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Forced Induction & Engine Management
Haltech Sprint 500
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<blockquote data-quote="nan83" data-source="post: 1063391952" data-attributes="member: 6718"><p>huummm... you need to search if got a device that can control stepper motor tb independently.. i oso donno about it... the cheapest way is to convert it to cable throttlebody...<span style="color: Silver"></span></p><p><span style="color: Silver"></span></p><p><span style="color: Silver"><span style="font-size: 9px">---------- Post added at 08:52 AM ---------- 6 hour anti-bump limit - Previous post was at 08:44 AM ----------</span></span></p><p><span style="color: Silver"></span></p><p><span style="color: Silver"></span></p><p></p><p></p><p>s500 cannot drive coil... the ecu will burn..</p><p></p><p>CDI like dynatech arc can act like ignitor. s500-->arc-->racetech (but need 2unit, arc only 2ch)</p><p>maybe not all CDI unit can run without ignitor module.. need to it spec first ...</p><p></p><p>you aso can run 2 oem ignitor or microtech X4.... X4 is nothing special, just 4ch ignitor...<span style="color: Silver"></span></p><p><span style="color: Silver"></span></p><p><span style="color: Silver"><span style="font-size: 9px">---------- Post added at 09:39 AM ---------- 6 hour anti-bump limit - Previous post was at 08:52 AM ----------</span></span></p><p><span style="color: Silver"></span></p><p><span style="color: Silver"></span></p><p></p><p>waa... cannot say like that.. it not a waste, mybe it a must for certain engine.. the new tech been make is a improvement for older tech... why need improvement, coz old tech still have problem and cannot support in certain condition ...</p><p></p><p>wasted spark have 2 spark ... 1="ignite spark" 2="waste spark" (this is suppose not to ignite)</p><p></p><p>when it spark ??</p><p></p><p>-1st spark = ignite spark = spark 5~45'BTDC at compress stroke </p><p>-2nd spark =waste spark = spark 15~55'ABDC at exhaust stroke</p><p></p><p>what the prob with this sistem??</p><p></p><p>-the prob is the second spark "waste spark"</p><p></p><p>why 2nd spark "waste spark" prob??</p><p></p><p>-coz it spark it exhaust stroke... normally it not a prob coz no fuel at exhaust stroke, so no explotion or ignition happen.. so it fire for nothing & it a waste ...</p><p>- but we need to know, at exhaust stroke... valve overlap start to happen.. it will communicate the air fuel mixture & exhaust.... the communication of exhaust stroke & intake stroke will make a prob to us with wasted spark system.. it will cause backfire to the intake system & exhaust system... intake system also go to crank case system... it will make more trouble to us...</p><p></p><p>what will amplify backfire prob to happen ??</p><p>- use wild cam.. for me, start with 280' duration (more overlap), i will use sequential ignition... </p><p>- use of NOS</p><p>- batch fuel injection ( injector inject fuel while engine do not want it, fuel will stay on valve) </p><p>- hi overlap running at high rpm</p><p></p><p>Some true story:</p><p>-blow composite sump cover(steel sump no worry)(the explosion go to intake than go to crank case) </p><p>-blow engine</p><p>-back fire while starting (batch fuel + wasted spark + hi cam = easier to happen)</p><p>-etc</p><p></p><p>just sharing some info... any wrong, please educate me... thanks</p></blockquote><p></p>
[QUOTE="nan83, post: 1063391952, member: 6718"] huummm... you need to search if got a device that can control stepper motor tb independently.. i oso donno about it... the cheapest way is to convert it to cable throttlebody...[COLOR=Silver] [SIZE=1]---------- Post added at 08:52 AM ---------- 6 hour anti-bump limit - Previous post was at 08:44 AM ----------[/SIZE] [/COLOR] s500 cannot drive coil... the ecu will burn.. CDI like dynatech arc can act like ignitor. s500-->arc-->racetech (but need 2unit, arc only 2ch) maybe not all CDI unit can run without ignitor module.. need to it spec first ... you aso can run 2 oem ignitor or microtech X4.... X4 is nothing special, just 4ch ignitor...[COLOR=Silver] [SIZE=1]---------- Post added at 09:39 AM ---------- 6 hour anti-bump limit - Previous post was at 08:52 AM ----------[/SIZE] [/COLOR] waa... cannot say like that.. it not a waste, mybe it a must for certain engine.. the new tech been make is a improvement for older tech... why need improvement, coz old tech still have problem and cannot support in certain condition ... wasted spark have 2 spark ... 1="ignite spark" 2="waste spark" (this is suppose not to ignite) when it spark ?? -1st spark = ignite spark = spark 5~45'BTDC at compress stroke -2nd spark =waste spark = spark 15~55'ABDC at exhaust stroke what the prob with this sistem?? -the prob is the second spark "waste spark" why 2nd spark "waste spark" prob?? -coz it spark it exhaust stroke... normally it not a prob coz no fuel at exhaust stroke, so no explotion or ignition happen.. so it fire for nothing & it a waste ... - but we need to know, at exhaust stroke... valve overlap start to happen.. it will communicate the air fuel mixture & exhaust.... the communication of exhaust stroke & intake stroke will make a prob to us with wasted spark system.. it will cause backfire to the intake system & exhaust system... intake system also go to crank case system... it will make more trouble to us... what will amplify backfire prob to happen ?? - use wild cam.. for me, start with 280' duration (more overlap), i will use sequential ignition... - use of NOS - batch fuel injection ( injector inject fuel while engine do not want it, fuel will stay on valve) - hi overlap running at high rpm Some true story: -blow composite sump cover(steel sump no worry)(the explosion go to intake than go to crank case) -blow engine -back fire while starting (batch fuel + wasted spark + hi cam = easier to happen) -etc just sharing some info... any wrong, please educate me... thanks [/QUOTE]
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