Are those scores out of 100?
Negative numbers it looks like? Minus 9, minus 1...
OcUK Rolling Road Day 23 @ TDR & Caffeine and Machine (Warwickshire) - Saturday 26th October 2019
- Thread starter ScoobyDoo69
- Start date
Negative numbers it looks like? Minus 9, minus 1...
Any information on how best to run the Volvo V70R would be great. It has a Haldex system I believe and honestly I am unsure my old man would know how to lock the Haldex.
Edit: Just spoken to the old man and unless there is a way he can run without touching or changing anything with the car he will not be running the V70R. He is happy to find out if this is possible before pulling out though.
Regardless of if he runs or not mine will still be ran and he will bring it and enjoy the day.
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Man of Honour
Usually involves pulling the Haldex fuse or physically unplugging the electrical connector going into the diff.
It can most likely be disabled via diagnostics tools, Focus RS is Haldex and I know for certain on those you can. Not familiar enough with Volvo to say whether it's possible or not
Exactly what? Lambo uses a viscous coupling to transfer power to the front which is kinda like standard haldex in reverse.
Man of Honour
It is, but I don't think in operation it's too dissimilar to haldex
Found this in another forum posted by a tuner that specialises in vag cars. If true it all may be ok?
"You don't need a mechanically linked dyno for 4wd haldex, but you do need a speed as opposed to load controlled dyno.
A lot of dynos are load controlled in that they alter the braking force depending on load applied. A speed controlled dyno will aim for a set acceleration rate and vary the load on each axle to ensure they are turning at the same speed. In this case they dyno will be braking the rear axle at a much much lower rate than the front.
Dyno Dynamics/Developments is an example of a speed controlled dyno."
"You don't need a mechanically linked dyno for 4wd haldex, but you do need a speed as opposed to load controlled dyno.
A lot of dynos are load controlled in that they alter the braking force depending on load applied. A speed controlled dyno will aim for a set acceleration rate and vary the load on each axle to ensure they are turning at the same speed. In this case they dyno will be braking the rear axle at a much much lower rate than the front.
Dyno Dynamics/Developments is an example of a speed controlled dyno."
Associate
- Joined
- 20 Nov 2014
- Posts
- 372
I'm going to have to pull out of the dyno run, I cannot run my car with Haldex disabled as the rear diff with overheat and damage the Haldex clutches
I'll still come and watch tho 
Man of Honour
Read conflicting info about 4Matic cars, some say not to and other say it's fine. Any chance anyone knows?
I have messaged Dyno Developments for their input on all the cars listed - have sent them the link to this thread too.
Ok guys, I sent the below list of cars to Dyno Developments for comment:
Subaru WRX STi
Lamborghini Gallardo E Gear
Audi TTRS
Volvo V70R
Merc C43
Nissan Pulsar GTi-R
Mitsubishi GTO
The reply was "They should be fine, unsure about the Gallardo. They don't often go on a dyno".
So it's at this point, if you've paid and now don't want to risk running, ask me for a refund and I'll happily provide one.
Otherwise this is the current list with the reserves below it. If you are a runner and are yet to pay, and still wish to run, please get in touch to pay me by Thursday 10th October this week. After this all slots will be opened firstly to the reserves, then to beyond OcUK.
Runners (15 max):
Subaru WRX STi
Lamborghini Gallardo E Gear
Audi TTRS
Volvo V70R
Merc C43
Nissan Pulsar GTi-R
Mitsubishi GTO
The reply was "They should be fine, unsure about the Gallardo. They don't often go on a dyno".
So it's at this point, if you've paid and now don't want to risk running, ask me for a refund and I'll happily provide one.
Otherwise this is the current list with the reserves below it. If you are a runner and are yet to pay, and still wish to run, please get in touch to pay me by Thursday 10th October this week. After this all slots will be opened firstly to the reserves, then to beyond OcUK.
Runners (15 max):
- @ScoobyDoo69 - 2016 WRX STi
- @Micloi - Abarth/Saab **PAID**
- @kindai - Lambooooo **PAID**
- @Acme - Toyota Celsior
- @Warranty_V0id - TTRS **PAID**
- @smeaney y - V70R **PAID**
- @smeaney y - Merc 250d **PAID**
- @Maccy - 911 GTS Snip-Snip **PAID**
- @BennyC - BMW 335i **PAID**
- @Steedie - Merc C43
- @AlphaMale1 - Z4 35is
- @Chris1712 - Z4 35is **PAID**
- @zia - Nissa Pulsar GTi-R **PAID**
- @James oakey - Skoda Superb
- Now vacant
- @Vita - Honda Accord Euro-R
- @Hilly - Merc A45
- @Rems - Evo X
- @Thomas. PLease. - Jag F-Type
- @TomO - BMW M3
- @Blackhawk47 - BMW M2
- @Homer-Simpson - Merc C63S E63S
- @LizardKing - GTO
Thanks dude, I think I'm going to pull out, while I would like to run, TDR and now dyno developments responses to my car are frankly awful, do they not know their own equipment?
Ultimately it seems they are running a non-linked setup meaning the front rollers will have to be powered from the viscous coupling in my car transferring power due to the front wheels to keep them moving at the same rate, which aisde from the mechanical strain put on the car also means extra drivetrain losses on the reading. I would rather wait until we get a place with a Maha setup or at least a linked dyno.
I think a few other people here with AWD cars might also be in the same boat in thinking the same thing, which while I will still turn up to this event if it goes ahead, I wouldnt be against postponing it until RE performance get their dyno installed and at least then we wont have any of these issues on if the dyno can run the cars without causing issues.
Ultimately it seems they are running a non-linked setup meaning the front rollers will have to be powered from the viscous coupling in my car transferring power due to the front wheels to keep them moving at the same rate, which aisde from the mechanical strain put on the car also means extra drivetrain losses on the reading. I would rather wait until we get a place with a Maha setup or at least a linked dyno.
I think a few other people here with AWD cars might also be in the same boat in thinking the same thing, which while I will still turn up to this event if it goes ahead, I wouldnt be against postponing it until RE performance get their dyno installed and at least then we wont have any of these issues on if the dyno can run the cars without causing issues.
Man of Honour
Yeah I'm going to pull out of the dyno run, I'll still come as a spectator but speaking to a few posters on AMG forums and it seems non-linked dynos aren't great for AWD cars and can cause a lot of strain. Others have said it's fine but I'm not really up for chancing it. Sorry to drop out late but been trying to get a definitive answer and there just isn't one, even the dyno places response of "they should be fine", doesn't fill me with confidence
Associate
- Joined
- 20 Nov 2014
- Posts
- 372
Yeah I won't be running as well
Associate
- Joined
- 27 Apr 2018
- Posts
- 1,320
Unfortunately going to have to pull out aswell. Sorry guys
Don
Hoping to still make it, won't be running though (never was), but fancy a peak at a few of the cars 