timmy2take

iTrader: (7)

I was under the impression a Type R is 70% rwd, but apparently not?

Anyone know for sure?

**jay**

iTrader: (1)

Yeh with diff set too open, closed diff is 50/50

timmy2take

iTrader: (7)

Some old school member on here said last night it was 55/45, had me wondering as its so much easier to get the **** out than my other 4 door gc8s I've had in the past.

banny sti

iTrader: (68)

65:35 R:F

TonyBurns

iTrader: (3)

Its easier because of the torque distribution, remember torque is a twisting force, you put more to the rear and it will be easier to get the tail out.

DannyBoy007

iTrader: (7)

I also thought it was 65-35

ronjeramy

iTrader: (1)

63-37 being pedantic

TonyBurns

iTrader: (3)

So the "power" (as in bhp) will be evenly distributed (thats a 50:50 F/R split), the torque, which is what the DCCD controls, (settings dependent) goes from (Lock) 50:50 f/r to (Open) 36:64 f/r.

HTH

scoobiepaul

So am I right in assuming that you should use a locked diff (newage spec c) for a drag/ best launch? Thank Paul.

banny sti

iTrader: (68)

correct and soon as off the line, roll back to fully open

Jaysz

TonyBurns

iTrader: (3)

Yes you can BUT tbh with you, auto will do a better job as it reacts far quicker than any human can.

lcs_turbo

Do you mean that, regardless of how the DCCD is set, the BHP will be 50/50 front to rear?

TonyBurns

iTrader: (3)

The BHP will always be 50/50 (evenly distributed) its the torque that changes with the DCCD settings.

lcs_turbo

BHP is a calculated value based on torque and engine speed, so if torque is distributed differently surely BHP is as well?

TonyBurns

iTrader: (3)

No, the torque always = 100, so starts at 50:50 and goes to 36:64, then as an example, an STI, have front and rear lsd's, this means they can split that torque again (say 50:50 as an example) across the axis if it gets slip. Theoretically that means you can in that configuration, have 50% of your torque going through just 1 wheel. Power (BHP) is disributed by drive shafts, these will always provide the same power no matter what, unless you break one

scoobiepaul

Thanks for reply, next year will bring me a 12.999sec run I hope.

scoobiepaul

I am a bit of of a drag strip novice, when I tried in auto I kept getting wheel spin? also what revs is it best to change up 6000rpm? Thanks in advance for any tips.

domino46

The hatchback is where it starts to get tricky with the dccd as its got quite a few setting compared to the early ones and takes some getting used to ,, manual , auto , auto front , auto rear ,, plus you have the Vehicle dynamic controls aswell as its got three settings , on , off , and just traction control off leaving the dynamic stuff still on , it's still 65-35 but seems a bit harder (safer) to get the back out compared to the other dccd Scoobs iv owned but I'm still getting used to the extra settings and what it makes the car do lol

banny sti

iTrader: (68)

Hawkeye onwards the split changed to 59:41

neil-h

I'm fairly certain that's wrong, first torque is also distributed by the driveshafts (otherwise how would it reach the wheels). Secondly, ss has already been stated BHP is a function of torque. So if 50% of the available torque is going to one wheel then a 50% of the available bhp is going with it.

TonyBurns

iTrader: (3)

Torque iss distributed by the differential to the driveshaft, it does not mean you will always have torque going to a wheel (hence you use limited slip differentials for this), but the wheels will always have power to them (even if there is no torque there due to slip).

neil-h

But torque is the applied turning force on the wheel. If there's no torque then the wheel doesn't turn (although that's not to say a wheel has to turn if torque is applied).