Announcement

Collapse
No announcement yet.

AIS Removal, New Baffles and PCV Filter

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • AIS Removal, New Baffles and PCV Filter

    Hi All,

    Been on the forum for a little over a month (same time for the “new to me” bike). The help from all the members has been Great! I have the Cobra long shots with the stock baffles and it was quite loud as well as massive backfiring on deceleration. Quite annoying as you might imagine. I ordered the Baron AIS removal kit, Cobra “quite core” baffles and a external filter for the PVC from Denis Kirk. Cudos to DK for having everything in stock, at a good price and fairly quick free shipping (must be approx. $90 total for the shipping). I, in my unbridled enthusiasm, assumed the baffles would be a quick swap out... HA! LOL After stripping the bolts that attached the baffles, taking the entire exhaust system off, drilling out the offending screws and renting a slide hammer from the local auto parts store, baffles were out! New baffles went in smoothly. Followed the Barons instructions (sparce at best, no pictures either) and a few YouTube videos (no real good ones either) the AIS system was off and plugged. I made a bracket to mount the PCV filter where the AIS pump/filter was from a piece of 1/8” x 1” x1” aluminum angle from the local big box store, i prefer the orange store over the blue store for various reasons... So, after a test ride, the exhaust is quieter (not massively but is noticeable) and hardly any backfiring!!! That was worth the whole ordeal in and of itself. I’m assuming the AIS removal was the reason for the no backfiring but since i did the baffles at the same time it is unsure which change had the desired effect. Time will tell if the air filter will not become saturated with engine oil but if nothing else the external filter looks cool, see attached pics (not the best, sorry).

    Thanks again for everyone’s help
    AIS Shiz External PCV filter and bracket
    2012 Road Star Silverado S

  • #2
    The crankcase vent looks good there.
    Getting rid of the AIS, is what cured the backfiring.

    Revist the torque on the exhaust flange nuts on the cold motor, after a couple of hot and cold cycles. They tend to loosen a bit until they get settled.

    Comment


    • D-Fresh
      D-Fresh commented
      Editing a comment
      Didn’t realize the exhaust nuts would require a retorque, thanks for the tip!

  • #3
    Nice job, vent mount looks factory. Don't know if you're carb is still stock, but if you still have some backfiring on decal after all is done, assuming no exhaust leaks, you may need to richen up by dialing out the PMS a little.
    Last edited by Doc_V; 10-04-2018, 10:04 PM.

    Comment


    • D-Fresh
      D-Fresh commented
      Editing a comment
      Doc, the engine is a Fuelie. The BF is all but gone, may get a stray BF every once in a while but way, way better. Thanks

  • #4
    Fuelies, minus the AIS, and sporting loud pipes, burble while decelerating, more than anything.



    Comment


    • #5
      I have done all of these things to mine. The burble sound is correct, I like it. Every once in a while I still get a backfire through the intake at slow speeds in town.

      Comment


      • #6
        what gas additives can be used on my silverado xv-1700
        cleaning carb and fuel system??

        Comment


        • #7
          Originally posted by eardog2 View Post
          what gas additives can be used on my silverado xv-1700
          cleaning carb and fuel system??
          You need to start a new thread on this topic and not hojack this thread and the other one you did. Answers.....Seafoam, Techron Injector/carb cleaner, Chemtron B-12, Marvel Mystery Oil.

          “The West is the Best" - Jim Morrison

          Comment


          • #8
            Sorry, kind of thought somewhat relative but will new threat next time... Thanks :-)
            My xv-1700 is re jetted and Cobra piped..

            Comment


            • #9
              Originally posted by D-Fresh View Post
              Hi All,

              Been on the forum for a little over a month (same time for the “new to me” bike). The help from all the members has been Great! I have the Cobra long shots with the stock baffles and it was quite loud as well as massive backfiring on deceleration. Quite annoying as you might imagine. I ordered the Baron AIS removal kit, Cobra “quite core” baffles and a external filter for the PVC from Denis Kirk. Cudos to DK for having everything in stock, at a good price and fairly quick free shipping (must be approx. $90 total for the shipping). I, in my unbridled enthusiasm, assumed the baffles would be a quick swap out... HA! LOL After stripping the bolts that attached the baffles, taking the entire exhaust system off, drilling out the offending screws and renting a slide hammer from the local auto parts store, baffles were out! New baffles went in smoothly. Followed the Barons instructions (sparce at best, no pictures either) and a few YouTube videos (no real good ones either) the AIS system was off and plugged. I made a bracket to mount the PCV filter where the AIS pump/filter was from a piece of 1/8” x 1” x1” aluminum angle from the local big box store, i prefer the orange store over the blue store for various reasons... So, after a test ride, the exhaust is quieter (not massively but is noticeable) and hardly any backfiring!!! That was worth the whole ordeal in and of itself. I’m assuming the AIS removal was the reason for the no backfiring but since i did the baffles at the same time it is unsure which change had the desired effect. Time will tell if the air filter will not become saturated with engine oil but if nothing else the external filter looks cool, see attached pics (not the best, sorry).

