hi im in the process of repairing my inner wings on my escort and was wondering if it was worth converting to large hole strut tops while im there or is there no benefit over having the small hole ones? whats your thoughts people? :-)
thanks in advance
There's no benefit really just keep them originalOriginally Posted by sillymofo
There's an advantage if you want to fit original spec rubber roller bearing top mounts. You can buy aluminium small hole ones but you can't buy rubber ones in small hole size. If I change the inner wings on my car I'll be converting so that I can use rubber RBTM's.
Just gives more choice (at the expense of originality!)
I changed for this reason
im guessing the rubber roller bearing top mounts give a more road friendly ride?
and originality is already out of the window as its getting tubs turrets and a cosworth engine ha ha
They do give a more friendly ride but they are also suitable for heavy duty/harder/faster driving conditions as they were originally spec'd on mk1 escorts RS2000's for use with their Group1 Bilstein suspension legs.
Defo go to larger holes there is loads more choice in top mounts I made mine bigger with a hole saw lol took bloody ages so I could fit roller bearing top mounts and very glad I did has made a really noticeable difference to the steering a lot lighter and free to move get it done it just makes sense ha ha ha
well thats decided it large holes it is thanks everyone
Original RBTM's used a roller bearing. This made the steering lighter than standard hence their use for the top end/competition cars. The rubber part provides some level of shock absorbsion which helps the shell. Even the standard type of top mount incorporates a rubber part for this reason. Alloy ones have been known to provide a harsher ride and even break due to the lack of any shock absorbing rubber.
There are two versions of the original style RBTM now, the OEM with roller bearing or a new version with a spherical bearing. This new one is capable of taking higher angles of caster/camber BUT will not improve how light the steering feels!
Can you expand on the following statement:
BUT will not improve how light the steering feels!
Cheers !
David
I make this statement based on the advert on RIX Engineering's web site:
http://www.motorsport-tools.com/ford...rbtm-type.html - OEM, note the comment 'These top mounts have serviceable roller bearings for lighter steering, not to be confused with the similar looking spherical top mounts.'
http://www.motorsport-tools.com/rbtm...e-jointed.html - spherical bearing, allow more castor/camber than the original could handle.
Also, rallydesigns website:
http://www.rallydesign.co.uk/product...65lqicm6a2l0a1 - note the comment 'So Rally Design can now offer two styles of roller top - this latest OEM style (RD348): ideal for OEM vehicles. A faithful copy of the original taper roller bearing top mount able to accept high axial load, but also with low steering effort. The Hi-angular style (RD300) : ideal for vehicles which are subject to high degrees of either castor or camber angles, but with a higher steering effort.'
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