From the owner; starts first turn of key with touching gas pedal. Very clean pull to redline, butt dyno quicker than fat Nikki and very much snapper. Still need to let it warm up a little before driving off, same as any rotary; should always like them warm up. Little stumble at steady state cruise around 3K RPM.
was already gonna put a Sniper on my 1979 Grumman StepVan with a 350ci, and these vids just helped convince myself and my daughter that her 1985 12A RX-7 needs one too. I'll try and get a buy one, get a second with a rebate offer ;)
I came across your channel while pondering a new project: a rotary powered home generator, around 10kw. I was researching stand-alone EFI systems for a rotary to make the generator more automated. Will keep the sniper in mind.
Awesome your keeping rotary alive , im building a first gen for my daughter and i just recently bought another first gen for myself both 84 1 stock 12a and the other fully built 12a that i have with a SE center iron doing a 12A fuel injection setup with going to use a fd lower and upper intake manifold that holley sniper now im thinking i should get for my stock 12a
I really appreciate you, so much!! I am afraid I won't be able to find a intake manifold when I finally get to working on my fb... It really bums me out
Thanks for documenting the whole process! I’ve been really interested in getting a sniper setup for my ‘88 RX-7 NA but can’t bring myself to take the stock manifold off because it’s running so well. I’m glad there is more and more info surfacing about sniper use on rotaries. As the stock parts become less and less available, these snipers are going to be a more common occurrence, and I’m excited for that!
Damn. I'm going to watch that build series. Yes the kit is expensive but with fuel prices high you can make the assumption that you're going to ride further with a full tank (free way mostly)
Very interesting. I'm a traditionalist so if I manage to rescue the 1982 GSL I'll probably start out with the stock Nikki but I might go to the Sniper one day. Or......if I find the floors in the 1981 with moss growing on the carpet are solid and it won't be too cost prohibitive to rebuild the interior maybe I'll restomod it and do the Sniper there. But I'm new and have much to learn.
Just a quick question, I want to go with a sniper set up on my 12A (its an RX7 12A in an RX2) which has a big street port, big exhaust ports, and the same style of RB street port exhaust system the '67' RX7 has. Would you still use the 2-barrel Sniper or go for one of the larger ones like the 4150 stealth? I would be setting the rev limit at 8000 because I use standard Mazda apex seals. 2 or 4 barrel Sniper? Which do you think?
Super awesome! Next level of this is hopefully trying out a sniper on a full bridge or even half bridge car for more reliable and smoother running with epic braps!!
@@RADPotential that's what I was hoping to hear. Like you said I think this is the future for carburated rotaries and honestly most old carburated vehicles
As soon as I heard about the sniper I thought, seems like that would be sweet on a rotary. Been waiting for people to start giving it a go. Thanks so much for documenting this and everything else youre doing for the rotary community. Especially the fb's. There is not a lot of informative videos on those babies, which is what I have. Keep it up! Hope your channel continues to grow.
You are right! Parts are hard to find. I'm looking for the Trans cross member bushings and nobody has them..my clutch is done..any idea where I can find them? Or will it work ok with home made rubber on both sides?
It's a universal trans mount. The bushings I would start with energy suspension and see if you can make something work. Maybe a sway bar end link bushing
Doubling the displacement in the computer makes sense. From what I'm told, when sizing a turbo or supercharger for a rotary, you effectively have to double your numbers and run a larger turbine or blower than convention might indicate. Rotaries are weird and flow twice the air of a piston motor of similar displacement
Could your tuning problem be with the intake? I know people been having problems with the efi on dual plane intakes solving the problem by machining out the center on the dual plane intakes. From holley tech - You may find that to get the Sniper to play well with a dual-plane that you'll have to install a tapered open spacer so the Sniper sensors can see what's happening with vacuum and for the IAC to function properly.
It was just a tuning issue. The car has been tuned by a professional Tuner and it's smooth as gravy!! But I'd think that dividing the 2bbl sniper, one barrel to each rotor would increase the snipers ability to self learn
Just finish my install with your videos thanks. I installed a 4 barrel Sniper EFI engine getting gas but it’s flooding no start. Any advise on upgrading to MSD coils, wires and spark plugs. Spark plugs are wet with no start.
One thing I want to point out that would explain it starting better on a 140CI setting is this: Despite technically being called a 1.2 or 1.3L, that is calculated per combustion chamber/event, and each rotor has THREE of those per revolution. So technically, a 13b is 3.9L. This explanation also works to explain why these engines require such LARGE turbos, particularly on the hot side.
It's still a bit rich for start up compared to a piston engine. But its way more efficient. Jeff has been running this setup since the videos with no issues!!
I've literally owned five 1st gens and keep selling after they break down- I cant figure out one thing or another. - No local shops help. I wish I was your neighbor!
Found this dude a while back and he definitely knows his stuff. I’ve been saving up the sniper vids to cram them all at once. Also, sad that rotary knowledge is slowly starting to become less common but at least we have people like rad potential, angel motorsports, all of mad mike and all of his people, all the crazy bastards in NZ/AUS. All goldmines to a beginning rotary enthusiast such as myself.
