Yarco Posted February 3, 2016 Author Share Posted February 3, 2016 The correction factor is, I believe, on the dyno sheet. 102.4%.. So knock 2.4% off your power figure. Personally I think rolling roads, unless hub dynos, are for fun only, as is claiming 455 BHP on stock twins... When I bought my GTS-t Skyline it had at least three different rolling road print outs, different dates at different rolling roads. All were 480 plus BHP. For fun I stuck it on my pal's engine dyno as a another RB engine had just come off and it was all set up. Real BHP? 368. Ambient temperature was 32.6° that day. I think in normal conditions and at 1.2bar I would of got much more. TBH everyone has a different opinion on dyno's, personally I think if non hub dynos are so inaccurate why would the entire motoring world still use them? They're ok for up to 500hp cars imo. Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 3, 2016 Author Share Posted February 3, 2016 (edited) The correction factor is, I believe, on the dyno sheet. 102.4%.. So knock 2.4% off your power figure. Personally I think rolling roads, unless hub dynos, are for fun only, as is claiming 455 BHP on stock twins... FYI there is a guy on here who got 540hp on stock hybrid twins (same as mine). E85 and some other wizardry I believe. Edited February 3, 2016 by Yarco (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 3, 2016 Share Posted February 3, 2016 There must have been considerable "other wizardry" (IMHO) Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 3, 2016 Author Share Posted February 3, 2016 There must have been considerable "other wizardry" (IMHO) E85, ECU, cams and injectors and a decent map from what I remember. The guy's profile had "highest hybrid power figure in UK" or something like that. I agree though 540hp is very high for hybrids. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 3, 2016 Share Posted February 3, 2016 Hub dyno's read almost FWHP from what I've seen though so as much as I would say they are consistent, the power claims that the owners are left with are inaccurate IMO. I'd love to see a back to back run from somewhere like SRR and TDI with the same car to see what the actual % difference was between the hub and the wheels (none of this FW calculation nonsense). Quote Link to comment Share on other sites More sharing options...
Luxluc Posted February 3, 2016 Share Posted February 3, 2016 Check Deans 6466 turbo. Rolling dyno vs hub dyno. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 3, 2016 Share Posted February 3, 2016 Check Deans 6466 turbo. Rolling dyno vs hub dyno. Any links? Was it SRR? I don't think I've ever seen two RR Dyno's read the same so I always use SRR as the yard stick as it was a popular choice. Quote Link to comment Share on other sites More sharing options...
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