crazy canuck Z8 Posted June 5, 2006 Share Posted June 5, 2006 Finally getting all the bugs out of the new motor,it would be helpful to know how fast i am really going.Where is the place to order a properly calibrated speedo cable,the new car looks great,i will get some new pictures for you guys soon.I can not drive down the road without people hanging out their windows sceaming and giving the thumbs up,its pretty crazy. Quote Link to comment Share on other sites More sharing options...
deja Posted June 5, 2006 Share Posted June 5, 2006 http://www.randysringandpinion.com/content/calculators/RPM.asp Quote Link to comment Share on other sites More sharing options...
Pyro Posted June 6, 2006 Share Posted June 6, 2006 Drive 10 miles down a mile marked highway. If the odometer shows 10.0 miles then your speedo is correct. If the odometer shows 11.0 miles then your speedo is reading 10% fast, So 77 on the speedo is really 70 and 99 is really 90. If the odometer reads 9.0 miles then the speedo is reading 10% slow. So 70 on the speedo is really 77 and 90 is really 99. This works pretty well to figure out how accuate your speedo is. You could also drive a 5 mile run to figure it out. Get the odometer reading divided by the distance driven to get the percentage off. I hope you did your homework in math. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted June 6, 2006 Share Posted June 6, 2006 This one might help you too: http://www.geocities.com/z_design_studio/ It would help us if you would give more info. What transmission, diff ratio, tire size, etc. Quote Link to comment Share on other sites More sharing options...
Pop N Wood Posted June 6, 2006 Share Posted June 6, 2006 Ask a hunter or fisherman buddy if you can borrow his hand held GPS. Once you know how far off the speedo is it should be a simple matter to get the right cog. Quote Link to comment Share on other sites More sharing options...
crazy canuck Z8 Posted June 7, 2006 Author Share Posted June 7, 2006 450 hp small block chev with 700r4 tires are225 50 15 the problem is i need a cable to adapt from the 700 to datsun speedo. Quote Link to comment Share on other sites More sharing options...
deja Posted June 7, 2006 Share Posted June 7, 2006 450 hp small block chev with 700r4 tires are225 50 15 the problem is i need a cable to adapt from the 700 to datsun speedo. Speedometer Cable (70 inch) #Dat-111 for $65.00 https://shell7.tdl.com/~jags/Datsun_Order.html Quote Link to comment Share on other sites More sharing options...
bschiltz Posted April 17, 2007 Share Posted April 17, 2007 I know this an old thread, but can anyone confirm that the speedo cable sold by JTR is compatable with the ZX's factory speedometer? Quote Link to comment Share on other sites More sharing options...
280zwitha383 Posted April 18, 2007 Share Posted April 18, 2007 Yes it is Quote Link to comment Share on other sites More sharing options...
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