Do you mean Audi S4? Because first off if that’s the case you’re one brave dude, lol. Second if that is the case I have a friend who is an anything Audi genius. His dad was a tech for them and he learned everything from him.
The only thing is it just doesn't look as cool as a weber, if they could just have a similar looking airfilter like the Weber type then it would be the go to..
@@RADPotential thank you rad, been running a 650 dbl pumper with a wet shot for years. The msd on leading has been saving my plugs. Since I watched your work with the sniper, I bought one!!! For boost, rebuilding my 12a bridge with a camden blower. Didnt want to go back to stock dizzy. Cant wait to see what fat port time does to it lol
I sure will bro! Do you have a face book? Waiting for the fuel pump and regulator holley said Nov 11, they dont have a super sniper kit with everything you need.hope they get here sooner
From the owner; starts first turn of key with touching gas pedal. Very clean pull to redline, butt dyno quicker than fat Nikki and very much snapper. Still need to let it warm up a little before driving off, same as any rotary; should always like them warm up. Little stumble at steady state cruise around 3K RPM.
I tune this ecu for rotaries. I've done them out at RPM Motorsports or remote tune them.
You have contact info? I have a sniper on a large street ported 4 port 13b.
How can we contact you!
What’s your number
Agree, Holley need to acknowledge rotaries and that there is a market there
thanks so much for taking the time to do so much for the rotary community. you're the man!
was already gonna put a Sniper on my 1979 Grumman StepVan with a 350ci, and these vids just helped convince myself and my daughter that her 1985 12A RX-7 needs one too. I'll try and get a buy one, get a second with a rebate offer ;)
I came across your channel while pondering a new project: a rotary powered home generator, around 10kw. I was researching stand-alone EFI systems for a rotary to make the generator more automated. Will keep the sniper in mind.
Great informational video! Going 3tc holley sniper! Lots of info from you..also have 82 fb Going sniper soon..
Thank you my dude. Your channel is helping a lot on my rx7 84 journey
Awesome your keeping rotary alive , im building a first gen for my daughter and i just recently bought another first gen for myself both 84 1 stock 12a and the other fully built 12a that i have with a SE center iron doing a 12A fuel injection setup with going to use a fd lower and upper intake manifold that holley sniper now im thinking i should get for my stock 12a
I really appreciate you, so much!! I am afraid I won't be able to find a intake manifold when I finally get to working on my fb... It really bums me out
Thanks for documenting the whole process! I’ve been really interested in getting a sniper setup for my ‘88 RX-7 NA but can’t bring myself to take the stock manifold off because it’s running so well. I’m glad there is more and more info surfacing about sniper use on rotaries. As the stock parts become less and less available, these snipers are going to be a more common occurrence, and I’m excited for that!
Damn. I'm going to watch that build series. Yes the kit is expensive but with fuel prices high you can make the assumption that you're going to ride further with a full tank (free way mostly)
Excellent, thank you for taking the time to do this. Very timely, we were looking at testing the Sniper set up on a 12a as well.
thank you for all your hard work and information
Very interesting. I'm a traditionalist so if I manage to rescue the 1982 GSL I'll probably start out with the stock Nikki but I might go to the Sniper one day. Or......if I find the floors in the 1981 with moss growing on the carpet are solid and it won't be too cost prohibitive to rebuild the interior maybe I'll restomod it and do the Sniper there. But I'm new and have much to learn.
From the owner; it’s quicker and snappy. Looking forward to solving minor cruising choppiness around 3K. Like that is more rowdy.
I just finish mine last night tomorrow start lets see 🙌
This video makes me miss my RX7s again!
Need more rally content! Great video man.
Working on it this week. Thanks!!!!!
Just a quick question, I want to go with a sniper set up on my 12A (its an RX7 12A in an RX2) which has a big street port, big exhaust ports, and the same style of RB street port exhaust system the '67' RX7 has. Would you still use the 2-barrel Sniper or go for one of the larger ones like the 4150 stealth? I would be setting the rev limit at 8000 because I use standard Mazda apex seals. 2 or 4 barrel Sniper? Which do you think?
Great video! Don't care for efi but ida isn't great either. What do you think about dual SU's for a 280z?
Super awesome! Next level of this is hopefully trying out a sniper on a full bridge or even half bridge car for more reliable and smoother running with epic braps!!
I know of some folks running these units on ported engines with no issues!! They work very well,
@@RADPotential that's what I was hoping to hear. Like you said I think this is the future for carburated rotaries and honestly most old carburated vehicles
As soon as I heard about the sniper I thought, seems like that would be sweet on a rotary. Been waiting for people to start giving it a go. Thanks so much for documenting this and everything else youre doing for the rotary community. Especially the fb's. There is not a lot of informative videos on those babies, which is what I have. Keep it up! Hope your channel continues to grow.
thank for all the information
You are right! Parts are hard to find. I'm looking for the Trans cross member bushings and nobody has them..my clutch is done..any idea where I can find them? Or will it work ok with home made rubber on both sides?
