Page 120 of High Performance Parts for American V-Twins 2008 by S&S Cycle

carbs fuel systems continued ­ vfi modules features of all vfi modules easy installation ­ module plugs into the stock wiring harness altitude compensation ­ automatically adjusts for altitude variations live tuning ­ make manual changes to maps while the engine is running self diagnostics and actuator test functions engine light can be programmed to function as a shift light protune ii software included with each module updates can be downloaded from the s&s website manual tuning requires an eddy current or other steady state capable dynamometer and an exhaust gas analyzer or air fuel ratio meter engine overheat protection s&sŪ variable fuel injection vfi modules engine overheat protection both s&s vfi modules also have engine overheat protection built into the software if the cylinder head temperature reaches a predetermined set point the module begins skipping sparks this noticeable misfire not only alerts the rider that the engine is overheating but also cools the cylinder heads with unburned fuel if the temperature continues to increase the missed sparks become more frequent this alerts the rider that the overheating is becoming more severe and provides more cooling to the cylinder heads the third stage of overheat protection is very noticeable and will cause the engine to run badly at idle the overheat protection function can not be disabled and is one of the factors that allows s&s to offer increased engine warranty on complete engines sold with the vfi system see section 1 of this catalog for more information special features for 2001 07 module it s a knock-out the delphiŪ style s&s vfi module is compatible with 2001-up models and also has some additional features that make it easier to use and more useful as well first of all the interface between the module and your computer is usb this makes it compatible with nearly all newer computers without the need for serial to usb adaptors the second feature is a gear factor adjustment speedometer calibrator which allows owners of stock 2004-up motorcycles to adjust for gear ratios in the various models and allows customizers to correct their speedometers to compensate for changes in tire size and gear ratios however the most recent feature to be added to the s&s module for delphi equipped bikes is knock sensing the function of vfi knock sensing is similar to that of the award winning s&s intelligent spark technology isttm ignition system a knock sensor attached to the cylinder head detects knock and the module adjusts timing to eliminate it an s&s knock sensor kit must be installed in order to use the knock sensing feature all current design with usb connector delphi style s&s vfi modules can run in the knock sensing mode with the appropriate software update which may be downloaded from the s&s website closed loop operation ­ with closed loop sensor kit automatic tuning on the street or on the dyno dual heated oxygen sensors each cylinder is tuned individually fuel map changes can be saved to the tune file s&s vfi modules magneti marelliŪ style for 19951/2-2001 models msrp $599.95 55-5006 now includes barometric sensor relocation kit #55-1599 delphiŪ style for 2001-up models msrp $599.95 55-5090 s&s sensor kits and replacement parts s&s vfi closed loop sensor kit magneti marelli style msrp $279.95 55-1620 delphi style msrp $289.95 55-1590 knock sensor kit delphi style only call for pricing 106-0810 service kit o2 sensor msrp $79.95 55-1591 service kit connector dtm 4-postion receptacle msrp $12.95 55-1592 service kit dtm pins 10 pack msrp $15.95 55-1594 service kit oxygen sensor boss 2 pack msrp $19.95 55-1593 service kit subharness magneti marelli style msrp $64.95 55-1588 service kit subharness ­ delphi style msrp $104.95 55-1595 service kit electrical tap 10 pack msrp $9.95 55-1596 barometric sensor relocation kit msrp $34.95 55-1599 hardware kit usb cover call for pricing 55-5091 notes all current production s&s modules are closed loop compatible and all older s&s modules can be updated with the current ecu operating software and tune file with a simple download from the s&s website at www.sscycle.com please note that maps created for older versions of the ecu operating software are not compatible with the new closed loop ecu software however they can be converted if desired but you probably won t need to 5-3 visit us at www.sscycle.com

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