1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Exhaust vs Cold Air Intake

Discussion in 'Performance and Tuning' started by Westdog976, Dec 22, 2008.

?

Exhaust or Cold Air Intake

  1. Exhaust

    488 vote(s)
    62.5%
  2. Cold Air Intake

    293 vote(s)
    37.5%
  1. Feb 21, 2012 at 7:33 AM
    #101
    paul's08

    paul's08 Active Member

    Joined:
    Dec 10, 2009
    Member:
    #27323
    Messages:
    41
    Gender:
    Male
    First Name:
    Paul
    indiana
    Vehicle:
    08 TRD Sport
    What were the results below 3400. For some highly modified engines it could be a loss. What are the results for an engine with an air cleaner and a muffler change? More in, more out ? How munch more?
     
  2. Feb 21, 2012 at 7:48 AM
    #102
    Torspd

    Torspd Tor-nication

    Joined:
    Sep 18, 2009
    Member:
    #22958
    Messages:
    5,954
    Gender:
    Male
    First Name:
    Tor
    Houston
    Vehicle:
    MMVI 4.4L 4x4 Access Cab
    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] ProEFI Pro128 EMS [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 170* T-stat mod [] APR Large Fuel Rail [] Aeromotive Stealth 340 LPH Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    Can't get lower starting point on an auto. Otherwise it shifts mid pull.

    You want to see the results, go here: www.xr-underground.com then start a search for dyno results. :thumbsup:

    You will find a lot.
     
  3. Feb 21, 2012 at 8:01 AM
    #103
    paul's08

    paul's08 Active Member

    Joined:
    Dec 10, 2009
    Member:
    #27323
    Messages:
    41
    Gender:
    Male
    First Name:
    Paul
    indiana
    Vehicle:
    08 TRD Sport
    You refer to an engine with manifold, cam, and headers and rev to 3400 to 6200. That will get you gains at those rpms due to a scavenging effect. What does that have to do with a daily driver with a air cleaner and a muffler change?
     
  4. Feb 21, 2012 at 8:09 AM
    #104
    whippersnapper02

    whippersnapper02 Well-Known Member

    Joined:
    Dec 20, 2009
    Member:
    #27905
    Messages:
    35,214
    Gender:
    Male
    First Name:
    Christian
    Yorba Linda, CA
    Vehicle:
    10 MGM TRD OR 4wd Auto DCSB
    Banks Monster Exhaust, Pop n Lock tailgate lock, Hook-Ups tie down brackets, USA Spec Ipod adaptor, WO seat covers, color matched grill with Grillcraft insert, Tuffy locking bed box
    You forgot to take the braaaaaap factor into consideration.
     
  5. Feb 21, 2012 at 8:17 AM
    #105
    paul's08

    paul's08 Active Member

    Joined:
    Dec 10, 2009
    Member:
    #27323
    Messages:
    41
    Gender:
    Male
    First Name:
    Paul
    indiana
    Vehicle:
    08 TRD Sport
    That I did.
     
  6. Feb 21, 2012 at 8:34 AM
    #106
    Torspd

    Torspd Tor-nication

    Joined:
    Sep 18, 2009
    Member:
    #22958
    Messages:
    5,954
    Gender:
    Male
    First Name:
    Tor
    Houston
    Vehicle:
    MMVI 4.4L 4x4 Access Cab
    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] ProEFI Pro128 EMS [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 170* T-stat mod [] APR Large Fuel Rail [] Aeromotive Stealth 340 LPH Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    There is no cam. I said cam gears. Our engines have 4 cams. The cam gears are specifically for the exhaust cams. It is the exhaust cam gears that replace the factory ones. They came with the APR X-1 kit.

    It seems you overlooked the point where I stated that it is an auto and can not be done any lower. The cam gear increase scavenging across the whole rpm range. Not just the upper. They allow a small overlap of the intake and exhaust cams to aid in intake air push combustion exhaust out. Thus improving efficiency, cooling the combustion chamber, and increasing power, by way of scavenging. If you want more info on how that works, best bet is to study up on different types of cams. If you want a simplified version, go here: www.aprpower.com

    The point of my reference was that not one part alone made his levels that high. They each contributed.

    How can you ask, "what does that have to do with a daily driver with a air cleaner and a muffler change,"? His vehicle is his daily driver. With a few extra bolt-ons.

    Did you even look where I directed you yet? I know you are curious. That is why i directed you to a source that has tons of data on you specific question.

    Increase efficiency increase power. Simple. Keep your foot out of it, and you will also increase gas mileage, if you want to.
     
