Stephen88 Posted February 5, 2020 Share Posted February 5, 2020 I know it is suppose to be 280 but they all did more that but how much more? I was hoping for 320 with an unknown exhaust. The whistle sounded like it has a boost leak. Here is the vid some thoughts would be appreciated. https://www.instagram.com/p/B8BZimnlQOf/?igshid=junc076stryw Quote Link to comment Share on other sites More sharing options...
Style Posted February 5, 2020 Share Posted February 5, 2020 Give or take 2 or 3hp it was 320hp out of the factory. A look at the dyno graph would be a good place to start. Was there a boost gauge or anything on the car at the time of the dyno pull? Quote Link to comment Share on other sites More sharing options...
Stephen88 Posted February 5, 2020 Author Share Posted February 5, 2020 (edited) nope, no boost gauge I can't seem to turn it 90... is turned in windows but not after uploading Edited February 5, 2020 by Stephen88 (see edit history) Quote Link to comment Share on other sites More sharing options...
tayr Posted February 5, 2020 Share Posted February 5, 2020 (edited) Mine ran 348bhp as stock which i guess is 296whp (HKS backbox thats it) at Surrey Rolling Road but mine is Pre VVTi Not sure if that makes a difference Edited February 5, 2020 by tayr (see edit history) Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 5, 2020 Share Posted February 5, 2020 Hopefully here's your graph Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 5, 2020 Share Posted February 5, 2020 Mine ran 348bhp as stock which i guess is 296whp (HKS backbox thats it) at Surrey Rolling Road but mine is Pre VVTi Not sure if that makes a difference Don't see how its got that if its virtually stock to be honest Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 5, 2020 Share Posted February 5, 2020 I know it is suppose to be 280 but they all did more that but how much more? I was hoping for 320 with an unknown exhaust. The whistle sounded like it has a boost leak. Here is the vid some thoughts would be appreciated. https://www.instagram.com/p/B8BZimnlQOf/?igshid=junc076stryw[/url] This is probably what its got, how many miles has it done ? Quote Link to comment Share on other sites More sharing options...
tayr Posted February 5, 2020 Share Posted February 5, 2020 Don't see how its got that if its virtually stock to be honest They did 3 Runs, and they were all similar. They thought it may be aftermarket ECU but i checked it and it's stock so i'm not sure either. I was surprised. Quote Link to comment Share on other sites More sharing options...
Stephen88 Posted February 5, 2020 Author Share Posted February 5, 2020 Hopefully here's your graph Thanks! Quote Link to comment Share on other sites More sharing options...
Stephen88 Posted February 5, 2020 Author Share Posted February 5, 2020 They did 3 Runs, and they were all similar. They thought it may be aftermarket ECU but i checked it and it's stock so i'm not sure either. I was surprised.[ATTACH=CONFIG]234567[/ATTACH] Interesting graph it seems yr 2nd turbo kicked in just before 4000 rpm Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted February 5, 2020 Share Posted February 5, 2020 (edited) There is only one way to know the true power and that is to pull the engine and put it on an engine dyno. If you want an accurate figure to the wheels get a power run on a hub dyno. Torque Developments International PLC in Thurrock Trade Park in Essex or Abbey MotorSport Ltd in Oxted. Dyno Dynamics are inertia dyno's and work on the principle of the acceleration of a known mass over time. Their rollers are the known mass. Weighing in at over 1100 kgs +. The car gets strapped down to the machine and the dyno collects it's data. It is able to calculate horsepower by measuring the acceleration (in RPM) of the rollers. This is why gearing can affect the dyno results which leads to over reading. Now that the dyno has recorded the horsepower curve, it can take the integral of that curve and get the torque curve. Since the dyno’s power calculations are based on the acceleration of mass over time in regards to RPM gearing is very important. A vehicle with a lower gear ratio can accelerate the mass to a higher speed using less engine RPM so it will show a higher horsepower number than a car with a higher gear ratio. If a car is able to accelerate the dyno’s rollers from 200rpm (roller speed) to 300rpm (roller speed) in 1500rpm (engine speed) then the dyno is going to record more power than a car that did that in 2000rpm (engine speed). Edited February 5, 2020 by Frank Bullitt Info added. (see edit history) Quote Link to comment Share on other sites More sharing options...
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