subframe mounts?
Turbo Mini Forums

should i solid mount the whole front subframe?
just wondering wether any of the mounts should stay standard.

i suppose it would help stiffen up the front end after fitting the turbo bulkhead box.

Edited by adam1330 on 11th Aug, 2004.

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

it makes it noisy, but the rubber mountings will keep breaking and give a vague feel to the handling ,suggest poly type as comprimise if noise is an issue

i only solid mounted mines the other week :) well worth it!

however id think twice(or 3 times) about solid mounting some mounts and not others.. this is because if you say solid mount the floors and not the towers, then the towers will be free to move, but the floor mounts will not, this ANY movement in the front frame wil get transmitted through the floor mounts only, placeing lots of stress on them, leading to ripped floors and the like., so IMHO either poly mount it all, solid mount it all, or ruber mount it all..

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

should add, there is a little extra noise (mostly engine vibrations geting transmitted through) but general road noise, seems exactly the same.. bit of dynamat would cure the high frequencies and your laughting :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

thanks for the advice evolution, was thinking of solid mounting the towers and the front mounts and then poly mounting to the floors. from what you say i think i will solid mount to the floors aswell now.

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

I solid mounted towers and floor mounts ... they were buggers to fit btw

And the Orange poly bush tear drops on the front ...

My rekoning is that most of the work is done by the tower and back mounts anywayz

but thenm I could be wrong .... and usually am !

S

TurboLessTosser

Do em all solid... its great!

alex

AlexF

mines pre 74 so is solid as std

iain on the early cars it can be worth either double plating the floor mounts area or using big washers as I have known the floors to crack round the floor mounts on the early cars.

I thought it was pre 76 cars that had the solid mount subbys btw?

74/76 near enough

yeah they can crack but its been well sorted in that area so should be ok. if the cracks appear again they'll be sorted

B12, mine were a doddle to fit! anyways, while onthe subject, check the tower bolts daily for the first week of driving, as i found minse slacking off alot untill they settled down. Also when you get the mounts the "tower" mounts with the chamfered edges go on teh subframe side of the box-section, as these go over the weld on the subframe. i know this as one of mine wasnt chamfered and i had to relieve the metal myself!

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

heres another one, has anyone used the commercially available subframe strengthening kits? I seam welded mine and then bolted it through the bulkhead as well to brace it a bit more.

Are the kits worth bothering with or not?

my front subrame is solid mounted. I have also welded plates to the floor where it is bolted to. I have also bolted it in two places just below the bulkhead box

Team Racing

the front subrame can crack on the arch up to the holes (2)as the subframe 'spreads' you can brace across the lowest part 'connecting 'where the bottom arms locate, and go below the exhaust , make it bolt on though.

that sounds like a good plan, cheers stuart.
also thanks to jimster for the idea about bolting the subframe just below the bulkhead box.
by the way i'm fully solid mounting it now.

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

the garage that fit my new front panel didnt put any front mounts on my front subframe, it then went straight for respray. A week later, all along the top of the wing's seams' paint was cracked :(

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