exhaust
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 14 of 15

Thread:
exhaust

  1. #1
    Cole SS cole ss's Avatar
    Join Date
    Oct 2008
    Location
    Rochester, wa.
    Posts
    139

    Default exhaust

    I have a stock 454 with the standard Hardin marine log style exhaust manifolds. I have the 2 7/8" exhaust tips. If I cut the flange of the riser off, I will be able to use 3 1/2" exhaust hose. I will also be able to use 3 1/2" SS exhaust tips. I can also use Imco 3 1/2" mini mufflers. I can also do the same thing in a 4" hose, SS tips, and mufflers. Which would you do? I can't afford headers. Has anyone done this before? Did you gain anymore performance? I know it would sure sound better. Is it worth the time and effort? Thanks Kimball

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member Marcsrollin's Avatar
    Join Date
    May 2008
    Location
    El Cajon , Ca
    Posts
    574

    Default

    $80 with free shipping!! 3 1/2 inch new!!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	tips 001.jpg 
Views:	68 
Size:	71.9 KB 
ID:	22907   Click image for larger version. 

Name:	tips 002.jpg 
Views:	71 
Size:	73.5 KB 
ID:	22908   Click image for larger version. 

Name:	tips 003.jpg 
Views:	60 
Size:	74.0 KB 
ID:	22909  
    No matter how good she looks , someone is tired of her shit!

  4. #3
    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
    Join Date
    Dec 2007
    Location
    Newton Ks.
    Posts
    6,834

    Default

    Take marc's, then buy a set of Lightning headers.

    I bought USED Lightnings, and those tips, and found 50HP/200RPM, but my cam and intake were no longer stock already.
    "As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron."
    H.L. Mencken

    OBAMA: Some people deserve this.
    The rest of us are being dragged along kicking and screaming.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Junior Member Old Guy's Avatar
    Join Date
    Jan 2008
    Location
    SW Michigan
    Posts
    20

    Default

    Quote Originally Posted by cole ss View Post
    I have a stock 454 with the standard Hardin marine log style exhaust manifolds. I have the 2 7/8" exhaust tips. If I cut the flange of the riser off, I will be able to use 3 1/2" exhaust hose. I will also be able to use 3 1/2" SS exhaust tips. I can also use Imco 3 1/2" mini mufflers. I can also do the same thing in a 4" hose, SS tips, and mufflers. Which would you do? I can't afford headers. Has anyone done this before? Did you gain anymore performance? I know it would sure sound better. Is it worth the time and effort? Thanks Kimball
    It's hard to see but I cut the ends off my snails so that I can use 3 1/2" hose. The tips have 3 1/2" in and 4" out with mufflers. Don't know if I gained anything....it just seemed like a good thing to do. All of the inside passages are 3" so I figured that I might gain a bit.





    I have a friend with a Dyno. We spent a lot of time and $$$ trying to find a way to compensate for the log exhaust system. You can't. I can supply all the details if you want them.

  7. #5
    Banned
    Join Date
    Jan 2008
    Location
    El Cajon, CA.
    Posts
    3,605

    Default

    Quote Originally Posted by Marcsrollin View Post
    $80 with free shipping!! 3 1/2 inch new!!
    I saw these yesterday in person and they are waaaayyyyy better than the pics show, they are very very nice pieces!

  8. #6
    Cole SS cole ss's Avatar
    Join Date
    Oct 2008
    Location
    Rochester, wa.
    Posts
    139

    Default

    Hello, can you give me measurements of the tips? Inside, outside, and diameter of th flange. Thanks, Kimball

  9. #7
    Senior Member Marcsrollin's Avatar
    Join Date
    May 2008
    Location
    El Cajon , Ca
    Posts
    574

    Default

    Sure , but they area at home and I don't get off work till 7pm.
    No matter how good she looks , someone is tired of her shit!

  10. #8
    Driver 78CoLeBBF's Avatar
    Join Date
    Apr 2008
    Location
    Golden Shores,AZ
    Posts
    3,195

    Default

    when my cole was stocker i found 100 rpms with that trick
    Its a FORD thing chevy's arent quick enough to understand

  11. #9
    Cole SS cole ss's Avatar
    Join Date
    Oct 2008
    Location
    Rochester, wa.
    Posts
    139

    Default

    Thanks,did you go with 3 1/2" or 4"? Also did you us any kind of in line muffler? Kmball

  12. #10
    Senior Member Marcsrollin's Avatar
    Join Date
    May 2008
    Location
    El Cajon , Ca
    Posts
    574

    Default

    I am running 4 inch. And no I never used any kind of muffler. I'll be home in about 30 minutes , I'll get you the measurements then!
    No matter how good she looks , someone is tired of her shit!

  13. #11
    Boat Nut sleekcrafter's Avatar
    Join Date
    Dec 2007
    Location
    South Elgin, Il.
    Posts
    5,131

    Default

    My first boat I had logs, 3 inch riser discharges. I put in 4 inch REX tips with built in flappers. I bought 1/2 foot of 3" hose, 1/2 foot of 3 1/2" hose, and 3 foot of 4" hose. I cut the 1/2 foot hoses in half, making them 3" in length. I then slipped them inside on another, 3 1/2" inside the 4", and the 3" inside of the 3 1/2" hose. These were glued in place, so they stayed put. I was my poor boy 3" to 4" adapters. Can't say there was much performance gain, motor was dam healthy as it was. But it sure made it sound a lot better, and quite a bit louder. I could run any slip in muffler, or clamp on muffler I pleased, with the 4 " tips.

  14. #12
    Senior Member Marcsrollin's Avatar
    Join Date
    May 2008
    Location
    El Cajon , Ca
    Posts
    574

    Default

    Alright , the part that goes through and into the hull is 5 inches long. The top of the the cut chromed side is 5 1/4 and the under of the chromed side is 1 3/4. They also have the internal rubber flappers. These are new from CP performance and have never been used or installed in a boat!! They are 3 1/2 inch , and like Rod stated the pictures don't do them justice!
    No matter how good she looks , someone is tired of her shit!

  15. #13
    Gas Dock Greg 75 spectra v-drive's Avatar
    Join Date
    Jan 2008
    Location
    Agoura Hills
    Posts
    363

    Default

    Quote Originally Posted by cole ss View Post
    I have a stock 454 with the standard Hardin marine log style exhaust manifolds. I have the 2 7/8" exhaust tips. If I cut the flange of the riser off, I will be able to use 3 1/2" exhaust hose. I will also be able to use 3 1/2" SS exhaust tips. I can also use Imco 3 1/2" mini mufflers. I can also do the same thing in a 4" hose, SS tips, and mufflers. Which would you do? I can't afford headers. Has anyone done this before? Did you gain anymore performance? I know it would sure sound better. Is it worth the time and effort? Thanks Kimball
    I did that when I had the Olds, worth the time just for the sound IMHO

  16. #14
    Member 07liberator's Avatar
    Join Date
    May 2012
    Location
    Monroe, Ohio, United States
    Posts
    43

    Default Stlll have the tips

    Are the tips still available ,Jeff 513-307-3052

+ Reply to Thread
Page 1 of 2 1 2 LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in


Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95