It's a great day, no more POS Sniper!

Discussion in 'Tech Discussion' started by SquareRoot, Oct 24, 2018.

  1. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    Short story- Bought a Sniper, installed per instructions, ran for 150 miles and it quit. Sent back to Holley under warranty, got it back, hooked it up....same failure -"searching for ECU". Sent it back again. Repaired...was told it needed a firmware update. Got it back, verified it worked and immediatly sold it for half what I paid for it to a " Holley dealer" from the Holley Sniper forum on the Holley website.
    I HIGHLY recommend anyone contemplating buying this POS to spend some time reading thru that forum and take note of the endless issues they are having. As people are saying, it's not if but when it's going to die. In retrospect, I can't help but wonder who thought mounting an ecu on top of an engine with the heat and vibration was a good idea? I had lost confidence in it from the start. Thank God it died in my driveway and not out in the desert 50 miles from nowhere with the wife and kid. Put the Edelbrock carb back on and she runs as good and I'm not scared to drive it again.
     
  2. rpcraft

    rpcraft Full Access Member

    Posts:
    858
    Likes Received:
    245
    Joined:
    May 31, 2016
    Location:
    Texas
    First Name:
    Robert
    Truck Year:
    1985
    Truck Model:
    Jimmy
    Engine Size:
    0.0
    Seems like every time i read about someone trying these TBI FI setups they end up being problematic, ushering in a ton of parts replacement to make them work, and then they really never offer any advantage over what would have amounted to a stock TBI setup, other than the fact that you can put them on a square bore intake...

    Meanwhile the irony is you could hook up a Edlebrock Performer with an electric choke and gotten better out of the box results...
     
    B.K. Cunningham likes this.
  3. spanky55amg

    spanky55amg I'll give u $5, a hardy handshake, & 5 fish sticks

    Posts:
    733
    Likes Received:
    177
    Joined:
    Jun 6, 2017
    Location:
    Dallas, TX
    First Name:
    Spanky
    Truck Year:
    1984
    Truck Model:
    C10 Short Fleet
    Engine Size:
    V8
    Mercedes Benz as of 2006-ish.
     
    Rusty Nail likes this.
  4. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    I ran an Edelbrock Pro-flo for a decade. Never had a single issue with it. I'm convinced using factory developed parts will almost always be more reliable than the aftermarket.
     
  5. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    Mercedes engineers and QA versus Holley engineers. That makes sense.
     
  6. spanky55amg

    spanky55amg I'll give u $5, a hardy handshake, & 5 fish sticks

    Posts:
    733
    Likes Received:
    177
    Joined:
    Jun 6, 2017
    Location:
    Dallas, TX
    First Name:
    Spanky
    Truck Year:
    1984
    Truck Model:
    C10 Short Fleet
    Engine Size:
    V8
    They might be the same people. haha.
     
  7. bucket

    bucket Super Moderator Staff Member

    Age:
    36
    Posts:
    16,812
    Likes Received:
    2,263
    Joined:
    Aug 3, 2010
    Location:
    Usually not in Ohio
    First Name:
    Andy
    Truck Year:
    '77, '78, '79, '84, '88
    Truck Model:
    K5 thru K30
    Engine Size:
    350-454
    A large amount of truck and industrial diesel engines have had engine-mounted ECMs for decades now.
     
    henrym likes this.
  8. Matt69olds

    Matt69olds Member

    Posts:
    43
    Likes Received:
    32
    Joined:
    Jan 8, 2018
    Location:
    Central Indiana
    First Name:
    Matt
    Truck Year:
    81
    Truck Model:
    GMC 1/2 ton
    Engine Size:
    455 Olds
    I have the sniper EFI on my Olds, for the most part I’m happy with it. I’m much less satisfied with Holley tech support. No matter who I talked to, they always seemed rushed. I called/emailed multiple times asking for a basic wiring diagram on how to make the progressive nitrous control functional. Of course, this was AFTER finding out the sniper will control nitrous, air conditioning compressor controls, and a 2step rev limiter, just not all at the same time. I need the Super Sniper for all those features to work. Really chaps my ass that they didn’t tell me about that until it was installed and the basic installation was done. Then the stupid throttle linkage they built the throttle body with (what was wrong with using the same linkage the millions of carbs thru have built over the years?!). I’m done venting
     
  9. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    The ungodly stiff 1:1 throttle linkage was the very first thing I hated the first time it fired. Even worse with my manual transmission. It went downhill from there.
     
  10. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    Ok. Maybe I'm blaming the ECU location instead of the shitty aftermarket parts they use. Or...poor engineering...or poor quality control...or?
     
  11. bluex

    bluex Full Access Member

    Posts:
    1,042
    Likes Received:
    419
    Joined:
    May 9, 2013
    Location:
    Spartanburg SC
    First Name:
    Paul
    Truck Year:
    1978
    Truck Model:
    C15
    Engine Size:
    350
    I had a couple issues with my sniper but after I worked that out its been great. The majority of it was my own fault. It isnt a perfect unit and there are still things I don't like but over all I'm happy with mine. It makes it run more like a modern engine and it's easier to tune imo. I have roughly 4500-5000 miles on mine now.

    The stiff throttle feel is easily fixed with an extension that takes 5 mins to make or you can use the progressive linkage they now offer as an add on. I tried it but I didnt like it so I took it back off. It opened the back barrels on mine at like 47% throttle iirc. I like the idea of the progressive linkage but it needs to open the back more around 20% I think.
     
    Old77 likes this.
  12. fussfeld

    fussfeld Full Access Member

    Posts:
    289
    Likes Received:
    29
    Joined:
    Mar 25, 2013
    Location:
    east coast
    First Name:
    j
    Truck Year:
    83
    Truck Model:
    c-10
    Engine Size:
    4.3 v-6 262CID
    Glad to hear some are having success with the Sniper.

    But it's unfortunate to hear the high number of complaints about sniper; i was really leaning towards the new direct quadrajet throttle body replacement kit.

    i guess i'm sticking with stock GM TBI for now, if i do decide to go injection.
     
  13. bluex

    bluex Full Access Member

    Posts:
    1,042
    Likes Received:
    419
    Joined:
    May 9, 2013
    Location:
    Spartanburg SC
    First Name:
    Paul
    Truck Year:
    1978
    Truck Model:
    C15
    Engine Size:
    350

    I blame a lot of it on how it's marketed. You can't just slap it on, haphazardly run the wires and run it. It's a little More involved than that and while they are self learning they are not self programming. You just trade jet kits, metering rods and screwdrivers for a computer screen. It still needs tweaking to run at its best just like anything else. But thats not how they market it at all....
     
    henrym, Old77 and SquareRoot like this.
  14. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    I bought the progressive link but never installed it after reading all the hassle it was creating for those who did. The problem is Sniper does not have the correct acceleration enrichment fuel maps built into it to support it... despite having the check box in the menu for progressive. I'm just not into dealing with that much programming. It is advertised as install and run it. Not so.
     
  15. SquareRoot

    SquareRoot Full Access Member

    Posts:
    69
    Likes Received:
    30
    Joined:
    Mar 18, 2017
    Location:
    Arizona
    First Name:
    Mike
    Truck Year:
    85
    Truck Model:
    K20
    Engine Size:
    350
    Exactly!
     

Share This Page