Dart 310 folow-up.
+ Reply to Thread
Page 1 of 5 1234 ... LastLast
Results 1 to 14 of 58

Thread:
Dart 310 folow-up.

  1. #1
    Foxwell Motorsports
    Join Date
    Dec 2007
    Location
    N/E Tennessee
    Posts
    12,323

    Default Dart 310 folow-up.

    Well the Dart heads are done and here are the results.

    Before:

    right/left ex

    .2 140 / 141 / 111
    .3 207 / 207 / 151
    .4 271 / 271 / 192
    .5 322 / 312 / 227
    .6 351 / 329 / 254
    .7 365 / 329 / 271
    .8 341 / 335 / 281

    Now:

    rh / lh / ex

    .2 166 / 165 / 117
    .3 216 / 214 / 165
    .4 281 / 279 / 193
    .5 328 / 312 / 235
    .6 356 / 336 / 258
    .7 365 / 353 / 278
    .8 365 / 360 / 288

    This was after quite a bit of work...far more work than I put into the AFR's and no where near the flow numbers. My goal was to balance the left/right imbalance, get the right port to not go backwards after .700, and pick up the low lift numbers...which I did, but interestingly enough, the .700 number on the right port didn't chcange one cfm. Given all the work I did, I would have expected to see some increase, but not this time. Still not bad numbers, but the AFR makes this dart head look silly with one tenth of the effort. Again, this was supposed to be a simple out-of-the-box, bolt-and-go set of heads that turned out needing a lot of work for mediocre results. I'm not bashing Dart, but AFR FTW on this one, big time.
    Last edited by steelcomp; 10-13-2011 at 07:52 AM.
    FOXWELL MOTORSPORTS
    STRAUB TECHNOLOGIES
    Performance Cylinder Head Specialties
    Custom Cams
    Complete Engines
    Retail/Wholesale Parts sales




    In the madness of this world, know the Peace of God.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    just a ski boat with bark Carnivalride's Avatar
    Join Date
    Jan 2008
    Location
    Derby, Kansas
    Posts
    2,626

    Thumbs up

    Thanks for the follow up Scott.

    Is there a reason why you and some manufacturers don't show flow at .100" lift? Do you have any pictures of them before and after?
    Quote Originally Posted by gn7 View Post
    Carnivalride, you really need to find some other hobby. You have no talent for this boat thing

  4. #3
    Senior Member EdonShano's Avatar
    Join Date
    Dec 2007
    Location
    Arroyo Grande
    Posts
    2,127

    Default

    Quote Originally Posted by steelcomp View Post
    Well the Dart heads are done and here are the results.

    Before:

    Left/right/ex

    .2 140 / 141 / 111
    .3 207 / 207 / 151
    .4 271 / 271 / 192
    .5 322 / 312 / 227
    .6 351 / 329 / 254
    .7 365 / 329 / 271
    .8 341 / 335 / 281

    Now:

    rh / lh / ex

    .2 166 / 165 / 117
    .3 216 / 214 / 165
    .4 281 / 279 / 193
    .5 328 / 312 / 235
    .6 356 / 336 / 258
    .7 365 / 353 / 278
    .8 365 / 360 / 288

    This was after quite a bit of work...far more work than I put into the AFR's and no where near the flow numbers. My goal was to balance the left/right imbalance, get the right port to not go backwards after .700, and pick up the low lift numbers...which I did, but interestingly enough, the .700 number on the right port didn't chcange one cfm. Given all the work I did, I would have expected to see some increase, but not this time. Still not bad numbers, but the AFR makes this dart head look silly with one tenth of the effort. Again, this was supposed to be a simple out-of-the-box, bolt-and-go set of heads that turned out needing a lot of work for mediocre results. I'm not bashing Dart, but AFR FTW on this one, big time.
    good job on the heads......
    Formally know as UNFORGIVEN...

  5. #4
    Senior Member Widetrack's Avatar
    Join Date
    Jan 2008
    Location
    Southwest corner AR
    Posts
    4,045

    Default

    Looks like it's time for me to get busy! Good numbers Steel!

    Do you have the AFR numbers somewhere and I missed them?
    Last edited by Widetrack; 10-13-2011 at 06:14 AM.


    SOMEONE SAID YOU CAN'T TAKE IT WITH YOU! SO,IM BURNING IT UP ONE GALLON AT A TIME!
    WT

    WFL Crew!!!

  6. #5
    just a ski boat with bark Carnivalride's Avatar
    Join Date
    Jan 2008
    Location
    Derby, Kansas
    Posts
    2,626

    Default

    Quote Originally Posted by Widetrack View Post
    Looks like it's time for me to get busy! Good numbers Steel!

    Do you have the AFR numbers somewhere and I missed them?
    Go to the dyno section and look for the AFR/Dart comparison it's on the first page post #14 had his final numbers.

    AFR/Dart flow comparison, real world, out-of-the-box.
    Last edited by Carnivalride; 10-13-2011 at 06:40 AM.
    Quote Originally Posted by gn7 View Post
    Carnivalride, you really need to find some other hobby. You have no talent for this boat thing

  7. #6
    Senior Member Widetrack's Avatar
    Join Date
    Jan 2008
    Location
    Southwest corner AR
    Posts
    4,045

    Default

    Quote Originally Posted by Carnivalride View Post
    Go to the dyno section and look for the AFR/Dart comparison it's on the first page post #14 had his final numbers.

