V70R C70 Convertible Subrame Conversion

[MA'R'K]

Hello stranger

Hey James...... how the devil are you? Long time no see! I've been silly busy I'm afraid..... trying to get back into the cars atm!

[MA'R'K]

That mount is used for a gearbox mounting, my AWD has one instead of a rear engine mount (as the angle gear is in the way).

You can see the mounting attached to the subframe in the first pic of post #2. It basically bolts to the end of the gearbox.

Not sure why a C70 would have one unless it doesn't have a rear engine support for whatever reason, or maybe it was there for extra bracing like the other C70 parts on the subframe.

I really don't understand why the convertible had this mount.... I was in two minds whether to remove the box section or not..... in the end it was a wise choice though as its very tight down there with the M59 box. This is a fwd manual V70R btw.

[abdul]

nice job

[MA'R'K]

Some dodgy pics of the assembly on the car....

[Wobbly Dave]

Looks very nice. How much does all that extra pig iron weigh?

[Dangerous Dave]

That is some serious bracing

Looking good bud!

[MA'R'K]

Looks very nice. How much does all that extra pig iron weigh?

Hi Dave, hope you're well mate, sorry to hear your sad news recently!

It doesn't weigh a great deal as the brackets / plates are already there on std setup.... they are obviously beefed up somewhat though.... and added to the actual braces, I would imagine 10kg more than std? I really should have weighed it

[Dangerous Dave]

Was this fitted to all ragtop C70s? There's a few breaking on ebay.....

[MA'R'K]

Was this fitted to all ragtop C70s? There's a few breaking on ebay.....

I originally thought the solid aluminium subframe mounts were only on early ragtops, however this came off a 2000 model so I would imagine it could be across the board?!



When I get around to it, I shall put a full parts list on here for anyone who wants to tackle this

[Wobbly Dave]

Another possible mod going on my list - only issue is clearance on my 3 inch cat back - my tunnel brace went in the bin many years ago.

I put the plastic inserts in my sub-frame - but I wonder with over 400bhp I should also need solid ones.

Question springs to mind - can you overstiffen the chassis?

[MA'R'K]

Another possible mod going on my list - only issue is clearance on my 3 inch cat back - my tunnel brace went in the bin many years ago.

I put the plastic inserts in my sub-frame - but I wonder with over 400bhp I should also need solid ones.

Question springs to mind - can you overstiffen the chassis?

That was my concern too when tackling this.... I was originally going to go down the tubular frame route like fandango has, however, I've always strived to set my car up as a road/GT setup so I didn't wan't to go too mad on the stiffening. This is why I've stuck with OEM engine mounts rather than solid..... and also keeping the 20mm ARB with polys rather than a stiff as heck 22mm uprated ARB as they can make the ride very hard.....especially when dealing with potholes etc!

From driving the car for a few days now, this appears to be a good 'fast road' setup, retains the comfort and really helps the line you take into a corner.... and getting power down earlier when coming out of corners

I can see your problem with the 3 inch cat back, though I'm sure this would be a good basis to start from, some modifying of the rear fixing plate maybe required, but surely easier (and a heck of a lot more cost effective!!!) than other routes?

[Wobbly Dave]

i may have to forego the rear-most brace for that reason.

[WOODY T5]

Another possible mod going on my list - only issue is clearance on my 3 inch cat back - my tunnel brace went in the bin many years ago.

I put the plastic inserts in my sub-frame - but I wonder with over 400bhp I should also need solid ones.

Question springs to mind - can you overstiffen the chassis?

just get some super glue for your tyre's dave it be right lol