It's a universal trans mount. The bushings I would start with energy suspension and see if you can make something work. Maybe a sway bar end link bushing
Doubling the displacement in the computer makes sense.
From what I'm told, when sizing a turbo or supercharger for a rotary, you effectively have to double your numbers and run a larger turbine or blower than convention might indicate. Rotaries are weird and flow twice the air of a piston motor of similar displacement
hey buddy. Mark Smith said to check you out. I told him I have been. do you have a video with removing the rats nest from an 85 rx7 12 nikki?
Im thinking about picking a holley sniper up as well.
Could your tuning problem be with the intake? I know people been having problems with the efi on dual plane intakes solving the problem by machining out the center on the dual plane intakes. From holley tech - You may find that to get the Sniper to play well with a dual-plane that you'll have to install a tapered open spacer so the Sniper sensors can see what's happening with vacuum and for the IAC to function properly.
It was just a tuning issue. The car has been tuned by a professional Tuner and it's smooth as gravy!! But I'd think that dividing the 2bbl sniper, one barrel to each rotor would increase the snipers ability to self learn
thanks to you buy one for my 13b
Just finish my install with your videos thanks. I installed a 4 barrel Sniper EFI engine getting gas but it’s flooding no start. Any advise on upgrading to MSD coils, wires and spark plugs. Spark plugs are wet with no start.
Did you ever fix the issue ?
@@imaboss1998 Yes the car runs great now.
Hi rad can you make a video of how to install a msd box
Solid info. How does the timing work though?
Stock distributor. The Sniper does not control timing at all. Just reads it
One thing I want to point out that would explain it starting better on a 140CI setting is this: Despite technically being called a 1.2 or 1.3L, that is calculated per combustion chamber/event, and each rotor has THREE of those per revolution. So technically, a 13b is 3.9L. This explanation also works to explain why these engines require such LARGE turbos, particularly on the hot side.
Updated knowledge: It's double the firing interval, not triple. 3 displacement chambers for 3 rotor faces, but it only fires twice per rev not 3x.
As carb rotaries tend to run quite rich (especially on startup) plus spit out unburnt fuel when operating, does the Sniper correct that?
It's still a bit rich for start up compared to a piston engine. But its way more efficient. Jeff has been running this setup since the videos with no issues!!
Quick question I bought a 12a engine dismantled it came with two flywheels and one counter weight is the a way to match them so can use the right pair
Mazdatrix has a directory on their website
I've literally owned five 1st gens and keep selling after they break down- I cant figure out one thing or another. - No local shops help. I wish I was your neighbor!
:((((( wish i had the knowledge as well
Just start watching the videos here. You will learn!!!
Found this dude a while back and he definitely knows his stuff. I’ve been saving up the sniper vids to cram them all at once. Also, sad that rotary knowledge is slowly starting to become less common but at least we have people like rad potential, angel motorsports, all of mad mike and all of his people, all the crazy bastards in NZ/AUS. All goldmines to a beginning rotary enthusiast such as myself.
Damn how many RX7s do you have? I cant find one where I'm at.
I have enough :)
Could you explain what it would take to put the motor and ecu/engine harness out of a 88 na s4 into my 84 gsl
Do you mean Audi S4? Because first off if that’s the case you’re one brave dude, lol. Second if that is the case I have a friend who is an anything Audi genius. His dad was a tech for them and he learned everything from him.
@@notmychairnotmyprblm no I meant 88 na s4
Do sniper Holley work with turbo 12aturbo?
You would need a different intake manifold and piping but you could make that work most likely
What is the mpg now?
do u run pre mix or it's has oem OMP
Premix only
asked holley if sniper would work on rotary & they said no. RAD ROTARY POTENTIAL EFI SYSMS INC -_-
The only thing is it just doesn't look as cool as a weber, if they could just have a similar looking airfilter like the Weber type then it would be the go to..
I dont disagree. But it works way better than a weber does with a lot less effort
Could it run with a cd on the leading side
Yes. You can control one coil output with the sniper. So leading and use the dizzy for trailing
@@RADPotential thank you rad, been running a 650 dbl pumper with a wet shot for years. The msd on leading has been saving my plugs. Since I watched your work with the sniper, I bought one!!! For boost, rebuilding my 12a bridge with a camden blower. Didnt want to go back to stock dizzy. Cant wait to see what fat port time does to it lol
Keep me posted with your build, especially the snipers reaction with the big port! what is your eta on completion?
I sure will bro! Do you have a face book? Waiting for the fuel pump and regulator holley said Nov 11, they dont have a super sniper kit with everything you need.hope they get here sooner
who's Holly and why does she like sniper rifles?
Can it handle boost is the question 😏
It can. But it cannot control timing
Thanks for the quick response 👍. Please keep us updated..(problems or improvements)
anyone want to trade me a holley sniper :))))) i have a full airtekk kit sitting around ;)))))))