Re: Holley sniper kits suck BEWARE
[Re: procharged 484]
#2936484
06/24/21 05:59 PM
06/24/21 05:59 PM
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Joined: Jan 2005
Posts: 4,441 Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,441
Michigan
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Just got off the phone with SM ENGINES and they are NOT selling holley sniper kits because they are having major problems with rfi and holley is not helping . All this after I bought one !!!!!! Just follow the instructions regarding wire routing and you'll be fine. Remember this hobby includes people that use romex and wire nuts as acceptable practice for underhood wiring.
1987 Fifth Avenue - 512/518/D60
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Re: Holley sniper kits suck BEWARE
[Re: Twostick]
#2936563
06/24/21 10:31 PM
06/24/21 10:31 PM
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Joined: May 2019
Posts: 713 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 713
Lake Villa Il
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Are you having issues yourself? If so, what plugs/wires?
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: Holley sniper kits suck BEWARE
[Re: jwb123]
#2936566
06/24/21 10:48 PM
06/24/21 10:48 PM
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Joined: May 2019
Posts: 713 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 713
Lake Villa Il
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Soldered a ground wire to the braid I would think that would be the best way. With the Holley system I found it interesting the shielded portion is left open and not grounded EDIT- I take that back. It's not grounded externally at the harness but through the ecu at pins J&K on ignition connector. https://documents.holley.com/558-431_crank-cam_ignition_harness_diagram.pdf
Last edited by INTMD8; 06/24/21 11:08 PM.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: Holley sniper kits suck BEWARE
[Re: procharged 484]
#2936572
06/24/21 11:10 PM
06/24/21 11:10 PM
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Joined: May 2019
Posts: 713 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 713
Lake Villa Il
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Interesting! Were you able to determine what the problem was with the wiring or just sent it back for them to sort out?
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: Holley sniper kits suck BEWARE
[Re: 80fbody]
#2936654
06/25/21 10:54 AM
06/25/21 10:54 AM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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Mine is great. Zero rfi issues. I'd prefer a separate ecu type system in the future but it's been a good system. Gotta really treat it like a new toyota. Very sensitive to voltage, grounds, battery amperage, etc. New wiring throughout the car. Quality connections & splices. Etc. Not saying they're not having issues otherwise but many, many units are out there performing. My remote tuner is tuning probably 4-5 a day, every day it seems. Definitely not a system where you just replace the carb and use a bunch blue butt connectors and roll. That is correct. A Sniper is not a simple carb replacement, especially on a Mopar. There are a lot of things that need to be changed before the Sniper "bolts on". I prefer to start with a new engine compartment harness and go from there.
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Re: Holley sniper kits suck BEWARE
[Re: AndyF]
#2936677
06/25/21 12:10 PM
06/25/21 12:10 PM
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Joined: Jan 2010
Posts: 667 Los Osos, Ca
CKessel
mopar
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mopar
Joined: Jan 2010
Posts: 667
Los Osos, Ca
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EFI and old wiring/electrical systems sometimes don't get along. Very good idea to update systems on car so they all play well together.
Carl Kessel
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Re: Holley sniper kits suck BEWARE
[Re: AndyF]
#2940190
07/05/21 03:56 PM
07/05/21 03:56 PM
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Joined: Jul 2007
Posts: 732 eastern,Ky
70RT Charger
super stock
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super stock
Joined: Jul 2007
Posts: 732
eastern,Ky
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Mine is great. Zero rfi issues. I'd prefer a separate ecu type system in the future but it's been a good system. Gotta really treat it like a new toyota. Very sensitive to voltage, grounds, battery amperage, etc. New wiring throughout the car. Quality connections & splices. Etc. Not saying they're not having issues otherwise but many, many units are out there performing. My remote tuner is tuning probably 4-5 a day, every day it seems. Definitely not a system where you just replace the carb and use a bunch blue butt connectors and roll. That is correct. A Sniper is not a simple carb replacement, especially on a Mopar. There are a lot of things that need to be changed before the Sniper "bolts on". I prefer to start with a new engine compartment harness and go from there. Andy what EFi do you recommend for my 440. I was thinking about going to an Elderbrock Pro flo and getting a size bigger injector as I’m pushing close to 600hp. The tech at Elderbrock told me they only made 2 MAPS for my application that only worked below 12 pounds of Vacuum. I can’t remember what I have but it will be close as I’m running a xr286hr. Any help would be appreciated. Thanks.
