Vanne's lightweight/ interior modification thread
- Thread starter Vanne
- Start date
Lol, soo true.. in Zurich atm , thinking about what i need to tackle next. will probably do the front suspension and dtm arms next. My rear spring hats still not back from being made in Abu dhabi by my mate Conqualo. :|
Ive got to replace the cv joints on the diff and the diff hanger anyways, so that will take me a day. Guibo is in great nick, sadly ill replace that too. looks like ill have some spares when were done.
Gearbox, clutch and pipes are off the car.
Ive got to replace the cv joints on the diff and the diff hanger anyways, so that will take me a day. Guibo is in great nick, sadly ill replace that too. looks like ill have some spares when were done.
Gearbox, clutch and pipes are off the car.
I woke up late, back from Zurich and headed down to the shop, after dropping the kids off at school and got stuck into the front DTM arms.
Nothing is ever simple..
Strugeled with a part for a while and had to make a sleeve for a bolt as I wasn't happy with how they had designed this particular part of how the bolt was secured.
It's not the circled bolt, I circled that as I think this part is for preventing rotational torque of the mount against the frame, but I can't see how that bit fits together, so before modifying anything I'll ask the DTM kit designer what the purpose of that circled bolt is. It's also possible that this bolt is meant for the E46 M3 as that frame is slightly different at the front. My car will be the first z4m that this kit has been designed for, so there are a couple of changes expected. So far I am very happy with the quality, strength and design if this kit.
Sorry about the large amount of pics, but I need to be sure about any modification made to the kit, to make sure that it will be safe and performs as expeted
The issue with the bolt/insert, I think will be sorted with a slightly larger piece of metal that I'll probably weld in place, thus securing the mount in 3 dimensions. Up, down and lateral.
Nothing is ever simple..
Strugeled with a part for a while and had to make a sleeve for a bolt as I wasn't happy with how they had designed this particular part of how the bolt was secured.
It's not the circled bolt, I circled that as I think this part is for preventing rotational torque of the mount against the frame, but I can't see how that bit fits together, so before modifying anything I'll ask the DTM kit designer what the purpose of that circled bolt is. It's also possible that this bolt is meant for the E46 M3 as that frame is slightly different at the front. My car will be the first z4m that this kit has been designed for, so there are a couple of changes expected. So far I am very happy with the quality, strength and design if this kit.
Sorry about the large amount of pics, but I need to be sure about any modification made to the kit, to make sure that it will be safe and performs as expeted
The issue with the bolt/insert, I think will be sorted with a slightly larger piece of metal that I'll probably weld in place, thus securing the mount in 3 dimensions. Up, down and lateral.
Cheers, yeah really stoked how that turned out. Zero modification required at the top mount as the bottom is adjustable in all planes. Weve had to do a little engineering of our own :!: , as the rear mount had a 4mm space between the frame and the side mount, so we just welded a plate in there. Zero opportunity for any movement laterally.
Ofcourse that all means nothing untill the shake down.
Ofcourse that all means nothing untill the shake down.
Dropped the rear subframe today and finished off the front track. It's bloody wide...
Looks like it's spent 50 years under the water like titanic.. lol
Diff booked in for tomorrow at Gear Masters DXB. Full rebuild. 4.1 gears and dubble the ramps and clutches. It's gonna hook!
Did my research and I know there are good option from wavetrack and a bunch of others. This will give me the performance required , and should be half the cost of one of those.
And then the whole s**t show goes south.. freaking forgot to order 4 bearings. The outer upper and lower control arm bearings.. f**k!!
Cant go on without them.. just ordered them, on their way already to my mates warehouse in LA. It will have to come with the super charger...
Sigh.. fruck!!! so now the car is on my mates lift, hogging the whole show..
Thats not good... :thumbsdown:
Liam22 said:
Thx Bud. its a lot of work...
We had a fitment issue with the rear MRT DTM mount, Mikko from MRT (guy who designed this kit) responded within 3 hours of me emailing him (hes laid up in bed, broken leg), and the contacted me via whatapp. its as we guessed, correct, that mount takes a lateral load, so we welded a huge plate in on the mount and its now secured by 2 bolts (so 4 total) on the side as well and fits completely sung against the frame, so there is no room for any lateral movement. . I thought that would be better and its definitively a much more robust solution.
top marks for MRT's Mikko in working with us to solve any issues. Lucky i have access to a machine shop. There are other bits of the kit we've improved upon, mainly to do with sleeves and colers, but yeah pretty impressed with the kit so far..
