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> Best 914-6 engine mount
David Stowers
post Sep 15 2021, 10:53 AM
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Hi Guys
I need to choose an engine mount for my conversion. Any pros and cons of which type to go for?
I understand height on install is an issue to get a good air seal to avoid overheating issues
Thanks
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nditiz1
post Sep 15 2021, 10:54 AM
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QUOTE(David Stowers @ Sep 15 2021, 09:53 AM) *

Hi Guys
I need to choose an engine mount for my conversion. Any pros and cons of which type to go for?
I understand height on install is an issue to get a good air seal to avoid overheating issues
Thanks


Maddog OEM .
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dr914@autoatlanta.com
post Sep 15 2021, 11:02 AM
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The best buy for the smaller engines through 2.4 is maddog and we have his mounts on the shelf

for 2.7 and larger the dual club sport from Rich

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

Hi Guys
I need to choose an engine mount for my conversion. Any pros and cons of which type to go for?
I understand height on install is an issue to get a good air seal to avoid overheating issues
Thanks

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brant
post Sep 15 2021, 11:12 AM
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the PMS tilting mount has the advantage of easier motor install/removal, and also tipping for service work. may not be as important for a street car. but very helpful on a race car.
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Justinp71
post Sep 15 2021, 11:21 AM
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QUOTE(brant @ Sep 15 2021, 10:12 AM) *

the PMS tilting mount has the advantage of easier motor install/removal, and also tipping for service work. may not be as important for a street car. but very helpful on a race car.


Is this bolt or weld on? I went with Rich Johnson because it was both (weld and bolt) I thought was was a nice way to go. Just have to remove the rear brake lock up device.

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David Stowers
post Sep 15 2021, 11:24 AM
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[quote name='dr914@autoatlanta.com' date='Sep 15 2021, 09:02 AM' post='2945706']
The best buy for the smaller engines through 2.4 is maddog and we have his mounts on the shelf

for 2.7 and larger the dual club sport from Rich

[quote name='David Stowers' post='2945700' date='Sep 15 2021, 09:53 AM']
Hi Guys
I need to choose an engine mount for my conversion. Any pros and cons of which type to go for?
I understand height on install is an issue to get a good air seal to avoid overheating issues
Thanks
[/quote]

OEM or the other version? Pros and cons please. I’m not bothered about originality
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Steve
post Sep 15 2021, 11:44 AM
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[quote name='David Stowers' date='Sep 15 2021, 10:24 AM' post='2945712']
[quote name='dr914@autoatlanta.com' date='Sep 15 2021, 09:02 AM' post='2945706']
The best buy for the smaller engines through 2.4 is maddog and we have his mounts on the shelf

for 2.7 and larger the dual club sport from Rich

[quote name='David Stowers' post='2945700' date='Sep 15 2021, 09:53 AM']
Hi Guys
I need to choose an engine mount for my conversion. Any pros and cons of which type to go for?
I understand height on install is an issue to get a good air seal to avoid overheating issues
Thanks
[/quote]

OEM or the other version? Pros and cons please. I’m not bothered about originality
[/quote]
What size motor? I agree with the Doctor. Dual mounts according to Rich Johnson has less vibration than a single mount. The PMS tilting dual mount, has the advantage of trackside access to the engine. I have a Rich Johnson mount that I have used with a 2.7, 3,2 and future 3.6. Works great!
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brant
post Sep 15 2021, 12:28 PM
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QUOTE(Justinp71 @ Sep 15 2021, 11:21 AM) *

QUOTE(brant @ Sep 15 2021, 10:12 AM) *

the PMS tilting mount has the advantage of easier motor install/removal, and also tipping for service work. may not be as important for a street car. but very helpful on a race car.


Is this bolt or weld on? I went with Rich Johnson because it was both (weld and bolt) I thought was was a nice way to go. Just have to remove the rear brake lock up device.


Mines welded
I assume they all are?
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Steve
post Sep 15 2021, 01:29 PM
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QUOTE(brant @ Sep 15 2021, 11:28 AM) *

QUOTE(Justinp71 @ Sep 15 2021, 11:21 AM) *

QUOTE(brant @ Sep 15 2021, 10:12 AM) *

the PMS tilting mount has the advantage of easier motor install/removal, and also tipping for service work. may not be as important for a street car. but very helpful on a race car.


Is this bolt or weld on? I went with Rich Johnson because it was both (weld and bolt) I thought was was a nice way to go. Just have to remove the rear brake lock up device.


Mines welded
I assume they all are?

There all designed to be welded on, except for the Cross Bar Motor mount that uses the stock 4 mounting pods. I don't know of anyone making that mount anymore.
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Justinp71
post Sep 15 2021, 05:57 PM
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QUOTE(brant @ Sep 15 2021, 11:28 AM) *

QUOTE(Justinp71 @ Sep 15 2021, 11:21 AM) *

QUOTE(brant @ Sep 15 2021, 10:12 AM) *

the PMS tilting mount has the advantage of easier motor install/removal, and also tipping for service work. may not be as important for a street car. but very helpful on a race car.


Is this bolt or weld on? I went with Rich Johnson because it was both (weld and bolt) I thought was was a nice way to go. Just have to remove the rear brake lock up device.


Mines welded
I assume they all are?


The Rich Johnson is both. So you have about 4 thru bolts as I recall that take some of the load thru the firewall and its also stitch welded. I personally liked this as an extra safety measure.
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930cabman
post Sep 15 2021, 06:10 PM
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QUOTE(nditiz1 @ Sep 15 2021, 10:54 AM) *

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

Hi Guys
I need to choose an engine mount for my conversion. Any pros and cons of which type to go for?
I understand height on install is an issue to get a good air seal to avoid overheating issues
Thanks


Maddog OEM .


