Yep, using v power nitro plus from new.

It won't be changing for me as I'm not using the kick down function. This all happens in manual when accelerating full throttle (not kick down) from low rpms. I'm thinking 20-30mph in 3rd then floor it - this way I get acceleration all the way through 3rd gear and don't change to 4th until redline, where I change manually up to 4th probably just before it would do so automatically...

Agree with you as we'll though that the engine will also still probably loosen to 5k miles etc.

Is that giving you an 'Indicated' 70 mph in 3rd flat out, before you do the change to 4th?

I'm not sure, I would need to check when I next go out.

Is that what yours shows?

I have timed several Twinchargers in different situations for Sprinting and Hillclimbing & 1/4 miles to know what gears a RPM to use.

Thats what a standard vRS usually does in manual.

Why i do not do manual upshifts,

i believe the DSG does them quicker on a Twincharger, and timing confirms that.

(Both with Traction Control off or on, i prefer OFF.)

Not tried V Power Nitro, and i think i will keep giving it a swerve.

Nothing to do with the 5 Pence a litre less for Momentum,

just that i trust Tesco more to own up, rather than Shell, or some Private Station Owner if the wrong fuel comes out the filling station pump.

george

Not sure I understand George. If I manually change I am still using the dsg? How is auto any different ( and hence quicker?) surely the only difference is the point in the revs at which the gear change takes place?

Just try it and see.

If no quicker then there will be no difference and you will know what you are doing is fine.

In 'D' its 7speed/gears. But lets forget 1st gear because that is so low.

In 'S' it is 6 Speed on almost all Twinchargers, (some are 7Speed in 'S'.)

'S' taking it all the way to the Redline in each gear is much the same as using manual and redlneing in each gear on Up shifts.

I Overtake on the road in 'D' not 'S' others might do different.

I use 'S' to decelerate from 'D' before changing back to'D' to accelerate.

That drops 2 or sometimes 3 gears and drops it to give the 2000-4500 rpm & Maximum Torque.

I also go across to manual sometimes depending on the type of corners or road for dropping gear manually.

I sometimes do a Double KIckdown, to get the 2000-4500 RPM i want.

*Supercharger & Turbo charger from 2400-3500 rpm then Turbo charger and plenty boost to 5000 rpm or so.*

(140 mph might be done at maximum 6200 rpm,178 bhp/180 PS,

but you are talking about maximum acceleration here not Top Speed.)

Whatever works for you,

i through trying out different combinations do what works for me and gives what i think is the Power Delivery that suits me,

& gives least lack of Traction.

george

This is about standing starts, and not much to do with the thread, but hey ho.

Just seen this thread.I've got the later engine and,yes,there is a distinct kick of increased power at the top end of the rev range,I've stated this on here before.So it's normal.Can't remember at what revs,been in the US for 6 weeks now and so haven't driven it.

That's all I've got to say.

Vtec kicked in yooooooo

There is definitely an extra surge of power around 5000rpm in mine (cave).

What George is saying about shifts being quicker in D than with the paddles makes no sense to me. The car will shift cogs just as quick when you flick the paddle IMO. The only difference is the driver choosing When to shift as opposed to the dsg software making the call.

The gears are set at exactly the same ratio whether in S or D. When it's in S it's only a 6- speed box because the dsg is programmed not to enter 7 because it doesn't need too. The ratios are unchanged. Pick any rpm you like - the speed will be the same in D3 as S3, D4 same as S4 etc etc... Only difference is the gear change points really.

All just my thoughts and opinion tho!

In manual mode, until you pass 4000 revs the DSG has the gear BELOW preselected so a change up is slow. Above 4000 rpm, the gear above is selected and a change up is very quick indeed.

Tried booting my CTHE tonight. Power seems very linear through 5000 rpm.

Rachel

Edited 10 May, 201313 yr by RachelNorfolk

Rachael,

Where has that information come from if you don't mind me asking?

It doesn't make sense. Your in first gear, in any mode the car will preselected 2nd whether your below 4000 rpm or above surely. It will not select reverse as a default below 4000 rpm. Once in 2nd it is very unlikely to select 1st gear as this is such a short gear used for a very short period of time, this would suggest 3rd gear is therefore selected regardless of rpm....etc. etc.

So I'm not quite getting the logic on your post? Also, if in D the car shifts up to higher gears way before 4000rpm and would also therefore suggest it always preselects the higher gear?

I was always told that manual gave the most performance from this engine?

Thanks,

Mark

Yeah, obviously it's not going to present R when in 1st but just try it in 3, 4, 5 etc. try changing up below and above 4000 rpm and notice the significant difference...

Not sure what the fabia vrs is like but my twin charger mk5 golf 170 has VVT which kicks in at 5k rpm! Noticeable engine note change! Dropped a few extra valves in at 5k

Help with emissions and mpg

'Furbytom',

does your gearbox not hold the gear longer in 'S' than it does in 'D' under full aceleration

and Redline it before shifting up gear.?

(might be faster or actually just feel faster accelerating, best to do timing and see which it actually is)

Being in 'S' and using the Paddles is not something i personally do,

i really only drop to 'S' to decelerate,

drop 2 or 3 gears, then back to 'D'. So as able to go straight across to 'M' to do single down shifts if wanting to.