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Re: Holley sniper kits suck BEWARE
[Re: 70RT Charger]
#2940195
07/05/21 04:15 PM
07/05/21 04:15 PM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 715
Central TEXAS!!!!
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Mine is great. Zero rfi issues. I'd prefer a separate ecu type system in the future but it's been a good system. Gotta really treat it like a new toyota. Very sensitive to voltage, grounds, battery amperage, etc. New wiring throughout the car. Quality connections & splices. Etc. Not saying they're not having issues otherwise but many, many units are out there performing. My remote tuner is tuning probably 4-5 a day, every day it seems. Definitely not a system where you just replace the carb and use a bunch blue butt connectors and roll. That is correct. A Sniper is not a simple carb replacement, especially on a Mopar. There are a lot of things that need to be changed before the Sniper "bolts on". I prefer to start with a new engine compartment harness and go from there. Andy what EFi do you recommend for my 440. I was thinking about going to an Elderbrock Pro flo and getting a size bigger injector as I’m pushing close to 600hp. The tech at Elderbrock told me they only made 2 MAPS for my application that only worked below 12 pounds of Vacuum. I can’t remember what I have but it will be close as I’m running a xr286hr. Any help would be appreciated. Thanks. take a look at this tread, may help you make a choice. linkJoe
Without Data, you’re just another guy with an opinion.
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Re: Holley sniper kits suck BEWARE
[Re: 70RT Charger]
#2940197
07/05/21 04:20 PM
07/05/21 04:20 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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Mine is great. Zero rfi issues. I'd prefer a separate ecu type system in the future but it's been a good system. Gotta really treat it like a new toyota. Very sensitive to voltage, grounds, battery amperage, etc. New wiring throughout the car. Quality connections & splices. Etc. Not saying they're not having issues otherwise but many, many units are out there performing. My remote tuner is tuning probably 4-5 a day, every day it seems. Definitely not a system where you just replace the carb and use a bunch blue butt connectors and roll. That is correct. A Sniper is not a simple carb replacement, especially on a Mopar. There are a lot of things that need to be changed before the Sniper "bolts on". I prefer to start with a new engine compartment harness and go from there. Andy what EFi do you recommend for my 440. I was thinking about going to an Elderbrock Pro flo and getting a size bigger injector as I’m pushing close to 600hp. The tech at Elderbrock told me they only made 2 MAPS for my application that only worked below 12 pounds of Vacuum. I can’t remember what I have but it will be close as I’m running a xr286hr. Any help would be appreciated. Thanks. I'm not a fan of the Edelbrock system since it is a "black box" which can't really be tuned. FAST used to make good stuff but they have fallen behind now. I would never recommend FiTech even though some people have good luck with those systems. Same with MegaSquirt, I'd never use a MS system or recommend it but there are a lot of MS fans out there who will talk about how great their system is for hours on end. Only thing I recommend these days is a Holley system. The Sniper is the entry level throttle body, next step up is the Terminator X so probably one of those systems. The HP and Dominator systems are much more expensive and complicated and really need a pro to install.
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Re: Holley sniper kits suck BEWARE
[Re: AndyF]
#2940233
07/05/21 06:07 PM
07/05/21 06:07 PM
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Joined: May 2004
Posts: 12,396 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,396
Taxes & Virus's R-US, NY
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My sniper 4500 has been pretty good. It learns well, it runs well I did wire it per the manual, and I did upgrade my alternator big time. I would also prefer the ECU was separate.
Last edited by Dragula; 07/05/21 06:10 PM.
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