SC400's Cold Air, Ignition, and Exhaust
07-27-05, 03:00 PM
#1
SC400's Cold Air, Ignition, and Exhaust
I'm just thinking about how much horsepower I will gain for doing these upgrades on a 1995 SC400.
1) A cold air system that I plan to cut a hole under the stock air box position and run a full custom intake pipe and its filter down underneat. I might use the Bypass valve by AEM, which eliminate the water to be sucked in the engine. I believe it'll make more hp than the short ram or stock air box. How much hp will I gain?
2) 2 MSD 6AL ignition boxes with external coils that give more sparks. How much hp will I gain?
3) A full exhaust system including the 2 hi-flow cat-converters in the upper part, with no big cat in the middle like stock, and 2 resonators near the rear mufflers. I will still use the stock headers since I don't want to haul the engine out. How much hp will I gain?
Any info. is greatly appreciated.
1) A cold air system that I plan to cut a hole under the stock air box position and run a full custom intake pipe and its filter down underneat. I might use the Bypass valve by AEM, which eliminate the water to be sucked in the engine. I believe it'll make more hp than the short ram or stock air box. How much hp will I gain?
2) 2 MSD 6AL ignition boxes with external coils that give more sparks. How much hp will I gain?
3) A full exhaust system including the 2 hi-flow cat-converters in the upper part, with no big cat in the middle like stock, and 2 resonators near the rear mufflers. I will still use the stock headers since I don't want to haul the engine out. How much hp will I gain?
Any info. is greatly appreciated.
07-28-05, 02:03 PM
#2
Pole Position
try piggy back
with ONLY tune it with piggy (STOCK car) I gain 17 rwhp (that is 20 crank HP) and 15 rwlbs (about 18 lbs on crank) in wide RPMs range.
car run much faster and stronger than before
I think that afrer headers+ full exhaust and with tune it with that piggy back 50 hp gain is easyly possible.
You MUST have possibility changing ECU inputs and outputs to gain max from mechanic changes you will do. Without you do not even unleas half it can do .
there is my piggy back
perhaps it will be avaible...
https://www.clublexus.com/forums/sho...d.php?t=172232
with ONLY tune it with piggy (STOCK car) I gain 17 rwhp (that is 20 crank HP) and 15 rwlbs (about 18 lbs on crank) in wide RPMs range.
car run much faster and stronger than before
I think that afrer headers+ full exhaust and with tune it with that piggy back 50 hp gain is easyly possible.
You MUST have possibility changing ECU inputs and outputs to gain max from mechanic changes you will do. Without you do not even unleas half it can do .
there is my piggy back
perhaps it will be avaible...
https://www.clublexus.com/forums/sho...d.php?t=172232
07-28-05, 04:33 PM
#3
Originally Posted by stevechumo
I'm just thinking about how much horsepower I will gain for doing these upgrades on a 1995 SC400.
1) A cold air system that I plan to cut a hole under the stock air box position and run a full custom intake pipe and its filter down underneat. I might use the Bypass valve by AEM, which eliminate the water to be sucked in the engine. I believe it'll make more hp than the short ram or stock air box. How much hp will I gain? 8-10hp ( wheels)
2) 2 MSD 6AL ignition boxes with external coils that give more sparks. How much hp will I gain? 2-5hp ( wheels)
3) A full exhaust system including the 2 hi-flow cat-converters in the upper part, with no big cat in the middle like stock, and 2 resonators near the rear mufflers. I will still use the stock headers since I don't want to haul the engine out. How much hp will I gain? 10-15 ( wheels)
Any info. is greatly appreciated.
1) A cold air system that I plan to cut a hole under the stock air box position and run a full custom intake pipe and its filter down underneat. I might use the Bypass valve by AEM, which eliminate the water to be sucked in the engine. I believe it'll make more hp than the short ram or stock air box. How much hp will I gain? 8-10hp ( wheels)
2) 2 MSD 6AL ignition boxes with external coils that give more sparks. How much hp will I gain? 2-5hp ( wheels)
3) A full exhaust system including the 2 hi-flow cat-converters in the upper part, with no big cat in the middle like stock, and 2 resonators near the rear mufflers. I will still use the stock headers since I don't want to haul the engine out. How much hp will I gain? 10-15 ( wheels)
Any info. is greatly appreciated.
Jonny
07-28-05, 07:16 PM
#4
Originally Posted by JTJerryls400
try piggy back
with ONLY tune it with piggy (STOCK car) I gain 17 rwhp (that is 20 crank HP) and 15 rwlbs (about 18 lbs on crank) in wide RPMs range.
car run much faster and stronger than before
I think that afrer headers+ full exhaust and with tune it with that piggy back 50 hp gain is easyly possible.
You MUST have possibility changing ECU inputs and outputs to gain max from mechanic changes you will do. Without you do not even unleas half it can do .
there is my piggy back
perhaps it will be avaible...
https://www.clublexus.com/forums/sho...d.php?t=172232
with ONLY tune it with piggy (STOCK car) I gain 17 rwhp (that is 20 crank HP) and 15 rwlbs (about 18 lbs on crank) in wide RPMs range.
car run much faster and stronger than before
I think that afrer headers+ full exhaust and with tune it with that piggy back 50 hp gain is easyly possible.
You MUST have possibility changing ECU inputs and outputs to gain max from mechanic changes you will do. Without you do not even unleas half it can do .
there is my piggy back
perhaps it will be avaible...
https://www.clublexus.com/forums/sho...d.php?t=172232
07-29-05, 06:45 AM
#5
Pole Position
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GS - 2nd Gen (1998-2005)
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