What's Inside A Sniper Stealth

I take apart a Sniper Stealth and show whats inside.

[@davidphillips3953]

Funny you mention the reason for the TPS, I run a full service repair shop and one time had to replace a super charger on a 3.8 buick, when she got it back she brought it back like 3 times because it "didn't have enough power to keep up with traffic" then of course we would drive it and it ran great, no codes, data looked great, then she would take it and told us it was a dog so finally I hooked up the scanner and went for a drive with her and it was great so we switched seats on the side of the highway and had here drive it and sure enough she couldn't keep up with traffic and I realized the TPS was only reading about 50% at the most when she said "that's as fast as it will go", I just kept encouraging her to press harder, she finally got it up about to 90% and scared the crap out of herself, we had a customer for life and she never complained about the power again, she just wasn't pushing the throttle all the way!

[@BlindSquirrelRacing]

Eric, thanks for the tip on the ferrite cores on the wires! I was fighting interference issues and looking for a way to solve it. The issues are real and you will pull your hair out finding them. These solved it 100%!!! I now consider them mandatory on every Sniper install.

[@claibornewoodlief8310]

Another good video Eric you did right about the census the map sensor and in the air temp sensor you were dead right on keep on putting out good videos hope to see the truck run soon

[@WeingartnerRacing]

Thanks for watching.

[@AtomicOverdrive]

Hey Eric, one thing lots of IT computer techs do is on questionable connectors like that. We toss a little hot glue on them on the outside of the connecter after they are plugged in. Just a small dab will hold really well. When you need to unplug them, a hot air gun or little alcohol will release the glue.

[@motorman111jld]

Nice! Great information! Thanks!

[@bdugle1]

Fascinating stuff! Thanks Eric!

[@WeingartnerRacing]

Thanks for watching

[@63turbo]

Generally speaking, the throttle position sensor isnt used for measuring the position. Its to detect changes in throttle position for acceleration enrichment.

[@pete540Z]

Thanks. I like the redundant setup. As you can see, like the Terminator TBI, the MAP sensor only reads from one "side" of the TBI. Put it on a true dual plane manifold without the center wall cut down, and your MAP signal is not smooth. That's been known to cause street guys that run dual plane manifolds problems.

[@davidleary823]

Just FYI the IAC and TPS are dodge Dakota and can be picked up at a parts store. I have seen a brand new Holley unit have the injector plug connection not even aligned and off to one side but just making a contact on the side of plug instead of in it.

[@v8packard]

Holley supplied the OEM Dodge throttle bodies, with the IAC and TPS, for many years.

[@WeingartnerRacing]

good to know.

[@motorman111jld]

That IAC and TPS is also used on several GM vehicles.

[@Levibetz]

If you wanted to keep a TPS on the carb but it doesn't have the provision, you could grab a suspension position sensor in the junkyard from like a gmt800 cadillac escalade. It should be just a potentiometer like the TPS that you can wire up to give some TPS input in the ecu. Then you can somewhat develop a fuel map based off your jetting, throttle position, rpm, and O2 readings.

[@WeingartnerRacing]

I will look into that.

[@jleatherwood2286]

Very useful! Thanks!

[@WeingartnerRacing]

Thanks for watching.

[@Go4BrokeOffroad]

It's cool seeing Holley uses ls3 Injectors. Easy to step up in sizes.

[@WeingartnerRacing]

I think these are shorter but I'm not sure.

[@dylanarnold4487]

I want one. Take my money lol great vidja 🤙🏼

[@WeingartnerRacing]

Thank you for watching.

[@my87z28]

Pretty cool, we are installing the same Holley Sniper Stealth system on my wife's '63 chevy II. Except the one going on her's is the 870cfm unit. We just got the battery reinstalled in the trunk and should get it fired up within the next couple of days. I'm nervous, we've done so much work on her car; heads, valvetrain, intake, efi, ignition, coolant system, brake lines, fuel system and computer-controlled OD transmission. I've read about all the PIA issues some people seem to have with these aftermarket efi systems. I hope everything goes smoothly. We started this project last September and my wife is a bit impatient at this point for it to get done.

[@WeingartnerRacing]

I hope it goes well for you.

[@keefespencer1173]

@@WeingartnerRacing can you put bigger injectors and change the MAP sensor out with a bigger MAP sensor on either Sniper setup to be able to make more Horsepower and to be able to put more boost or nitrous to the engine especially on the Super Sniper? because if you can and as long as you get it to run correctly and you are able to run any type of fuel you want to run I would think that would be the easier way to run a boosted application or if you wanted to run more than just one stage of nitrous I would think that would be the much easier and cheaper way to switch an older carburetor engine over to EFI and with the Super Snipers ECU you can fine tune everything and just run a separate data logger and have most of the sensors you want in one kit

[@vehdynam]

Interesting , thank you.

