03-07-2012, 03:27 PM | #1 |
Drives: 2011 denali hd2500 Join Date: Sep 2011
Location: clarkston, mi
Posts: 186
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Is anyone putting headers on?
And if so, who is the best and or what kind? Also, are you keeping stock cats on or changing them also? Thanks, I'm trying to start to get my ducks in a row.
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03-07-2012, 03:47 PM | #2 |
Drives: 2023 ZLE Join Date: Jun 2009
Location: Detroit
Posts: 1,717
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No, I'm not going to make any performance modifications at all to this car. I just sold my 2011 2SS that I had made a bunch of modifications to (heads, cam, headers, high flow cats, etc.). If I were going to put headers on the ZL1 I would go with Kooks with their high flow catalysts. If you are going to do the headers you may as well do the catalysts. Just my opinion here...the warranty and ease of resale (if you ever needed to sell it) is much more valuable than 100 extra HP on a car that already makes enough from the factory. Agian, for me no mods. Some will and that's cool.
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03-07-2012, 03:49 PM | #3 |
I will be throwing on some Kooks LT headers with cats as soon as mine arrives! I also recommend going with high flow cats, less smell, not as loud etc.
/Erik |
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03-07-2012, 03:57 PM | #4 |
Drives: 2010 2lt chevy camaro Join Date: Jun 2011
Location: Miami FL
Posts: 224
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Erik your getting the Zl1? Cant wait to see that monster
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03-07-2012, 03:58 PM | #5 |
03-07-2012, 04:31 PM | #6 |
Drives: 10 CTS-V Join Date: Oct 2010
Location: Dallas
Posts: 37
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The cats should already be high flow if anything like the CTS-V. Change the exhaust and be sure to tune as well. Nothin simple anymore.
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03-07-2012, 04:39 PM | #7 |
Petro-sexual
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It'll be interesting to learn the gains. I'm getting conflicting information... I've seen some big shops claim LTs on LS9 motors don't really produce much gain; I've read some comments by shops in our Community that suggest something similar...
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'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
03-07-2012, 04:49 PM | #8 | |
Drives: 2013 ZL1 Join Date: Oct 2011
Location: tangent or
Posts: 2,984
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Quote:
I probabaly will. I have read that when you add headers though sometimes you can lose boost. If this is true I want to do headers at the same time as my pulley upgrade so they will both work together. I will definatly go with cats if I do the extra fuel smell annoys me now that I am not used to it anymore. If I do I think I will use either kooks or american racing. for me I would like to get the car well into the 11's on stock rubber. that is kind of what I am used to driving right now. other wise I will lose penis size for sure. It is hard to say at this point though. I though I was going to mod my Z06 a bunch and it is just pretty fast as is so I concentrated on paying it off instead of modding. if it is fast "enough" I might just leave it alone for a bit and buy the .50cal I want instead. It all comes down towhether or not I want to try and outrun the Zombies or stand and fight.
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shopping for 2017+1le or zl1
2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned |
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03-07-2012, 06:20 PM | #9 |
Drives: Charger/TL1000R/Cobalt/ZL1 Join Date: Sep 2011
Location: Ontario,Canada
Posts: 1,207
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......... and buy the .50cal I want instead. It all comes down towhether or not I want to try and outrun the Zombies or stand and fight.[/QUOTE]
Did someone mention guns? Would that be a handgun or rifle? I was forced into buying a new Springfield M1A National Match.I was surfing the net and found a dealer that actually had some.They seem to be rare in Canada,well lots of cheap Chinese made ones around. I prefer the real McCoy myself! |
03-07-2012, 07:00 PM | #10 |
Drives: 2017 ZL1 Status "Thank You!" Join Date: Feb 2009
Location: SC
Posts: 2,498
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Well, I've read that if you put headers on, your supercharger pressure rates drop.... not sure the overall benefit is there with just headers and no supercharger mods. And then add the cost of a refused warranty claim. ANY performance mods will get you denied IMHO.
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03-07-2012, 07:38 PM | #11 |
Drives: 1969 502 4 sp, 2013 ZL1, 2008 Z06 Join Date: Feb 2012
Location: Georgia
Posts: 46
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I put AR headers on my 2011 SS along with cold air & tune. It made 420 to the rear wheels. I have never had a supercharged car but plan on doing headers & pulley mod. I would do the cats as well if I were you. I have a bone stock 2008 Z06 & want the Zl1 to have that kind of power. It's gonna be a challenge with the extra weight. The Z06 is a beast. My 2011 SS pulled hard out of the hole but the Z06 just keeps pulling.
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03-07-2012, 07:55 PM | #12 | |
Order in on 13' ZL1 vert
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Quote:
I put 1-7/8th Kooks stepped coated headers on my Magnum SRT8 with a 426 AFTER I put a 2.3L Magnuson supercharger on, and measured no boost level loss at any RPM on many dyno pulls. To compensate for the mild lower rpm torque loss, I change the torque converter to a 3000 stall and that combo is great! I could be wrong with the LSA boosted motor, but it wouldn't make sense if boost pressures dropped. |
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03-07-2012, 11:35 PM | #13 |
CaRaHoLiC
Drives: '12 ZL1,67 Cam,68 Biscayne 427 4 sp Join Date: Aug 2011
Location: B.C. Canada
Posts: 1,701
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I am definately slappin on some long tubes..not sure which yet.
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2012 ZL1
2.55 upper, 10" lower pullies, Innovators west billet hub and sfi balancer, solid blower drive isolator, 50 mm idler kit, full length S/S headers no cats, comp cams custom grind cam, comp roller rocker trunion kit, comp push rods,dual valve springs retainers and locks, Injector dynamics ID850 inectors, Rotofab ZL1 cold air kit, Lingenfelter 160 thermostat, Rotofab intercooler reservoir, stock plugs, LS7 90mm throttle body, GTO clutch reservoir mod, my own custom catch can, Tuning by Jannetty, install by me. |
03-08-2012, 09:34 AM | #14 | ||
Petro-sexual
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Quote:
I was forced into buying a new Springfield M1A National Match.I was surfing the net and found a dealer that actually had some.They seem to be rare in Canada,well lots of cheap Chinese made ones around. I prefer the real McCoy myself![/QUOTE] I have a .50 AE on order (actually - a .44 mag that I have to convert to .50 because CA sucks), so, eventually - I'll do both Quote:
I read a CTS-V header review in GMHTP several issues ago, and I think they reported a couple psi loss; not surprising... BUT... we have different manifolds and exhaust on ZL1 so it'll be a little different but probably not too much. What's MORE interesting is the latest issue where ADM installed a Stage 1 kit with an upper pulley, some intake goodies, isolator, ported snout, and tune, and picked up something like +60RWHP. Where the interesting facts were, were a new snout (the 'V was a new '12 model) with an additional vacuum port; but the car put down 520 RWHP on a dyno' that, in the past, 'Vs put down about 490... They suggested, perhaps, there were some more changes for LSA the '12 MY that weren't announced. Anyways - I'm just saying it'll be interesting to see how ZL1 responds to all these mods'
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'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
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