Engine, Intake, Exhaust Modifications to your Normally Aspirated Hyundai engine. Cold Air Intakes, Spark Plugs/wires, Cat back Exhaust...etc.

loss of power in the upper RPM range

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Old 07-07-2004, 05:05 AM
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hey peeps can, I cant redline it anymore, with the exhaust in, I lose all power at 5500 RPM, I hope its not the clutch giving out but it feels like its gagging at 5500, my mechanic said it needs fuel, due to the increased intake and exhuast, what do ya think?? the one on SR is too expensive
Old 07-07-2004, 05:51 AM
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check your fuel filter recently?
Old 07-07-2004, 09:32 AM
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Good question, how many miles are on it Lone?

Don't forget everyone, he just did the Tranny swap.

What mods do you have done?

BTW, please go to the main page, www.rdtiburon.com and fill out your profile.
Old 07-07-2004, 09:32 AM
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well i replaced that at 45000, maybe, i thought maybe fuel pump
Old 07-07-2004, 04:27 PM
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stupid question alert... how is the cat? A clogging or melted cat will start causing trouble at the high end before it totally takes a dump and chokes your car off compleatly.
Old 07-08-2004, 09:19 AM
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just put the cat in, only 300 miles on a 91000 series, carsound. Does it matter the direction you put the car in??? it didnt have any arrows and it looked the same from both sides.

recently installed: 4-1 header, 91000 series carsound cat, 28 inch Thrushmaster glasspack, and a blue anodized Apexi N1 muffler, all with 2.5 inch aluminized pipe
Old 07-08-2004, 03:42 PM
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it just seems that if all your problems started AFTER the exhaust was put in.. I would start looking there for your answers. Definatly get under your car and look around some.

*Edit*

Have you reset the ECU after the mods? that might help
Old 07-12-2004, 09:48 AM
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yup, several times, all the power is there unti li hit 5500, my friend said he can get me a deal on a dyno run, so Ill keep you updated on the issue, maybe i can figure the problem out with a dyno sheet, Im gonna guess and say I have about 135 at the wheels, we'll see. thanks Mad
Old 07-15-2004, 02:33 PM
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on 89 i lose power at 55, and 87 on a hot texas day i lose it at 55.... hmmm...
42k
Old 07-15-2004, 03:48 PM
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damn, im using 92 and 93



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