[@WeingartnerRacing]

Thanks for watching.

[@ZEPRATGERNODT]

Thank you

[@WeingartnerRacing]

Yep.

[@rodneygodin7773]

Love my xflow, been two yrs not one issue

[@WeingartnerRacing]

Glad its working for you.

[@jeremydawson5975]

I'm having alot of troubles with my sniper stealth I think the ecu took a crap I only have 2 injectors firing and the plugs are tight. I'm sending it into holley to get fixed and then sell. I decided to go with the terminator x stealth and it runs great plus you have the separate ecu you can mount in the cab. They're alot more tuning options with terminator x and its was definitely worth the extra money!

[@WeingartnerRacing]

I agree the terminator is the better unit.

[@christianginella5545]

Heah Eric, did you manage to flow test your sniper with a wide piece of tape or something else to see if you can increase flow by eliminating those grooves in the thoat to pick up some flow? I know that tape isn't scientific, but its a few thou rather than say 50 thou thats in each groove? Your videos are great! Keep up the good wook.

[@rotaxtwin]

Worst part of this video is seeing how Holley runs those cables in/out of the body. Most of the design is well thought out but it's too bad they didn't have an old military electronics guy on staff to stop them from going through with that design.

[@fast73nova]

Great video! Can't wait to see the new mill perform! I have a SS 1250 / hyperspark system on my nova with twin 70mm and it works great. I will reuse it for the 441sbc with 2x 78/75's but need to upgrade the fuel system. It is cool with the data logging. I was going lean under boost and I decided to check the fuel filter and it was Plugged! Replaced it and presto! Back to normal!

[@WeingartnerRacing]

Im glad it is working for you.

[@fast73nova]

@@WeingartnerRacing Yeah I guess I got lucky with 1 that works (so far) lol! It is a shame they have some issues. It has a lot of features and safety's that can be used.

[@edwincasanova8407]

Nice thank yuo

[@thetriode]

I had a Megasquirt I set up in a previous project functioning very similarly except that I also had set it up to control my timing as well. I interfaced it with a large cap computer controlled HEI Distributor so I didn't have to worry about timing control on a boosted engine which "can be" a problem for the blow through guys. Never got around to the boost but it made for a great setup on a budget for data logging and timing control which are arguably two advancements that made blow through a lot easier in the modern era.

[@LowDollarDude]

The Iac looks the same as one on a 93-02 Ram, which used a holley throttle body might be worth looking into 🤷‍♂️

[@WeingartnerRacing]

It probably is the same one.

[@nsmturbo5902]

Do you still have this? I was wondering if you could tell me if the threaded plug next to the throttle position sensor goes to the map sensor? Also is the map sensor port on the bottom tapped so I could put a plug in it? I plan on using this on a roots supercharger but I need run a reference line to the intake manifold instead of above the supercharger. Hopefully this makes sense, thanks!

[@johnbordman9072]

Hi Eric, What are the cord filters called?

[@glastornjet73]

Im sure that iac and tps are just factory gm lt1 stuff...

[@genemounce8302]

VERY helpful video. Cemented my decision to stick with an electric choke carb. #Ihatewires lol

[@johnbordman9072]

Never mind ferret cores Thanks !

[@Doc_Fischer]

Snuper Sniper Snealth …Snuper Sniper Snealth …Snuper Sniper Snealth …. A little while back I had pick up some of the older original Terminator model throttle bodies that were empty so I could set them up for my own application. Those sensors are all the same as these old models . If you check the paperwork it will give you the Holley part numbers , if you run the part numbers and look closely at some of the photos you can find the part numbers . They are Mopar parts for the air charge, tps and iac from say a 2005 dodge Ram. Half the price off of eBay than Holleys parts . I picked up parts from Standard , etc. on RockAuto. Injectors were ev6 Deka 80 lb . Originally

[@magnusdanielsson2749]

One should be able to place these carb in a few different directions I assume. Im considering one for my custom v6 but I dont have that much space to have in directly on top. Could you maybe measure the height of it? I think its around 4” ?

[@WeingartnerRacing]

I will try when I have time.

[@jeffdriver3000]

I like would like to put a sniper on my 1968 Mustang with the progressive throttle linkage but they have the ported vacuum line pulling from the rear throttle plate

[@WeingartnerRacing]

I wish the best for you.

[@johnrodriguez473]

I have a sniper EFI and I was going lean on me from the first time I put it on. After a couple of weeks of troubleshooting it, and finally getting a mirror and conforming that the rear driver side was shutting off. Tore it apart and found what you had. Injector plug was not plugged in correctly. It's a soft plug and can see why it took vibration to make it break contact. Other problem with them is I've had the tps slip on the shaft and hang up around 80%. I carry a couple new one in glove box as I've had it happen a couple times so far.

