what should i use pics, links please to mount my engine?
I'd suppose this is to get better response and reduces power loss from the engine.
Has anyone done it???
How much does it fatigue a chassis???
Not half as much as it fatigues the driver...
Many pure race cars use the engine as a stressed member of the chassis, hence it can not be rubber mounted. If you are considering using a locost on
the road then some form of isolation is essential IMO, it would not be pleasant to drive for any distance without.
Hi there
Agree with the first post, The main advantage of using a solid mount is that the engine becomes part of a stressed component of the chassis increasing
the rigidity of the chassis as well as potential weight savings. Just look at a single seater with a monocoque chassis, it’s the engine / gearbox that
forms the remainder of the chassis to mount the suspension
Cheers
Ian
lsdweb ranhis 7 on solid mounts
i think he said it wasn't as bad as expected , mind you it was a road legal hillclimber that didn't see the road much, will post more later,
at work now
My mates blade engined Westy was solid mounted. Could barely tell at all. But then a bike engine is a beautifully balanced and lightweight lump of
engineering loveliness with lots of mounting points. Wouldn't want to solid mount a big old pinto engine though - would probably shake the car
to bits in no time.
Liam
bear in mind that most 4 pot car engines we're using aren't designed to be a stressed member. solid mounting them is different to using them as a stressed member.
You can normally buy stiffer engine mounts these still give you some vibration dampening but dont let the engine move as much.
suspension bush's is the most I ever use, usually solid.
Bike engines are a bit different, generaly much lighter internals and better balanced than e.g. a 2 litre car engine, so solid mounting would probably be more acceptable.
Yep, mines solid, and designed to contribute to the structure. Given I don't have seat padding, and no NVH materials (weight) it is surprisingly smooth, it's more the frequency than the amplitude - which at certain revs makes your vision blur!
i would regularyl check the welds on your mounts though as you might have an issue with fatigue cracks on the mounting cage welds in the long run
like this
HI and also keep a large supply of altenators and starters.
matt
Yep, will kill alternators on car engines solid mounted unless they are extremely well balanced.
I run the engine on my grasser solid mounted (Vauxhall XE) and the vibration is severe!
It consistently cracks the welds that hold the screen weldmesh in place, and pops the heads off the pop rivets holding the panels on pretty regularly
too. Makes your eyes itch and go out of focus at certain revs too but you don't notice when racing.
Ive used poly bushes on my pinto engine mounts. No problems to date.
quote:
Originally posted by NS Dev
Yep, will kill alternators on car engines solid mounted unless they are extremely well balanced.
I run the engine on my grasser solid mounted (Vauxhall XE) and the vibration is severe!
It consistently cracks the welds that hold the screen weldmesh in place, and pops the heads off the pop rivets holding the panels on pretty regularly too. Makes your eyes itch and go out of focus at certain revs too but you don't notice when racing.
marc at MNR- informed me to solid mount my 2.0 zetec in the vortx rt chassis, by the sounds of this post its a no no
what should i use pics, links please to mount my engine?