Thanks so much for your very helpful video!! Currently setting up a super sniper on an 88mm T6 Big Block, everything you said is exactly what I needed. Cheers! Pat
This is a timely video. I purchased a new standard Sniper from an individual and I'm in the processes of putting it on an old school draw through Martin Turbosystem that puts out about 7psi of boost. Ive got questions but the more I re-watch the video the more I learn. Thanks
By far the best video I've watched on Holley Terminator, thank you for this awesome info, going to help me really dial in my boosted LS so much better. Thanks!
I just purchased a Holley sniper. I installed it on a 350 with a roots style supercharger. I did what U covered in a previous vid about configuring it with the hand held to a super sniper then running it back as a sniper. Still really new at it. Need to do what U are describing in this vid next. Can u help if I send u the files ? To just do a check ?
Good day to you sir and great video I just bought a Holley Sniper Xflow and love it Im going to run e85 next which tests at e90 should I go open loop and no learning and just start adding Base Fuel and thanks again for sharing your knowledge
This video is exactly what I've been looking for! Trying to help buddy figure out his 67 mustang 289 sniper issue of WOT pulls amazing to 5000rpm and breaks up horribly and plugs indicate lean condition. Guess we have some serious fuel base map tuning to so haha
I'm glad you've found the video helpful. The Sniper system will Probably richen the mix at WOT eventually but only after a significant number of pulls. Definitly better to go in there yourself and tune it to a closer starting point.
I get how to do all of this but im literally just trying to find the correct software program for a holley 2300 efi. The program you are on, what is it called on holley's website? I need the name of this program word for word. There are a bunch of downloads for the sniper efi. Which one do you click for the actual tuning program?
It looks like they've changed the site a bit since I last downloaded so. I can't help. Honestly I'd give Holley a quick message or call and they can easily tell you the best download/version for your setup.
@@TurboCamaro67 thank you for the response. I found it. I just kept downloading until i found the correct program. Needed this to view datalogs. I have an issue with sputtering under wide open throttle
Good stuff. My super sniper kit should be here soon. Did you learn the tricks of over writing axis values then auto filling, etc. in the instructions, or figured it out on your own?
I figured it out on my own. The included paper instructions were good for installing the kit but had almost no information about the software. The Sniper efi online manual has some useful information but honestly watching my video and just tinkering with it will probably be the best way to learn. I was very generic with my tuning in the video as I didn't want to encourage people to go aggressively rich or lean right out the gate.once you have a custom tune setup and you drive around you'll get a feel for what the car needs and where you can make adjustments. It's "fun" if you like those sort of things 😁
Is the base fuel table totally independent of the AFR table? I have my 4150 running with the handheld on my turbo 406 sbc and I'm ready to start the laptop tuning. I have afr and timing tables built in excel to mimic in the software but not sure on the base fuel table
Sounds like you've got the right idea. You want to insert/paste your AFR table and Timing numbers into the tables and allow the Sniper system to generate its own fuel table. The fuel table is basically a reference for the Sniper EFI system as to how much fuel to push at any particular time based on the AFR and Timing numbers you set. Once your system has some solid numbers there, you can smooth and blend those numbers as shown in the video for a smoother overall fuel flow.
Great video! Thank you for taking the time to produce an extremely high quality video series. With all of your custom tuning, what kind of fuel economy are you seeing?
Fuel economy is actually decent as I'm not nearly as heavy footed as I was when it was done. I drive it everywhere and it seems to sip gas well. It's really just a built up 250 with fuel injection when driving normally. I'd like to give you an actual MPG but I honestly don't know. I should finish the current project and consider getting those numbers.
Turbo Camaro I will be keeping my eyes out for that video. I am contemplating gettting an old four dour chevelle or wagon and doing a very similar build. Would be a fun Sunday cruise car.
I just bought the 550-511 and I thought there would be an option for boost but the manual says there isn't, I didn't hook it up yet but I plan on running 10 to 12 lbs of boost, can I just update the firmware and will the option be there or not? Thanks
Technically the "boost" option is in the software but you need to use Holley's hardware to take advantage of it. Either way, the default system is capable of supporting boost out of the box. You MUST custom tune the fuel table with a computer before hitting boost as the default tables are not configured to properly provide fuel or timing in boost.
My street is full of Camaro and TransAm owners. My neighbor on the front of my house has a 67 Camaro. The neighbor to my left has a Firebird convertible...and the neighbor on the corner also has a 67 Camaro. I’m the only Mustang owner, a 65 coupe, lol. Oh wait, one neighbor has an 88 Mustang fox body, but I don’t like those, lol.