[@WeingartnerRacing]

That sucks. I never had tps issues.

[@coryholbrook4643]

Think that carb hat is going to flow well enough for the new engine? Don’t know the specs on it, CID, RPM, and HP but I’ve been looking at them for mine but i never thought they would get enough flow through to keep me from losing out over my open cleaner setup. Also running a Stealth system on my 383 SBC, 6500 rpm, ~500hp.

[@WeingartnerRacing]

The air cleaner works great. It went slower with no air cleaner.

[@coryholbrook4643]

@@WeingartnerRacing I was taking about the closed carb hat with the 4” silicone tube attached to it @ 1:25. Air cleaners will always beat an open top carb/throttle body given proper airflow of course.

[@nhragold1922]

The tp on my dragster... 100% or idle 🤣🤣 throw in a bunch of throttle rips and close enough. Won enough races without it.. but the data logging is pretty darn nice

[@WeingartnerRacing]

Are you running EFI or Carb.

[@nhragold1922]

@@WeingartnerRacing Nickerson 1250 carb. Mostly bracket race. Won lots of $ without data logging, but having the extra info, especially with the very large $ races has proven extremely valuable. Your channel has also provided me with great information. One of my favorites! I'd like to send you a set of cylinder heads to be honest.

[@oikkuoek]

The idea behind this unit is solid, but why does it have to be so badly put together..? When your MAP-sensor membrane melts from the fuel, or crumbles with heat, the whole control unit is done. And more. At least a half a dozen points of inevitable failure, and when any of those points give in, the car either stops working or grenades the engine. Are the higher end models equally as bad?

[@WeingartnerRacing]

I don't think so.

[@mr.espeedshop4839]

Yeah personally I hate the idea of everything being contained in the throttle body. If I were to do a tbi, I'd have to spend the extra on a Holley terminator ecu

[@208Concepts]

@@mr.espeedshop4839 I used the garbage factory TBI unit and a Megasquirt on my conversion 😁. I should pick up a used Sniper and run it on a similar ECU setup

[@SwingingInJoggers]

"Super Stiper Snealth"

[@frankkoppen7281]

at 10:45 a "porter" would put a large radius on the hold down plate . just saying. Also, just for fun , with so many heads standing up everywhere, has any ever fell over , by you or others ? any good stories there ? great channel /content by the way 👏

[@KingJT80]

have you seen any of his porting videos? i think he knows a thing or two about it.

[@WeingartnerRacing]

Thanks for watching.

[@malbirrell]

Thanks for the video. Now I know what not to buy unfortunately

[@WeingartnerRacing]

Thanks for watching.

[@anthonyking4387]

Did you say it takes a diff super stealth 1250 for methanol then e85? I really didnt catch that! We have the same problem! Thank you very much!

[@ScottKirk-Notredcrew]

No Sniper is rated for use with e85

[@anthonyking4387]

@@ScottKirk-Notredcrew i know people who use it wt e85 so hows that work

[@ScottKirk-Notredcrew]

@@anthonyking4387 You can do a lot of things in this world that are not recommended. Just know if there's problems and you send it in they can tell if e85 has been used and your warranty will be void

[@anthonyking4387]

@@ScottKirk-Notredcrew Race stuff only has a two peice warranty anyways! If it breaks you get to keep both peices anyways! Just dont leave e85 in the system or e15 or e10

[@jasperpipes4222]

Tried two of these on different cars. Nothing but problems with rf interference. Went back to carby and never looked back.

[@davidleary823]

I have done battles with RFI and it ended up being my air cleaner. Hard to believe but that was it.

[@WeingartnerRacing]

It can be a pain.

[@anthonyking4387]

@@davidleary823 what kinda air cleaner? K&n? Or a dirty one?

[@davidleary823]

@@anthonyking4387 it was a metal race type filter, actually picture a 12” wide 2” tall velocity stack with a satainless screen. It was picking up rfi from the dizzy. I’ve also had rfi from a bad plug wire terminal at the dizzy end of the plug wire do the same.

[@anthonyking4387]

@@davidleary823 i gotcha!

[@rocsti5402]

My add is bad right now but I want to use a sniper EFI but with normal injectors in my lower intake for my port injection.... Any ideas.

[@rocsti5402]

Seems like it wouldn't be impossible to relocate them after watching more. But I need 6 injectors not 4 and idk if it can be adjusted if injectors are swapped in the settings.

[@WeingartnerRacing]

Not long enough wires for injector.

[@rocsti5402]

@@WeingartnerRacing I figured making the wires longer wouldn't be a huge issue... But at that point there are similar other options like a EFI bare throttle body and megasquirt or w.e .

