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My Turbo Kit on 4G91
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<blockquote data-quote="tr4657" data-source="post: 747993" data-attributes="member: 16189"><p>I installed a 4G91 DOHC into my wira in year 2000. After sometime, I installed a GSR turbo kit into it. I know the consequences; the engine is not capable of handling a turbo in NA engine but my engine is automatic so it won't go into high rev unless i dropped it manually to 2 or OD off. </p><p></p><p>Here is the problem and my engine setup:</p><p>the injectors are original</p><p>throttle body is GSR</p><p>turbine is TD06 double fin</p><p>cut off still at 175-180kmh</p><p>intercooler 1.8 standard (small one)</p><p>Denso Iridium Spark Plugs</p><p>Simota Cone Air Filter</p><p></p><p>After installing it, there is no difference; in fact, the engine is slower is speed compared when I didn't installed the KIT. Power comes in the middle of revving. If I pressed to hard, engine roars hard but no speed, if I pressed pedal at the middle, power comes but still pickup slow.</p><p></p><p>Right now, when I turned the aircond, the the engine and rev needle is not stable, playing between 600rpm to 1200rpm then dropped back to 600/500 rpm...</p><p></p><p>Anyone faced this problem before? Please let me know? Is it becoz of the injectors? Which injectors is suitable...? I also installed another fuel pump at the engine... Themachanic said that the engine will require two fuel pumps... Don't know if it is the cause of the problem... Maybe the throttle body? Please anyone have done this, tell me the solution in detail... Of course, don't tell me to get the original GSR engine... :)</p><p></p><p>Any help is appreciated...</p><p></p><p>Previously without turbo, I can even follow GTI on pickup</p><p>nut now, even a standard wira can follow me at start...</p></blockquote><p></p>
[QUOTE="tr4657, post: 747993, member: 16189"] I installed a 4G91 DOHC into my wira in year 2000. After sometime, I installed a GSR turbo kit into it. I know the consequences; the engine is not capable of handling a turbo in NA engine but my engine is automatic so it won't go into high rev unless i dropped it manually to 2 or OD off. Here is the problem and my engine setup: the injectors are original throttle body is GSR turbine is TD06 double fin cut off still at 175-180kmh intercooler 1.8 standard (small one) Denso Iridium Spark Plugs Simota Cone Air Filter After installing it, there is no difference; in fact, the engine is slower is speed compared when I didn't installed the KIT. Power comes in the middle of revving. If I pressed to hard, engine roars hard but no speed, if I pressed pedal at the middle, power comes but still pickup slow. Right now, when I turned the aircond, the the engine and rev needle is not stable, playing between 600rpm to 1200rpm then dropped back to 600/500 rpm... Anyone faced this problem before? Please let me know? Is it becoz of the injectors? Which injectors is suitable...? I also installed another fuel pump at the engine... Themachanic said that the engine will require two fuel pumps... Don't know if it is the cause of the problem... Maybe the throttle body? Please anyone have done this, tell me the solution in detail... Of course, don't tell me to get the original GSR engine... :) Any help is appreciated... Previously without turbo, I can even follow GTI on pickup nut now, even a standard wira can follow me at start... [/QUOTE]
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My Turbo Kit on 4G91
