horsepower/ torque numbers?
+ Reply to Thread
Results 1 to 7 of 7

Thread:
horsepower/ torque numbers?

  1. #1
    Aquacraft Eddie's Avatar
    Join Date
    Mar 2008
    Location
    El Paso TX.
    Posts
    666

    Default horsepower/ torque numbers?

    I'm wondering if anyone can give me a rough estimate on my horsepower/torque numbers? I never really thought about it until a friend asked me about how much power my motor is making and I really have no idea,,,here goes its a 454 .030 over standard deck height not decked, with 781 heads (no head work other than milled just for clean up) I cc'd the heads myself and they were between 121.5-122cc, motor has small domed pistons( speed pro h693cp , -22.0cc) giving around 9.28:1- 9.32:1 comp. and the cam is a lunati voodoo 262 grind, 220 in. 227 ex @ .050 , 112 lobe separation,,,,,38.0 abdc ,,,I had figured the compr and dynamic compression a long time ago and don't remember and don't really have time to do it again but I believe the dynamic was around 7.86:1 ? I figured the dynamic out because its not a big cam and didn't want detonation and wanted to run regular gas,, it has an edelbrock airgap intake and a holley marine 800 dp . I know 9.28-9.32 static comp is not a lot but I put a kinda small cam in and I know that usually when you go up on compr usually cam size goes up as well. thanks and sorry if I left anything out....

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Aquacraft Eddie's Avatar
    Join Date
    Mar 2008
    Location
    El Paso TX.
    Posts
    666

    Default

    I also had one more question, I was told to run a ngk 7, I was running a yr5 and before that it was acdelco r45ts, just wondering if a 7 sounds right? I was thinking ore like a 6 but I put the 7's in just haven't ran it yet, the yr5 looked a little hot,,,im just using this for skiing so the rpms aren't that high and I'm doing more pulling tubes and skis than anything....I was hoping my motor might have 400hp but not really sure maybe 350-375?..

  4. #3
    Or Seth, either one Budweiser's Avatar
    Join Date
    Dec 2007
    Location
    Tower Park Resort, Lodi, CA
    Posts
    3,270

    Default

    If it's a jet boat, you can get a close approximation by referencing the impeller chart. Otherwise, my WAG is 400-450 neighborhood... shooting from the hip.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Aquacraft Eddie's Avatar
    Join Date
    Mar 2008
    Location
    El Paso TX.
    Posts
    666

    Default

    Quote Originally Posted by Budweiser View Post
    If it's a jet boat, you can get a close approximation by referencing the impeller chart. Otherwise, my WAG is 400-450 neighborhood... shooting from the hip.
    Thanks Budweiser! appreciate it ,,,,I was hoping for 400hp if its more even better!,,,,,,also its a v-drive not a jet,,,
    Last edited by Eddie; 12-09-2017 at 07:54 AM.

  7. #5
    Some guy obnoxious001's Avatar
    Join Date
    Dec 2007
    Posts
    3,568

    Default

    NGK 7 is correct, seems like I may have told you that before, not sure why you are second guessing once they are in the engine. Go run them and see what the look like, heat range shows on the ground strap.

    Boats get run harder than cars, and are under constant load, so colder than stock makes sense.
    Last edited by obnoxious001; 12-09-2017 at 09:54 AM.

  8. #6
    Aquacraft Eddie's Avatar
    Join Date
    Mar 2008
    Location
    El Paso TX.
    Posts
    666

    Default

    Quote Originally Posted by obnoxious001 View Post
    NGK 7 is correct, seems like I may have told you that before, not sure why you are second guessing once they are in the engine. Go run them and see what the look like, heat range shows on the ground strap.

    Boats get run harder than cars, and are under constant load, so colder than stock makes sense.
    Sorry obnoxious not second guessing , I couldn't remember if I put the right ones in, I couldn't find the thread where I asked,, I just saw them and was wondering if those where right or not, and I did remember someone saying 7's but wasn't sure if I had explained I'm not hauling ass just pulling tubes so I started thinking since the rpms weren't that high maybe those could be to cold,,,i wont know till summer also those 7's have a really short porcelain area where the boot fits on, is there a 7 that has a longer area where the plug boot snaps on? wondering because I noticed the boot is real close to the header flange now, I'm running glenwood water cooled headers and was worried about the boot being to close and maybe burning or melting but not sure if it even gets that hot. ill try to post a pic...

  9. #7
    Aquacraft Eddie's Avatar
    Join Date
    Mar 2008
    Location
    El Paso TX.
    Posts
    666

    Default

    For some reason I can only send pics from my phone anyway I was wondering if the boot might be to close to the header flange or am I just being to anal ?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	86090815-6333-434A-BFAB-EBF00D111939_1512844393417.jpg 
Views:	15 
Size:	10.0 KB 
ID:	1001250  

+ Reply to Thread

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