By far, Maddog has a setup that fits perfect
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Tdskip
post Sep 16 2021, 06:09 AM
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The Naro mount is easy to install and everything fit (once mounted slightly higher than directions indicate as discussed here extensively) BUT I haven’t run it yet and am a bit concerned over NVH compared to the Maddog and factory style set up.
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ClayPerrine
post Sep 16 2021, 06:12 AM
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I have had the Rich Johnson mount. While it is a little harder to get the bolts in the mounts when installing the engine, it works great with the big 4.0L engine I have.

I had the body shop put in the mount when I had the paint and body work done. They put it exactly where the directions said, and I have had no issues with it at all.


Clay
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lesorubcheek
post Sep 16 2021, 08:24 AM
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One issue to consider is the brake pressure regulator. It's been mentioned that cars with the later setup likely have to relocate the regulator farther toward the driver's side so it has proper clearance with the /6 mount. Looks like in the PET the change was made in the '74 model year after VIN 4742915751. Do all styles of the /6 mounts have this issue? Pretty sure I've read posts where the OEM style mount has the problem. Just looking, I'd guess the Bulkhead mount would also, but can't be sure.

Dan
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Steve
post Sep 16 2021, 09:04 AM
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QUOTE(lesorubcheek @ Sep 16 2021, 07:24 AM) *

One issue to consider is the brake pressure regulator. It's been mentioned that cars with the later setup likely have to relocate the regulator farther toward the driver's side so it has proper clearance with the /6 mount. Looks like in the PET the change was made in the '74 model year after VIN 4742915751. Do all styles of the /6 mounts have this issue? Pretty sure I've read posts where the OEM style mount has the problem. Just looking, I'd guess the Bulkhead mount would also, but can't be sure.

Dan

I’m using the Rich Johnson mount with a “T” instead of the regulator. No mounting issues. In over 30 years of autocross and street driving I never had an issue with the T.
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ClayPerrine
post Sep 16 2021, 09:29 AM
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QUOTE(lesorubcheek @ Sep 16 2021, 09:24 AM) *

One issue to consider is the brake pressure regulator. It's been mentioned that cars with the later setup likely have to relocate the regulator farther toward the driver's side so it has proper clearance with the /6 mount. Looks like in the PET the change was made in the '74 model year after VIN 4742915751. Do all styles of the /6 mounts have this issue? Pretty sure I've read posts where the OEM style mount has the problem. Just looking, I'd guess the Bulkhead mount would also, but can't be sure.

Dan



I have Boxster calipers, so they are sized for a mid engine car. I pulled the valve and put in a T to replace it.
So I don't know if it hits or not.


Clay
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Steve
post Sep 16 2021, 10:26 AM
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QUOTE(ClayPerrine @ Sep 16 2021, 08:29 AM) *

QUOTE(lesorubcheek @ Sep 16 2021, 09:24 AM) *

One issue to consider is the brake pressure regulator. It's been mentioned that cars with the later setup likely have to relocate the regulator farther toward the driver's side so it has proper clearance with the /6 mount. Looks like in the PET the change was made in the '74 model year after VIN 4742915751. Do all styles of the /6 mounts have this issue? Pretty sure I've read posts where the OEM style mount has the problem. Just looking, I'd guess the Bulkhead mount would also, but can't be sure.

Dan



I have Boxster calipers, so they are sized for a mid engine car. I pulled the valve and put in a T to replace it.
So I don't know if it hits or not.


Clay

I’m also running boxster calipers front and rear with a 911 parking brake.
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Luke M
post Sep 16 2021, 12:09 PM
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QUOTE(lesorubcheek @ Sep 16 2021, 07:24 AM) *

One issue to consider is the brake pressure regulator. It's been mentioned that cars with the later setup likely have to relocate the regulator farther toward the driver's side so it has proper clearance with the /6 mount. Looks like in the PET the change was made in the '74 model year after VIN 4742915751. Do all styles of the /6 mounts have this issue? Pretty sure I've read posts where the OEM style mount has the problem. Just looking, I'd guess the Bulkhead mount would also, but can't be sure.

Dan



I just went through this with my brothers 914. He has a 74 with the RJ 6 conversion mount welded in place. Yes, the pressure regulator needs to be relocated or swapped out for a T fitting. You also need new brake lines bent to fit properly. We went with the T fitting. The brakes he is using are PMB converted GT 6 calipers in the rear, and 911 Aluminum S calipers up front.

If I where to do another 6 conv I would use the OEM style Maddog mount setup which is a copy of the factory 6 mount.


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SKL1
post Sep 16 2021, 12:55 PM
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If using the maddog mount, do people recommend the wevo or uro option?
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lesorubcheek
post Sep 16 2021, 01:26 PM
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First, David, thanks for starting this thread and asking the question. Forgive me if I'm jumping in a little too anxiously, but this is the exact question I'm trying to answer also. Trying to get all the ducks in a row for what's needed and the engine mount is one of the very important details.

QUOTE(Luke M @ Sep 16 2021, 01:09 PM) *

I just went through this with my brothers 914. He has a 74 with the RJ 6 conversion mount welded in place. Yes, the pressure regulator needs to be relocated or swapped out for a T fitting. You also need new brake lines bent to fit properly. We went with the T fitting. The brakes he is using are PMB converted GT 6 calipers in the rear, and 911 Aluminum S calipers up front.

If I where to do another 6 conv I would use the OEM style Maddog mount setup which is a copy of the factory 6 mount.


That looks very nice. Better to say amazingly beautiful! Truly inspirational work. Thanks for verifying with your experience and recommendations.

QUOTE(SKL1 @ Sep 16 2021, 01:55 PM) *

If using the maddog mount, do people recommend the wevo or uro option?


Yes, perfect next question. You read my mind.

Dan
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