How much power are you estimating your engine has. Im currently looking at doing the same setup but on a 202ci gm holden straight 6 but i think the 4150 sniper might be to big.
People smarter than I have estimated over 400HP and TQ at 8psi boost. I've driven several mostly stock V8's (327/350) and this is noticeably more powerful than those. I'm planning a dyno trip at some point but I have a few upgrades left to do. You could always consider the 2 barrel Sniper setup for less than 350HP. If you don't plan to go quite as aggressive with boost or want a slightly tamer daily driver that Sniper might be a better fit. www.efisystempro.com/sniper/sniper-2300-2bbl-kits
Turbo Camaro thanks mate that helps a bit. Im running a standard head with a bit of porting and i quite aggressive cam for turbo with around 12 psi. I had major tuning issues with my 600dp. Thats why im trying to work out which sniper would be best.
Yeah I had issues with the 600dp as well. My estimate of 400ho includes the 8PSI boost l, including the oversized valves, 292 exhaust manifold and meth/water Injection. I know the 4bbl Sniper has no issues with smaller motors, but obviously you don't want to buy it if you only need the 2bbl version. The 2bbl version wasnt out when I got the 4bbl version, but I'm happy with the 4bbl just for the interchangeability of it with a different setup. Maybe someday I decide to get a big block instead and the larger Sniper would be best on that setup. It'll work in any motor I use.
All of my videos are about the non-super Sniper EFI. The method will be similar but the Super Sniper is more prepared to handle higher boost and nitrous out of the box.
In theory the 2 bar map sensor is limited to reading up to 15psi. I believe you can enter whatever values you want in the software. It would just be a matter of upgrading to a 3 bar map sensor and you could boost higher. I haven't looked into swapping it. I know it can be done on the Holley Terminator EFI products so perhaps you can on the sniper as well.
Yeah, $1000 is a big chunk of change but it's a very high quality product and complete. Having to frequently adjust a carburetor for turbo and alcohol injection was time consuming and too finicky. The tunability and drivability is fantastic. I find it fun to play with, where the carburetor was more of an annoyance. I don't regret it at all.
Well when you think about it, a boost ready Holley that has been moded by a quality company is about $600 to $800, that makes the Sniper a far better value. I've been looking at a turbo system I saw on UA-cam built by DeBoss Garage that uses twin parallel staged turbos. It's very interesting, exhaust goes to a small turbo for low end torque, and then at about 8 psi a gate opens to a larger turbo for top end power. I think it could be done easily with cheap simple turbos with the use of a Loud Valve that is boost referenced. Go check it out at the DeBoss Garage channel, its the LS engine in the Audi Quatro.
John Parrish yeah that sounds great! You're right about the carburetor to EFI value. I know I spent $150 on my carb core, another $100 on the rebuild kit and other missing components and then had a working, but truly inferior fuel system. I'm pretty much at a set it and forget it stage now and that suits me just fine. That progressive turbo build sounds great. Probably a little over the top for my needs, but that's still fantastic, I'll take a look right now.
You sure can. Technically the 2bbl may have been enough to support this engine but with the turbo, and considering future upgrade potential, I'm happy with the 4bbl.
Hey Johnny, that's an interesting proposition but I don't think I'm willing to take the liability. Their must be a shop in your area, with a dyno perhaps, that will help with this sort of thing. Usually shops. Specializing in import tuning do these sorts of setups too.
This video gives me hope that I won’t be melting pistons this weekend !! Thanks man!🤘🤙
Thanks so much for your very helpful video!!
Currently setting up a super sniper on an 88mm T6 Big Block, everything you said is exactly what I needed.
Cheers!
Pat
This is a timely video. I purchased a new standard Sniper from an individual and I'm in the processes of putting it on an old school draw through Martin Turbosystem that puts out about 7psi of boost. Ive got questions but the more I re-watch the video the more I learn. Thanks
Sounds like a great project. I'm glad my video(s) are helping you out. I'm not an expert, but let me know how I can help.
Great video. After seeing you explain it I’m much more confident trying this system. Thanks
Glad the video was helpful to you. Let me know if you have any issues.
Best video i have seen by far.
sub'd. great info.. i'll be throwing a super sniper on my 68 mustang. your vids will help tremendously.
By far the best video I've watched on Holley Terminator, thank you for this awesome info, going to help me really dial in my boosted LS so much better.
Thanks!
Really good video and greatly appreciated the work you have out into it. There tuning system looks amazing!
I just purchased a Holley sniper. I installed it on a 350 with a roots style supercharger. I did what U covered in a previous vid about configuring it with the hand held to a super sniper then running it back as a sniper. Still really new at it. Need to do what U are describing in this vid next. Can u help if I send u the files ? To just do a check ?
