OcUK RR Day 12 Official Pictures & Dyno Graphs!

Kind of wish I ran now but seeing as I've only had a cat-back fitted since I doubt that would improve upoon 399hp-388lb/ft.
 
SoliD said:
Think the issue with this one was due to the BMW systems going nooooooooooooo can't do 170mph at the rear wheels whilst the fronts are stationary!
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The computer went nuts after that run. Steering lock is on! Traction doesn't work! Wowa, no ABS!

Recovered after a bit.
 
MacRS4 said:
Damm nice car. The colour is a lot better in real life than the 'idea' of it is, if that makes sense. The only thing I've ever struggled about with Porkers is their interiors.

Love 911s, always have. Can't drive them for toffee. But then again I can't drive the current car either (without screaming and clenching), so hey ho.

Not sure who it was who came on a passenger ride after I did the 'road, but I loved the 'computer has gone crazy! Not sure if traction works!'... It didn't, and he looked at me like I knew what I was doing. Comedy.

Computer: STEERING LOCK IS ON! STEERING LOCK! NO TRACTION! YOU"RE GOING TO DIE!

I didn't. Although it was a bit squirmy. Got my chicken sandwich though.
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Ha, that was me, the back end did seem to slide out a bit and it wasn't happy for the first few miles. Thanks for the ride!

panthro said:
Thats a nice result for Peerzy's Boxster S. Not loving MacRS4's result though :P
Who's was the Merc SL?
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They are apparently 290bhp standard, 295bhp when it got the facelift about 8 months after mine was built so I'm very happy with 298bhp. Makes me feel a little better about getting a newer 987 Boxster S and not going for a 996 911 as the 996 made 300bhp~ yesterday so nothing really in it.

Massive thanks to Gibbo for organising it, great turnout and everything ran perfectly. Nice to chat to a few of you who I hadn't before (Jez, Will, Tom, Gibbo etc...) and nice to know we recruited a new member in the guy with the Scooby (who I got a passenger ride off of with Gibbo but had no idea he wasn't a member - that launch control was horrifically quick).

I've gotta say though the stand out car for me was Gibbo's 911, I don't think I've ever been so impressed with a car as much as I was with his - got me looking on PH now and looking to sell a kidney for one!

Anyone get any pictures of my car?

I know it would be a bit pants but maybe name tags or something - I often find myself wanting to find and talk to members (DRZ for one) and having to kinda look round and guess and see who looks like they own what car etc.....

I'd certainly have spoken to a few more people if I could instantly have known as that's such and such - especially considering I'm pretty new to these meets and I was having to introduce myself to most people (Howard, Princy etc aside).
 
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ecksmen said:
License plate details are in every print out. Considering you remove them from photos is this wise?

(I've always wondered why you bother to remove them anyway).

G18 WTF - quite like this.
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&

Scubascorpion said:
I've never understood why people are so anal about having their reg on photos removed. OMG someone might steal it.. err they have to locate it first..

It's on display to EVERYONE that passes the thing in daily life anyway, if they wanted to clone it/steal it they'll do that anyway AND they know where it's parked.
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Some people dislike their plates being shown on the car, for whatever reason, this is why I remove them. It also means it's 'just' a car rather than a specific reg one. Doesn't make much extra work.

When I used to hose the RR graphs I did actually remove the reg from those as well.
 
Peerzy said:
I've gotta say though the stand out car for me was Gibbo's 911, I don't think I've ever been so impressed with a car as much as I was with his - got me looking on PH now and looking to sell a kidney for one!
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I thought you were buying that Maserati? Just pick a bloody car will you? :p
 
Peerzy said:
They are apparently 290bhp standard, 295bhp when it got the facelift about 8 months after mine was built so I'm very happy with 298bhp. Makes me feel a little better about getting a newer 987 Boxster S and not going for a 996 911 as the 996 made 300bhp~ yesterday so nothing really in it.
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Think that is partially down to the tip box not giving a completely accurate reading, If you look at our drag readings they are exactly the same, which we know would not be true between a manual and Auto, so I suspect the 996 actually has a bit more power than that recorded, but at the wheel power is nigh on the same, only problem is you got a poor mans Porsche :D

Also if possible could I get the pdf of the graph for my run sent to my trust email please.
 
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SoliD said:
Think that is partially down to the tip box not giving a completely accurate reading, If you look at our drag readings they are exactly the same, which we know would not be true between a manual and Auto, so I suspect the 996 actually has a bit more power than that recorded, but at the wheel power is nigh on the same, only problem is you got a poor mans Porsche :D

Also if possible could I get the pdf of the graph for my run sent to my trust email please.
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You know?
You do realise the coast down drag figure in done in Neutral for all cars don't you?
The toque converter is not engaged during the drag reading figure, hence I see no reason what so ever that the drag figures should be any different from the other porsches run that are of similar design
 
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And this is my petrol guage after the 155 mile round trip and the dyno test :)

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Scubascorpion said:
You know?
You do realise the coast down drag figure in done in Neutral for all cars don't you?
The toque converter is not engaged during the drag reading figure, hence I see no reason what so ever that the drag figures should be any different from the other porsches run that are of similar design
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If the coast down is conducted in neutral then surely the increased drivetrain resistances found under load when using a traditional torque converter automatic over a manual are not represented, and as such the calculated flywheel figure is too low?

If Peerzy's Boxster produces 295.0 HP at the fly and 196.9 HP at the wheels (98.1 HP / 33.25% loss) with a manual transmission, then I think SoliD's Porsche producing 297.1 HP at the fly and 199.0 HP at the wheels (98.1 HP / 33.0% loss) with an automatic transmission is suspicious, as it's saying that the automatic drivetrain in the 911 is more efficient than the manual drivetrain in the Boxster!

I think this is what SoliD is trying to say.
 
MacRS4 said:
The computer went nuts after that run. Steering lock is on! Traction doesn't work! Wowa, no ABS!

Recovered after a bit.
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Mac,

If you still have issues I can clear all your faults via The INPA stuff I am now offering as a sideline, it's really easy to do and I its just fault clearing and you drive to me - it's free :)

I had 11 seperate fault codes after my RR :p
 
Without wanting to sound like I'm trying to make a point (as I'm just genuinely interested in working out what's going on - I'd have dynod the dag of death if I was sure I'd get a correct figure), take a read of this document:

http://195.135.167.149/cps/rde/xbcr/SID-30826302-57979A00/maha_internet/PruefanleitungLPS_AUDIe.PDF

Audi and Maha worked together and came to this conclusion:

Audi and Maha said:
Due to their higher load-dependent losses inside the drive train the
measurement values of vehicles with automatic transmission (incl. Multitronic)
have to be corrected as follows:
Tiptronic: + 3.5 %
Multitronic: + 4.5 %
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also...
Audi and Maha said:
2.) Load-Dependent Losses inside Gear
The difference of losses between unloaded and loaded condition of standard singleaxle
drives is approx. 2 %. Systems which supply energy to the drive train during
drag power measurement (e. g. hydraulic pump drive for vehicles with automatic
transmission) have to be regarded separately.
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Audi Tiptronic is a traditional torque converter automatic like SoliD's Porsche tiptronic. Multitronic is a CVT hence an even higher difference. I'd also say that the empirical evidence that every torque converter automatic car I've seen run on the PS dyno from the OcUK crew has made less power than expected. There's definitely something going on.
 
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