quick xr6 Suspended 229 Member For: 17y 2m 21d Gender: Male Location: sydney Posted 31/08/08 08:05 AM Share Posted 31/08/08 08:05 AM qik question when you get a custom tune or a power run why do some tuners pump the tyres up eg from 30psi to 40psi what does it do. Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/ Share on other sites More sharing options...
xr6_2001 Member 81 Member For: 18y 15d Gender: Male Location: Radelaide Posted 31/08/08 08:07 AM Share Posted 31/08/08 08:07 AM I'm no expert but at a guess, I'd say 2 reason, first reason is less friction more real time indication of power, and second sits on dyno better Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726195 Share on other sites More sharing options...
quick xr6 Suspended 229 Member For: 17y 2m 21d Gender: Male Location: sydney Posted 31/08/08 08:24 AM Author Share Posted 31/08/08 08:24 AM thank you Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726206 Share on other sites More sharing options...
Kimberley Scott www.australianflag.org.au Donating Members 6,763 Member For: 19y 9m 20d Gender: Male Location: Brisbane Posted 31/08/08 08:50 AM Share Posted 31/08/08 08:50 AM Can be run at normal pressure though, if you have something like nitrogen in your tyres.Scotty Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726226 Share on other sites More sharing options...
Adam Here since the start... Lifetime Members 10,282 Member For: 22y 11d Gender: Male Location: Victoria Posted 31/08/08 09:11 AM Share Posted 31/08/08 09:11 AM I think it's also done to keep it as consistent as possible between cars aswell.I can't imagine it would make that much difference... Could be wrong though. Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726235 Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 18y 9d Gender: Male Location: central coast Posted 31/08/08 09:37 AM Share Posted 31/08/08 09:37 AM hmmm never seen it done ,had dyno runs at a couple of shops car usually goes on dyno the same way I drove it there ,which is a good indicater of what yu've got I think , start changing things before a dyno run and it's not really what it;s goin to be like on the road Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726249 Share on other sites More sharing options...
RHR BOOST Moderating Team 5,698 Member For: 21y 8m 2d Gender: Male Location: Southern Highlands NSW Posted 31/08/08 11:48 PM Share Posted 31/08/08 11:48 PM Would it help it grip?? Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726445 Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 18y 3m Gender: Male Location: SW Sydney Posted 31/08/08 11:52 PM Share Posted 31/08/08 11:52 PM I know on a dyno, the harder your tyres the better, as the resistance of soft rubber can hurt the final figure, and also lead to slip when they get hot, so 40psi would make them a bit more repeatable - consistency as Adam said Link to comment https://www.fordxr6turbo.com/forum/topic/49238-dyno-tune/#findComment-726446 Share on other sites More sharing options...
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