displaying posts 1 to 13 of 13

Author Subject: Rallye-Spec Lower engine mount
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

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Post #1
...For when you just don't want to take a dump before every drive....Whistle LOL



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- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
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Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 11th Feb 2017 at 00:31
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

Posts: 8,882

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Post #2
3D printed by the looks of it too?

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Posted 11th Feb 2017 at 12:08
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

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Post #3
Yeah, it's a test piece just for checking dimensional tolerances, flex, etc, so I can then make a mould for poly ones (albeit with thicker walls, obviously).

Mind, I made this one so it takes a polybush from 70-90 shore in the centre so it's usable as it is once I've checked things over. Should give it a progressive spring rate with preloading the same as the shaped polybushes I used in the later ally ones, it does flex....just not much LOL

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 11th Feb 2017 at 13:39
phillipm

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Location: Rotherham

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Post #4
Done some more work on these, to the point where I've finally got a poly one that's going in the coupe tommorow:



Quite a lot of modifications both to suit the poly and give it progressive stiffness, as well as low stiffness laterally and in twist to take out vibration but much stiffer radially to reduce the torque reaction.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 28th May 2017 at 21:06
phillipm

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Location: Rotherham

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Post #5


It worked out light enough for me, 150g with the steel centre tube in.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 30th May 2017 at 23:41
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

Posts: 8,882

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Post #6
Top work! Thumbs up

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Posted 31st May 2017 at 07:02
RallyeRed

Regular

Location: Northwich

Registered: 03 May 2016

Posts: 353

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Post #7
Nicely done Phil. Look forward to hearing how you get on with it.
Posted 31st May 2017 at 10:12
phillipm

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Location: Rotherham

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Post #8
Well, so far, the MOT man wants one for a paperweight "because it looks cool", and from a quick spin around before the test there's no real issues, it idles as smooth as an OE mount - even from cold with a jump start (cars been parked 3 months), and very little in the way of unwanted slop when accelerating or braking, etc.
To be honest I probably could have made it even stiffer, it just feels like an OE mount without the movement Big grin

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 31st May 2017 at 21:14
miki4

Regular

Location: Cologne

Registered: 09 Nov 2015

Posts: 390

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Post #9
How much would one be? Big grin
Posted 1st Jun 2017 at 00:21
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

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Post #10
About £40 so long as everything tests out okay with it, although this is the small 65mm mount for the v6, needs scaling a little Big grin

Maybe £35 on a group buy Whistle

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 1st Jun 2017 at 00:45
mik

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Location: Kent

Registered: 17 Feb 2011

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Post #11
Looks nice. I'll get one if they become available.

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Posted 1st Jun 2017 at 12:31
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #12
your description of it sounds ideal for what I want, I'm not keen with the solid rubber type like bbm but sometimes they are a necessity, like when you have a 4 branch manifold in a 205, or 50% more torque!

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Posted 1st Jun 2017 at 12:50
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

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Post #13
The nice thing about these is I can quite easily customise the stiffness for different people by thickening the centre rib or changing the stiffness of the centre insert before they're bonded.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 1st Jun 2017 at 13:11

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