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Technical Injection

Discussion in 'The Hokey Ass Message Board' started by Liqu, Apr 12, 2016.

  1. Liqu
    Joined: Jun 17, 2013
    Posts: 8

    Liqu
    Member
    from Long Beach

    Hi guys I need help (I'm lost), I'm building a 234" Spitzer rear engine dragster (Super Comp) it has a 4.30 gear , 33" tall tire, Powerglide, 7" converter, the Engine is a Y Block Ford (don't laugh) 3.810 Bore, 3.60 Stroke, 13.47 Comp, 280 deg cam @ 50, .560 lift, heads flow about 240 @ 28" of water @ 5.50 lift, the intake is a tunnel ram (homemade) with a Hilborn 4 port on top (3") the pump is a
    DSR .0 , I want to run Alcohol (I hope), I have a hilborn barrel valve (54 Spool) and a hilborn dist block, I have Enderle jets and bodies that I would like to use (#20), I don't have any idea what combo of jets or pills to start with, I'm not even sure if I plumbed it right, do you know who or what book can give me a start? the last injection I ever tuned was a Algon (long time ago).

    Thanks Cliff
     
  2. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 3,388

    19Eddy30
    Member
    from VA

    Go to RaceCarBook.com
    Bob Szabo. OR
    Call Enderle ask for Jim ,If he has not retired ,
     
    Last edited: Apr 12, 2016
  3. y'sguy
    Joined: Feb 25, 2008
    Posts: 781

    y'sguy
    Member
    from Tulsa, OK

    Sounds cool! Got any pictures. I like Yblocks, I like injected ones even better.
     
  4. 31 Coupe
    Joined: Feb 25, 2008
    Posts: 500

    31 Coupe
    Member


    Hi Cliff,
    Can I suggest that you visit either Jim at Enderle or Randy at Good Vibrations, they will both offer you the closest methanol starting off combination. You will probably be better off with a new Enderle (80A) pump because the pump is the heart of injection and without a sound pump you'll be chasing your tail forever. Nozzles and pill will be sized by the pump and HP output etc, you will probably need a high speed too because the Y block heads flow won't keep up with the pump volume ramp, again trial and error will sort that out, methanol is reasonably forgiving.
    I also believe that the 7" converter is too small for a Y block combo, you will need a converter that will flash to ~ 200 rpm above your torque peak but also be starting to lockup through the lights. A 7" will typically flash 6500 to 7500 and not start to lockup until 8500+ depending on the engine combo. Again the converter is specific to the engine dynamics.
    There are formula's (online) to assess rear gear ratios but you will need HP and RPM details to figure that effectively.
    Good luck, don't be dismayed with injection technicalities, it is a really simple system and very consistent once sorted.
    PM me if I can be of any help.
     
  5. miker98038
    Joined: Jan 24, 2011
    Posts: 1,512

    miker98038
    ALLIANCE MEMBER

    I'm not laughing, I've got a 340 ( bored and stroked 312 Merc) F code in my roadster. "The last injection I ever tuned was an Algon". Holy shit, this is probably the only site anyone even knows what that was. Good luck, keep us informed.
     
  6. jimmy six
    Joined: Mar 21, 2006
    Posts: 16,671

    jimmy six
    ALLIANCE MEMBER

    Where are your nozzles located? Low is good on alky.
    The starting point nozzle for a gasoline is .021". I have a chart showing the area in square inches of small holes but can't find it. You need to double the area for alky over gasoline. .042" is not it. Might be near .028 or .029" for doubling the area. Bypass should be something between .090 and .110 and fine tune from there for top end. High speed lean out is up to you. Use a cold spark plug. 7-10% leakdown on your barrel valve will get you started and you can adjust it for throttle response. Alky runs good or has least for me a little fat. It will also run cold and engine heat up can be a bitch..... Good luck and yes please show us some photos... I'm a yblock guy too.
     
  7. jimmy six
    Joined: Mar 21, 2006
    Posts: 16,671

    jimmy six
    ALLIANCE MEMBER

    Alliance. I've got 2 Algon FI's with Cherry-Berell (sp) pumps and adjustable bypasses for stock head GMC's... Guess I'm a dynosour.
     
  8. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,798

    drtrcrV-8
    Member

    So what's wrong with Algons!! The name cast on the body doesn't matter because ALL non electronic injectors tune by the same basic rules!! I know, I know : the pumps are different : so what! Learn how to use what you've got, or buy a "modern" pump if you want, but they aren't that hard if you get a manual from Enderle or Hilborn. If you get stumped, try asking for advice from a local Sprint Car engine person.
     
  9. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    Im about 10 minutes from you in Gardena, give me a call 310-768-3163
     
  10. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    Plenty of fuel system experts around (I use Gorr) for a reasonable fee will put your injection and pump on a flow bench and sort it out for you. They will list a series of corrected altitudes and the corrosponding main jet sizes that you will need. Since this is a SC dragster, tuning for ultimate power is not needed as you will have to adjust the car/engine to hit the index and can run it on the safe side.
     
  11. Liqu
    Joined: Jun 17, 2013
    Posts: 8

    Liqu
    Member
    from Long Beach

    Hi, I have not mounted the nozzles yet, my thought is to mount them low in the runner, my dist. block will mounted in the valley, my pump and all related parts have only dyno time on E85 , the reason I want to run Alcohol is that I know I will be down on power and am looking for all that I can get, I have built motors for a long time but not injection, I have a high speed lean out (don't know how to use it). The engine a steel crank (stroked, heat treated), carrillo rods, Roll Master timing set, ATI Damper, Trend Tool Steel Lifters, all good valve train, 180 lbs on the seat, Ross Pistons.

    Thanks Cliff
     
  12. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    From our conversation , Realize that Hilborn will not have the Enderle nozzles if those need to be changed for the size you have now if you went to them to have the system flowed
     

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