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Thread: Imco Thumper Exhausts...?

  1. #1
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    Imco Thumper Exhausts...?

    Anybody ever tried these? Opinions, thoughts...?

    http://www.cpperformance.com/p-13908...t-bracket.aspx

  2. #2
    mrfixxall Guest

    fixx

    Same as emi's and revolution,just a little different design tho..

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    So for the price are they any good? SM are about $1000 more....

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    Hey.........

    Shouldnt you be fogducker IIII now......

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    mrfixxall Guest

    fixx

    From what i gather they make a good stock replacement system..With the pro charger pushing over 500 hp i don't think they will work for you,they may not be hard anodised like the emi's which yield emi's to closer to 700 hp.

    if you opt for the powerflow's i have a set of brand new risers ill give you a deal on..

    http://www.donzi.net/forums/showthread.php?t=61109

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    Quote Originally Posted by mike o View Post
    Shouldnt you be fogducker IIII now......
    My next Donzi will be Fogducker IV..............the Scarab is III 1/2.....

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    Quote Originally Posted by mrfixxall View Post
    From what i gather they make a good stock replacement system..With the pro charger pushing over 500 hp i don't think they will work for you,they may not be hard anodised like the emi's which yield emi's to closer to 700 hp.

    if you opt for the powerflow's i have a set of brand new risers ill give you a deal on..

    http://www.donzi.net/forums/showthread.php?t=61109
    There is an anodised option for the Imco Thumpers......will the Stainless Marine hold up any better? I liked the las set I had on the Scorpion but to be honest, I find them big bucks for what they are.....

    PS. Your risers would not fit, I need the shorties......

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    If you are running shorty risers, the Thumpers are a good bang for the buck. We have a set on the 16. It has a charmed life though. Maybe 20 hours a year now and in a fresh water lake.
    2001 35 Fountain Lightning w500 EFI's
    1973 X-18 - Merc 383 Magnum
    1974 Chris Craft Roamer with 1271 TI's

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    Quote Originally Posted by The Hedgehog View Post
    If you are running shorty risers, the Thumpers are a good bang for the buck. We have a set on the 16. It has a charmed life though. Maybe 20 hours a year now and in a fresh water lake.
    I hear ya, problem is, as Fix says, if I procharger this 454Mag they might not be the right thing...? Not sure if should bite the bullet and get EMI or Stainless Marine..? Both big bucks but I guess you get what you pay for...? Still need to find a Procharger...

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    escrow, or any promise of transaction protection/certification/guarantee. More info Procharger for Chevy 350 Model M-1SC - $2500 (DesPlanes)

    Date: 2010-08-29, 9:44AM CDT
    Reply to: sale-x8qce-1925326803@craigslist.org [Errors when replying to ads?]

    Supercharger for Chevy 350 w / Fuel Injection. While the bracket is for Chevy with another bracket you can use for different applications.

    CALL TOM AT 847-294-1195 TO SCHEDULE AN APPOINTMENT


    • Location: DesPlanes
    • it's NOT ok to contact this poster with services or other commercial interests


    PostingID: 1925326803

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    Jeremy, I have EMI headers with fusion coat on my 454. These were on the boat when I bought it. I really don't know how much HP they can handle, it is a stock EFI motor, but I can tell you that I have had zero problems with the headers. Even the fusion coat looks new and I am guessing that the headers are 6 years old.

    Ken

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    Thanks dsparis for that link, I will call the seller but it looks like they are serpintine pulleys and being for a 350 I would have to change a few things, but worth the call for sure.

    Chachi....I am leaning towards EMI....I found a local guy wno can get them, just need to work out a price....

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    I think SM are thouroughly and very well coated.
    I've seen some very attractive prices on some used SM sets on eBay.
    Also Gils.
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

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    No go on the Procharger, nothing would fit and he has "modified" the intercooler to fit a carb set-up....

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    Quote Originally Posted by fogducker III View Post
    No go on the Procharger, nothing would fit and he has "modified" the intercooler to fit a carb set-up....
    I would not worry about the cooler. That is an easy fix. All the brackets on the other hand, yikes. Any of the mentioned systems will work on a Procharged engine. I put Dana's on my blown 502 and picked up zero mph. It did drop one lb of boost due to better breathing and I got better throttle response. They were a good mod. You don't need much better exhaust until you start opening up the heads and adding cam.
    2001 35 Fountain Lightning w500 EFI's
    1973 X-18 - Merc 383 Magnum
    1974 Chris Craft Roamer with 1271 TI's

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