tephra

iTrader: (6)

Hi Guys,

As promised here are *some* of the results from my SST Dyno testing.

Bryan@GST already posted up some data, but I figured I would post up my findings regarding clutch pressure and slip rates when changing between Normal, Sport and SuperSport transmission modes:

Normal:


Sport:


SSport:



Summary:
SSport really cranks up the clutch pressures over Sport and Normal and this really eliminates clutch slip.

Car:
2008 EvoX MR
TBE
3port
Cosworth Filter
GTX3076R
98RON
All pulls where done in 4th gear on a Mainline Dyno.

Thanks to Cobb for sponsoring my time and thanks to RoadTrackRally for the dyno time

Supraboy1

I need graph reading 101 for dummies. Can you explain where the torque is or is that not a factor?

RazorLab

iTrader: (8)

Now you know why I wish I had, and really need, S-Sport on my RA.

Jossue

So what i got is that S-Sport is less abusive on your clutches? Am I right to get this conclusion form the grahps if so then i should be in S-Sport all the time(manual) as to not be red lining all the time?

Hirudin

Very interesting; thanks for posting these!

shawnburch

+1. Thats what Im getting from it also

sstevojr

iTrader: (7)

I drive in Manual/Sport at times, only cuz I don't have S-Sport
So how about that TCU.....

Beeble

S/Sport lets them slip less, yes that's correct.

but as you also know it makes the shifts more abrupt
If you can live with it, S/Sport will technically look after the clutches better... that's what i get out of this data aswell.

Personally i either drive in Normal/full auto / granma mode , or S/Sport full kill mode
I don't think Sport ever gets engaged, except to switch from one to the other.

korzunm

iTrader: (1)

Thanks for the info
I make my tune on alt map and will switch it on only in s-sport mode,
hope my clutch will live long life!

tephra

iTrader: (6)

Well I have been able to tune out the slip, but thats info for another day/week/thread

xhomm02

It´s GREAT!

Is there a chance to enable selecting S-Sport during driving?

I usually use paddle shifting, but I get really angry when I take off and then realize I did not change the shifting mode and have to stop to change it....

lowkey

iTrader: (5)

Well, the abrupt changes of S-Sport might also be harder on the transmission itself and the rest of the drive-train. So it's a trade-off of clutch linings wearing faster or transmission gears, bearings etc wearing out faster, IMO.

The__J__Factor

Good stuff man. Always one step closer to fully understanding our cars.

project_skyline

iTrader: (30)

Could the ECU be hacked and S-sport mode inserted cause that would be really amazing?

Jumperalex

Or best yet, I would love to tweak the NORMAL mode shift points to occur a little later and the SPORT mode shift points a little earlier. The two just seem a bit too far apart on the docile to agressive scale and I find myself either in NORMAL or MANUAL modes exclussively on the street.