[Mgs] lowering rubber bumper car

[Max Heim]

Ron seems to be describing springs for lowering a car just to be lower — either for handling or appearance — a process that changes the spring rates as well as the height. This is a different project than trying to change the ride height of a rubber bumper MG to match that of a chrome bumper MG. Or so it seems to me.

--
Max Heim
'66 MGB

> On Jan 31, 2024, at 10:48 AM, <jimray at hartcom.net> <jimray at hartcom.net> wrote:
> 
> Guys, I found this 2019 post from Ron Looye on the www.mgexp.com <http://www.mgexp.com/> forum which may be of help in deciding which springs to use.
> 
> "Choose your front springs for a lower ride height or more aggressive spring rats. Remember to match your rear springs to your front springs. We've listed approximate heights for each spring on a chrome bumper car: GT heights will be slightly lower than listed, and rubber bumper cars will be about 3/4 inch higher than listed. Springs are sold individually."
> 
> 			Rate	Height	Moss #		Price ea.
> ROAD/UPRATED	480#	14.0"	264-385	$39.95
> ROAD/LOWERED	550#	13.8"	264-387	$52.95
> ROAD/SPRINT		#550	13.4"	264-395	$49.95
> RACE			#660	13.2"	264-335	$99.95
> 
> I used the #660 race springs on mine and they worked well for me. I'm 6 feet tall so getting in and out is a bit challenging but the look of the car is just what I was going for. The car drives amazingly with no over/under steering issues. Be sure to replace the bump stops with part number 266-590. See the attached photo to see if the ride height is what you are looking for.
> 
> Jim
> 
> -----Original Message-----
> From: Mgs <mgs-bounces at autox.team.net <mailto:mgs-bounces at autox.team.net>> On Behalf Of Max Heim
> Sent: Wednesday, January 31, 2024 12:00 PM
> To: mglist <mgs at autox.team.net <mailto:mgs at autox.team.net>>
> Subject: Re: [Mgs] lowering rubber bumper car
> 
> I can see how using cut-down springs, for example, could change the geometry. But what I am wondering is why one couldn’t just install the entire front suspension from a CB car, including the crossmember, thereby duplicating the ride height and geometry of the original design? I don’t believe the RB cars changed the tub or the attachment points of the crossmember, did they? It’s possible that I don’t know what I’m talking about, however — I have never had anything to do with RBs.
> 
> --
> Max Heim
> '66 MGB
> 
> 
>> On Jan 31, 2024, at 12:28 AM, Paul Hunt <paulbhunt73 at gmail.com> wrote:
>> 
>> Incidentally, watching a Richard Hammond's Workshop episode (a couple of years old) last night where they took a lowered GT up Prescott and round a hairpin there was a bang - just a demo run, not timed.  Opinion was it was something to do with the rack as when lowered the steering arms are no longer parallel to the ground.  That also causes bump steer.
>> 
>> PaulH.
>> 
>> On 30/01/2024 22:20, dcouncill wrote:
>>> I don't think there is much to the process for the lowering itself. Several vendors sell kits with the blocks, springs, and associated parts such as Moss:
>>> https://mossmotors.com/264-399-rubber-bumper-mgb-suspension-lowering-
>>> kit Then it's just a matter of removal and replacement.
>>> 
>>> David Councill
>>> 67 BGT, 64 B, 72B
>>> 
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