Rhino1980 09JET Member 1,510 Member For: 15y 10m 11d Gender: Male Location: E. Maitland Posted 26/08/10 11:45 AM Author Share Posted 26/08/10 11:45 AM Thanks boys for your help, I'll ring Tone tomorrow and let you know what the answer is Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035329 Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 18y 3d Gender: Male Location: central coast Posted 26/08/10 11:54 AM Share Posted 26/08/10 11:54 AM On 26/08/2010 at 11:33 AM, possum said: why try and replicate the wheel spin that occurs on a regular dyno? hence the reason why hub dynos are usedmate I in no way are questioning the way they do their thing they are second to none , just thought at the end of the day they would be trying to give you a reading that relates to what your car puts down at the treads.all will be answered tomorrow . Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035334 Share on other sites More sharing options...
possum Donating Members 553 Member For: 15y 11m 8d Gender: Male Posted 26/08/10 12:04 PM Share Posted 26/08/10 12:04 PM (edited) I didnt think you were questioning tunehouses methods, I am trying to suggest that there will be no loss/difference between the wheels and at the hub considering the wheels are bolted directly to the hub Edited 26/08/10 12:05 PM by possum Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035338 Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 18y 3d Gender: Male Location: central coast Posted 26/08/10 12:11 PM Share Posted 26/08/10 12:11 PM yeh mate just a thought I'm often wrong, be interesting to see what the answer is though but my theory is a say 10 inch hub is going to turn the dyno more times per turn of the diff than an 18 inch wheel wich would need some correction on the readings . Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035339 Share on other sites More sharing options...
possum Donating Members 553 Member For: 15y 11m 8d Gender: Male Posted 26/08/10 12:27 PM Share Posted 26/08/10 12:27 PM Just because it is bigger doesn't mean it turns slower, one hub rotation is one wheel rotation no matter how big or small Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035341 Share on other sites More sharing options...
Rhino1980 09JET Member 1,510 Member For: 15y 10m 11d Gender: Male Location: E. Maitland Posted 27/08/10 11:45 PM Author Share Posted 27/08/10 11:45 PM Hello fellas, I didn't get a chance to call Tony on Friday because work was so hectic. I'll try get an answer Monday and post it up. Thanks again for your help. Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035657 Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 18y 3d Gender: Male Location: central coast Posted 28/08/10 03:54 AM Share Posted 28/08/10 03:54 AM On 26/08/2010 at 12:27 PM, possum said: Just because it is bigger doesn't mean it turns slower, one hub rotation is one wheel rotation no matter how big or smallif that's the case why do different wheel sizes affect speedo readings , because they effectivly change the final gear ratio? Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035693 Share on other sites More sharing options...
possum Donating Members 553 Member For: 15y 11m 8d Gender: Male Posted 28/08/10 04:08 AM Share Posted 28/08/10 04:08 AM no because they affect the rolling diameter meaning for one revolution it will travel further, not how many times it will turn in one revolution on the diff Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035695 Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 18y 11m 11d Gender: Male Location: Sydney NSW Posted 28/08/10 04:10 AM Share Posted 28/08/10 04:10 AM yeah different outside diameter tyres will alter the readout on roller dynos, no difference on hub dyno's obviously.While tuning mine we saw alsorts of variations when changing between 17s , 18s and 19s, plus wheel slip ect, smaller tyres read higher as did 3rd gear over 4th gear. Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035696 Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 18y 3d Gender: Male Location: central coast Posted 28/08/10 04:26 AM Share Posted 28/08/10 04:26 AM that's all I'm trying to say different sizes will give different readings Link to comment https://www.fordxr6turbo.com/forum/topic/70209-please-help-with-dyno-sheet-question/page/3/#findComment-1035698 Share on other sites More sharing options...
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