Jump to content

Headers

noelg85

Recommended Posts

noelg85 Enthusiast

noelg85

Posted
Posted

I need some info please!!! my friends been telling me that theres a difference in these two. one of them gives you power at higher rpms and the other gives you better low end torque, and thats where they lost me. but i for sure want headers that will give me slight power at take off, in other words a faster take off. please help guys, thanks.

merlin5577 Senior Enthusiast

merlin5577

Posted
Posted
I need some info please!!! my friends been telling me that theres a difference in these two. one of them gives you power at higher rpms and the other gives you better low end torque, and thats where they lost me. but i for sure want headers that will give me slight power at take off, in other words a faster take off. please help guys, thanks.

 

Shorty headers give you more torque in the lower RPMs and less horsepower in the upper RPMs. Long tubes give you more horsepower in the higher RPMs and less torque in the lower RPMs.

 

I believe what you are looking for is shorty headers.

noelg85 Enthusiast

noelg85

Posted
  • Author
Posted
I need some info please!!! my friends been telling me that theres a difference in these two. one of them gives you power at higher rpms and the other gives you better low end torque, and thats where they lost me. but i for sure want headers that will give me slight power at take off, in other words a faster take off. please help guys, thanks.

 

Shorty headers give you more torque in the lower RPMs and less horsepower in the upper RPMs. Long tubes give you more horsepower in the higher RPMs and less torque in the lower RPMs.

 

 

 

thanks a bunch man. since ive been racing my truck with 22s lately, i noticed my truck has a really slow launch. hopefully the shorties will do the trick.

post-54342-1221959574_thumb.jpg

post-54342-1221959574_thumb.jpg

post-54342-1221959574_thumb.jpg

post-54342-1221959574_thumb.jpg

2000DV4.8 Senior Enthusiast

2000DV4.8

Posted
Posted
I need some info please!!! my friends been telling me that theres a difference in these two. one of them gives you power at higher rpms and the other gives you better low end torque, and thats where they lost me. but i for sure want headers that will give me slight power at take off, in other words a faster take off. please help guys, thanks.

 

Shorty headers give you more torque in the lower RPMs and less horsepower in the upper RPMs. Long tubes give you more horsepower in the higher RPMs and less torque in the lower RPMs.

 

I believe what you are looking for is shorty headers.

 

 

I thought it was the exact opposite...

 

Longtubes help down low, shorties help in the higher RPM.

 

 

EDIT:

Long-tube headers are traditionally the best choice for creating lots of torque and bottom-end power, and have very few shortcomings, save for trying to shoehorn them into most applications.

 

http://www.vetteweb.com/tech/0501vet_long_...ders/index.html

Schmids5.3l Senior Enthusiast

Schmids5.3l

Posted
Posted

Shorties are expensive factory manifolds. Properly sized long tubes give you whatever you want, better low end or high end, I'm sure some get both :lol: For low end torque, and available long tube headers (few), Thorley tri Y headers are your best bet for TQ, OBX is option 2. Both are good quality, OBX is stainless steel. I'll have personal experience with OBX LT headers this winter (hopefully). For TQ and TQ only Thoryleys are your headers. In general all the LT headers for truck will make more HP and TQ. If you need more help taking off, gears, a proper cam, and a TQ converter will make big differences. ESP gears and a TQ converter. The 22's are hurting.

merlin5577 Senior Enthusiast

merlin5577

Posted
Posted
I need some info please!!! my friends been telling me that theres a difference in these two. one of them gives you power at higher rpms and the other gives you better low end torque, and thats where they lost me. but i for sure want headers that will give me slight power at take off, in other words a faster take off. please help guys, thanks.

 

Shorty headers give you more torque in the lower RPMs and less horsepower in the upper RPMs. Long tubes give you more horsepower in the higher RPMs and less torque in the lower RPMs.

 

I believe what you are looking for is shorty headers.

 

 

I thought it was the exact opposite...

 

Longtubes help down low, shorties help in the higher RPM.

 

 

 

As pointed out, shorty headers are similar to stock manifolds (which dont flow well). In the higher RPMs the engine is pushing out more exhaust (obviously) so the shorty would restrict flow, hurting horsepower. The long tube would not restrict the flow at the higher RPM, helping horsepower. As schmids said, his best bet for torque is tri y's but those wont flow like a long tube.

DanMan_S Enthusiast

DanMan_S

Posted
Posted
Shorties are expensive factory manifolds. Properly sized long tubes give you whatever you want, better low end or high end, I'm sure some get both :lol: For low end torque, and available long tube headers (few), Thorley tri Y headers are your best bet for TQ, OBX is option 2. Both are good quality, OBX is stainless steel. I'll have personal experience with OBX LT headers this winter (hopefully). For TQ and TQ only Thoryleys are your headers. In general all the LT headers for truck will make more HP and TQ. If you need more help taking off, gears, a proper cam, and a TQ converter will make big differences. ESP gears and a TQ converter. The 22's are hurting.

 

Seconded, long tube headers are the only way to go. They are more expensive than shorties but you get what you paid for. For the LT's, longer or small diameter primaries will result in more torque and vice versa for shorter/larger primaries.

