Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: 454 supecharger help
          
   
   

Reply To Thread
Results 1 to 11 of 11

Hybrid View

  1. #1
    71SS is offline Registered User Visit my Photo Gallery
    Join Date
    May 2006
    Location
    Ft Lauderdale
    Posts
    2

    454 supecharger help

     



    Hey guys,

    I’ve just bought a Vortech V-7 YSI kit.
    I have a 1971 Camaro with th400 and 3.73 gears.
    It’s a street/strip car with a BB 454 mark IV (2 bolt main) with main girdles, TRW forged pistons, GM steel forged crank and GM 7/16 "dimple rods" with ARP bolts, and it’s all std (approx 550hp). It has a Dart heads 320cc, 1.7 roller rockers, stud girdles,850cfm mighty demon carburetor, Victor Jr intake manifold, Competition Cam solid flat tappet (advertised duration 274/280, lift .568/.578, lobe 110), Patriot headers (2 in. primary tube diameter,.3.5 in. collector diameter), 3 in. exhaust system, MSD 6AL, MSD Probillet distributor and CSI electric water pump. The compression ratio is 9.5:1.

    I am looking for an honest 900 h.p. on pump gas (92/93 octane), want drivebility and reliability. I also have experience with modified engines, but NO Blower experience.

    Here are my questions:

    Considering the rods, pistons, crankshaft I don’t think the engine will handle more than 900hp, what do u guys think?
    My supercharger setup comes with a 5 pound pulley, so how much horsepower it will make? how much boost do I need to make 900hp and how much safe boost do you guys think i can run? With more than 6 pounds do I need a bypass valve and intercooler?

    Thank you

  2. #2
    Uptown83's Avatar
    Uptown83 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2004
    Location
    Las Cruces
    Car Year, Make, Model: 1933 3w Coupe, 1932 5w Coupe
    Posts
    98

    that supercharger isnt going to add 350 hp

  3. #3
    Uptown83's Avatar
    Uptown83 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2004
    Location
    Las Cruces
    Car Year, Make, Model: 1933 3w Coupe, 1932 5w Coupe
    Posts
    98

    now i dont have a vortec supercharger, but i do have a 6-71 blower on my engine, I havent dyno'd it yet we think im doing around 600hp with a 383 sbc. From what i have always heard that with a 6% under drive ( which is common for a 6-71 street blower setup ) that it will add around 100-150 hp. I couldnt imagine that vortec adding 350hp without running major boost, which I doubt you could run on pump gas. Also you think your 2bolt main will hold up to 900hp? I am a engine noob so we will see what others have to say.

  4. #4
    Uptown83's Avatar
    Uptown83 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2004
    Location
    Las Cruces
    Car Year, Make, Model: 1933 3w Coupe, 1932 5w Coupe
    Posts
    98

    oh also i get 3miles to the gallon right now.

  5. #5
    billlsbird is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2004
    Location
    Pahrump
    Car Year, Make, Model: '32 Ford 3 Window Coupe w/ 392 Hemi
    Posts
    916

    Quote Originally Posted by Uptown83
    oh also i get 3miles to the gallon right now.
    ....Yek's.... 3 miles to the gallon??? Makes me want a small motor in the '32 I'm having built.... zzz

  6. #6
    71SS is offline Registered User Visit my Photo Gallery
    Join Date
    May 2006
    Location
    Ft Lauderdale
    Posts
    2

    Yeah, I know that I will not make big power with 5 pounds on boost. The guy from supercharger store told that I need 10 pounds on boost to get 900 horses, but the thing is, Do you guys think that my engine will handle 900hp?

  7. #7
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Jul 2003
    Location
    Madison
    Car Year, Make, Model: '67 Ranchero, '57 Chevy, '82 Camaro,
    Posts
    21,160

    Doubt you will get 900 horse.... To even get close you would need the intercooler and a lot more boost then 5 pounds.
    Yesterday is history, tomorrow is a mystery, Live for Today!
    Carroll Shelby

    Learning must be difficult for those who already know it all!!!!

  8. #8
    Uptown83's Avatar
    Uptown83 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2004
    Location
    Las Cruces
    Car Year, Make, Model: 1933 3w Coupe, 1932 5w Coupe
    Posts
    98

    i doubt your engine would last long with 900hp. I think you would need to o-ring your block.

  9. #9
    techinspector1's Avatar
    techinspector1 is offline CHR Member Visit my Photo Gallery
    Join Date
    May 2003
    Location
    Zephyrhills, Florida, USA
    Car Year, Make, Model: '32 Henway
    Posts
    12,423

    At 9.5:1 c.r., you can only put 4 lbs of boost into the motor on pump gas. Any higher boost will require special fuel.
    PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.

  10. #10
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    hmmmmmmm 548 cid blown 10 mpg. 900 hp out of a stock two bolt block? NO. 700 hp yes and on the the Oring for 900 hp you do not need them the boost will have a bearing on this the 1017 felpros work good or the lsm gaskets

  11. #11
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    Quote Originally Posted by 71SS
    Hey guys,

    I’ve just bought a Vortech V-7 YSI kit.
    I have a 1971 Camaro with th400 and 3.73 gears.
    It’s a street/strip car with a BB 454 mark IV (2 bolt main) with main girdles, TRW forged pistons, GM steel forged crank and GM 7/16 "dimple rods" with ARP bolts, and it’s all std (approx 550hp). It has a Dart heads 320cc, 1.7 roller rockers, stud girdles,850cfm mighty demon carburetor, Victor Jr intake manifold, Competition Cam solid flat tappet (advertised duration 274/280, lift .568/.578, lobe 110), Patriot headers (2 in. primary tube diameter,.3.5 in. collector diameter), 3 in. exhaust system, MSD 6AL, MSD Probillet distributor and CSI electric water pump. The compression ratio is 9.5:1.

    I am looking for an honest 900 h.p. on pump gas (92/93 octane), want drivebility and reliability. I also have experience with modified engines, but NO Blower experience.

    Here are my questions:

    Considering the rods, pistons, crankshaft I don’t think the engine will handle more than 900hp, what do u guys think?
    My supercharger setup comes with a 5 pound pulley, so how much horsepower it will make? how much boost do I need to make 900hp and how much safe boost do you guys think i can run? With more than 6 pounds do I need a bypass valve and intercooler?

    Thank you
    headers are to small and the ex need to be bigger the cam i would run a roller a bit bigger maybe more lsa and yes a intercooler and more boost for 900 hp 9si or more?
    Last edited by pat mccarthy; 05-12-2006 at 06:53 PM.

Reply To Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink