This Sucks !!
07-09-2007, 10:23 AM
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This Sucks !!
Okay Ever Since I Put That Fukin Hahn Racecraft 3inch Catback On My Car Has Been Sooooo Noticiably Slowwwwwwwwwwwwwww! What Can I Do To Fix This Crap
07-09-2007, 10:30 AM
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Well I Have To Keep It On Becuase 1 I Threw My Stock Out 2 I Got No Money And 3 It Sounds Good And I Get Complements But That Sucks Wat Can I Do To Get This Baby Up To Sspeed To Compensate For All That Lost Tourque
07-09-2007, 10:38 AM
#5
that's why i tell people all the time that 3" is too big, unless you're putting out serious power. it shifts your power band way up into the rpm range, so unless you're really on the engine very hard and in the upper rpm range it's not really helping any. alot of people think that with exhaust bigger is better. if that were the case we would all have 6" exhausts.
there's really no need for what you're looking to do to be over 2.5". you asked about what you can do to get the power back, you can get a smaller exhaust.
there's really no need for what you're looking to do to be over 2.5". you asked about what you can do to get the power back, you can get a smaller exhaust.
07-09-2007, 10:40 AM
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yesm hes right, unless you want to chop your car up and swap an lt1 in it, lol, 3 is just too much. no way around it, so what i would do is call hahn, you should be able to get you money back if they are a company that gives a damn about their customers.
07-09-2007, 10:45 AM
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07-09-2007, 01:09 PM
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Jesus christ. I LOVE these guys who think 3" is too large for our cars. It's not. If you want every bit of performance you WANT a 3" downpipe and exhaust along with a header.
Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good thing when it's replaced with top end horsepower.
Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU
Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good thing when it's replaced with top end horsepower.
Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU
07-09-2007, 01:14 PM
#18
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Correction:
It's too big for a naturally aspirated & supercharged setup (atleast M62 setup) because the engine and exhaust still works off the basics of exhaust velocity and scavenging effects.
With a turbocharged vehicle no matter what size engine, exhaust velocity means little and getting rid of back pressure is of importance when increasing the exhaust size. Larger diameter exhaust system = less restriction = less backpressure. Ideally, you can have no exhaust system and just a open downpipe on a turbo vehicle and gain the most power.
It's not comphensating for the fact that you are shifting your powerband. You're just gaining power to make it FEEL like you are fine. Exhaust velocity still matters and plays a effect no matter what pulley you get.
It's too big for a naturally aspirated & supercharged setup (atleast M62 setup) because the engine and exhaust still works off the basics of exhaust velocity and scavenging effects.
With a turbocharged vehicle no matter what size engine, exhaust velocity means little and getting rid of back pressure is of importance when increasing the exhaust size. Larger diameter exhaust system = less restriction = less backpressure. Ideally, you can have no exhaust system and just a open downpipe on a turbo vehicle and gain the most power.
Jesus christ. I LOVE these guys who think 3" is too large for our cars. It's not. If you want every bit of performance you WANT a 3" downpipe and exhaust along with a header.
Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good think when it's replaced with top end horsepower.
Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU
Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good think when it's replaced with top end horsepower.
Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU
Last edited by NJHK; 07-09-2007 at 01:14 PM. Reason: Automerged Doublepost
07-09-2007, 01:18 PM
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Jesus christ. I LOVE these guys who think 3" is too large for our cars. It's not. If you want every bit of performance you WANT a 3" downpipe and exhaust along with a header.
Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good think when it's replaced with top end horsepower.
Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU
Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good think when it's replaced with top end horsepower.
Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU
07-09-2007, 01:21 PM
#20
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first off if its your opinion thats fine, but dont cuss at me you little punk. and yes it is too damn big. everyone isnt saying that for no friggin reason. he just told us his car is way noticeably slower. does that sound like a small 2 lbs of tourqe difference??? anyone that knows more then basic knowledge with autos will tell you, a 3 inch system is too much for a 4 cylinder thats stock. i would even go so far as to say its too much for a 6 cylinder. if i am wrong on that then i guess flowmaster doesnt know what they are talking about, what do they know about exhaust anyway??? whats your background on cars, hmmm? how old are you? sound like your not a day older then 16 cussing at people you dont even know. is your balt your first car?
07-09-2007, 01:23 PM
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first off if its your opinion thats fine, but dont cuss at me you little punk. and yes it is too damn big. everyone isnt saying that for no friggin reason. he just told us his car is way noticeably slower. does that sound like a small 2 lbs of tourqe difference??? anyone that knows more then basic knowledge with autos will tell you, a 3 inch system is too much for a 4 cylinder thats stock. i would even go so far as to say its too much for a 6 cylinder. if i am wrong on that then i guess flowmaster doesnt know what they are talking about, what do they know about exhaust anyway??? whats your background on cars, hmmm? how old are you? sound like your not a day older then 16 cussing at people you dont even know. is your balt your first car? and you are absolutely a moron for suggesting low end tourqe is not important. cobalts are built for low end, guess the roots style blower wasnt enough of a clue for your punk ass.
07-09-2007, 01:24 PM
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07-09-2007, 01:25 PM
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You might be right but sometimes a dyno isn't needed to tell when something is wrong. Just sometimes.
07-09-2007, 01:26 PM
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you go ahead and do that, if you would do something against good sound advice form all these people because you want to see a friggin peice of paper go right ahead child, and if someone didnt know their cars performance well enough to tell when something is wrong they should not be driving a "go fast" car
07-09-2007, 01:27 PM
#25
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