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

[Steve]

Yes, both senders are wrong for those gauges. The temp sender should be 90164163200 and no clue on the pressure gauge since early stock 911 combo gauge with that temperature gauge is 0-140 PSI, not 80. The stock 3.6 pressure sender is 0-5 Bar, which is 0-72.52 PSI, so your close...

[Steve]

When is the 915 going in?

Haven't heard, is a G50 an option in our teeners?

have one in my 930, it's sweet

I have seen it done, but the ones i have seen are upside down, have to cut the trunk and use a cable shifter.

[ClayPerrine]

When is the 915 going in?

Haven't heard, is a G50 an option in our teeners?

have one in my 930, it's sweet

I looked into this when building my 4.0L six.

The G-50 is a very robust, well shifting transmission. But unfortunately it won't work on a mid engine car without running it upside down. The bell housing bolt pattern on an air cooled Porsche motor asymmetrical, so you have to redrill the bell housing to run the G-50 transmission upside down. Then you have to redrill the drain plug and the vent in the transmission. You have to setup some sort of shift linkage that will work the factory shift rod. To make it fit in a 914, you have to cut the bottom out of the rear trunk to clear the transmission. And the axle angles are really absurd when running a G-50.

That and the fact that a clapped out G-50 will run you 10K. Then you have to rebuild it before it is usable.

That's why I chose a G-86-21 from a Boxster S/Cayman S. They shift as good as or better than a G-50,they are already mid engine, the axle angles are good, and they are cable shifted. But there are other drawbacks to them as well.

If I ever win the lotto, I will have G-86-21 cases made up with a G-50 bell housing and mounts for the rear of the trans that will fit a 914.

[rick 918-S]

When is the 915 going in?

Haven't heard, is a G50 an option in our teeners?

have one in my 930, it's sweet

I looked into this when building my 4.0L six.

The G-50 is a very robust, well shifting transmission. But unfortunately it won't work on a mid engine car without running it upside down. The bell housing bolt pattern on an air cooled Porsche motor asymmetrical, so you have to redrill the bell housing to run the G-50 transmission upside down. Then you have to redrill the drain plug and the vent in the transmission. You have to setup some sort of shift linkage that will work the factory shift rod. To make it fit in a 914, you have to cut the bottom out of the rear trunk to clear the transmission. And the axle angles are really absurd when running a G-50.

That and the fact that a clapped out G-50 will run you 10K. Then you have to rebuild it before it is usable.

That's why I chose a G-86-21 from a Boxster S/Cayman S. They shift as good as or better than a G-50,they are already mid engine, the axle angles are good, and they are cable shifted. But there are other drawbacks to them as well.

If I ever win the lotto, I will have G-86-21 cases made up with a G-50 bell housing and mounts for the rear of the trans that will fit a 914.

[rick 918-S]

When is the 915 going in?

Haven't heard, is a G50 an option in our teeners?

have one in my 930, it's sweet

I looked into this when building my 4.0L six.

The G-50 is a very robust, well shifting transmission. But unfortunately it won't work on a mid engine car without running it upside down. The bell housing bolt pattern on an air cooled Porsche motor asymmetrical, so you have to redrill the bell housing to run the G-50 transmission upside down. Then you have to redrill the drain plug and the vent in the transmission. You have to setup some sort of shift linkage that will work the factory shift rod. To make it fit in a 914, you have to cut the bottom out of the rear trunk to clear the transmission. And the axle angles are really absurd when running a G-50.

That and the fact that a clapped out G-50 will run you 10K. Then you have to rebuild it before it is usable.

That's why I chose a G-86-21 from a Boxster S/Cayman S. They shift as good as or better than a G-50,they are already mid engine, the axle angles are good, and they are cable shifted. But there are other drawbacks to them as well.

If I ever win the lotto, I will have G-86-21 cases made up with a G-50 bell housing and mounts for the rear of the trans that will fit a 914.

Double post

[rick 918-S]

When is the 915 going in?

Haven't heard, is a G50 an option in our teeners?

have one in my 930, it's sweet

I looked into this when building my 4.0L six.

The G-50 is a very robust, well shifting transmission. But unfortunately it won't work on a mid engine car without running it upside down. The bell housing bolt pattern on an air cooled Porsche motor asymmetrical, so you have to redrill the bell housing to run the G-50 transmission upside down. Then you have to redrill the drain plug and the vent in the transmission. You have to setup some sort of shift linkage that will work the factory shift rod. To make it fit in a 914, you have to cut the bottom out of the rear trunk to clear the transmission. And the axle angles are really absurd when running a G-50.

That and the fact that a clapped out G-50 will run you 10K. Then you have to rebuild it before it is usable.

That's why I chose a G-86-21 from a Boxster S/Cayman S. They shift as good as or better than a G-50,they are already mid engine, the axle angles are good, and they are cable shifted. But there are other drawbacks to them as well.