??

If you are going along at say a steady 70 mph @ 2500 rpm in 'D7', and you drop the Shifter back to 'S' without lifting off the throttle, does the gear not drop to 'S5'

or 'S4' ?

(& the RPM change from the 2500rpm to up around 5000 rpm while still doing 70 mph)

http://drivingspirit...abia-vrs-review

Review of Mk7 Golf GT TSI 1.4 ACT

http://drivingspirit...tsi-2013-review

As an example between being in D or S.

2000 rpm & 60 mph in 'D7' ,

drop the shifter back to 'S' and its 4000 rpm in 'S4'

'Furbytom',

does your gearbox not hold the gear longer in 'S' than it does in 'D' under full aceleration

and Redline it before shifting up gear.?

(might be faster or actually just feel faster accelerating, best to do timing and see which it actually is)

Being in 'S' and using the Paddles is not something i personally do,

i really only drop to 'S' to decelerate,

drop 2 or 3 gears, then back to 'D'. So as able to go straight across to 'M' to do single down shifts if wanting to.

??

If you are going along at say a steady 70 mph @ 2500 rpm in 'D7', and you drop the Shifter back to 'S' without lifting off the throttle, does the gear not drop to 'S5'

or 'S4' ?

(& the RPM change from the 2500rpm to up around 5000 rpm while still doing 70 mph)

http://drivingspirit...abia-vrs-review

Review of Mk7 Golf GT TSI 1.4 ACT

http://drivingspirit...tsi-2013-review

As an example between being in D or S.

2000 rpm & 60 mph in 'D7' ,

drop the shifter back to 'S' and its 4000 rpm in 'S4'

Hi George,

Yes my car does hang on to each gear to the redline when accelerating hard in "S" mode. As a consequence of that I never use it. Use D for normal driving and across to M with the paddles when I want to have fun.

No idea if the car is quicker or not in manual mode but that's not why I choose to use it. I don't think tho that the actual 'shift times' are any slower in manual - why would they be? (Obviously human reaction time can be slower but I am talking about how fast the car swaps cogs when requested)

Agreed the car changes down a gear or two when moving from D into S and the rpm rises as a result. It's programmed to do this for a more sporty drive etc. Doesnt mean the gear ratios change though. I would imagine if you checked your speed at 4000rpm in S3 and 4000rpm in D4 they will be the same?

The gears on the car never alter - only the way the car chooses to select them in S or D.

Worth having a look if you are driving today.

In 'D' and just driving off normally, you will probably be in 'D4' by 15-20 mph, and the DSG will shift up to 'D5' or just over @ 2000 rpm,

& be at 1500 rpm in 'D5' just above 20-25 mph.

I doubt if you are in 'D4' driving along at 20mph ish and 2000 rpm, that you can shift down to 'S3' it goes to 'S2'.

(D5 might go to S3, and obviously you can go S1 to S2 to S3 etc.)

If you are in 'D' and give it more throttle and accelerate, it will go to 'D4' and shift up at 4000 rpm to 'D5'.

No way of driving at a constant throttle/constant speed in 'D4' and be at 4000 rpm because the gear box will shift up as you have no lock in 'D'.

george

Agreed the car changes down a gear or two when moving from D into S and the rpm rises as a result. It's programmed to do this for a more sporty drive etc. Doesnt mean the gear ratios change though. I would imagine if you checked your speed at 4000rpm in S3 and 4000rpm in D4 they will be the same?

The gears on the car never alter - only the way the car chooses to select them in S or D.

Woops sorry typo -

Meant speed will be the same in S4 and D4 at 4000rpm.....!

My simple take on it is that there are gears 1 to 7 and two patterns of shifting S or D. If you are in S3 or D3 it doesn't matter you are still in third gear.

If you re in D7 for example and shift into S mode the car may go into "S5". all that means is at it has dropped from 7th to 5th and is now using the more aggressive pre-programmed shift pattern.

I've noticed an occasional difference that if you let the box changed when it wants to, there's a "slurring" of power (seems to drop off just before and just after the change) whereas in Manual, it doesn't seem to - but that could well be placebo.

At full throttle I do not notice and power surge at all, silky smooth through all gears.

However, at say 50% throttle in manual, say 3rd or 4th gear (it even works in S) when it gets to 5,5k rpm it has a very noticeable kick. This is caused by the turbo boost peaking at that RPM and ECU has to either lower the boost (which having seen boost maps it doesn't do) or increase fuelling to keep the AFR correct => kick can be feeled. This can only be feeled at less than 100% load.

I just got WiFi OBD2 dongle and will be logging the engine using Palmerperformance (DashCommand on iPhone) software. I will be able to tell (hopefully) what is going on at different loads (throttle positions) at different revs.

Definite power surge at 5k on my CTHE vrs. This was not present on my last CAVE vrs.

cant say I've noticed it in my CTHE, and i've done 50k in the CAVE engine, and 3k now in the CTHE.... it definatly has a different map, and different characteristic (specifically types of throttle response) but I cant say a surge at 5k....

Mine is really quite noticeable. Quite odd.

indeed!