Holley integrated Sniper regulator question

[jrohrig]

For those who have a sniper efi system hooked up, do you use the integrated regulator or do you use a separate one, and why?

[i.e.427]

Internal one has worked just fine every time we've installed the Sniper.

Frank

[Namrups]

Internal.

[Papa]

The built-in regulators are prone to failure, but are cheap to replace. You can replace ten of them for the cost of a high-end external regulator.

[D Stand]

Internal.

[weendoggy]

For those who have a sniper efi system hooked up, do you use the integrated regulator or do you use a separate one, and why?

If you get the Sniper 2, it has external regulator. Original Sniper, internal (prone to failure). I've installed several on cars (not mine) and after two internal failures, put an external on. No more issues and easy to regulate. Also, make sure of feed and return line size. Ask Holley why they went to external. :rolleyes:

[Jeff_J.]

External Aeromotive regulator and pressure gauge . There are posts regarding the sniper and the internal regulator; for me it was better to have a gauge and regulator on the firewall. The regulator and pressure gauge also confirm fuel pump pressure within the system, I'm hoping not to be somewhere on the road with a problem not knowing if I had correct fuel pressure. Holley tech guy didn't want to say either way which was best but both Weendoggy and Papa make good points.

[Papa]

External Aeromotive regulator and pressure gauge . There are posts regarding the sniper and the internal regulator; for me it was better to have a gauge and regulator on the firewall. The regulator and pressure gauge also confirm fuel pump pressure within the system, I'm hoping not to be somewhere on the road with a problem not knowing if I had correct fuel pressure. Holley tech guy didn't want to say either way which was best but both Weendoggy and Papa make good points.

The Aeromotive regulator is a nice part and will serve you well. I bought one when my Sniper internal regulator failed, but ended up replacing the internal regulator as an intended temporary fix until I had time to rework the fuel lines for the external. As it turned out, I ended up swapping the Sniper out with a multi-port EFI (Stacks) from Jim Inglese. Jim provided the regulator for the stacks that I ended up using and still have the brand new Aeromotive regulator on the shelf just in case the Holley part Jim provided fails.

Regarding pressure gauges, I've been told that once you get the pressure set, you should remove the gauge as they tend to fail, causing a leak that can start a fire.

[weendoggy]

Regarding pressure gauges, I've been told that once you get the pressure set, you should remove the gauge as they tend to fail, causing a leak that can start a fire.

Curious how many of these you know of failed. Been in this industry my entire life and haven't seen one fail. But, it could happen, just like a fuel line fitting.

[Papa]

Curious how many of these you know of failed. Been in this industry my entire life and haven't seen one fail. But, it could happen, just like a fuel line fitting.

I don't know of any personally, but have seen others discussing it.

https://thefactoryfiveforum.com/showthread.php?35215-Fuel-regulator-positioning&p=402408&viewfull=1#post402408
https://thefactoryfiveforum.com/showthread.php?46188-Most-frequent-cause-location-of-fires-on-roadster

[Blitzboy54]

My internal failed and caused a complete blockage. I opted to remove it and add an external unit. I like having the control of being able to adjust it and it has to this point been more reliable. I have since this picture was taken removed the gauge after it was set and proved to be stable.


https://thefactoryfiveforum.com/attachment.php?attachmentid=180012&d=1676423997

[Alan_C]

As said, the internal regulators are weak point which is well documented on the Holley Sniper forums. It is interesting as you move up to the higher HP and more pricey versions, the internal regulator is bypassed and an external regulator is used. If you want peace of mind from the get go, go with the external. Or you can go with the internal with the knowledge the internal has a limited lifespan and that you may be taking the ride of shame home one day.

[BradCraig]

Internal, but will do external if it fails. Note that the Sniper V2 does not have an internal regulator.

[BradCraig]

The Aeromotive regulator is a nice part and will serve you well. I bought one when my Sniper internal regulator failed, but ended up replacing the internal regulator as an intended temporary fix until I had time to rework the fuel lines for the external. As it turned out, I ended up swapping the Sniper out with a multi-port EFI (Stacks) from Jim Inglese. Jim provided the regulator for the stacks that I ended up using and still have the brand new Aeromotive regulator on the shelf just in case the Holley part Jim provided fails.

Regarding pressure gauges, I've been told that once you get the pressure set, you should remove the gauge as they tend to fail, causing a leak that can start a fire.

I removed my gauge after it in fact, started leaking.

[mrglaeser]

I removed my gauge after it in fact, started leaking.

I'll have to keep an eye on this. I installed an external regulator with Gauge. I'll be installing a Sniper Stealth system.

I've had a similar setup in a 1969 Mustang for 12 years with no leak but with a Holley 4150 Carb. Though pressures are much lower on carburetors I found adding the fuel regulator helped with making the 4150 run more predictably. So my thought was to do similar with the Sniper. I suggest using some specialized thread sealer at the gauge.

[TMartinLVNV]

Internal. It has worked fine for me.