Good day to you sir and great video I just bought a Holley Sniper Xflow and love it Im going to run e85 next which tests at e90 should I go open loop and no learning and just start adding Base Fuel and thanks again for sharing your knowledge
Forgot to mention Im running a Blow Thru TorqueStorm Supercharger 15 pounds boot
This video is exactly what I've been looking for! Trying to help buddy figure out his 67 mustang 289 sniper issue of WOT pulls amazing to 5000rpm and breaks up horribly and plugs indicate lean condition. Guess we have some serious fuel base map tuning to so haha
I'm glad you've found the video helpful. The Sniper system will Probably richen the mix at WOT eventually but only after a significant number of pulls. Definitly better to go in there yourself and tune it to a closer starting point.
I get how to do all of this but im literally just trying to find the correct software program for a holley 2300 efi. The program you are on, what is it called on holley's website? I need the name of this program word for word. There are a bunch of downloads for the sniper efi. Which one do you click for the actual tuning program?
It looks like they've changed the site a bit since I last downloaded so. I can't help. Honestly I'd give Holley a quick message or call and they can easily tell you the best download/version for your setup.
@@TurboCamaro67 thank you for the response. I found it. I just kept downloading until i found the correct program. Needed this to view datalogs. I have an issue with sputtering under wide open throttle
Dude, this is sweet info. Thanks 🙏🏻
Glad it's helpful, let me know if you need any help or clarification.
Good stuff. My super sniper kit should be here soon. Did you learn the tricks of over writing axis values then auto filling, etc. in the instructions, or figured it out on your own?
I figured it out on my own. The included paper instructions were good for installing the kit but had almost no information about the software. The Sniper efi online manual has some useful information but honestly watching my video and just tinkering with it will probably be the best way to learn. I was very generic with my tuning in the video as I didn't want to encourage people to go aggressively rich or lean right out the gate.once you have a custom tune setup and you drive around you'll get a feel for what the car needs and where you can make adjustments. It's "fun" if you like those sort of things 😁
Hi
Can you add oil pressure input to the sniper?
Is the base fuel table totally independent of the AFR table? I have my 4150 running with the handheld on my turbo 406 sbc and I'm ready to start the laptop tuning. I have afr and timing tables built in excel to mimic in the software but not sure on the base fuel table
Sounds like you've got the right idea. You want to insert/paste your AFR table and Timing numbers into the tables and allow the Sniper system to generate its own fuel table. The fuel table is basically a reference for the Sniper EFI system as to how much fuel to push at any particular time based on the AFR and Timing numbers you set. Once your system has some solid numbers there, you can smooth and blend those numbers as shown in the video for a smoother overall fuel flow.
Hey, great video. Just wondering where you got the tuning software from? is it a Holley download or some other tuning platform? Thanks
It's the Holley Sniper specific tuning software available on Holley's website.
@@TurboCamaro67 Thank you
No problem, thanks for watching!
Great video! Thank you for taking the time to produce an extremely high quality video series.
With all of your custom tuning, what kind of fuel economy are you seeing?
Fuel economy is actually decent as I'm not nearly as heavy footed as I was when it was done. I drive it everywhere and it seems to sip gas well. It's really just a built up 250 with fuel injection when driving normally. I'd like to give you an actual MPG but I honestly don't know. I should finish the current project and consider getting those numbers.
Turbo Camaro I will be keeping my eyes out for that video.
I am contemplating gettting an old four dour chevelle or wagon and doing a very similar build. Would be a fun Sunday cruise car.
I just bought the 550-511 and I thought there would be an option for boost but the manual says there isn't, I didn't hook it up yet but I plan on running 10 to 12 lbs of boost, can I just update the firmware and will the option be there or not? Thanks
Technically the "boost" option is in the software but you need to use Holley's hardware to take advantage of it. Either way, the default system is capable of supporting boost out of the box. You MUST custom tune the fuel table with a computer before hitting boost as the default tables are not configured to properly provide fuel or timing in boost.
Very good thanks, I'm building a Aussie gmh 202 6cyl very similar motor to the chevy 6 , and adding sniper 2 barrel and turbo
I just had the Sniper installed on my Mustang (yes, I’m your enemy, but come in peace, lol)...it’s awesome...
Hah, no enemies around here. I'm sure you're mustang needed the upgrade anyway 🤣
lol
My street is full of Camaro and TransAm owners. My neighbor on the front of my house has a 67 Camaro. The neighbor to my left has a Firebird convertible...and the neighbor on the corner also has a 67 Camaro. I’m the only Mustang owner, a 65 coupe, lol. Oh wait, one neighbor has an 88 Mustang fox body, but I don’t like those, lol.
