You are not logged in.   Log in | Register

• My Lab
• Recent Changes
• Reports
• Tools
• Vespa Labs Q&A

Recent pages 2010 01 16 Dyno Run Articulated Exhaust Vespa Engine Temperatur... Unimig Panther 120 Mig ... Old All pagesMain pages Vespa Labs User:Internetscooter Scooters Dry Lake Racer 1st Run Results - 20... 2010 01 16 Dyno Run 2012+ Upgrades 2011 09 14 Dyno Run 2012 Updates 38mm Carb Articulated Exhaust Calculations CFD (Computational ... Custom Screen DLRA Rules Dyno Results Testin... Full Circle Long Str... Gear Ratio Calculati... KDX Top End Port Timing Porting Pics Race Tyres Stability Steering Damper Uprated Clutch Water Cooling Worb5 Malossi 24/63... Yamaha DT 175 Ignit...

Edit page New page Print page More Page last modified 09:40, 17 Jan 2010 by internetscooter 4 Page Notifications Off User:Internetscooter > Scooters > Dry Lake Racer > 2010 01 16 Dyno Run 2010 01 16 Dyno Run From $1 Table of contents 1. Standard Vespa PX vs Our Vespa KDX Conversion Here are the results for the dyno run on the 16th Jan 2010. As we went back to the same dyno we used a few years back, we had an original standard Vespa 200cc dyno result to compare to (the little squiggle at the bottom of the chart). The results are from a true rear wheel power dyno (not a machine that measures rear wheel power and adjusts that value up to guess what the crank power is). The results show that we need to have a wide tyre to lower gearing in addition to the 24/63 primary drive. Our peak power is 25.5 hp  at 7500 rpm which is 142 km/hr with our current gearing. With a wide tyre we'd bump this up to 149 km/hr. At ~8,000 rpm (160 km/hr with a wide tyre) we still have around 22 hp. The should be enough power but it would be nice to shift to peak power up 500 rpm just to be sure. Standard Vespa PX vs Our Vespa KDX Conversion Tags: (Edit tags) No tags Attach file or image Files (4) File Size Date Attached by     20100116_vespa_kdx_sml.jpg Vespa KDX Dyno 62.55 kB 09:22, 17 Jan 2010 internetscooter Actions Attach new version Edit description Move/rename Delete   20100116_vespa_kdx_vs_standard.jpg Raw Dyno Data - Standard Vespa PX vs Vespa KDX 488.28 kB 17:43, 16 Jan 2010 internetscooter Actions Attach new version Edit description Move/rename Delete   20100116_vespa_kdx_vs_standard_annotated.jpg Dyno Results with speed predicitons 890.5 kB 23:16, 16 Jan 2010 internetscooter Actions Attach new version Edit description Move/rename Delete   20100116_vespa_kdx_vs_standard_annotated_sml.jpg Vespa Standard Vs Vespa KDX Annotated Small 75.5 kB 09:22, 17 Jan 2010 internetscooter Actions Attach new version Edit description Move/rename Delete Images 4 Vespa KDX Dyno20100116_vespa_kdx_sml.jpg Raw Dyno Data - Standard Vespa PX vs Vespa KDX20100116_vespa_kdx_vs_standard.jpg Dyno Results with speed predicitons20100116_vespa_kdx_vs_standard_annotated.jpg Vespa Standard Vs Vespa KDX Annotated Small20100116_vespa_kdx_vs_standard_annotated_sml.jpg     Comments (0) You must login to post a comment.

Powered by MindTouch Core

Disclaimer: Vespa Labs contains information that is VERY likely to wreck your scooter and possibly yourself both intentionally (i.e. gaining more peformance while sacrificing reliability + safety) and unintentionally (i.e. misleading or incorrect information). Vespa Labs is only a wiki and intended as a dumping ground for information and not as a properly reviewed source. The same disclaimers that wikipedia.org use apply to Vespa Labs. The short version is use information at your own risk, both information on the main wiki and in the user areas are intended to be used only as "thought provoking" for someone that knows what they are doing. If you try to implement a "thought" Vespa Labs is not reponsible and if something goes wrong we hope that you live and update the offending information with corrections to warn others.

Vespa Labs is an international site and therefore may contain information that is not road legal in some countries/states and may also invalidate insurance policies. Treat all information as experimental and for "race use only" (i.e. not for road use - even if it is implied or explicitly stated). Refer to and adhere to your local road and legal rules, as well as the manufacturers recommendations.