What speed

[Bobfish]

Ive had 175 indicated at 3am, bone stock, private road, very very low temps outside (like bitterly cold)

thats indicated though, and 80mph on the clock is 75 on road angel, so id hate to think how inaccurate the speedo is high up. Once the cars run in ill let you know my GPS speed

[dre]

check this link out http://rx7.com/store/rx7/fddrivetrain_rearend.html scroll to bottom of page for table.

If you are doing 7,500rpm in 5th that equates to 182mph (remember on standard rims/tyres) so speed will be higher with bigger wheels.  :burnout

[maximtaylor]

Mine is fairly accurate to about 100 mph, only around 2mph out.

When the speedo says 180, the gps says 165.

[nikp]

If you are doing 7,500rpm in 5th that equates to 182mph (remember on standard rims/tyres) so speed will be higher with bigger wheels.

That basically agrees with my calculation

[dre]

yep, spot on mate.

So if i can get 5th gear to max out at 9,000 rpm, then theoretically i\'ll be breaking the 200mph barrier!!  :evillaugh  :evillaugh  :evillaugh

[Donato]

My speedo says 90mph when im actually doing 70mph...its a bit broken... must get my stolen road angel replaced soon so i know what speed im actually doing.. :rolleyes:

[G@NDY]

must get my stolen road angel replaced soon so i know what speed im actually doing..

What would be the fun in that :driving