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
    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, 09:04 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.
          signature

          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 pumppy10, 13 hours ago
                  4 responses
                  75 views
                  0 likes
                  Last Post Horsehammerr  
                  Started by Lazypup, 1 week ago
                  18 responses
                  171 views
                  0 likes
                  Last Post davej
                  by davej
                   
                  Started by zingpow, 4 weeks ago
                  51 responses
                  1,022 views
                  0 likes
                  Last Post zingpow
                  by zingpow
                   
                  Started by Scionreality, 20 hours ago
                  5 responses
                  62 views
                  0 likes
                  Last Post davej
                  by davej
                   
                  Started by Herrindude, 6 days ago
                  6 responses
                  94 views
                  0 likes
                  Last Post davej
                  by davej
                   
                  Started by tsimone98, 1 week ago
                  21 responses
                  218 views
                  0 likes
                  Last Post tsimone98  
                  Started by Lug Nut, 2 days ago
                  14 responses
                  189 views
                  0 likes
                  Last Post Lug Nut
                  by Lug Nut
                   
                  Started by Overkill jones, 08-25-2018, 09:02 PM
                  6 responses
                  193 views
                  0 likes
                  Last Post Doc_V
                  by Doc_V
                   
                  Started by AR. Hillbilly, 1 day ago
                  8 responses
                  117 views
                  2 likes
                  Last Post Doc_V
                  by Doc_V
                   
                  Started by ndfrspd1620, 14 hours ago
                  2 responses
                  34 views
                  0 likes
                  Last Post Doc_V
                  by Doc_V
                   
                  Started by midnitmike, 3 weeks ago
                  17 responses
                  152 views
                  1 like
                  Last Post backinthesaddleagain  
                  Started by roadiemort, 17 hours ago
                  25 responses
                  45 views
                  0 likes
                  Last Post roadiemort  
                  Started by cike, 3 weeks ago
                  37 responses
                  669 views
                  1 like
                  Last Post LDofDC
                  by LDofDC
                   
                  Started by AR. Hillbilly, 02-05-2019, 06:12 AM
                  17 responses
                  243 views
                  0 likes
                  Last Post AR. Hillbilly  
                  Started by John Lilley, 2 days ago
                  32 responses
                  211 views
                  0 likes
                  Last Post highvoltage  
                  Started by Weekender, 1 day ago
                  6 responses
                  103 views
                  0 likes
                  Last Post texasscott1  
                  Started by roxy1124, 04-30-2018, 08:45 PM
                  32 responses
                  588 views
                  0 likes
                  Last Post texasscott1  
                  Started by Jed Milhorne, 2 days ago
                  18 responses
                  160 views
                  0 likes
                  Last Post Bikerron  
                  Started by YZ18, 1 day ago
                  7 responses
                  134 views
                  3 likes
                  Last Post cike
                  by cike
                   
                  Working...
                  X