  7. Feb 24, 2012 at 8:22 AM
    #107
    Robertgeejr1

    Robertgeejr1 Well-Known Member

    Joined:
    Dec 21, 2011
    Member:
    #69167
    Messages:
    774
    Gender:
    Male
    First Name:
    Robert
    Aorora, Ill, yeah!
    Vehicle:
    1996 Toyota Tacoma SR5 4x4
    I have done all the hi-pro mods for a life time, since I got this truck at a great price, I will be happy with showroom new.
    The build so far: ProEFI Pro128 EMS [] CP Pistons [] Pauter Rods [] Brain Crower Billet Knife Edged Crank [] ARP Head Studs [] Dual Valve Springs w/Ti Retainers [] Cometic Head Gaskets [] Aeromotive Stealth 340 LPH Fuel Pump [] Tomei Fuel Pressure Regulator [] Injector Dynamics 1000 cc Injectors [] Killer Glass Radiator Tube [] Top Fuel Oil Catch Can [] Torspd Custom Turbo Header [] Polydyn Ceramic Coated Header and Merge Collector [] Precision Turbo 6265 Journal Bearing [] TiAL BOV and Wastegate [] Greddy Profec B II Boost Controller [] Intake Manifold Spacer [] NST Waterpump Pulley [] Caltrac Traction Bars [] One Piece Driveshaft [] Tundra Racing 4x4 Rear Lowering Kit [] QA1 Adjustable Front Coilovers [] Spec Stage 3+ Clutch [] T56 Transmission in waiting as well as motor being sleeved by Darton. Last edited by Torspd; 02-21-2012 at 10:39 AM.


    I would listen to this fellow! This is someone who has done his homework, you don't see PaceSetter header here.
     
  8. May 21, 2012 at 9:37 AM
    #108
    blkbelt42

    blkbelt42 Well-Known Member

    Joined:
    Apr 9, 2011
    Member:
    #54635
    Messages:
    620
    Gender:
    Male
    Richmond, VA
    Vehicle:
    2011 4x4 TRD Sport w/TOW
    Tint, N-Fab bars, Volant CAI, Vent Visors, 18" Moto Wheels w/33" all terrains
    CAI & replace the muffler
     
  9. May 31, 2012 at 6:01 PM
    #109
    KaeserTRD

    KaeserTRD Member

    Joined:
    May 31, 2012
    Member:
    #79827
    Messages:
    15
    Gender:
    Male
    First Name:
    Kyle
    Loganville, GA
    Vehicle:
    03 2.7L PreRunner SR5 TRD
    Iconic step bars
    Put in a good muffler and a AFE filter. I really doubt you will notice much power from either, just better throttle response and a deeper tone.

    I would steer away from a cat-back on a N/A truck, the exhaust seems to be already pretty free flowing (except for the muffler). If you ever go supercharged or turbocharged then I would definitely go for a much larger exhaust.

    Here is my favorite muffler.....
    http://www.jegs.com/p/Hooker-Headers/Hooker-Headers-Aero-Chamber-Mufflers/744863/10002/-1

    I had them on two vehicles I owned in the past and my buddy put on on his V6 Ranger. Great tone, free flowing, and it will not cause drone on the highway.
     
  10. May 31, 2012 at 8:10 PM
    #110
    aptech

    aptech Jetfixer

    Joined:
    Apr 6, 2012
    Member:
    #76417
    Messages:
    3,187
    Gender:
    Male
    First Name:
    Adrian
    houston (angleton)
    Vehicle:
    10 dc offroad
    daystar level kit, tsb rear spring, ghostflames, sport hood, tsb steering, trd cai, red map lights. backup cam any time mod, fog light any time mod. bed light mod. 400watt inverter mod. 2857516 dura tracs. beach sand intsall
    yap best bang for the buck
     
  11. May 31, 2012 at 8:13 PM
    #111
    aptech

    aptech Jetfixer

    Joined:
    Apr 6, 2012
    Member:
    #76417
    Messages:
    3,187
    Gender:
    Male
    First Name:
    Adrian
    houston (angleton)
    Vehicle:
    10 dc offroad
    daystar level kit, tsb rear spring, ghostflames, sport hood, tsb steering, trd cai, red map lights. backup cam any time mod, fog light any time mod. bed light mod. 400watt inverter mod. 2857516 dura tracs. beach sand intsall
    the guy from urd had some pretty intresting dyno runs with all diiferent config. he stated that the secondary filter made absolutly no differance in or out it was the same hp either way. the only way to can hp would to change the box ie cai system.js
     
  12. Apr 21, 2013 at 10:50 PM
    #112
    tooter

    tooter play every day

    Joined:
    Apr 13, 2013
    Member:
    #102021
    Messages:
    2,391
    Gender:
    Male
    First Name:
    Greg
    Los Angeles
    Vehicle:
    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    In the Exhaust vs Cold Air Intake option, I chose neither and went with a header instead for more low rpm performance.
     
