Holley sniper stumbles on acceleration

Author: sjtf

August undefined, 2024

Nettet19. mai 2024 · Ive been running a Holley Sniper for a about four years now. In the last year I have been struggling to fix a consistent hesitation I get under acceleration after … Nettet2. mai 2024 · There's a weird, slight and inconsistent drop in vacuum at idle, no more than a couple inches, but it remains steady under hard and mild acceleration. Sorry, it's a …

Car falls on it

Nettet4. des. 2024 · Holley recommends the No. 1 position for idle speeds below 900 rpm and suggests moving to the No. 2 position for engines that idle above 900 to 1,000 rpm. Here’s a simple tip that can save tons of effort. Make sure the accelerator pump linkage moves the arm to the diaphragm as soon as the throttle is moved. Nettet20. jun. 2024 · Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & Base Timing Table (optimize ignition timing). I find the most helpful datalog function, is overlaying the datalog on your Config File. buly 1803 hand cream

Sniper EFI Backfire - Holley Performance Products Forums

Nettet14. apr. 2014 · When you accelerate AFR on the handheld swings as low to 8-9, then climbs back up. I had the issue with mechanical/vacuum advance distributor and the … Nettet711 38K views 2 years ago hesitation on acceleration carburetor Episode 480 We need to take our 1964 Falcon to the drag strip to get a base line for future modifications. But a hesitation in the... Nettet20. jan. 2012 · Trying to figure out my lean stumble when flooring it quickly. The engine is a 350 with Vortec heads, Comp 268H cam, air-gap intake, and new Holley 4160 … halcyon toy poodles

EFI Troubleshooting EFIand and EFI Tuning Tips - In The Garage …

Holley Sniper Whistle Elimination - YouTube

Nettet1. mai 2024 · Stumble on Acceleration (Datalog & Config Included). 05-02-2024, 02:52 PM. Hey everyone. I was wondering if anyone can take a look at this datalog of a short … Nettet14. mai 2024 · Maybe one of the Holley Sniper software knowledgeable can help. It should reset the fuel tables if you changed the CID and cam information, but I don't … buly 1803 orange blossom soap sheetsNettet18. apr. 2024 · Finally got my Chevelle out of the garage with the new engine this morning. I've ran the Sniper EFI system with the Holley dual sync on my old engine (SBC 350) … halcyon ts line

"Nettet19. jan. 2012 · I'm having a hard time tuning my Holley 4150 on my 1970 Z28 I recently had Hooker Super Comp Headers installed along with a Pypes 2.5" exhaust with cross-pipe to a single traverse muffler. Since these upgrades were completed my carburetor is having all kinds of issues. It stumbles between 1000 and 1500 rpms and runs … " - Holley sniper stumbles on acceleration

Holley sniper stumbles on acceleration

Solving Holley Sniper High Idle Issues - EFISystemPro.com

NettetHow to Tune Acceleration Enrichment in Holley EFI // Terminator X, HP, Dominator & Sniper once again, i made a video too long. my screen recording software is wigging … Nettet31. mai 2024 · Don’t Stumble. With throttle body–-style EFI, if the engine idles decently but stumbles slightly off idle, try adjusting the idle and / or cruise air/-fuel ratio slightly richer. This can help overcome an off-idle stumble. This assumes that the ignition system has sufficient initial timing.

Did you know?

Nettet13. mai 2014 · If your car or truck is equipped with a Holley four barrel carburetor and stumbles upon acceleration, more than likely the carburetor needs an adjustment to the accelerator pump assembly. This assembly delivers an initial shot of fuel in the right amount, and duration, to provide crisp throttle response right off idle. Nettet2. mai 2024 · The idle is on the rough side, with vacuum under 15 inHg. You can check my cam specs in my signature. There's a weird, slight and inconsistent drop in vacuum at idle, no more than a couple inches, but it remains steady under hard and mild acceleration. Sorry, it's a bit of a random thought stream, I'm trying to give as much info as possible.

Nettet7. jun. 2016 · Issue: When cruising, I have a vacuum gauge hooked up to manifold vacuum and whenever I am under load or lightly accelerating, around 11" to 10" of vacuum it surges a little but not terribly then 9" to 8" of vacuum it stumbles, sputters, and almost sounds like it goes completely lean if not all air at that point then after that smooth as … Nettet4. des. 2024 · When you have a chance, capture a datalog when the engine is up to temperature (above 160°F) of about 20 seconds of pure idle with no throttle input and …

NettetHolley Sniper Whistle Elimination - YouTube 0:00 / 2:33 Holley Sniper Whistle Elimination Ed's Handyman Tips 370 subscribers Subscribe 35 Share 5.4K views 1 … Nettet19. mai 2013 · It's prollably the accelerator pump but be sure the secondaries aren't trying to open too soon. A smaller shooter will extend the pump shot duration. That could help if the engine were to hit hard then lay down shortly after.

Nettet6. mar. 2024 · There can be stumble issues if they open too early especially since the Sniper hasn't turned on the rear injectors yet. I'm trying to find what the TPS percent …

Nettet31. jul. 2024 · Holley Sniper EFI adjustments Zanes Garage 4.76K subscribers Subscribe 18K views 3 years ago Adjusting the acceleration enrichment settings on my Holley Sniper EFI on … bul-wrestlingNettet6. mar. 2024 · The engine is screaming for fuel in that area and the Sniper can't deliver because of the restrictions placed on Closed Loop. You may have restricted those areas for some reason, but a combination of low Closed Loop and an issue of actual timing versus what should be commanded both add up to problems. buly 1803 online shopNettet5. jul. 2006 · During wide-open acceleration, right before I go to shift from 1st to 2nd (4500 - 5000 RPM's), the car falls flat on its face. The car acts like the gas was turned off - no sputtering or backfiring - it just stops accelerating and slows down. When I proceed to shift into 2nd and get back on it, and the car briefly pulls hard, and then stumbles ... buly 1803 toothbrush