Holley Sniper EFI

[NJ John]

And, are the Mexican intake ends more restrictive than regular end castings or the plain CB ones. They look like they would flow more.
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
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[jimmyhoffa]

I am almost certain the Mexican end castings are more restrictive, so there is something of a horsepower wall there. You can be smart about cam decisions or rocker ratios or whatnot, but I'm not seeing 150-175HP through them unless there's a snail involved.

It seems people are able to get roughly the same naturally aspirated HP through unmodified stock end castings as they do the Mexi end castings, if you really push it.
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1974 Chenowth 2RL #1244 Street Legal
My other car isn't ridiculous.

[modok]

The mexican intake has 28mm ID runners, while a german end casting is about 31mm ID

[TheVintageVw]

[boxer74]

[Leica356]

This is all new to me so trying to read everything available. It seems Eric at Red-E has really refined the Sniper 1100 direct 34pict replacement set up. I'm looking for recent feed back as it seems both the refinement and reliability of the Holley equipment has improved. I also see the Red-E is good for 175hp where the CB is 115hp.

[Chip]

[Alstrup]

[txoval]

Duel sniper setup would be interesting if possible. The draw of the sniper is the simplicity of the user interface and setup.

Now, other systems might be just as simple but I have no experience with them…could just be the fear of the unknown.

I always wanted to put a CB dual 48mm throttle body setup on my car but never pulled the trigger due to the unknown programming

[Alstrup]

[Leica356]

I personally have an Oldspeed 1955cc with stock single port heads and Engle 90 Cam running a 34 pict3 which sounds like a perfect motor to benefit from this set up. The engine runs great but just curious if this set up would give me just a little more HP/TQ as well as the other benefits. I'm currently not sure it's worth the money but sure sounds too good to be true.

[Alstrup]

[txoval]

I visited Red-E’s website and he does offer dual IDF and IDA throttle body kits using the Holley Sniper software with Idle air control.

My sniper experience is on my V8 Barracuda, which is very nice once setup. The setup includes several additional outputs that the sniper can control/monitor.

Fuel pressure, oil pressure, cooling fans, nitrous activation, rev limiter, etc

But you hit the nail on the head Alstrup…the value is the simplicity and ease once installed. Having access to a dyno and experience tuning IDF, IDA, Kadrons is becoming a lost art. You tell the Sniper system you want to idle at 900 rpms with an AFR of 14.7 and it does it…cruise AFR at 15.4, wide open throttle at 12.8 etc…all while learning the fuel map in between. It’s an expensive convenience, especially on a VW.

[Leica356]

Alstrup it has an increased venturi and has been rejeted. I'm aware of all the other limiting factors and never expected 175hp NA. I'm just curious if the EFI will or could make a little more HP/TQ than my set up is capable of. I do appreciate your input.

[Alstrup]

Tx. I totally see the advantages on V8´s and a few other setups. High power ACVW´s being one of them. Red E seems to have siphoned the worst problems out of the software in relation to them being used on ACVW´s. I´ve seen a 2332 with IDA style ITB´s etc etc. pulling 228 hp. Yet be docile enough to drive to the bakery sunday morning. BUT, those are MPI´s, NOT SPI´s.
I saw- and worked with a Holley 2300 on a Datsun 240Z. It never got to the point of working well, so we chose to remove it. In the end that guy ended up opting for ITB´s also. Needless to say that the engine became a totally different animal. Only downside is that it needs to be syncéd every couple of years, but thats a 1 hour job, so liveable.
Another guy wanted to install one on his hopped nup 2,3 Pinto engine because his carb was worn out and not adjustable anymore. I told him "hold my beer" After about 3 hours on the rolls, playing with timing and jets, a hotter coil and different plugs the engine ran butter smooth, the engine has more compression, better cylinderhead, better exh and a hotter cam (Newman P 41 I believe) Last year he swopped to the Sniper 2300 because he thought it could be better yet.- It got worse, quite a bit, but mainly because he did not understand the relation between ignition and induction. So he ended up coming back to us and asked us to dial in the system. It was a reasonably easy job for us, and we have to admit that the engine - did - pull slightly better power with the Sniper. Something like +5 hp on top of the 136 hp it had with the Progressive. Was those 5 hp worth about $ 2800 plus another trip on the dyno (?) Not in my book.
I have played with 2 1100´s on ACVW. Both on 1776 displacement. One was on a stocker plus that I have built myself, where the person just wanted something better (he thought) The engine - did - pull 5 Nm (3 lbs) more torque in the midrange. Peak power was the same and withing 100 rpm. Fuel economy improved a hair. That was it.
The other one was a classic example of the customer totally misunderstanding the whole concept with thinking that such a set up could remedy his poor choices inside the engine. Too much cam, not enough compression, huuge deck height etc. I had the car for about a week. I installed old 1200 rockers on the exh. (1-1) and a CDI then I made a rather funky timing curve for it so it doesnt confuse the O2 sensor. I was able to make it driveable, and it would idle fairly well at 1000 rpm.

I guess what I am trying tosay is, that if the engine will not run smooth with a stock or a progressive carb, it wohnt with a Sniper either. You inherit exactly the same problems. The only difference is that you can do the dialing in from the dash or laptop instead of getting your hands dirty.
As I wrote eralier, if you, like red E, live in an area where you have massive elevation changes there is the advantage of the system being able to somewhat regulate for altitude, that is a GOOD thing.

Leica. I for one would not be able to answer your question without knowing more about your set up. Intake especially. Since you already have a larger venturi installed my initial answer would be probably not. But you may want to let us know more, then we maight change our minds
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https://www.thesamba.com/vw/forum/viewtopic.php?t=435993

[Leica356]

Stock single port manifold.

[boxer74]

I ran the Sniper 1100 from Red-E in my Super Beetle all season and it worked reaosnably well. I will say that the fuel map scale Eric sets up is clearly meant for his altitude. I had a local Holley tuner adjust mine to give more resolution in the near sea level driving that I do near Toronto. I do enjoy the reliable cold starts. Having the idle control valve is nice for that. The learning feature is neat too but I found I had to limit the learning around idle and return to idle. Probably due to the long intake runners and not having perfect manifold heat, but it would always try to take fuel out of the map when returning to idle and come close to stalling out when coming to stop lights or stop signs. That area was tuned manually by driving feel and then locked in so the learning couldn't mess with it. Learning otherwise is allowed for other areas of the map.
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74 Super
84 Westy

[mikedjames]

[boxer74]