Sniper EFI on 195.6 OHV

Scrappy wrote: farna wrote: I'd go with a MicroSquirt now, as it's compact, reliable and easy to program. The only issue is it just has two injector drivers (IIRC... but four ignition pulses), so it's good for TBI or batch fire, not sequential injection. That'd be a good choice, but as to the benefit of sequential, there's none when it's TBI, and when it's port injection, sequential is mainly useful for improving idle quality and emissions.  You also need additional sensors, so there's that.

tomj wrote: Scrappy wrote: farna wrote: I'd go with a MicroSquirt now, as it's compact, reliable and easy to program. The only issue is it just has two injector drivers (IIRC... but four ignition pulses), so it's good for TBI or batch fire, not sequential injection. That'd be a good choice, but as to the benefit of sequential, there's none when it's TBI, and when it's port injection, sequential is mainly useful for improving idle quality and emissions.  You also need additional sensors, so there's that. For modern engines (by this I mean 1970s! Lol) port injection is at least doable physically.  TBI is the only choice on this engine.  All I wanted was the low hanging fruit.... And yeah the old GM stuff has too few sensors to do a thorough job.

I absolutely hate feedback carbs! I suppose it would be a bit better than a regular carb, but it's so close to a TBI system in costs you may as well go that route. A MicroSquirt with an OEM small 2V or large 1V TBI (from a 2.8/3.0 V6 or 2.5L four) and OEM type sensors would be great, and probably a good bit less money (but more work) than the Sniper. And I suspect a lot more reliable.

So you would be making your own controller? Hmmm... if you go that route it might prove interesting. Few of us have that capability, but you do! Could actually end up being a viable hobby product, especially if it works with the BBD 2V feedback carb also. There were no 4V feedbacks AFAIK.

hi, too bad the 1bbl Sniper didn't work out for you. I have a 2bbl Sniper BBD on the hopped up 258 in my 77 Hornet AMX. I love the thing! I did however have an initial problem, got the Sniper installed, ran for a couple of weeks, then one day, would not start at all. Looked at it, and one barrel was completely full of fuel. Turns out it was a bad injector. Holley didn't argue about it, and sent me a new unit within a week. The new unit has so far, almost a year now, been trouble free. I have done absolutely NOTHING to it, just let it "learn" by itself. I'm not a computer guy. I do have a fuel pressure gauge on it, and Holleys in tank fuel pump system. Ignition is DUI. Total cost, including installation, a little under $2000. I'm hoping it proves reliable!