Solid motor mounts

pkt1213 · 02-01-2006, 10:47 AM

Has anybody bought the billet motor mounts from Lindsey Racing. I was wondering what people impression of their buid quality was and how much interior vibrations and such increased. Also if you get the adjustable ones where you can drop the engine 5 or 10mm how much unneed wear and tear on the drivetrain or anything else this would cause.

fast924S · fast924S's Garage

I looked into the same thing but didnt find anyone who is running them, Lindsey racing has good quality I have been happy with all there stuff. I thinking that the vibration and noise will be more but it depends on your personal prefrence. Also if your not RACING then I would worry to much about it, Just install new stock motor mounts and you should be happy. Dropping the motor is a good idea for handeling but your also gonna be puting that oil pan very vey close to the ground and adding strees to the tranny mounts.

pkt1213 · 02-01-2006, 01:27 PM

Well I do autoX and am thinking about doing some track stuff. Also I am wanting to get the billet tranny mount anyways so I am not worried about the stress. Also we have that metal shield over the bottom over the engine area. I might wait until I get my suspention done before I lower the engine. But also those billet ones are cheaper than OEM turbo mounts and will never wear out.

fast924S · fast924S's Garage

Then go for it, Im 100% sure you will get more noise/vibration but if that doesnt worry you then I would do it. Like you said I would wait till you do your suspension until you lower the engine. Let us know your results.

pkt1213 · 02-01-2006, 01:47 PM

Or it might be easier when I put them in do it 3 times and the different heights and measure it each time with the stock height at the end. Then when I get my suspention lowered calculate the height that the oil pan would be at. Wouldn't be hard to do. You think the metal skid plate would get in the way of the lowering. I guess that would be something to ask them.

I don't know how much worse it would be vibration wise than shot mounts.

fast924S · fast924S's Garage

Well, With shot mounts you still have NO metal to metal contact, With solid engine and tranny mounts any and all vibration from the engine and drive chain will be transmited threw the body into your seat. Im not saying its a bad thing and to be honest I would do it but since I dont track her yet I dont have a need to. Ask Lindsey how much lower you can safly make the gine, They are very helpful and Im sure they will give you a accurate answere

pkt1213 · 02-01-2006, 06:03 PM

Yeah. I just wish someone had them and could tell me how much worse it is. I have already e-mailed them. I'll post what they say.

pkt1213 · 02-02-2006, 07:10 PM

Wes,

I don't have a exact clearance amount. The stock monts can sag 10mm over time or more
so there isn't any clearance issues. Plus our's won't change in height.

I would recommend our Ultra Monts. They are the best of both worlds. Plus they are
also height adjustable.

ULTRA MOUNT ADJUSTABLE HEIGHT ENGINE MOUNTS "PAIR"
Code: LR-944MM-UM

10mm at the front is nothing when you get to the back of the car 8 feet away. No angular problems
if that's what your asking.

With solid mounts, you will have vibration. With the Ultra Mounts, it will be minimal. The trans
mount will transmit gear noise into the car, but you will like the shift feel.

With kind regards,

Dave Lindey
LINDSEY RACING

JivenJim · 02-03-2006, 10:17 AM

I'm currently using these mounts. Great for Track or mostly track car (i.e. stripped interior, and less to rattle). Dave and Mike with Lindsey have been good people to work and great site, but not thrilled the Vibrations on these mounts on my hot swap. You can see my correspondence bellow including my last two emails that I wrote Dave asking for advise to reduce vibration. He did not return either request.
I did not receive any specification as I had requested below for such as for torque on the main compression. Trying to element user error and all. Additional I want to have the shop recheck their balance shaft install to make sure it not just the engine. Who knows? The Mounts could be brilliant and the 20 years Porsche Mechanic on the belts could be the problem. I do want these to work cause I ready went to the trouble to in$tall.

I would of liked Dave to responded. As I said... I think they are a good company. Not sure why no response.

Still looking for a total solution myself.

Jim

Hi Dave,

I've been busy fixing the minor bugs on my swap. Cars running fast and turning great now. Getting lighter every week.
First Autocross this week in San Diego!

Still needing to bring down the Vibration on the Engine mounts. In the next few weeks I'm looking at adding a rubber spacer between your mount and cross member and also between cross member and body. Is there a toque spec for how tight I should have your mount tightened? (single bolt)
If this doesn't help, I'm looking into possible using a different mount like a 911 sport mount? http://www.pelicanparts.com/catalog/shopcart/911M/POR_911M_UPrc91_pg29.htm
I need mounts at least 10mm below stock of ~70mm.
Do you have any suggestions?

You can see your mount in my Engine Picture.

-----Original Message-----
From: Jim Hicks
Sent: Friday, December 16, 2005 8:44 AM
To: 'David Lindsey'
Subject: Mounts for 968 in a 924S Swap

Hi Dave,

I have your Mounts LR-944MM-UM so semi solid?

I've been gettting the very strong resonance making every wire, panel and piece of metal vibrate at most RPM's.

I took out the two spacers to lower the engine height. So now I'm think about inserting a piece of hard rubber (probably from a heavy duty floor mat) in between mount & crossmember and also between crossmember and frame (so engine height remains similar)

Any Recommendations on what I should do?

Also the Stock exhaust heat shields are rattling pretty bad. Know of anything better for aftermarket.

It's going to be great after I get these kinks out.

PS. My Blinker switch is bad and needs replace. You got a used one for an earlier model 944/924S without cruise in black. Otherwise it might be the Porsche dealer.

Thanks

Jim

-----Original Message-----
From: David Lindsey [mailto:dlindsey@ionet.net]
Sent: Friday, December 16, 2005 7:44 AM
To: Jim Hicks
Subject: Re: 968 in a 924S Swap is running.

Jim,

I took a look. Looks fantastic. Great job!

Are you running solid motor mounts?

With kind regards,

Dave Lindsey
LINDSEY RACING
----- Original Message -----
From: Jim Hicks
To: David Lindsey ; Mike
Sent: Thursday, December 15, 2005 10:39 AM
Subject: 968 in a 924S Swap is running.

Hi David, Mike and Mindy,

Wanted to thanks you for all the great support and parts I got from you.

My Car is up and running great! Lowering Chassis vibration is now the biggest task.

Here's my first post on it all.

http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/256169-i-swapped-968-into-924s-post2293490.html#post2293490

If you come up with any ideas you can post there or tell me and I'll make sure you get some more credit.

Thanks,

Jim Hicks
San Diego CA

pkt1213 · 02-03-2006, 10:58 AM

Hmm. That is odd. If you hear from them or figure something out let me know.

I actualy saw your car yesterday or the day before when I was looking for motormount posts. Bad ass car. I wish I had the $$.

alex.rhodes · 03-15-2006, 07:34 AM

Was wondering if anyone had found out anymore about the vibration problems? they sell the regular solid mounts for the same price as OEM mounts and was thinking if vibration isn't too bad would go that route to save future money. Wondering if anyone has any more insight on this.

Moneyguy1 · 03-15-2006, 09:17 AM

Over time I would be concerned about metal fatigue. Aluminum is highly susceptible to brittlization (sp)