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)

[SirAndy]

My pressure is typical 80 pounds when at freeway speeds, say 2700 RPM/75 MPH, and when idling, at 40 pounds.

Interestingly, those numbers aren't too far off.
Mine sits around 20-30 at idle and 70-100 under load.
(IMG:style_emoticons/default/idea.gif)

The stock 3.6 sender is 0-5 Bar (0-72 PSI). Your gauge is 0-80 PSI. I don't know if its worth the hassle of changing the pressure gauge or sender. I would just change the temp sender to match your temp gauge. Temp accuracy is more important.

I have a matching gauge/sender pair. In fact, i bought the gauge i liked first and then bought the matching sender for it.
(IMG:style_emoticons/default/bye1.gif)

@Steve
It's a 0-10 bar dual sender with an adapter to fit in place of the stock 0-5 bar sender.
And the gauge is a 911.641.104.29 which is a 0-10 bar/0-140 psi pressure gauge.
(IMG:style_emoticons/default/popcorn[1].gif)


(IMG:http://www.914world.com/bbs2/uploads/post-179-1560543638_thumb.jpg)

[mepstein]

@ClayPerrine - I checked with Porsche and that adapter, (96410770522) is out of stock everywhere. Any other possible sources? (IMG:style_emoticons/default/beerchug.gif)

I would call these guys. They usually come through for me.

[Cairo94507]

@mepstein - Thanks Mark - Ordered it and it should be here within 2 weeks. (IMG:style_emoticons/default/smilie_pokal.gif)

It's just a matter of staying on track and knocking off the "to do" list an item at a time. (IMG:style_emoticons/default/smile.gif)

Steve @Steve - The pressure sender was a direct swap- no issues for fitment. Thanks for that information, glad to have that sorted. Hopefully we will get he oil pressure gauge sorted too. It bugs me that the gauge is almost always pinned at 80 when driving. I want to find the 0-10 bar sender and see if that solves my gauge problem.

[Cairo94507]

Ehhh....part on backorder and they cancelled it as no ETA available. Guess we will buy a plug and then tap it to accept the sender. I have emailed Palo Alto Speedo to see what they have to say about a solution. (IMG:style_emoticons/default/beerchug.gif)

[SirAndy]

I want to find the 0-10 bar sender and see if that solves my gauge problem.

That's the one i'm using:
https://patrickmotorsports.com/products/eng...e684c&_ss=r
(IMG:style_emoticons/default/bye1.gif)

[Cairo94507]

@SirAndy - Andy, I might have missed it, what pressures do you see at idle, 3K, etc.? Is the 140 gauge getting pinned when driving?

[SirAndy]

@SirAndy - Andy, I might have missed it, what pressures do you see at idle, 3K, etc.? Is the 140 gauge getting pinned when driving?

My pressure is typical 80 pounds when at freeway speeds, say 2700 RPM/75 MPH, and when idling, at 40 pounds.

Interestingly, those numbers aren't too far off.

Mine sits around 20-30 at idle and 70-100 under load.
(IMG:style_emoticons/default/idea.gif)

(IMG:style_emoticons/default/bye1.gif)

[Cairo94507]

Thanks. (IMG:style_emoticons/default/beerchug.gif)

[Cairo94507]

Looks like my path forward may be to swap in a 0-10 bar dual sender to address the pressure gauge and warning light and then send my tach/oil pressure combo gauge to Hartmut at Palo Alto Speedo to swap in a 0-140 PSI gauge to match the sender. That should give me accurate pressure readings. Once the rain starts, I will do that. (IMG:style_emoticons/default/beerchug.gif)

[horizontally-opposed]

For you guys: Info on Marks Blue Car with the Bob / Mark rebuild finished my PMB Performance
Stock body 74 car. The wheels are copies of Deep 6 front and 7rs rear. Copy of Deep 7s with extra 1 in going to the inside.

215-15R rear 1/2” spacer on the 7r wheel. Fender roll provides 1/2” clearance. 205-15r front on 6 wheel with 1/4” spacer.

At the time Eric said this was the 1st time they actually installed this set up. Was just theoretical previous. He will use this configuration going forward on non flared builds

Mark says no scraping at all.

Best Bob B

^ This car looks great, and very interesting on the wheel/tire combo. Curious how those all-season Falkens are for grip on a 914—do they feel "all-season," or like a performance tire?

Asking as I run Falken's UHP all-season on a 991, which sounds like a misnomer but shocks everyone who tries it. It's far closer to the UHP summer performance Michelin PS4S than it should be, and is a lot quieter and great in the rain as well.

All-seasons have come a long way in recent years, with a set of Michelin A/S3s being awesome on our 500 Abarth, but the last set I tried on my 914 8~ years ago were pretty mediocre...at best.

[Cairo94507]

I think I am going to try John Bell for this gauge modification. The work I have seen is top notch. Anyone have a contact number for him? If so, please PM it to me. (IMG:style_emoticons/default/beerchug.gif)

[mepstein]

I think I am going to try John Bell for this gauge modification. The work I have seen is top notch. Anyone have a contact number for him? If so, please PM it to me. (IMG:style_emoticons/default/beerchug.gif)

I just pm’d you.
I can’t recommend him enough. Super guy, super great work.

[Cairo94507]

Thanks Mark. I have seen his work and agree 100%. I called and left him a message as well as sending him an email with a couple pics. (IMG:style_emoticons/default/beerchug.gif)

[Cairo94507]

OK, we got the 0-10 Bar oil pressure sender, dual-pole unit with the adapter swapped onto the engine today...kind of a biatch to get in there. My next move is to send my gauge to John Bell for him to match the gauge to the sender, 0-140 lbs. I will probably do that in about a month when it starts raining as the car will be down for about a month with the gauges out. (IMG:style_emoticons/default/beerchug.gif)

[930cabman]

When does it end?

Great project and I will admit I wish this one was in my stable

(IMG:style_emoticons/default/beerchug.gif)

[Cairo94507]

Right? I think we are getting close to the end...maybe. I really enjoy my car and the only thing that will stop me "upgrading" is if my wife lets me buy a '98 993 S coupe; I really love that body style, we had a '97 coupe we bought new in '97 and I should have never sold it.

Oh, No, I would not sell my Six. (IMG:style_emoticons/default/beerchug.gif)

[Cairo94507]

OK, finally getting back to working on may list of things I still want to do. I pulled the gauges and shipped them off to John Bell. I can't wait to get them back in about 5 weeks. I am having the "scale" corrected to match the oil pressure sender as well as a little creative stuff. Should look pretty cool.

[mb911]

Similar to mine.

[Cairo94507]

Well thought out; I did not want to have to add extra gauges as I wanted to stay close to stock-ish in appearance. (IMG:style_emoticons/default/beerchug.gif)

[Steve]

(IMG:style_emoticons/default/beerchug.gif)
Looking good!!