Scott Posted March 27, 2011 Share Posted March 27, 2011 Was that as fast as it would possibly go? Wonder how many mph would be lost on the road due to wind resistance and other factors. You really cheer me up Josh. You think there is no resistance in a rolling road? Quote Link to comment Share on other sites More sharing options...
supraturbochris Posted March 27, 2011 Share Posted March 27, 2011 well if it helps, i had 178mph on my own private test runway but ran out of road lol Quote Link to comment Share on other sites More sharing options...
Josh Posted March 27, 2011 Share Posted March 27, 2011 You really cheer me up Josh. You think there is no resistance in a rolling road? Resistance of the rollers but no wind resistance.. Quote Link to comment Share on other sites More sharing options...
Blackie Posted March 27, 2011 Author Share Posted March 27, 2011 so everyone near enough agreed it will do 180mph? Theretical top speeds with stock sized wheels and 6800rpm limit: So would it be more on 19" wheels? Quote Link to comment Share on other sites More sharing options...
Scott Posted March 27, 2011 Share Posted March 27, 2011 Resistance of the rollers but no wind resistance.. Not sure, but I think there is more rolling resistance from the rollers than the road. Won't take account of it perfectly but it will help Quote Link to comment Share on other sites More sharing options...
Homer Posted March 27, 2011 Share Posted March 27, 2011 Without litterally miles of road (4+) 180mph is a fair top end figure. So would it be more on 19" wheels? Now that is a can of worms Provided the diameter is larger (usually is with 19's) it'll be capable of more mph in each gear, HOWEVER, the drive ratio drops hence more power is bhp is required to to maintain any given RPM compared to the stock sized wheels. In conclusion I'd say it makes no real world difference to top speed values as aero resistance is overiding factor. Quote Link to comment Share on other sites More sharing options...
Nic Posted March 28, 2011 Share Posted March 28, 2011 So would it be more on 19" wheels? Not if you have the correct tyres sizes fitted, the overall rolling radius of the tyres should be the same whether they are 16's or 20's. If you did have a bigger rolling radius due to wrong tyres (ie. larger tyre side wall) then it would lengthen the gearing slightly, meaning you could go faster than the theoretical top speeds I posted earlier. In reality though you won't go any faster as the limiting factor is drag/wind resistance and power. Quote Link to comment Share on other sites More sharing options...
MadMax2042 Posted February 15, 2015 Share Posted February 15, 2015 A few years on... What can everyone now add to this? Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 15, 2015 Share Posted February 15, 2015 All i can add is i don't think you can get the correct rolling radius once you go above 255 on a 19" rim as you need lower profile than 30 Quote Link to comment Share on other sites More sharing options...
SPG Posted February 15, 2015 Share Posted February 15, 2015 I'm lucky if I manage over 90mph these days Quote Link to comment Share on other sites More sharing options...
Scott-tt Posted February 16, 2015 Share Posted February 16, 2015 I'm lucky if I manage over 90mph these days Lol fancy a race sunny? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.