Lost alot of my low end after MAC header install
Thread Starter
Staging Lane
Joined: Mar 2002
Posts: 85
Likes: 0
From: Northern CA.
Lost alot of my low end after MAC header install Currently ORP (no cats)
I have a Yank 3200 TC and I used to just roast the tires at full stop. Now it is mych less dramatic.
Bummer, I didn't expect to lose that much.
Normal?
I have a Yank 3200 TC and I used to just roast the tires at full stop. Now it is mych less dramatic.
Bummer, I didn't expect to lose that much.
Normal?
Re: Lost alot of my low end after MAC header install your TQ should certainly be higher unless something is not going right. the free flow = less TQ is an old school misconception with high flow headers. put it on the track or on the dyno. you will be happy with the results. it will just SOUND like you lost TQ due to hearing the exhaust more. them motor is not working harder.
*Bad Trader*
Joined: Nov 2001
Posts: 1,459
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From: here and there
Re: Lost alot of my low end after MAC header install it just "sounds" that way cuz you get more sound and the load is not as great on the engine. get track times and dyno numbers youll see. i thought the same when i got my grotts on but after track and dyno i was like "holy ****" thats great i gained about 20-25 lbstq with the long tubes.
Thread Starter
Staging Lane
Joined: Mar 2002
Posts: 85
Likes: 0
From: Northern CA.
Re: Lost alot of my low end after MAC header install Thanks for all the input, It *is* very loud.
The Carsound Cats will be here Tuesday.
That should quiet it down so I can tell better. even if I lose a tenth it will be worth it.
I have a Dyno scheduled, I too, am curious to see where I am at.
Great group here,
Thanks again.
The Carsound Cats will be here Tuesday.
That should quiet it down so I can tell better. even if I lose a tenth it will be worth it.
I have a Dyno scheduled, I too, am curious to see where I am at.
Great group here,
Thanks again.
Re: Lost alot of my low end after MAC header install I got the mac headers and off road y-pipe put in this past weekend.
At first I felt the same as you but over time, it is the sound that messes with my head. I have no muffler right now but it is the loudness that makes me feel I am gong slower and do smaller burnouts. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Eric
At first I felt the same as you but over time, it is the sound that messes with my head. I have no muffler right now but it is the loudness that makes me feel I am gong slower and do smaller burnouts. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Eric
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TECH Fanatic
Joined: Nov 2001
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From: I-L-L-I-N-O-I-S
Re: Lost alot of my low end after MAC header install Its not that you lost torque but rather that your overall torque curve just moved up with the addition of your new free flowing aftermarket headers. Think of it as your powerband is a little different or has changed a bit(but for the better!). I had the same problem with my old SLP LM exhaust and I hear this common misconception all the time. Besides, you may have a point since the midlength headers aren't really supposed to improve low-end torque like longtubes do.
Mike
Mike
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TECH Addict
Joined: Nov 2001
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From: Bellevue, Wa
Re: Lost alot of my low end after MAC header install I gained a ton of low end.
Don't put out the verdict yet unti you get the cats put in and some miles on the car.
your are at the point in # of mods to seriously look at getting atap so you know whats going on with your car. you may benefit from a MAFT or Computer tuning at this point.
Don't put out the verdict yet unti you get the cats put in and some miles on the car.
your are at the point in # of mods to seriously look at getting atap so you know whats going on with your car. you may benefit from a MAFT or Computer tuning at this point.
On The Tree
Joined: Nov 2001
Posts: 117
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From: USA
Re: Lost alot of my low end after MAC header install something is not right.
I gained a lot of power/torque down low with the MACs. I would get an ATAP and check it out.
Something is out of whack if you say it is that bad.
I gained a lot of power/torque down low with the MACs. I would get an ATAP and check it out.
Something is out of whack if you say it is that bad.
Thread Starter
Staging Lane
Joined: Mar 2002
Posts: 85
Likes: 0
From: Northern CA.
Re: Lost alot of my low end after MAC header install 2000LS1Z28
Thank You for the excellent explanation.
It does kick in gtreat after about 5 feet.
Top End is way up there, not enough highway to test it!
Thank You for the excellent explanation.
It does kick in gtreat after about 5 feet.
Top End is way up there, not enough highway to test it!
