Boys boys boys! I was there helping Bob run the dyno down at Dynotech, Dean knows me well and I've witnessed LOTS of cars on that dyno and I'm sorry but the wideband lambda is not wrong and it's certainly not worn out with regards to the fuelling measured.
With regards to this 4th gear nonsense hardly any dyno's do power-runs in 4th on a RR and I've been to several throughout the country. 3rd is the optimal gear and we even proved there was no difference by power-running Dean's car in 4th so that's rubbish as well.
Bob is hardly a cowboy, have you ever had a good read of the website, the business, the dyno? Obviously not!
www.hayesdynotech.co.uk - Just incase you missed it!
Sadly it seems the wonderful SEB2 chip quite obviously over-fuels because as soon as we put a Golf GTi on, running stock, the fuelling was spot on, albeit a little rich as that's the way VW have mapped them. Not to mention other stock cars we've had on there and all have been perfect!
Steve Sadler (who you probably haven't heard of) is one of the best live mappers in Kent and he uses Bob's dyno due to it's accuracy and I've watched him map everything from Skylines to Pug 205 GTi's and he always makes more power when the fuelling/timing is sorted and it's SPOT ON with accurate readings that coincide with when he's listening for DET.
Notice when some of the car's ran leanerthey made more power? Funny that! The SEB2 chip over-fuels and you obviously don't like it, fair enough but sorry the dyno isn't wrong. It's a 2008 450DS AWD and was setup professionally by Dyno Dynamics and Bob had LOTS of hours of training so he knows what he is talking about.
Sorry to upset you all and have a good rant but I don't think it's fair to ridicule Bob in this way!
I'm willing to keep battling on this one on behalf of Bob because it's out of order.
Oh and BEFORE you say you've never had a GT, I've actually owned 2 and they were both SEB2 and both weren't very good but that was my bad luck it seemed. Ask Dean!
So come on....let the debate begin!