    AFR/Dart flow comparison, real world, out-of-the-box.
    Thanks!


    SOMEONE SAID YOU CAN'T TAKE IT WITH YOU! SO,IM BURNING IT UP ONE GALLON AT A TIME!
    WT

    WFL Crew!!!

  8. #7
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,850

    Default

    another self promotional thread, part deux. The spam police will be here any minute to shut this thread down.
    Interesting info.Specially considering that Dart was suppose to have fixed much of the out of the box flow issues with the changes in the "Platinum" series
    Last edited by gn7; 10-13-2011 at 07:49 AM.
    LINK:GN-RACING.COM

    "there are too many pigs for the teats"
    Abraham Lincoln

  9. #8
    Distinguished Member David 519's Avatar
    Join Date
    Jan 2008
    Location
    NorCal
    Posts
    4,978

    Default

    Quote Originally Posted by gn7 View Post
    another self promotional thread, part deux.........
    Damn GN, that's harsh. He's really here to "help" people, not simply just to promote his business. So Steel, someone told me that you did the flow measurments for Dart's ads when you worked there. Is that right, inquiring minds want to know? Regardless, good job on the flow numbers, they should make a very nice little street/lake motor... Ya'll take care now.
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

  10. #9
    Senior Member tigertooth's Avatar
    Join Date
    Mar 2008
    Posts
    706

    Default

    Quote Originally Posted by steelcomp View Post
    Well the Dart heads are done and here are the results.

    Before:

    right/left ex

    .2 140 / 141 / 111
    .3 207 / 207 / 151
    .4 271 / 271 / 192
    .5 322 / 312 / 227
    .6 351 / 329 / 254
    .7 365 / 329 / 271
    .8 341 / 335 / 281

    Now:

    rh / lh / ex

    .2 166 / 165 / 117
    .3 216 / 214 / 165
    .4 281 / 279 / 193
    .5 328 / 312 / 235
    .6 356 / 336 / 258
    .7 365 / 353 / 278
    .8 365 / 360 / 288

    This was after quite a bit of work...far more work than I put into the AFR's and no where near the flow numbers. My goal was to balance the left/right imbalance, get the right port to not go backwards after .700, and pick up the low lift numbers...which I did, but interestingly enough, the .700 number on the right port didn't chcange one cfm. Given all the work I did, I would have expected to see some increase, but not this time. Still not bad numbers, but the AFR makes this dart head look silly with one tenth of the effort. Again, this was supposed to be a simple out-of-the-box, bolt-and-go set of heads that turned out needing a lot of work for mediocre results. I'm not bashing Dart, but AFR FTW on this one, big time.
    Interesting information Scott. just put a set of AFR 315 cnc combustion chamber heads on a customers 475. 13:1 with a decent looking bullet cam and a single dominator. looking forward to dynoing it as i had a similiar motor a few years ago with Brodix -2 cnc's to compare it too.

  11. #10
    Banned
    Join Date
    Sep 2010
    Posts
    15

    Default

    What size motor are these heads going on? Are they for a boat or a car?

  12. #11
    Senior Member
    Join Date
    Dec 2007
    Location
    Olympia, Washington
    Posts
    521

    Default

    The point was to try and even out the flow from right to left, what does it matter what size engine, or if auto or marine? Would you not want even flow between the heads, no matter what size engine or application it was going to be used in?eh

  13. #12
    Foxwell Motorsports
    Join Date
    Dec 2007
    Location
    N/E Tennessee
    Posts
    12,323

    Default

    Quote Originally Posted by tigertooth View Post
    Interesting information Scott. just put a set of AFR 315 cnc combustion chamber heads on a customers 475. 13:1 with a decent looking bullet cam and a single dominator. looking forward to dynoing it as i had a similiar motor a few years ago with Brodix -2 cnc's to compare it too.
    The AFR 315 is an excellent head, much better choice than the Brodix-2 CNC IMO. Maybe a tad big for most 475's, but with 13:1 I'm guessing you're looking for some pretty big power and going to turn it up a bit. That 315 will serve you well.
    FOXWELL MOTORSPORTS
    STRAUB TECHNOLOGIES
    Performance Cylinder Head Specialties
    Custom Cams
    Complete Engines
    Retail/Wholesale Parts sales




    In the madness of this world, know the Peace of God.

  14. #13
    Senior Member
    Join Date
    Dec 2007
    Location
    Green Bay Wi,USA
    Posts
    438

    Default

    Are the canfields going to resurface under a new name? I remember you seemed to like them.

  15. #14
    Foxwell Motorsports
    Join Date
    Dec 2007
    Location
    N/E Tennessee
    Posts
    12,323

    Default

    Quote Originally Posted by DEL51 View Post
    Are the canfields going to resurface under a new name? I remember you seemed to like them.
    At one time I thought so, but at this point I'm not sure what the deal is.
    FOXWELL MOTORSPORTS
    STRAUB TECHNOLOGIES
    Performance Cylinder Head Specialties
    Custom Cams
    Complete Engines
    Retail/Wholesale Parts sales




    In the madness of this world, know the Peace of God.

+ Reply to Thread
Page 1 of 5 1234 ... 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.
If you do not want to register, fill this field only and the name will be used as user name for your post.

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

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


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