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  • GtoGeoff's Avatar
    Yesterday, 09:08 PM
    bfhoon, You might be getting confused here. EH probably means 34* at wot. Say you do my test & you find that you get highest idle rpm ...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    Yesterday, 08:53 PM
    If you are tuning street engines that use a carb & a dist, then you don't know how to tune if you are not using VA. You don't seem to understand that...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    Yesterday, 08:42 PM
    GtoGeoff replied to a thread Engine oil in Holden V8's
    Here is a link to a comprehensive oil test, over 200 oils from memory. VR1 did very well. The pressure test is used. Also, the zinc myth gets a had...
    27 replies | 1225 view(s)
  • GtoGeoff's Avatar
    Yesterday, 08:38 PM
    EH179. I didn't mention the slight loss of oil pressure because I have never noticed any loss of oil pressure in the many sets I have converted....
    52 replies | 1080 view(s)
  • GtoGeoff's Avatar
    Yesterday, 08:21 PM
    bfhoon, To find optimum idle timing, read the last part of post #13.
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    Yesterday, 08:19 PM
    Casitron, No, MVA does NOT cause creep if it is set properly. That is the key to it. As I said in earlier post, people plug the vac hose in....&...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    Yesterday, 07:24 PM
    EH179, You are pretty close, you get half a cigar.... I am using locked timing, 35* & a sizeable cam. It idles better with the extra 13*...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    16-01-2019, 07:45 PM
    Immortality, No Vizard was NOT talking about SBC . This was in his Holley carb book. And the idle timing #s I quoted, 48* & 53*, were NOT Chev...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    16-01-2019, 07:35 PM
    GtoGeoff replied to a thread Engine oil in Holden V8's
    AED, Believe what you like. The Timken bearing load test is a test that tests one facet of an engine oil: the oil's load bearing capacity. It...
    27 replies | 1225 view(s)
  • GtoGeoff's Avatar
    16-01-2019, 07:28 PM
    You can make your own 'cool face' lifters from std lifters, solid and hyd, & save a heap of money. Been doing it for 30 yrs... Takes 20 min. ...
    52 replies | 1080 view(s)
  • GtoGeoff's Avatar
    15-01-2019, 08:04 PM
    GtoGeoff replied to a thread Engine oil in Holden V8's
    AED, The Timken OK load test has EVERYTHING to do with loading bearing capacity. It measures the load the oil will support before the oil...
    27 replies | 1225 view(s)
  • GtoGeoff's Avatar
    15-01-2019, 07:41 PM
    You see, you are not understanding the relationship. The above test will take 5 min, & you will learn something.... I run 48* of initial timing...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    15-01-2019, 07:30 PM
    GtoGeoff replied to a thread 308 build in Holden V8's
    Stick with the QJ. Do not over-cam it. You said you wanted a torquey cruiser. You have a not-so-big engine powering a heavy van with 3.08 diff. A big...
    22 replies | 655 view(s)
  • GtoGeoff's Avatar
    15-01-2019, 07:23 PM
    Let me guess, a Holley carb ? Agree, you should use NGK -5 plugs. Couple of other issues. Is the PCV hooked up? If so, it is probably not...
    42 replies | 890 view(s)
  • GtoGeoff's Avatar
    15-01-2019, 07:14 PM
    You could have two problems. Lifter pump up will punch out those weak circlips. Pump up is caused by excessive rpm &/or weak valve springs. The...
    52 replies | 1080 view(s)
  • GtoGeoff's Avatar
    14-01-2019, 06:30 PM
    GtoGeoff replied to a thread Engine oil in Holden V8's
    Circuit VK, What 'light' did you see that you claim stopped you using Penrite? In an OK Timken bearing test some years ago, first place was a tie:...
    27 replies | 1225 view(s)
  • GtoGeoff's Avatar
    13-01-2019, 10:54 AM
    Burt Bros, Sydney. Ph: 02 9681 1433
    4 replies | 663 view(s)
  • GtoGeoff's Avatar
    13-01-2019, 10:43 AM
    GtoGeoff replied to a thread The Quadrajet in Holden V8's
    Yes, 48 IDF Webers. I have four of them on my engine. Street driven. On a mate's car that I tune, I fitted a pair of 44 IDFs on an adaptor...
    16 replies | 809 view(s)
  • GtoGeoff's Avatar
    11-01-2019, 06:33 PM
    GtoGeoff replied to a thread The Quadrajet in Holden V8's
    Lx hatch. Excellent comments. EFI. On those units that bolt to a 4bbl manifold in place of a carb, I have seen a few tests, & the carb nearly...
    16 replies | 809 view(s)
  • GtoGeoff's Avatar
    10-01-2019, 07:07 PM
    GtoGeoff replied to a thread The Quadrajet in Holden V8's
    I realised I have made a mistake in the above post. On a QJ, it is the air valve that gets locked out with the choke actuated. I was thinking of...
    16 replies | 809 view(s)
  • GtoGeoff's Avatar
    10-01-2019, 06:42 PM
    Another option to machining the seats is to use a spring locator, if you have enough installed height. The locators are usually 0.060" thick. You can...
    14 replies | 542 view(s)
  • GtoGeoff's Avatar
    10-01-2019, 06:33 PM
    GtoGeoff started a thread The Quadrajet in Holden V8's
    To Casitron. The old thread was closed. Apparently it seems some people on this forum are not interested in facts, just hang on to pre-conceived...
    16 replies | 809 view(s)
  • GtoGeoff's Avatar
    09-01-2019, 03:05 PM
    Have you considered beehive or conical springs? They reduce the spring rate reqd because the valve train 'sees' less weight. The lobes will live...
    14 replies | 542 view(s)
  • GtoGeoff's Avatar
    09-01-2019, 03:00 PM
    ***" QJ carbs have mech secondary throttle plates operated by a progressive linkage"***. From post # 45, & 100% correct. I said the same in posts...
    51 replies | 1793 view(s)
  • GtoGeoff's Avatar
    07-01-2019, 06:04 PM
    Many factors to consider with lifter bleed down rates: oil viscosity, internal piston/body clearance, spring rate, rocker ratio. Thin oil, stronger...
    13 replies | 646 view(s)
  • GtoGeoff's Avatar
    07-01-2019, 05:54 PM
    EH179, Your memory is failing as well..... You started the name calling, post #13. I just responded. To the OP & others. There is an...
    51 replies | 1793 view(s)
  • GtoGeoff's Avatar
    06-01-2019, 11:37 AM
    EH179, Dork/dope/moron it seems you cannot read either. I gave you a quote from a carb engineer about how the secondary throttle blades function....
    51 replies | 1793 view(s)
  • GtoGeoff's Avatar
    05-01-2019, 08:28 PM
    Yes, EH179, they are mech sec carbs. Learn about how carbs work before you post. I suggest you try & find the original Holley Carb book, written...
    51 replies | 1793 view(s)
  • GtoGeoff's Avatar
    04-01-2019, 07:02 PM
    QJ is probably best for your combo which is pretty mild looking at the cam. If you did want to change to another carb, the Edelbrock 650 AVS carb...
    51 replies | 1793 view(s)
  • GtoGeoff's Avatar
    03-01-2019, 06:58 PM
    GtoGeoff started a thread Ign coil in For Sale Items
    Ign coil, suits CD ign only . Summit coil # 850615. New in box, bought in error. 48000 volts, 425 milliamps of current. Bargain, $50. This is greater...
    0 replies | 491 view(s)
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About GtoGeoff

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