I test fitted the front wheels today..... :lol: its wide...
long day at the shop...
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(while were waiting for the 4 bearings that are being sent to Alex's place [IMG]
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Dropped the diff of at Gear Masters Dubai to get that sorted. :!:
Pulled the airbox/TB's/Oil pump/ oil cooler...
Removed the fuel rail , secondary water pump and a bunch of other crap.
tomorrows task.. carb cleaner.. and clean the whole frikking thing..
if i have time, we might pull the brake master and clutch ..
dead.. going to bed...
So I tackled a few things today...
BMW Motorsport thermostat and oil divertor delete.
Removed...
Divertor valve in place.
An10 oil line adaptor in place.
And then this puppy...
Dinan S54 Throttle bodies. 2mm oversize.
This is versus OEM.
Doesn't look like much,but it is.
And then we did this.. still needs a huge cleanup though..
That subframe needs a hellova clean.. add it to the list.
And these are going in the bin..
And bit of surface rust work
Ready for turner monoball bearings.
So even though we did jack s**t today, I still did a bit.
BMW Motorsport thermostat and oil divertor delete.
Removed...
Divertor valve in place.
An10 oil line adaptor in place.
And then this puppy...
Dinan S54 Throttle bodies. 2mm oversize.
This is versus OEM.
Doesn't look like much,but it is.
And then we did this.. still needs a huge cleanup though..
That subframe needs a hellova clean.. add it to the list.
And these are going in the bin..
And bit of surface rust work
Ready for turner monoball bearings.
So even though we did jack s**t today, I still did a bit.
Are you doing any reinforcement for the solid subframe mounts or just leaving as is? Same for the monoball RTABs?
I’ve been looking at both of those parts recently and while nvh isn’t a concern, I do have doubts on their long term suitability regarding fatigue to the chassis.
I’ve been looking at both of those parts recently and while nvh isn’t a concern, I do have doubts on their long term suitability regarding fatigue to the chassis.
Butterfly shaft is the same. Intake bodies have been bored by 2mm :evil:
Solid subframe mounts with solid diff mounts would require reinforcement. I have akg poly diff mounts, so there will still be some movement. Ofcourse that's an educated guess. I'll have a good look over the next few days if we need to re-inforce the subframe mounts. The Rtabs are impossible to reinforce as they are built In to the slot. I don't think it will weaken the frame at all there, if anything, it will have effect on the rtab carrier. And if that's the case, you can swap those out easy enough.
Thanks for thinking about that though. I'll def have a good look at the subframe mounts this arvo.
Intake bodies have been bored by 2mm :evil: Solid subframe mounts with solid diff mounts would require reinforcement. I have akg poly diff mounts, so there will still be some movement. Ofcourse that's an educated guess. I'll have a good look over the next few days if we need to re-inforce the subframe mounts. The Rtabs are impossible to reinforce as they are built In to the slot. I don't think it will weaken the frame at all there, if anything, it will have effect on the rtab carrier. And if that's the case, you can swap those out easy enough.
Thanks for thinking about that though. I'll def have a good look at the subframe mounts this arvo.
Vanne said:Butterfly shaft is the same.
Solid subframe mounts with solid diff mounts would require reinforcement. I have akg poly diff mounts, so there will still be some movement. Ofcourse that's an educated guess. I'll have a good look over the next few days if we need to re-inforce the subframe mounts. The Rtabs are impossible to reinforce as they are built In to the slot. I don't think it will weaken the frame at all there, if anything, it will have effect on the rtab carrier. And if that's the case, you can swap those out easy enough.
Thanks for thinking about that though. I'll def have a good look at the subframe mounts this arvo.
What made me think about it was that I’d read the odd story of the E36 platform (I think) having issues around the rtab ‘pocket’. I think the solution involved some seam welding and some extra sheet metal where the bolts pass through for the carrier but I’d have to have a look again. I’d like to think BMW would have improved things for our chassis but you never know.
I’ve not come across any horror stories regarding subframe mount failure but given it was never designed to have a solidly mounted subframe like the F series M3/4, who knows.
My hunch is that it will probably be ok, especially if you’ve uprated all the mountings together, but it would be interesting to see what kind of solution you come up with.