              Thanks again for everyone’s help

              D-Fresh, I hear ya on that annoying BF. One of the 1st things I done after obtainin’ my Roadie back in April. Done research & completed the AIS delete as well by Barrons. As I mentioned in my thread bout the discrepancy I had at highway speeds (fixed now thanks to y’all on this forum by removin’ that daggone PC5), I too also have the Cobra Speedster Longshots. But I wanted more rumble & in the past on my last cruisers I made ‘lollipops’ to sit in my pipes. Made these in the metal shops at the units I was stationed last few years. But this time was lazy n’ just ordered BCT Big City Thunder Monster baffles n’ man, sounds so much better than the stock Cobra baffles.


              Comment


              • D-Fresh
                D-Fresh commented
                Editing a comment
                I'd never heard of BCT until i read your post. Looks like they make baffles for many different mfg's too. I'm curious to the sound/performance difference from the Cobra quiet cores to the monster baffles? You have any pics of what the monster baffles look like?

            • #10
              Here’s a pic brother from online. Just google search & visit the site. I believe this is the size I got. Fits the Cobras perfectly. Also, you get a t-shirt as well when ordering. It’s actually easy to make urself if ur good with metal working & welding, but I was lazy this time. Roughly with shipping came to a tad over $100.

              Comment


              • #11
                Looks (and probably sounds/performs) completely different! I think they were approx. $80? See attached. Would like to compare some day...
                2012 Road Star Silverado S

                Comment


                • #12
                  Yeah, they’re only like ~ 6in in length. The unique concept, tho, behind them is the incorporation of a stud with a welded washer on the end that sits on the inside baffle. What this washer is designed to do is provide needed back pressure throughout the power band while creating more rumble added to the sound. They also make similar ‘quiet’ core baffles such as what you described. Believe me, my Hawwwley buds notice a big difference in rumble, while maintaining that nice loud tone.

                  Comment

                  Latest Posts

                  Collapse

                  Topics Statistics Last Post
                  Started by brianmac, 3 days ago
                  3 responses
                  94 views
                  0 likes
                  Last Post Spydr
                  by Spydr
                   
                  Started by D-Fresh, 4 days ago
                  9 responses
                  158 views
                  0 likes
                  Last Post D-Fresh
                  by D-Fresh
                   
                  Started by roadiemort, 03-05-2018, 08:01 PM
                  2,507 responses
                  21,821 views
                  3 likes
                  Last Post roadiemort  
                  Started by Malleck, 18 hours ago
                  13 responses
                  111 views
                  0 likes
                  Last Post Doc_V
                  by Doc_V
                   
                  Started by Fat pete, 13 hours ago
                  7 responses
                  101 views
                  0 likes
                  Last Post Doc_V
                  by Doc_V
                   
                  Started by Greasybastard02, 1 week ago
                  36 responses
                  409 views
                  0 likes
                  Last Post TwinCreeks1600  
                  Started by Milkman, 21 hours ago
                  6 responses
                  75 views
                  0 likes
                  Last Post Shores
                  by Shores
                   
                  Started by zingpow, 5 days ago
                  23 responses
                  363 views
                  0 likes
                  Last Post zingpow
                  by zingpow
                   
                  Started by LDofDC, 3 days ago
                  7 responses
                  79 views
                  0 likes
                  Last Post KCpartsguy  
                  Started by Ftwbear, 2 days ago
                  6 responses
                  136 views
                  0 likes
                  Last Post Father Pobasturd  
                  Started by Kruzcontrol, 3 days ago
                  7 responses
                  102 views
                  0 likes
                  Last Post Penguin
                  by Penguin
                   
                  Started by brianmac, 1 week ago
                  45 responses
                  490 views
                  0 likes
                  Last Post Shores
                  by Shores
                   
                  Started by Kelly, 07-17-2018, 03:39 PM
                  42 responses
                  674 views
                  0 likes
                  Last Post Roadstar_Rob  
                  Started by Aussie John, 1 week ago
                  8 responses
                  162 views
                  0 likes
                  Last Post Aussie John  
                  Started by Mitch82, 1 week ago
                  8 responses
                  234 views
                  0 likes
                  Last Post RonK
                  by RonK
                   
                  Started by Rob in FL, 3 days ago
                  8 responses
                  125 views
                  0 likes
                  Last Post Duke
                  by Duke
                   
                  Started by NCB, 6 days ago
                  7 responses
                  150 views
                  0 likes
                  Last Post Jclevesque  
                  Started by Rob in FL, 1 week ago
                  23 responses
                  202 views
                  1 like
                  Last Post Rob in FL  
                  Started by LaBamba, 1 week ago
                  12 responses
                  251 views
                  0 likes
                  Last Post davej
                  by davej
                   
                  Started by Texas Jim, 5 days ago
                  18 responses
                  216 views
                  0 likes
                  Last Post Bikerron  
                  Working...
                  X