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S/C exhaust

Discussion in 'Performance and Tuning' started by danusa, Jul 26, 2008.

  1. Jul 26, 2008 at 4:23 AM
    #1
    danusa

    danusa [OP] Well-Known Member

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    I want an S/C. TRD has dropped their price from 4,500 to 3,700.

    Hi Daniel. I think the TRD supercharger is a great idea to get more power from your Tacoma because it is warranteed by Toyota, and TRD makes good stuff. We can discuss it more when we install the gun rack. See you soon. Gary

    Hi Daniel. Here is the price on the supercharger install on your 2006 Tacoma. $5792.50 plus tax. We will require a credit card number to order the parts. Any questions e-mail me because that is the best way to get in touch with me today. Thanks Daniel. Gary
    what I`m thinking Gary.
    My Mom and my brother Ron just showed up for the EEA Fly in at Oshkosh.
    So I have a driver for my rotor cuff surge and colon cancer in Aug. The
    Sheriff`s Dept. offered to do it. But I get to save a favor. They do not
    think the way that I do. Favors should be repaid. And I do not have a good
    way to do that right now.
    What I have is the GR1 V6. I can still buy real gas. Only 93 but that beats
    replacing a fuel system .
    I am not going to outlive this 07 Taco.
    So, I can put money into it.
    Where I live, I don`t need cats. In fact they are a fire hazard. With the
    price of metal the cats sell. People actually steal them. 5.56 NATO is hard
    to come by commercially.
    So I`m thinking a TRD S/C will be nice for winter. TRD makes a good intake
    for that.
    Straight pipes bent forward of the rear wheels would be out of the way. That
    is how I have the Power Wagon set up. I put expansion chambers on the SS
    tubes, Kinda like glass packs without the glass. This is a 389 Hemi. And it
    is not too loud if you keep your foot out of the throttle.
    It does rumble. But you outdrive the sound at 55 mph.
    A wimpy 4 L should not be a problem. I would not mind hearing some feed
    back.
    So lets say I install the TRD S/C package.
    What would you boys recommend for duel exhausts?
    Flowmaster seems the most popular. TRD exhaust is not getting votes. Or
    should I disbelieve TRD on the exhaust manifold and just have a custom SS
    system made from the headers or cylinder heads back and all with no cats?
    There is a place that can do a SS custom exhaust here. I`ll only have to do
    it once.The platinum can help pay for it.
    Should I put in expansion chambers for some back pressure? The glass
    blows out of glass packs. Why bother at all?
     
  2. Jul 26, 2008 at 6:14 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    For the S/C, keep your front cats. You will need these so your ECU can give the propper mixture to the engine. If you want to ditch them, you will need to get an O2 simulator. BUT, You will then need to get some kind of piggy back calibrator for the fuel. The TRD S/C when programmed by the dealer runs great with perfect AFR's. A good exhaust would be a high flow 3" muffler and exhaust pipe. A custom 2.5" "Y" pipe. Back pressure is not an issue when S/C'ed.
     
  3. Jul 26, 2008 at 2:32 PM
    #3
    Brunes

    Brunes abides. Thor

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    And it's oh so wunderful!!
    +1 for keeping it simple- Chris's recommendation sounds great. If you start throwing stuff in there to simulate the O2 sensor and manually adjust the fuel mixture you are just adding pieces to tune and calibrate...and eventually fail.
     
  4. Jul 26, 2008 at 9:37 PM
    #4
    danusa

    danusa [OP] Well-Known Member

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    Thanks Cris.
    I got nothong from Exhaust Pros here.
    They did not even underdstand the concept of headers. Much less make me a pair.
    Calf. is the place to go.
    I`ll make some calls.
    Roger keep the frt. cats.
    I want the exhaust done before the S/C is flashed.
    Roger 3" SS pipe.
    Roger back pressure irrelevant.

     
  5. Jul 27, 2008 at 1:29 AM
    #5
    danusa

    danusa [OP] Well-Known Member

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    What are perfect AFR`s?
     
  6. Jul 27, 2008 at 4:47 AM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    Air/Fuel Ratio's
    Very important when boosted. The dyno runs I have seen with the TRD charger have shown AFR's in the 12.0 - 12.2 range which is VERY good. No reason to mess with it, just make sure you keep your O2 sensors.
     
  7. Jul 27, 2008 at 8:45 AM
    #7
    danusa

    danusa [OP] Well-Known Member

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    Thanks Chris.
     
  8. Jul 27, 2008 at 3:04 PM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    No problem! :)
     
  9. Jul 28, 2008 at 6:56 AM
    #9
    danusa

    danusa [OP] Well-Known Member

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    OK Chris how should I do this? I was thinking headers and exhaust first. And then the TRD S/C. And do the flash with everything in place.
    Dealer will not mess with headers or exhaust.
    TRD claims that their manifold is as good as headers. This defies the laws of physics.
     
  10. Jul 28, 2008 at 6:29 PM
    #10
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    It doesnt defy any physics laws. The Toyota exhaust is tuned to the engine. It is designed to maximize scavenging through out the entire rpm band, with performance and efficiency in mind. Anytime you do something to an exhaust system, i.e. change the headers, pipe dia., etc., you alter the flow of the exhaust. When the piston pushes the exhaust out of the combustion chamber, it is a "pulse". As this "pulse" leaves and travels into and thru the header, the exhaust valve remains open for a little bit, useing the negative pressure behind the "pulse" to help draw in more air into the combustion chamber as the intake valve opens, thus increaseing h.p. and efficiency. Any change to the system has an effect on the exhaust pulses. Many people belive that when they install a new header, that they automatically get more h.p. accross the board. This is not often the case. If you look at dyno charts that show a claimed increase in h.p., notice that the rpm usually starts at around 3000 rpm. This is because they dont want to show you that their super h.p. headers LOST you 10+ h.p. before 3000 rpm, and gained only 8 h.p. on the top 2500 rpm. Intakes work the same way. Air flowing thru the intake has MASS. As its moveing into a cylynder, and the valve closes, it comes to an abrupt stop, sending a pressure wave back and INTO another cylinder helping to fill it. Its actually quite the mechanical Ballet. I digress. The Stock headers are quite good and flow well. Are they perfect? No. If I were you, get some "Shorty" headers. Whatever ones they are that let you keep the front cats. It wont matter if you get the Supercharger first, or do the exhaust first. The new programming that the dealer does is a new MAP for the ECU. Its the same MAP for all supercharged trucks, with or without intake/exhaust mods. Whew. I hope I answered your question. :eek:
     
