C'est en anglais :
1a. UK RECORD 208.10 MPH IN A 928
Posted by: "Brett" managingdirector@pchealthcare.co.uk brett928s2
Sun Aug 15, 2010 6:42 am (PDT)
Hi All
Well I did it…. 208.10 MPH
Over 208 mph….which I figure makes a UK RECORD for 928`s and also is faster than any model of Porsche as it leaves the factory.
Figures are as follows… although some have been deleted due to location and information I am not willing to share on the Internet lol.
Any local 928 or Porsche owner are welcome to come see the proof.
TYRE PRESSURES – 40 FRONT 46 REARS
TEMPERATURE - 52 FAHRENHEIT
ENGINE REVS 6865
WHEEL SPEED 0
BATTERY VOLT 12.3
LATERAL G -0.04
ACCEL G 0.21
GPS_DATA 0.000
GPS_SATELLITES 9.OO
GPS HEADING ****(DELETED)
GPS_MPH 208.10
GPS_Gs 0.18
Nitrous pressure – Start - 975
Finish - 680
Amount of Nitrous used, just under 700 hp, hard to be precise but an educated guess is 680 ish.
Damage to my car…lost both wiper blades at around 190 mph and now breathing oil a little more heavily from offside (camcover gasket I suspect) , also lost a bolt from engine undertray when grounded during the final run and twisted the tray a little, but still driving daily to work.
Impressions of the run…..I activated the Nitrous at around 125 mph and it started really pulling hard and just kept going….at around 180 plus the car started going "light" (only way I can explain it…a bit like aquaplaning) it got lighter and lighter although still accelerating and when I saw 207 on my GPS speedo , I backed it off and that's when it got REALLY light it was like travelling on oil not funny at all , the back end was worse than the front by far
It seemed to "drop" back onto the surface at around 185 ish (decelerating) and I had grip again which was a huge relief.
If I ever do it again I need to do something about pushing the back end in particular down onto the surface.
Any advice on rear aerodynamics welcome….
Was it as easy as I expected….no it was MUCH harder…from around 180 to 190 although the Nitrous was pushing me at the same rate I was not accelerating as fast and seemed to be slowing although still accelerating ….aerodynamics I guess.
Was it worth it? YES
Future aims? Not decided yet but possibly 220 mph.
All the best Brett
