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Old 10-12-2011, 07:47 AM   #5
geiesrp
 
Join Date: Dec 2008
Location: Switzerland
Age: 13
Posts: 20
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Quote:
The biggest issue with this mod is having a functioning speedometer. the s14 pulls the signal from the transmission, while the s15 uses a sensor in the differential. To resolve this issue, i ordered the dakota digital sgi-5 converter box. But, Joel was still unable to get the cluster to read a signal. Nothing was working...he verified that the speed sensor was in fact funtioning, and double, triple, even quadruple-checked to make sure the wires were plugged in correctly. NO EFFING LUCK!
where 'quadruple' is exactly the point. The SGI5 can upconvert 4 times - you need factor 8.8.

I finally found a way to upconvert the signal using the standard s14 speed sensor:

s14 silvia speed signal to s15 frequency multiplier - YouTube
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