  11. Jul 28, 2008 at 6:38 PM
    #11
    Ridgerunner

    Ridgerunner Well-Known Member

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    2001 with; cat-back twin exhaust,elbow mod, Westin bullbar with Hella550's, Snugtop XTR camper shell, TRD off-road 2x4-black beauty.
    BRAVO Chris!!!:)
     
  12. Jul 29, 2008 at 12:29 AM
    #12
    danusa

    danusa [OP] Well-Known Member

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    I should be in the EAA Convention now.
    I ordered the DT long tube headers from Gadget 3 at URD. A ret. Dick and SWAT. and owner.
    TRD is probably right.
    Yet the low end power will be there with the TRD S/C and it will rumble immpressively for a 4.0L.
    I was thinking 3" straight pipes. Bent either in front or behind the rear tyres.
    If that is too loud, I can put glass packs in there.
     
  13. Jul 29, 2008 at 12:36 AM
    #13
    danusa

    danusa [OP] Well-Known Member

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    OK, I understand the MAP flash, sorta.
    But even TRD recommends better exhaust.


    Thank you for your interest in TRD. For more low end torque, we recommend the TRD supercharger for the Toyota 4.0L engine, Toyota/TRD part numbers PTR29-35070, main assembly, and PTR29-35072, Tacoma fit kit. Horsepower gain is 304 SAE hp @ 5400 rpm and Torque gain is 334 SAE ft/lbs @ 3600 rpm. In addition to the supercharger, we recommend the TRD cat-back exhaust system, Toyota/TRD part number PT910-89061. Horsepower gain from the exhaust is 8 to 10 hp. For your reference, the TRD cold air intake or any other intake system isn't compatible with the TRD supercharger. For pricing an availability, contact your local dealer.

    I have seen TRD`s price drop from 4500 to 3700 and now 3200.
    I only know of one place to buy the fuel you need.
     
  14. Jul 29, 2008 at 3:26 AM
    #14
    danusa

    danusa [OP] Well-Known Member

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    Thanks for your well thought out reply Chris.
     
  15. Jul 29, 2008 at 6:57 PM
    #15
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    Your welcome, Dan. I noticed in your other post you are going with the DT long tube headers? Gaget is VERY knowlegable in Forced induction, but Im not sure how the TRD Supercharger and new MAP is going to behave getting a "Fake" signal from the O2 Simulator. Keep me posted as to how this works for you.
     
  16. Jul 30, 2008 at 12:53 AM
    #16
    danusa

    danusa [OP] Well-Known Member

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    Darn, I thought that I had this known.
    Gadget is a cop, a hunter and a pilot.
    I got the proffessional courtesy discount on the DT long headers.
    I would do the same for him.
    I`ll let my A&P figure out what to do with the parts.
    As you said, the TRD S/C and exhaust are not related.
    I just need to schedual this S/C inbetween a couple of VA surges.
    It is a bitch to have your old combat wounds catch up to you. The Purple Hearts from a gratefull nation are neither credible nor much comfort.
    Mom and my bro. Ron are at Oshkosh.
    Due to the analgesic I can`t drive home.
    I gave them my cell phone and only asked they leave a msg. No joy.

    Cherokee.jpg
     
  17. Aug 1, 2008 at 8:31 PM
    #17
    Super Werty

    Super Werty Sleeper 4x4

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    air and fuel
    This is not true..

    I know about 20 people now with the TRD bower and every single person has had some crazy AFR after the trd reflash. It is "supposed to be" 11.0 under WOT (wide open throttle), but most have been lean (east coast people) and all the Arizona people, where Im from, have been rich. Im currently 10.0 AFR

    You dont necessarily need a piggy back ecu. For example, I dont.

    Right now I have K&N intake, TRD blower, Long tube headers, and URD 3" exhaust. Another guy on the east coast with the exact same set up was high 13's afr and almost blew up. He needed the piggy back ecu, a walbro fuel pump and a 7th injector just to get it to the 11's.

    So in some cases, mods such as long tube headers and intake are beneficial to the AFR when boosted, and other times it messes the AFR even more.

    But my main point is the TRD reflash is NOT perfect at all

    If you have more questions, just ask.

    btw, heres my cardomain..

    http://www.cardomain.com/ride/2926302
     
  18. Aug 2, 2008 at 4:52 AM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    All the dyno runs I have seen for it show very good AFR's. But, they had stock headers. Do you think the other AFR's are a mess because they are running an O2 sim? I havent heard of a 7th injector for the 4.0's.

    Oh, Welcome to TW!
     
  19. Aug 2, 2008 at 5:04 AM
    #19
    Ridingontrd

    Ridingontrd Well-Known Member

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    Pretty strong for a first post.:D Where ya been??:laugh: Welcome to TW.
     
  20. Aug 2, 2008 at 5:39 AM
    #20
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    Agreed! :)
    He could have just said that he has seen instances in which the re-flash has been off. Instead of saying "This is not true".
     
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