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  1. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    Personally, I like his optimism.
  2. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    IAC is factory set at 20% I believe, and offhand, I can't think of reason to change that, but I can't see why it would do anything harmful. Actual Idle should be about 5-10% and I think that just smooths out the rampdown. EDIT: I did mess with it by raising it, in hopes it would delay whatever...
  3. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    No, it’s not the same as far as the function of the engine and the purpose of the pvc goes, but, I don’t know how sniper can distinguish between the two.
  4. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    i suppose thats my point. unlike wear, the PVC is a constant, not variable. Thats why i isolated it myself. if a healthy engine with a stock pvc unit malfunctions, and all healthy engines have one, then all healthy engines should have this error. that does not appear to be the case, thats why...
  5. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    Interesting. I suspected the PVC could have an affect on this since the issue during an extended time when the throttle is closed in gear. Doing the "shake" test my PVC seemed good but I bought a new one anyway, and then I tried clamping it off completely, but neither had an iota of affect, so I...
  6. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    It does not, but it does have the venturi effect sucking fuel off the bowl if air crosses it, wheres the FI ONLY gives fuel when the computer tells it to. I think when youre drifting to a halt in gear, those flaps are closed, its in open loop, its going lean, you come close to a stop, you push...
  7. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    Youre supposed to have a healthy motor to start with. The unit LEARNS. Watch some of the videos they have online. Assuming your engine is healthy, once it learns and you tweek the unit for you peculiarities, transfer the learn to the table, smooth it once or twice, and lower the learn %. If the...
  8. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    what all have you tried?
  9. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    keep in mid there's a setting in there, that affects the reaction rate of the unit to changes sensed by the O2. 1-5, 1 being the fastest. Its there to compensate for O2's that are far awya from the intake, and comes factory on 3. if youre that close to "good" with the rpm at 680, try moving that...
  10. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    yea.. v8 has been a plan now for... i... dunnknow... 8 years... i guess too lazy and too cheap. i actually bught a rust free 62, as the 60 is just too far gone now, for my taste, so im gonna move the drivtrain and tons other parts and run the 3fe for a while and see if i like it.
  11. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    A couple additional things i'll note that were fighting here, is the amount of RPM band were dealing with, and volume of air required for the power produced. first, the sniper (at least my "2bbl" model) comes set up, and is expected to be utilized, on an engine that has 40% more usable rpm. I...
  12. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    Here's what I've wondered... with a carb the fuel is a constant flow with the venturi effect, and with a FI you're pulsing. What effect does that have at what RPM when combined with the manifold? I think at high RPM it doesn't mean s*** with the volume and turbulence, and thats why even when...
  13. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    naa.. thats fine. its just idle, and that fuel will keep the o2 from hunting around and going lean with the s***ball uneven airflow on the 1930's manifold design when you come off a long slow deceleration. keep in mind if you put a modern oem engine management system on this engine, the airflow...
  14. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    starting and running sideways are definite advantages. in really cold weather you are on the go much quicker when finally tuned. think of it this way, if merely adding FI added MPG, they wouldn't have had to redesign entire engines. that having been said, the engine will generally run smoother...
  15. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    my angle sensor is a little bit over perpendicular, and i have 3-2-1 headders so its under the driver where i could get a drill in there. further away than ideal. i was too lazy to drop anything.
  16. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    ill download and take some screen shots of my settings when I get home. I'm not stock, but unless you did something really wacky, I cant see that killing an O2. THink about it, you're getting "normal" reading and its running fine, why would an o2 s*** the bed fro the exhaust? I lost the stock...
  17. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    Just an FYI, or, maybe just my opinion/observation. This product is marketed as self learning and plug and play. It sort of is when compared to older Megasquirt and such, but, it's not AI. It doesn't magically know whats going on with the condition of the motor. It shows up with a fuel map that...
  18. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    A little more detail...
  19. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    I would say, one of the most important things to do is adjust your valves. Issues there may just show up as a slow degradation of power on a carb, but can cause real fuel issues with an O2 sensor. It tuned out much better after doing my valves.
  20. zipper

    Builds 1985 FJ60 Gets a Holley Sniper EFI Setup

    I didn't know they made one. At first I looked into adapting the cable attachment cam from a GM TBI as its progressive and not static, but that looked like s*** ton of work and hacking up the holley. So when I set mine up I made an extention with a bunch of holes so I could keep resetting the...
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