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| Spi 1275 RPM/KPH https://www.ausmini.com/forums/viewtopic.php?f=2&t=43571 |
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| Author: | blueminivan [ Fri Jul 04, 2008 7:20 pm ] |
| Post subject: | Spi 1275 RPM/KPH |
Does anyone know the rpm in the appropriate gear for each of the speed limits? I've got an SPi 1275 with an unconnected speedo cable.(hopefully). |
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| Author: | Clubby74 [ Fri Jul 04, 2008 10:59 pm ] |
| Post subject: | |
Not directly but Engine speed = Vehicle speed x Wheel rotations per km x diff ratio x gear ratio / 60 So I guess with a bit of google or maybe a search on here you will find your ratio's and a tape around your tyres will get you the last missing piece. |
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| Author: | blueminivan [ Fri Jul 04, 2008 11:35 pm ] |
| Post subject: | |
Yeah OK thanks for the tip..... But surely there's a few people out there that drive via the tacho that could give me a rough idea. |
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| Author: | wyan [ Sat Jul 05, 2008 9:56 am ] |
| Post subject: | |
Mine was an Mpi but converted to carb now.. 70kms in forth is about 2500RPM and 100kms is about 3500-3600kms I think from memory. My 1st gear is pretty short also. Does this help? cheers |
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| Author: | Number86 [ Sat Jul 05, 2008 10:47 am ] |
| Post subject: | |
Diff ratio in my SPi is 3.44:1 (standard I believe), although I haven't driven it yet, this is the same ratio as my S. This makes 80km/h 3000rpm in fourth, 100km/h just under 4000. Hope this helps. |
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| Author: | blueminivan [ Sat Jul 05, 2008 5:31 pm ] |
| Post subject: | |
Thanks for that. I only needed a rough idea until I fix the problem. |
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