[@deankay4434]

Why would you buy something that has so many problems at any given time? Never heard of or seen so many problems with something that needs to look like a carburetor yet work as fuel injection, especially something that does the exact same thing a TBI that is 40 year technologically. Does it blink codes from lowest to highest 3 times each and start over again or does it require you to play with the Holley video game on you tab top or some cute graphics like war craft? It is either electronic fuel injection or not! 11 psi - 13 psi, or maybe 32 psi to 34 psi or perhaps 50-54psi EFI like the kind that work?

[@drcolster]

HEY ERIC, GREAT INFO.. DO YOU KNOW ANTHING ABOUT RUNNING THE HOLLEY X FLOW 800HP UNIT,AND RUNNING IT ON E85.. FOR N/A USE.. DO YOU KNOW OTHERS THAT HAVE DONE IT ??.. THANKS

[@BlindSquirrelRacing]

I'm running the larger xflow unit on e85. Works great.

[@WeingartnerRacing]

The only downside if you are on boost you can run out of injector.

[@drcolster]

@@WeingartnerRacing THANKS FOR REPLYING.. I'M LOOKING JUST N/A USE. I AM LOOKING TO MAKE 800-850 HP FROM A 422CI SBC WITH 13* ALL-PROS..HIGH PERFORMANCE STREET USE MAINLY. WHAT PT# YOU RECOMEND, AND ANY OTHER TIPS ??..ANY CHANGES TO COMPUTER ?? ,BIGGER FUEL PUMP ??, IM A WHILE AWAY, BUT KNOWLEDGE IS THE KEY TO GETTING IT ALL RIGHT.. THANKS, I USE TO PORT HEADS 20 PLUS YEARS AGO, STILL DO A SMALL JOB HERE AND THERE.. YOUR WORK LOOKS SPOT ON..AND I'M KEEN TO SEE MORE OF THOSE 13* BRODIX'S YOUR DOING, MINE ARE ALL CNC DONE, BUT THEY MIGHT GET A LITTLE MORE WORK.. KEEP WELL...

[@rodneygodin7773]

Good luck on sbc at 800hp, u should right a book on it cause ur the only one running it on street

[@drcolster]

@@rodneygodin7773 HAVEN'T DONE IT YET, DOING THE RESEARCH.. I HAVE BEEN TOLD SOME GUYS HAVE.. GOT TO KNOW BEFORE I BUY.. OR IT'S A GOOD OLD CARBY..

[@Peewee0413]

epoxy a fabricated tiny box to the ecu around the existing map with a threaded barb on it to get a MAP reading..

[@WeingartnerRacing]

I might try that.

[@Peewee0413]

@@WeingartnerRacing Or find a map sensor you can put directly to your carb that can send a ( correct votlage) signal to the TPS cable, and use the log that way. 1-5v? Wont have to worry about pressure waves or delays in tubing. would be much more stable. Where there's a will there's a way... I know super snipers have extra inputs and outputs. not certain about the stealth. but I'd probably try the TPS mod actually.

[@WVXL64]

Man, I'm so torn. I want to run a pair of SS1250's on my blown 496 because I want to keep as close to a classic look as possible, and I want to keep thenintake charge cooling or a carb/tbi, while being able to run 2 tunes (gas or E85), but keep hearing the Terminator X is the superior system. Do you think 2 of the SS1250's would keep up with a blown big block?

[@WeingartnerRacing]

If its on gas it should.

[@faststang85]

Id rather run the terminator with port injection with the carb style tb. These things ive heard nothing but issues

[@WeingartnerRacing]

I think the terminator is better.

[@dennishay1091]

HAS ANYONE RAN A SNIPPER OF OF A HOLLEY HP ECU

[@WeingartnerRacing]

Not yet but an interesting thought.

[@faustthehammer8706]

Pretty.sure thats the same as a gm tbi plug looks 100% like a gm anyhow

[@WeingartnerRacing]

Could be.

[@boharris8179]

How can we get a Snelth😂

[@georgekalafatis7286]

If you have to pay a tow truck one time to bring it home because that junk failed you'll wish you left the carburetor and mechanical pump on there

[@WeingartnerRacing]

I have redundant systems so I can switch to carb easily.

[@georgekalafatis7286]

The money that you're wasting to buy that junk just put a little bit more fuel in your truck and drive it besides I see a lot of dependability failure right there that you're pointing at

[@WeingartnerRacing]

When the sniper was on it it actually worked fine but I also made it easy to switch back to a carb.

[@suicidal_racing]

check out tinker electronics dig dash.$550 for a 7" screen an gives you some more outputs/inputs

[@WeingartnerRacing]

I will look into that.

[@ZEPRATGERNODT]

Doesn’t Matt use those?

[@boharris8179]

How can we get a Snelth😂