Reply With QuoteWhat apeared to be the purpose of the fins on the callipers (perhaps cooling?), and could they be physically reduced to avoid scraping?
TIA.
ChatterBox
Well, I had a new RRS 3.0 ltr for the day, and took the opportunity to see what issues there were with trying to fit smaller rims than the std 19".
Neither the LR or the Dynamic 17" rims fit (but I didn't expect them to).
There was some conjecture on a UK site that the Avanti Photon 18" rims might fit. Unfortunately, these are no longer in production, so I couldn't get any to try. However, the state distributor for GMAX was sure he had one that would fit, so he came down to the workshop with a couple of sample rims. They didn't fit
The 3 Ltr calipers have several protruding 'fins' that just scraped the inside of the GMAX rim. Apparently this is part of the 'top-down' design approach that reduces the requirement for a hoist - you can easily check the pad wear with the wheel on.
GMAX did say they make an 18" that is slightly larger internally, but it's load-rating wouldn't be suitable for either the D4 or the RRS. They are going to get me a price on a special-order rim, but I imagine that would be costly, and they'll require a minimum order of 15 sets.
A forged rim might fit (as the casing is thinner), so they're looking around for those as well.
Compomotive also got back to me in regard to their 18" rim. They apparently now no longer sell them direct, so they have to be ordered through Bowler in the UK. Another expensive option, and there is still no guarantee that they'd fit - although they should, as the 3 Ltr doesn't have the anti-vibration lug sticking out that the Supercharged RRS did. Bowler haven't yet replied to my email.
One option I didn't try was the BMW X5 18" rim. The dealer here has a second-hand one in his yard, so I'll try and pester him into trying it on one of his demo D4's.
As there's no room in the second battery compartment any more, I tried placing an Optima Yellowtop battery in front of the factory one - it just fits (and the terminals clear the bonnet), but will obviously need a custom mounting plate made.
Gotta love that engine though. What a rush, especially in 'sport' mode
Cheers,
Gordon
Swaggie
What apeared to be the purpose of the fins on the callipers (perhaps cooling?), and could they be physically reduced to avoid scraping?
TIA.
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
ChatterBox
They don't seem to have any purpose other than aesthetics - maybe they allow easier access to the pads?
I'm sure you could grind them down 2 ~ 3 mm, but the warranty implications would scare me off that path. I should know more about the alternative rims next week.
Cheers,
Gordon
ChatterBox
The "Fins" are for cooling as the caliper is made from Aluminium or a mix of & as some have seen they are huge. So all the cooling will be required.
When u drive this 3.0Ltr & then see how it stops you will understand why.
As Gordon has said it is a rush..The term "Permagrin" just doesnt cut it anymore!
The transfer case ECU & Glow plug relay box are now situated in the Brake booster box in front of the driver. As Tim (Traxide) has suggested a tray will be required at some stage to bolt a battery to. The 2nd battery will have to sit in this position as there really is no other option for it to sit in the engine bay.
Graeme you will not be dissapointed, I promise.
Last edited by sniegy; 6th November 2009 at 06:50 PM. Reason: forgot bits..
Swaggie
But, but, I still have at least a third of the pad material on the original front pads of my (albeit manual) D2 after 210k kms, and of course the original discs too. Those brakes might outlast the engine for country drivers like me!Originally Posted by sniegy
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
ChatterBox
And the problem with that is
Wizard
And where would this tray be located (in place of the FBH on cold climate models?) ?
TIA,
Peter
ChatterBox
Peter,
That would be the place..Ooops, as our vehicles dont come with the FBH. There are a couple of pre-production vehicles here with this as seen on the launch & drive days.
But generally our vehicles will not come with the Fuel Burning Heater.
Our cold climate pack (On D4) only consists or Heated windscreen, Front seats & 2nd row outers, Steering wheel & Washer fluid. (Yes u did read correctly!)
So i can see some people making trays for the battery to sit in this position.
Cheeers.
OldBushie
Yep, working on both a tray where the FBH would normally be mounted. This location still means using a small battery ( Optima D34, 55 A/H battery ).
I’m also working on another option to allow for a much bigger battery.
Swaggie
This sounds promising. I've been pondering the fate of my D2's 80Ah AGM that was destined for the D3 aux spot.
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
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