Register now to get rid of these ads!
  1. NEW MERCH!!!!!!

    Hey guys... It's that time of the year again and we are introducing some new shirts in the Jalopy Journal store - including our first ever pocket shirt! So, if you are in the need for some new threads go here:
    The Jalopy Journal Store
    Dismiss Notice

Technical 393 Windsor carb size

Discussion in 'Traditional Hot Rods' started by rocketsled59, Oct 2, 2017.

  1. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    Check with Hedman
     
    rocketsled59 likes this.
  2. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Have not had time to contact hedman but I used an online calculator to size my header requirements. Says 1.77 dia 35.97 length primaries with 3.09 collectors. 1 3/4" sounds about right by t would like to allow for future upgrades like cam and heads. Should I just build 1 7/8" or will it hurt my current combination? Can't afford to do everything at once
     
  3. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    I would try and get to the track with some tune up parts and some good help and see whats going on with your current package and work forward from there.
    Then if you find that it is just a wrong setup be it headers or what ever... then you can make a plan for your expectation.
    And we all know that drill..... gears.... heads...intake...cam....carbs....and on and on. :)
     
    rocketsled59 likes this.
  4. southcross2631
    Joined: Jan 20, 2013
    Posts: 2,183

    southcross2631
    Member

    The 1 7/8 will not hurt your combo. you may lose a little bottom end torque, but middle to top end will be fine.
     
    rocketsled59 likes this.
  5. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Haven't had a chance to contact hedman but I did use a calculator online to size my primary tubes. With my current combination it says I need 1.77 primaries 35.97 long and 3.09 collectors 1 3/4" sounds pretty close but if I want to do a cam change and possibly heads in future would I be better off doing 1 7/8"? Will that hurt my performance by going too big? Can't afford to do everything at once but still trying to plan for future upgrades.
     
  6. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Not sure how my post ended up out of order.
     
  7. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Well i think I've decided to go 950cfm. Quick fuel brawler race carb. Opinions?
     
    Gammz likes this.
  8. Gammz
    Joined: May 10, 2015
    Posts: 608

    Gammz
    Member
    from Lincoln Ne

    I would like to know more about them as well. The price seems fair. Every thing is owned by Holley. Like Walmart owns the world......


    Sent from my iPhone using The H.A.M.B. mobile app
     
    rocketsled59 likes this.
  9. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    Are you upgrading the heads?
    How large are the intake runners?


    I have heard good things about Quick Fuel but have not had my hands on any yet.
    Maybe next year if I can get a bottom end together.....I am asking Santa for a pair of 750 Q series.
     
    Gammz and rocketsled59 like this.
  10. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    I have a quick fuel ss 750 double pump now. It's a great carb. Nice features. My nephews buying it for his 357. You'll be happy with qf. I'd look into the brawlers before I popped for q series. There's a comparison on you tube. Brawler q series and track warrior on a 427 sbf
     
    Gammz likes this.
  11. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Oh yeah. I plan to upgrade heads as soon as I can afford it. 190cc runners. Want something closer to 205 210. Keep thinking bout those ported pro comps off gabes falcon. Hate to get pro comps again but they've been ported and set up and proven to make power.
     
    Gammz likes this.
  12. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    Guess that would depend on the price point.
    Be hard to get a out of the box head to work to it best without working on it.
     
    rocketsled59 and Gammz like this.
  13. Gammz
    Joined: May 10, 2015
    Posts: 608

    Gammz
    Member
    from Lincoln Ne

    I have heard good things about Quick Fuel but have not had my hands on any yet.
    Maybe next year if I can get a bottom end together.....I am asking Santa for a pair of 750 Q series.[/QUOTE]

    Show off......


    Sent from my iPhone using The H.A.M.B. mobile app
     
    rocketsled59 and saltflats like this.
  14. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    Aaron did you catch the (if) word?
     
    rocketsled59 and Gammz like this.
  15. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

  16. RmK57
    Joined: Dec 31, 2008
    Posts: 528

    RmK57
    Member

    A Holley 830 hp with annular boosters would make a nice choice to.

    I'm looking for a 950 hp for my 502 BBF. Supposed to be a great carb for a lot of combinations.
     
    rocketsled59, Gammz and saltflats like this.
  17. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    saltflats likes this.
  18. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    Send your intake with the heads to the guy with the flow bench.
     
  19. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Yeah. We have a local race engine guy here that has a flow bench. My concern is my runners are too small to start with​
     
  20. ilovemycar1958
    Joined: Nov 24, 2017
    Posts: 13

    ilovemycar1958

    on my 402w street car I run the AFR 205 heads. vic jr manifold with a good Hr cam 240 248 over 600 lift. 950 carb def. 750 was way to small.. dyno don't lie.. I made 560 with 536 torque. all under 6000 rpms..
     
    rocketsled59 likes this.
  21. ilovemycar1958
    Joined: Nov 24, 2017
    Posts: 13

    ilovemycar1958

    950 will be better..
     
    rocketsled59 likes this.
  22. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    It's on it's way. Along with stuff to build 1 7/8" headers
     
    Gammz likes this.
  23. RmK57
    Joined: Dec 31, 2008
    Posts: 528

    RmK57
    Member

    It would be interesting to see the quarter mile times that would be gained by going from 750 to 950.
    My guess would be maybe a 1/10 at best 2/10's, maybe nothing. Dyno's aren't the whole story.
     
    Last edited: Nov 24, 2017
  24. ilovemycar1958
    Joined: Nov 24, 2017
    Posts: 13

    ilovemycar1958

    all I know is my 402w didn't like the 750. the 950 cfm carb woke this puppy up.. and timing was at 32..
     
    rocketsled59 and Gammz like this.
  25. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Im hoping for more than that
     
    Gammz likes this.
  26. pigfluxer
    Joined: Feb 15, 2006
    Posts: 176

    pigfluxer
    Member

    Call Jimmy Huff,see what he thinks
     
  27. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Talked to local engine builder. Wants to look my heads over. Flow them. See if he thinks they're worth doing some work on.
     
    saltflats and Gammz like this.
  28. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    IMG_0846.JPG It's a good day. My sons temp disability has been approved! And I got this! It's a damn good day
     
    Runnin shine, saltflats and Gammz like this.
  29. saltflats
    Joined: Aug 14, 2007
    Posts: 7,849

    saltflats
    Member
    from Missouri

    Good news!!!
     
    rocketsled59 likes this.
  30. rocketsled59
    Joined: Mar 14, 2010
    Posts: 568

    rocketsled59
    Member

    Yes it is. His surgery is done and has 6 treatments left. And some money coming in.
     
    saltflats likes this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2013 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.