_shaun_ Posted April 7, 2015 Share Posted April 7, 2015 its a basic mechaincal gear set so prob just anywhere that makes them ive seen a few different designs on them not sure why japan would want to change the cars to mph tho. to clear this up inside the gear box is a worm drive which is connected to the speedo via the speedo cable ( dun dun dun) this gives your speedo the mechanical movement to work and there is a small pulse generator attached which then sends a signal down to the ecu to say what speed your doing. it effectively moves ecus speed limit to 180mph as dan has said. the other option is using the HKS SLD or the likes of a piggy back ecu which alters the voltage after the speedo allowing you to remove the speed limit while maintaining the stock kilometers speedo Quote Link to post Share on other sites
Gainzy Posted April 7, 2015 Share Posted April 7, 2015 its a basic mechaincal gear set so prob just anywhere that makes them ive seen a few different designs on them not sure why japan would want to change the cars to mph tho. to clear this up inside the gear box is a worm drive which is connected to the speedo via the speedo cable ( dun dun dun) this gives your speedo the mechanical movement to work and there is a small pulse generator attached which then sends a signal down to the ecu to say what speed your doing. it effectively moves ecus speed limit to 180mph as dan has said. the other option is using the HKS SLD or the likes of a piggy back ecu which alters the voltage after the speedo allowing you to remove the speed limit while maintaining the stock kilometers speedoThanks for clearing that up I never thought of it why Japs would want to use them in that way I was thinking more speed remover but they already have the sld chips like you say so there obviously made from import supplyers maybe as an added extra for buying an import, just bought one that's all wasn't going to complain for £25. Quote Link to post Share on other sites
_shaun_ Posted April 7, 2015 Share Posted April 7, 2015 yea the likely hood is there just derived from a requirement in some countrys to run mph. id expect most japs to be running homemade sld chips as aposed to buying the expenisve hks ones ha. £25 quids a good price see some silly prices when a few people want them and not many are for sale. Quote Link to post Share on other sites
Gainzy Posted April 7, 2015 Share Posted April 7, 2015 yea the likely hood is there just derived from a requirement in some countrys to run mph. id expect most japs to be running homemade sld chips as aposed to buying the expenisve hks ones ha. £25 quids a good price see some silly prices when a few people want them and not many are for sale.Yeah I know what you mean thanks for the help. Quote Link to post Share on other sites
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