Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

8 Pages V < 1 2 3 4 5 > »   
 Reply to this topicStart new topic
> Reproducing the Stock 914/6 Engine Mount, and comparison to alternatives
jimkelly
post Sep 3 2013, 01:24 PM
Post #41


Delaware USA
****

Group: Members
Posts: 4,969
Joined: 5-August 04
From: Delaware, USA
Member No.: 2,460
Region Association: MidAtlantic Region
as for solid mounts - i think when using them - it is important to remove engine and trans evenly - cause if you start to lower engine or trans, first, you run the risk of twisting the opposite mount bracket or worse - i'd think.

were as rubber would give some and provide some play.

ps - that is one kick ass bell crank on zonker !!!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Sep 3 2013, 02:06 PM
Post #42


Resident German
*************************

Group: Admin
Posts: 41,669
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California
QUOTE(McMark @ Sep 3 2013, 12:16 PM) *
Any idea where this would mount

I've seen pictures but it's been a while. I thought they were still doing this on (at least some of) the newer cars.
(IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
RON S.
post Sep 3 2013, 05:02 PM
Post #43


9140430841, FINALLY RUNNING
***

Group: Members
Posts: 1,212
Joined: 22-May 03
From: WALTERBORO,S.C.
Member No.: 724
Region Association: South East States
Mark,

In the For What It's Worth dept. I've been running the 993 engine in the Rocket now for 4 years, and about 4000 miles. It's sitting on the stock 914/6 frame mount, rubber mount, and -6 engine mount.
The driving experience is pure torque and adrenaline. I love thrashing it.

I've noticed no issues so far.

The trans is using a Guard LSD, and the transmission mounts I got are the Wevo Blue urethane units.
I don't know if these help keep things in check, but nothings broke so far.


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 3 2013, 05:15 PM
Post #44


Custom Member
***************

Group: Members
Posts: 24,585
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
my 84 carerra uses a hydraulic damper in the rear and from what I read its required after the 3.2 for vibration more than torque..

The motors hit a harmonic balance that can make things shake to much...

For the front mount on a 2.4 motor....go for it.
I will buy one if you figure it out.

rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post Sep 3 2013, 06:02 PM
Post #45


914 Wizard
**********

Group: Members
Posts: 11,632
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
Ron. That's a big no-no in racer circles to mount a fuel gauge on the motor. A fire waiting to happen. I've seen a 911 light up at the track from exactly that mistake.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Sep 3 2013, 06:08 PM
Post #46


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Elliot and Ron, thanks for the real work experiences! Glad to hear positive impressions.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
pcar916
post Sep 3 2013, 06:37 PM
Post #47


Is that a Lola?
***

Group: Members
Posts: 1,523
Joined: 2-June 05
From: Little Rock, AR
Member No.: 4,188
Region Association: None
QUOTE(r_towle @ Sep 3 2013, 06:15 PM) *

my 84 carerra uses a hydraulic damper in the rear and from what I read its required after the 3.2 for vibration more than torque...


Is your '84 a cab? Mine is, and I've only seen the shock on cab cross-members, not on coupes or targa's. There wasn't one on my 993 cross-member when I got that engine either. Can't speak to the 964's... Don't run across them very often.

~Ron
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Sep 3 2013, 08:06 PM
Post #48


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
I'm pretty sure this is beaten to death at this point. But I checked out the Porsche online parts catalogs, and found the Carrera GT PET. Center engine mount and no additional support braces. I'm done looking. (IMG:style_emoticons/default/wink.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 3 2013, 08:27 PM
Post #49


Custom Member
***************

Group: Members
Posts: 24,585
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Mine is a cabriolet
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Sep 3 2013, 08:31 PM
Post #50


Resident German
*************************

Group: Admin
Posts: 41,669
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California
QUOTE(r_towle @ Sep 3 2013, 07:27 PM) *
Mine is a cabriolet

That might have been it. My memory is a bit foggy.

So the dampener on the cabriolets is for engine vibration, not torque?
(IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 3 2013, 08:33 PM
Post #51


Custom Member
***************

Group: Members
Posts: 24,585
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
QUOTE(SirAndy @ Sep 3 2013, 10:31 PM) *

QUOTE(r_towle @ Sep 3 2013, 07:27 PM) *
Mine is a cabriolet

That might have been it. My memory is a bit foggy.

So the dampener on the cabriolets is for engine vibration, not torque?
(IMG:style_emoticons/default/idea.gif)

Yes, from what I read, and it's really not that much.
Just told that I must have it....lots of opinions why, and I am all set, I have it.

Car really does not have that much torque, so even when going from zero to 100 it does not twist...

If your curious, go search the bird board.....loads of opinions
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Sep 3 2013, 08:44 PM
Post #52


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Took me awhile to find this little sucker. Mostly because I was looking for something substantial. (IMG:style_emoticons/default/rolleyes.gif) It's so cute... (IMG:style_emoticons/default/tongue.gif)

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-419-1378262672.1.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Sep 3 2013, 09:08 PM
Post #53


Resident German
*************************

Group: Admin
Posts: 41,669
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California
QUOTE(McMark @ Sep 3 2013, 07:44 PM) *
Took me awhile to find this little sucker.

Yepp, that's the one. I always thought that was for dampening the engine twist under load, but i guess that is not the case ...

(IMG:style_emoticons/default/popcorn[1].gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 3 2013, 09:28 PM
Post #54


Custom Member
***************

Group: Members
Posts: 24,585
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Honestly don't recall, but I recall lots of discussion about vibration...
Mine does not vibrate....wonder what it would do it I removed that...
(IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 3 2013, 09:40 PM
Post #55


Custom Member
***************

Group: Members
Posts: 24,585
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Just went and looked again and it seems the two differences are this damper, and a rubber mount in the middle of the engine support bar, both are only on the cabriolet.

Still no real definitive answer if its for vibration or to keep the chassis from twisting...

Seems more like vibration, and some very good point were made regarding the transfer of twisting stress from a race car chassis to the engine castings and how porsche made every effort to avoid that transfer of twisting stress.

So oddly, at least how I am reading this, it may be to protect the engine castings from the chassis versus protecting the chassis from the engine twisting...

Sounds more viable that they wanted to isolate the engine castings from the more twisty cabriolet rear clip...which might move around more than a coupe..and could damage the engine...

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Sep 3 2013, 09:47 PM
Post #56


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Interesting twist of perspective Rich! (IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 3 2013, 09:51 PM
Post #57


Custom Member
***************

Group: Members
Posts: 24,585
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Well, stock setup and I can lift a front wheel at an autox on street tires....so it's not that weak.

Also makes me think that when (not if) I put a big six in my 914, I will rethink the solid mounts that everyone seems to lean towards and isolate the motor a bit more...
Car vibrate plenty on its own.

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Oct 26 2013, 11:04 PM
Post #58


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Prototype mounts have been laser cut. Next week they get welded together. I had a jig from a previous project for locating the stock six mount bolt. But a real six mount came up for sale last week and I snagged it. I got it today and checked against my jig. They lined up, and now I know for sure.

Pics soon... (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ConeDodger
post Oct 27 2013, 08:55 PM
Post #59


Apex killer!
***************

Group: Members
Posts: 23,607
Joined: 31-December 04
From: Tahoe Area
Member No.: 3,380
Region Association: Northern California
Pics now! Pics now! (IMG:style_emoticons/default/drooley.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Oct 27 2013, 09:51 PM
Post #60


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Tomorrow. (IMG:style_emoticons/default/wink.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

8 Pages V < 1 2 3 4 5 > » 
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 3rd June 2024 - 07:17 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...