am thinking it would be nice to get a tiny bit more tire under the car - in the rear especially.

The rear was slightly flared from when it was new. So far I don’t know how to post more than one photo at a time! The Webers on mine work flawlessly. Fires up hot or cold immediatly almost like FI. It was dyno’d at 235hp.

[4CamGT]

3.2 with the original Webers and fan housing assembly.

[4CamGT]

3.2 with the original Webers and fan housing assembly.