If I ever win the lotto, I will have G-86-21 cases made up with a G-50 bell housing and mounts for the rear of the trans that will fit a 914.

If the 901 wasn't a mag case you could cut the bell housing off and weld one on the G-86

[ClayPerrine]

When is the 915 going in?

Haven't heard, is a G50 an option in our teeners?

have one in my 930, it's sweet

I looked into this when building my 4.0L six.

The G-50 is a very robust, well shifting transmission. But unfortunately it won't work on a mid engine car without running it upside down. The bell housing bolt pattern on an air cooled Porsche motor asymmetrical, so you have to redrill the bell housing to run the G-50 transmission upside down. Then you have to redrill the drain plug and the vent in the transmission. You have to setup some sort of shift linkage that will work the factory shift rod. To make it fit in a 914, you have to cut the bottom out of the rear trunk to clear the transmission. And the axle angles are really absurd when running a G-50.

That and the fact that a clapped out G-50 will run you 10K. Then you have to rebuild it before it is usable.

That's why I chose a G-86-21 from a Boxster S/Cayman S. They shift as good as or better than a G-50,they are already mid engine, the axle angles are good, and they are cable shifted. But there are other drawbacks to them as well.

If I ever win the lotto, I will have G-86-21 cases made up with a G-50 bell housing and mounts for the rear of the trans that will fit a 914.

If the 901 wasn't a mag case you could cut the bell housing off and weld one on the G-86

The 901 clutch is too small for the engine I have.

But I actually thought about that using a 964/993 G-64 AWD transmission partial case,

(IMG:https://blobs.autobahnparts.com/media/Default/_Profiles/91318dec/c9d8afc8/1-40.jpg)

Cutting the bell housing portion off, cutting the bell housing off of a G-86-21 case, and welding the two together. But it would take a lot of time to get it fitted correctly. And I am not a welder. I don't have the skill level necessary to do that. So the welding would cost a fortune.

Sorry about the thread hijack...... (IMG:style_emoticons/default/hijacked.gif)

[Cairo94507]

@Steve - OK, I ordered that sender from RM European. I am trying to source the fitting from Porsche to allow that to screw into the 3.6. (IMG:style_emoticons/default/beerchug.gif)

[Steve]

@Steve - OK, I ordered that sender from RM European. I am trying to source the fitting from Porsche to allow that to screw into the 3.6. (IMG:style_emoticons/default/beerchug.gif)

@cairo94507 Both senders look the same physically. Let us know if their is a difference. I also have a temp gauge like yours and was debating on putting it in someday. I was just anal on crooked numbers in the 904 pod, versus the stock one doesn't matter since its just a white area and red area. Another future project...

[ClayPerrine]

@Steve - OK, I ordered that sender from RM European. I am trying to source the fitting from Porsche to allow that to screw into the 3.6. (IMG:style_emoticons/default/beerchug.gif)

@cairo94507 Both senders look the same physically. Let us know if their is a difference. I also have a temp gauge like yours and was debating on putting it in someday. I was just anal on crooked numbers in the 904 pod, versus the stock one doesn't matter since its just a white area and red area. Another future project...

The oil pressure sender on a 3.6 has a threaded base that is about 19mm (estimated). The oil pressure sender for that gauge has an 8mm threaded base. You have to have the adapter to put it in a 3.6L engine.

[Cairo94507]

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

[ClayPerrine]

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

Buy one of the plugs, drill it out and tap it to the correct size for the sender.

[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)

[Cairo94507]

Thanks Andy. Interesting indeed; maybe my sender is OK and I just need to have PAS change the gauge to one with a higher scale. (IMG:style_emoticons/default/beerchug.gif)

@ClayPerrine - Is it the same size as the oil drain plug?

[Long_ago]

Maybe there's something in the VDO catalog??

https://vdo-instruments.com/product-categor...rs-and-sensors/

[Cairo94507]

@long_ago - Good morning HB. Thanks for the referral. (IMG:style_emoticons/default/beerchug.gif)

[Steve]

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.

[Cairo94507]

OK, today we sorted the oil temperature gauge by swapping in the oil temp sender on the engine that Steve @Steve recommended. Drove it and the temperature was right at 210 degrees in traffic and sitting in stopped traffic it climbed to a high of 230 degrees. So, I am going to go back to my original thermal switch for the oil cooler fans, which I believe was 195 degree and we will probably go ahead and connect the 5 front holes into one long oval to allow more air to flow through the coolers. I know 230 degrees is not bad, 220 is ideal for oil temperature I think, but I would like it to be maybe 10 degrees cooler when in traffic in hot weather. (IMG:style_emoticons/default/beerchug.gif)

[930cabman]

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

Have your local machinist whip one up. Might be a simple fix to drill/tap an 18mm bolt

[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)