  13. Apr 28, 2013 at 6:04 PM
    #113
    Khaos

    Khaos Well-Known Member

    Joined:
    Feb 4, 2008
    Member:
    #4570
    Messages:
    6,506
    Gender:
    Male
    First Name:
    Bryant
    Tallahassee FL
    Vehicle:
    2005 Prerunner TRD Off Road
    265/75/16 BFG A/T, 18" Magnaflow, K&N Intake Filter, Ultra-Gauge, Kobalt Toolbox, Metal Tail Light Guards, Cobra 19 and 4ft fiberglass antenna, Plasti dipped Badges/lower valance/rear bumper/grill/bullbar/ac controls, black DIN kit, JVC KD-X40, Wet Suit Seat Covers
    I have a K&N intake filter and a Magnaflow muffler. Total cost for both parts was less than $100, I'm satisfied and my truck sounds great.
     
  14. Apr 28, 2013 at 10:55 PM
    #114
    tooter

    tooter play every day

    Joined:
    Apr 13, 2013
    Member:
    #102021
    Messages:
    2,391
    Gender:
    Male
    First Name:
    Greg
    Los Angeles
    Vehicle:
    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    I hear ya. :)
    After listening to the 2.7 muffler youtubes, I ordered a Magnaflow. Love that sound. ;)
     
  15. May 22, 2013 at 6:59 PM
    #115
    DSully72

    DSully72 Well-Known Member

    Joined:
    Jun 9, 2010
    Member:
    #38638
    Messages:
    1,618
    Gender:
    Male
    First Name:
    Daniel
    Norfolk, VA
    Vehicle:
    04 PreRunner TRD Off Road
    Bilstein 5100s with Eibach coils, 265/75R16 Goodyear Wrangler Duratracs, BAMF Rock Sliders, BAMF Behind Grill Light Bar w/ Hella 500's, Grillcraft MX Series Grill, Cobra CB w/ PA Speaker
    if you are going for sound, cant go wrong with magnaflow. the CAI is cool, but not for off road. I know yall 2nd gens cant do the deck plate mod, but I plan on taking out my CAI and doing the deck plate mod not too far down the road from now. is the TRD intake box water tight?
     
  16. Jun 9, 2013 at 9:41 AM
    #116
    tooter

    tooter play every day

    Joined:
    Apr 13, 2013
    Member:
    #102021
    Messages:
    2,391
    Gender:
    Male
    First Name:
    Greg
    Los Angeles
    Vehicle:
    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    That's the drawback with auto dyno runs. They're highly informative if you're racing, but totally useless for regular everyday drivers. I could drive for 6 months without ever coming close to 3,400 rpm. I'll be doing a baseline 2.7 dyno soon to compare changes from future mods, and it'll start at 1,500.
     
  17. Jun 9, 2013 at 1:17 PM
    #117
    Justus

    Justus fucks not given

    Joined:
    Jan 4, 2013
    Member:
    #94417
    Messages:
    7,471
    Gender:
    Male
    First Name:
    Brock
    Paso Robles
    Vehicle:
    not so low, not so slow 2006 6 lug
    stockish
    Define water tight


    1st response would be "no" due to it needing air

    Second response being, "no" due to bolts going through lid and bottom.

    "Resistant" would be closer, meaning its ok in rain.


    And what's wrong with an intake offroad?

    There's more than 1 type/brand of filter to use, plus prefilter socks
     
  18. Jun 12, 2013 at 12:26 AM
    #118
    NorthCountryEvo

    NorthCountryEvo Member

    Joined:
    Jun 11, 2013
    Member:
    #106104
    Messages:
    7
    Gender:
    Male
    Arizona
    Vehicle:
    '13 TRD Sport 4.0 V6
    So, what is the best options here not only for sound, but for fuel economy? Performance gains are great, but I'm curious as to what is going to boost the fuel econ the most as well
     
  19. Jun 12, 2013 at 12:34 AM
    #119
    Justus

    Justus fucks not given

    Joined:
    Jan 4, 2013
    Member:
    #94417
    Messages:
    7,471
    Gender:
    Male
    First Name:
    Brock
    Paso Robles
    Vehicle:
    not so low, not so slow 2006 6 lug
    stockish
    Fuel economy..... keep ur foot light.


    I get the same mpg now with blower, intake, headers, y pipe, 3" exhaust as I did without.
     
  20. Aug 1, 2013 at 10:36 AM
    #120
    MGMTacolover55

    MGMTacolover55 Well-Known Member

    Joined:
    Jan 31, 2013
    Member:
    #96545
    Messages:
    4,199
    Gender:
    Male
    Orygun
    Vehicle:
    2013 MGM Taco TRD Off Road
    floor Mats
    Can people stop reviving old threads already the guy chose already if you read it all and the op has not been on since November so let the thread fade away
     
To Top