LocostBuilders - powered by XMB

MG TF Rear Uprights

zilspeed - 6/1/10 at 08:05 PM

British Trident pointed these out earlier, but his post got rather lost in a thread.

I think these are significant enough to warrant their own post.

Let me think, these or an old Sierra hub bolted up to a hub carrier which you have to buy or have fabricated.

That's a tricky one...

Not completely usefull for someone building a kit, but for a special builder, an interesting part.

[Edited on 6/1/10 by zilspeed]
Rescued attachment TF Rear Hub.jpg

marcjagman - 6/1/10 at 09:32 PM

Does the sierra bearing fit these or do you have to use MGF hubs and make shafts fit?

orton1966 - 6/1/10 at 09:44 PM

looked on ebay and pricing looks very good, does anyone know how they stand weight wise against the fabricated Haynes type? Also if using MGF hubs PCD is something like 95mm!

zilspeed - 6/1/10 at 09:51 PM

quote:
Originally posted by marcjagman
Does the sierra bearing fit these or do you have to use MGF hubs and make shafts fit?

That, I couldnt tell you, but I would be inclined to use the TF hubs and cv joints.
To me, the point about them is that they are intended to be used pretty much in an identical fashion to the manner in which I would want to use them anyway.

zilspeed - 6/1/10 at 09:57 PM

quote:
Originally posted by orton1966
looked on ebay and pricing looks very good, does anyone know how they stand weight wise against the fabricated Haynes type? Also if using MGF hubs PCD is something like 95mm!

95.25 if youre being completely pedantic...

A very quick google finds modified hubs at 4x100mm PCD.
There are loads of wheels / brake discs available at that PCD.

orton1966 - 6/1/10 at 10:03 PM

Yes I guess switching hubs is one option but that cost has to be considered. I do fully agree that they look an interesting upright though

zilspeed - 7/1/10 at 08:59 AM

MGF rear hub exploded drawing
Rescued attachment MGF Hub Diag.jpg

40inches - 7/1/10 at 09:42 AM

Not that expensive on the BAY

brianthemagical - 7/1/10 at 10:12 AM

Fitting the Sierra hub be more of less a case of fitting a bearing with the right inner and out dimensions, and then adjusting the length of the wishbones to suit the driveshaft.

britishtrident - 7/1/10 at 05:03 PM

The hub PCD is really 3.75" ie Triumph Herald & Formula Ford

MikeRJ - 7/1/10 at 06:17 PM

quote:
Originally posted by orton1966
looked on ebay and pricing looks very good, does anyone know how they stand weight wise against the fabricated Haynes type?

I don't know about weight, but I bet they are considerably more rigid than some of the fabricated uprights I have seen.

dream - 8/1/10 at 10:26 AM

Hi guys,I want to ask you something,would it be possible to use a rod end in place of the compliance bush of the trailing arm of the MGTF?there is alot of play on this bush,http://www.mgfcar.de/epc/553.htm,number 16,http://cgi.ebay.co.uk/MG-TF%2FMGTF-Drivers-Rear-Compliance-Bush%2FMounting---_W0QQitemZ350147111823QQcmdZViewItemQQimsxq20091126?IMSfp=TL0911262030 07r11586

[Edited on 8/1/10 by dream]

zilspeed - 8/1/10 at 12:26 PM

quote:
Originally posted by dream
Hi guys,I want to ask you something,would it be possible to use a rod end in place of the compliance bush of the trailing arm of the MGTF?there is alot of play on this bush,http://www.mgfcar.de/epc/553.htm,number 16,http://cgi.ebay.co.uk/MG-TF%2FMGTF-Drivers-Rear-Compliance-Bush%2FMounting---_W0QQitemZ350147111823QQcmdZViewItemQQimsxq20091126?IMSfp=TL0911262030 07r11586

[Edited on 8/1/10 by dream]

My own thoughts are that I would only use the hub carrier, bearing and hub. The rest of the MG bits would be completely disregarded.

I'll sound like a complete twat here, but bear with me.
Conceptually, the MG bit is very similar to the rear upright used in a single seater.
It's made from cast iron as opposed to cast aluminium, but from a geometrical point of view, it's not light years away.
Maybe being made form a relatively heavy but also relatively indestructable material is a good thing for someone like me.

Ralt RT30 Rear Upright - Ł350 bare.

MG TF Rear Upright - Ł35 bare.

Now, I'm not saying they're the same thing or even close, but this is Locostbuilders after all. It's a good hub to use.

I've rambled on, I'll shut up now.

DIY Si - 9/1/10 at 01:19 PM

Quite glad you've brought this up Zil, as I've been having vague ideas about a single seater too. And also thinking about what uprights would be suitable for sustained road AND track use. I don't think that the ally uprights are quite up to long term road use round my way as the roads are too bumpy. So, as you say, accepting a weight penalty but gaining reliability and a vastly reduced cost is just fine and dandy with me!

Also, there's even some on Ebay for Ł50 new, complete with bearing and even wheel studs. You'll have to go some way to beat that I think.

DIY Si - 10/1/10 at 02:25 PM

Having had a look about for what else could be used, how do the MGTF uprights compare to the MX-5 ones? The MX-5 ones look lighter, but I don't know how they compare geometry wise.