Haha, sounds like a paradise to be surrounded by all those classics, minus the fox body of course. Classics are rare in my parts.
I’m in California, where classics don’t rust...I’m lucky, ha...
How much power are you estimating your engine has. Im currently looking at doing the same setup but on a 202ci gm holden straight 6 but i think the 4150 sniper might be to big.
People smarter than I have estimated over 400HP and TQ at 8psi boost. I've driven several mostly stock V8's (327/350) and this is noticeably more powerful than those. I'm planning a dyno trip at some point but I have a few upgrades left to do. You could always consider the 2 barrel Sniper setup for less than 350HP. If you don't plan to go quite as aggressive with boost or want a slightly tamer daily driver that Sniper might be a better fit. www.efisystempro.com/sniper/sniper-2300-2bbl-kits
Turbo Camaro thanks mate that helps a bit. Im running a standard head with a bit of porting and i quite aggressive cam for turbo with around 12 psi. I had major tuning issues with my 600dp. Thats why im trying to work out which sniper would be best.
Yeah I had issues with the 600dp as well. My estimate of 400ho includes the 8PSI boost l, including the oversized valves, 292 exhaust manifold and meth/water Injection. I know the 4bbl Sniper has no issues with smaller motors, but obviously you don't want to buy it if you only need the 2bbl version. The 2bbl version wasnt out when I got the 4bbl version, but I'm happy with the 4bbl just for the interchangeability of it with a different setup. Maybe someday I decide to get a big block instead and the larger Sniper would be best on that setup. It'll work in any motor I use.
Thanks for the help.
Was this for a sniper or a super sniper?
All of my videos are about the non-super Sniper EFI. The method will be similar but the Super Sniper is more prepared to handle higher boost and nitrous out of the box.
Is 16 the highest psi that it will handle or is there a way to manipulate the software to run 30psi?
Great video by the way.
In theory the 2 bar map sensor is limited to reading up to 15psi. I believe you can enter whatever values you want in the software. It would just be a matter of upgrading to a 3 bar map sensor and you could boost higher. I haven't looked into swapping it. I know it can be done on the Holley Terminator EFI products so perhaps you can on the sniper as well.
Thanks for the reply pretty amazing unit.
Yeah it works well for me. Obviously might not be the best for higher boost systems. No issues with it in the year I've had it.
A 2 bar map sensor will read up to 21 psi of boost
Hi bro, You have a holley sniper or súper sniper
It's the regular, original Holley Sniper EFI with 4 injectors and handles. Up to 650HP.
@@TurboCamaro67 thanks bro
That EFI system is not cheap, has it been worth it to you???
Yeah, $1000 is a big chunk of change but it's a very high quality product and complete. Having to frequently adjust a carburetor for turbo and alcohol injection was time consuming and too finicky. The tunability and drivability is fantastic. I find it fun to play with, where the carburetor was more of an annoyance. I don't regret it at all.
Well when you think about it, a boost ready Holley that has been moded by a quality company is about $600 to $800, that makes the Sniper a far better value. I've been looking at a turbo system I saw on UA-cam built by DeBoss Garage that uses twin parallel staged turbos. It's very interesting, exhaust goes to a small turbo for low end torque, and then at about 8 psi a gate opens to a larger turbo for top end power. I think it could be done easily with cheap simple turbos with the use of a Loud Valve that is boost referenced. Go check it out at the DeBoss Garage channel, its the LS engine in the Audi Quatro.
John Parrish yeah that sounds great! You're right about the carburetor to EFI value. I know I spent $150 on my carb core, another $100 on the rebuild kit and other missing components and then had a working, but truly inferior fuel system. I'm pretty much at a set it and forget it stage now and that suits me just fine. That progressive turbo build sounds great. Probably a little over the top for my needs, but that's still fantastic, I'll take a look right now.
Can you also do this with the 2300 2bbl version?
You sure can. Technically the 2bbl may have been enough to support this engine but with the turbo, and considering future upgrade potential, I'm happy with the 4bbl.
What engine is this? SBC?
It's a chevy 250 Inline 6. 100ci smaller than the stock 350, but with enough upgrades to leave same in its dust.
….ian, can you program my holley sdcard for a fee?? I can mail you my card with my parameters. thx, johnny
Hey Johnny, that's an interesting proposition but I don't think I'm willing to take the liability. Their must be a shop in your area, with a dyno perhaps, that will help with this sort of thing. Usually shops. Specializing in import tuning do these sorts of setups too.