Monte, any commentary on this new Holley Sniper EFI?

https://www.holley.com/blog/post/holley_introduces_sniper_efi_systems/

Complete and self learning, does it come with 8 wide band O2 sensors and a knock sensor?

Is it just me or does this look just like the FiTech EFI?

I wonder if you can run whatever A/F ratio you want at any rpm you want?

Doesn't look near as good as the FiTech IMO. But how is the functionality and does it really support 1200 gas HP?

Looks like a Thermoquad LOL!!! Does look interesting though, can it handle boost?

This is something we have been working on a while. The press release is pretty self explanatory as to what it will do........and YES, it will support 1200hp with the upgraded injectors. But me personally, I consider this a retro-fit kit for street cars and mildly upgraded motors. This is similar to Atomic and some others, that you answer some questions on a touch screen and it is fully self tuning. You can NOT tune it yourself. If I have 1200hp I want to tune it myself and this would not be the system I would pick

Monte, Thanks for the info. Will the sniper handle boost? Would be cool to make this work with a centrifugal supercharger

Supports dual quad set ups. I wonder how it would work on a cross ram Hemi? Too bad I just bought a pair of carbs.

I just put fitech on my 5.7 hemi 1965 coronet street car,i used their fuel command center.haven't got to drive it much but it did start on the first try.fitech system is able to be tuned after initial setup,will handle boost.i think you can also set target a/f ratio.

Well..There goes the monopoly. Shouldn't be long before we see sub $800 tbi. Thanks FiTech!

I'd appreciate if you'd all stop posting any info on this fuel injection stuff..... I'm feeling the money fluttering in my wallet already.

Jay, It's the moth wings not money!

According to their FAQ section it is completely tuneable via laptop.



Kevin

You appear to be talking about the Fitech...........I was referring to Holley. Althought I don't have all the particulars on the Sniper, I don't think it is tunable externally>

I knew it was coming, but haven't been involved with the project directly. It was just released at SEMA. I will get a better look at PRI and I suspect my JEEP will get one for some beta testing........LOL!!!!

The 4150 profile of these will make putting the Vortech on much cleaner than using the bow thru 4500 that came with my set-up. The 4150 hat is a lot smaller. I am still leaning to the Fitech, especially if it more versatile.

With the power you are trying to make, not sure why you are dead set on sticking with the blow through deal. Do it ONCE and do it RIGHT........which is port injection with a throttle body and a fully tunable ECU

Will the Sniper compensate for more "fuel" coming in from another source like meth or a separate fuel stream, by adjusting to the O2?

Blow through is cheap. Relatively speaking. This motor is kinda a sows ear anyways. If the features on the Holley are good enough I would be willing to try one. 1200 crank HP is all the Vortech claims to support, and I was told that the motor on NOS was around 1250 so the power should match the car. My only goal is to play with the street cars around here on the track. That takes a solid 5 second car.

That EFI architecture is the $20K deal you talked about before. Yeah, a 90* 4500 pattern TB and injectors would be nice and probably a lot better, but not cheap.

However, I got one of B1CUDAs dashs... and the race stuff wiring all needs redone and the MSD7 moved out of the passengers way... so I'm not against new car wiring so much anymore.

Funny how the guy I got the blower setup from (Kenny's buddy, I should have known better to walk in there that day bitching about how expensive EFI was after leaving your house) ran a 6.14 up on the mountain that night with a 3900# car and a POS iron 500. Blow through Dominator on E85. The hat is too big for my 499's tall manifold, won't clear the cowl. I think a 4150 form factor might fit under there. Easy enough to check. I'll need an adapter to put a 4150 on the 4500 manifold and for sure some meth.

Anybody wanna buy a nice C&S blow through E85 Dominator? I'll throw in the hat for free.

And let me throw this out there. I talked with FiTech a few months back about their 1200 unit. E85 is good up to the flow limits of the injectors, 1200 on race gas is good to 1200, but 1200 on E85 is not so good. Not enough flow in the internal - proprietary - made for them - injectors. Maybe R&D for bigger units but not in the cards now.

If these can compensate the A/F ratio for meth, why not for a secondary stream of fuel? Say a fogger system with possibly 2 stages of fuel ( fuel and NOS side of the nozzle)? Add the extra fuel when the EFI starts to peter out and let the EFI back off to compensate.

Monte, this is right up your alley and my ratty old 499 a perfect ginnie pig. All you have to do is convince Holley what a great idea this is, but only on my stuff for now. And be able to tweak the code.


Full disclosure, I am cutting a bunch of grass out back waiting for a football game to come on, and I stop in for a fresh beer now and then. Lotsa time to think while mowing. This was one of those stops.

I need to stop now, but there is the question. Exceeding the fuel capability of these units when under boost, by supplementing fuel flow external to the unit injectors

My first impression as well