 

Headers will give a huge power/torque boost, especially when combined with supporting mods and a dyno tune that is done specifically with the headers in mind. On my C5Z06, dynatech long tubes and a dyno tune gave me an easy 40 hp at the tires.

 

Keep in mind that you may need to go with a quieter exhaust once the headers are on. These LS engines get VERY loud once they are breathing through some LT's. But they do sound freaking awesome. Your mileage will take a guaranteed hit because you'll always be on the gas to hear the sharp bark that the headers give off.

tjcbenz Enthusiast

tjcbenz

Posted
Posted

As far as shorties go, I agree that LTs are better, but just how much better are they??? I wish there was a dyno comparison between manifolds, shorties and LTs. They way I look at it, is that I will pay double for something twice as good, but I won't pay double for something 10% better. Based on JBA's website and few reviews, their headers move the torque curve way left. Although ultimately LT's ARE better, I'm wondering if shorties are "good enough"...especially for a daily driver with nothing more than a few bolt-ons, the price difference and not having to hassle with the rest of the exhaust since they just bolt up. Any opinions on my rationale here?? :)

 

http://www.jbaheaders.com/dyno.asp# First one is 5.3 with headers/exhaust

  • 2 months later...

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,837
    Total Members
    8,960
    Most Online
    bellssn690
    Newest Member
    bellssn690
    Joined

  • Who's Online   4 Members, 1 Anonymous, 524 Guests (See full list)

  • Latest Articles

  • Posts

    • Chuck FB
      Gas Prices

      By Chuck FB · Posted

      Interesting, I suspect I would have fueled up in Lee Vining as the day prior I would have filled up either in Laughlin or near there and maybe again before I entered Death Valley and once out the other side late that evening as I kept on driving into the night up near Lee Vining. Next morning I most likely fueled up in LV before heading over Tioga Pass into ( as I refer to it as "Yose .... Mite" 😁 ). And again that was 19 years ago but the price then must not have jumped out at me like the 5 bill a gallon theme of nutty cult hippy country Big Sir or head so far up their rear Aspen. I'd be curious to know where the highest prices are in the lower 48, I probably would not be far off to guess somewhere in Cali forn ie. Coldfoot and Prudhoe bay may have those prices beat but that is a whole other world up there and when prices are more normal elsewhere that is about what they can be up there I believe in no mans land. Anyway interesting that the 395 corridor is hosing people and the thing is, its tourist season and its not like there are a lot of competition options when driving up that highway from what I could see. Yup, big ole Boaterhomes and various other RV's ahead and behind me at the Yosemite entrance gate and they have to get their fuel somewhere.  
    • Atlas
      Gas Prices

      By Atlas · Posted

      Those can be high, as well as the big California cities. The ones that will pop your eyes out are the 395 corridor on the Eastern side of the Sierra Nevadas. Lee Vining, $7.19 for regular and $8.89 for diesel is what the Google said right now.
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Correct.  2019-2021 model years are serviced by a different p/n.  19420611.  Recall 2021s use 19420611.   The recall engines 2022-2024 model years are serviced with 12740076.     The difference between 19420611 and 12740076 is GM changed injector size for 2022.  The injectors are smaller on 12740076 with smaller injector bores in the cylinder heads to match the smaller injectors.  So you can't install a 19420611 in a 2022-2024, and you can't install a 12740076 in a 2019-2021.     Both engines are the replacement engine p/ns that are in the L87 recall.  So both of these are the updated engines.     Here's a version of the L87 recall with the p/ns for all the parts needed.    RCRIT-25V274-7075.pdf   Note it shows 19420611 and 12740076 with an asterisk to a footnote "Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which part to order if two or more part numbers are listed for the same part, as it may vary by vehicle options."    
    • 2017Z
      2020 Trailboss 6.2 replacement

      By 2017Z · Posted

      Looking for advice from this group. Took my flawless 2020 6.2 TB to an unnamed shop for routine rear brakes and oil change. Tech forgot to put oil back in after the full service and needles to say, destroyed my engine.  It’s all on their shop video so they are responsible.   I had my Chevy dealer do the analysis and they confirmed its compromised and said engine replacement. The manager said they only get GM reman engines from GM with full 3 yr warranty and the one they would put in is not same as what’s they are swapping out on 21-25 for recall.    I am looking for advice why that would be a different engine because obviously I had the good 6.2 year and replacing it has my concerns with that recall for 21-15   Also what’s the pros and cons of accepting the engine swap vs telling the shop that bricked the truck to pay up so I buy a new truck. I’m concerned about stigma resale eventually if I just decide to get rid of it after the swap or other issues showing up after the swap out.  
    • GN2018
      AFM Disabler Question

      By GN2018 · Posted

      Just looked up my records.  I've never gone over 5000 miles between oil changes.  At 46K miles, I have 10 oil changes.  I hope that will help.  I also installed the disabler last year.  I've still had a few times when it didn't seem to engage (which I can tell because the start stop feature kicks in), but for the most part, I think it's working.  For some reason, GM did not include the number of cylinders running in the information screen like I had on other models.  In my Cadillac, it shows me when it's running on 4 cylinders on the fuel milage screen.  I can't find that on my '21 Denali.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...