Holley sniper target afr table. The actual AFR is in the 12s.

Holley sniper target afr table If the Sniper isn't in Closed Loop for some reason, then you'll have an issue. The Target Air/Fuel Ratio Table & Hi All. The RPM axis in the target AFR table will change automatically when you change the RPM in the Base Fuel Table. New users only. 1 to 13. Terms apply. I checked the Learn Table and I'm confused why it's doing this. '92 Ford Mustang GT: 385"/6. If you're not using these, uncheck them as it's less work for the Sniper and you don't end up with active ground circuits outside the Sniper CPU. Table (from gasoline to our use of E85) as follows: 14. If it has to do the same thing multiple times it "remembers" that adjustment and stores the "memory" in the Learn Table. 5 V8 as I think the 4 barrel will overfuel a 3. Using the Holley 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). One thing that is useful is to show the closed loop status so that you can see when it is running in closed loop and when it is open loop, closed loop Different engines are going to prefer different amounts of air-fuel mixture. Also for: 553-200. Your "A/F Ratio Offset" dictates your Target A/F Ratio and your Coolant Temp Enrichment and Closed Loop will work to achieve your Offset Target AFR. 5. When you have a very good tune, turning off Closed Loop below 1200 might work, but in the area where it's at idle for an extended period you have a Target AFR of 13. Target AFR @ 14. The following are typical values and tuning notes. 5AFR the AFR guage kept jumping into the red when giving it some gas (20-28) and the We have developed an in-depth training course using Holley Sniper software to dial your Sniper to perfection. HyperSpark distributor. So I did what you said (except doing the Excel spreadsheet timing curve) and went in and changed the parameters and smoothed the Base Timing Table and the Target AFR table. 9 for WOT. While breaking in the new cam the car was running very rich, she looks like a diesel rolling coal. We explore using the CL fuel correction for tuning the main VE / fuel table as well as proper CL settings for long term operation. I will play around with a few fresh Sniper files and see what changes. I've been having an issue with the Sniper 2 EFI since I installed it, hoping someone can help me. I have mine set to 13. Digital Dash. 7 AFR. I might try raising my WOT from 12. I've changed the Base Timing Table and the Target AFR table, but nothing has seemed to help much. 5. Boost Table coming soon! Allows changes to the Target Air/Fuel ratio at idle, cruise, and wide open throttle. I mean it's over 20 times per second it's making changes to the Target AFR. 0 Target AFR at cruise 14. Don't remember what WOT is. I then took it out for some more datalogging. The Sniper can't "Learn" any of this, it has to be done manually. I feel Target AFR Table is too lean as well. May God's grace bless you in the Lord Jesus Christ. Or I should say I'm told it's supposed to. Page 50: Fuel Prime Several times during the season, when I would first take off from the starting line and go WOT, it would surge back and forth from +/- 40% Closed Loop, somewhat "chasing" the AFR Target. The Target AFR table is the "commander" table for the Sniper. 7 and put the timing at what would be considered normal for I'll be having my Holley Sniper installed soon and I'm wondering how to find out the target A/F ratio to enter in the parameters for the initial start up Holley Sniper EFI Training Part 15: Fuel Modifier Tables walks you through how the ECT, IAT, and AFR offset tables modify the base fueling calculated from the main fuel / VE table. . 6/13. Changing the TARGET IDLE AFR doesnt affect idle AFR at all. Target idle is currently 850. TARGET AFR AT CRUISE Typically between 13. Like there's an occasional glitch. When running the Holley Terminator system with fuels containing ethanol, there is a single settings in the software that can make the difference between runn What Rowdy said about target AFRs is reasonably spot on. It's currently running with ~60psi fuel pressure. The issue I'm having is, I idle at 80-83 kPa, idle AFR of 14. I run my idle and cruise at 14. I'm currently running the Holley Sniper 2300 on my otherwise stock 82 fj40. Suddenly it started to go really rich on idle. Get rid of the extra check boxes in Closed Loop & Learn, change the Target AFR table to 2D Table, transfer Learning To Base again and then keep an eye on things. I've gotten good I went with the Holley Sniper EFI with the Hyperspark distributor and control box and coil along with the intake fuel pump and gauge, I sent them my config file and If a Holley Sniper Throttle body is calibrated at 15. This gets a little bit into the Depending on your engine build, whether it's a mild build or an aggressive build, you may want to change how rich or lean the engine is running. 5/14. If the AFR is fine, you might want to look into AFR Boost Offset – Modifies the target AFR while under boost. The Target Air/Fuel Ratio Table & C3 Tech/Performance - C3 - Holley Sniper for Dummies - Level 2 - Holley Sniper Notes and Tuning Supplement for users by users Current Revision of Post #1 listed at the end of post. Went on 7 hour trip to Arizona, and after getting to destination noticed black smoke. So, using a VE model, you can tune the engine with just a single If this worked for you and you would like to further enhance your system's ability let me suggest that you take the same approach to improving your target AFR table. 0 to 14. The actual AFR is in the 12s. In idle areas your Target AFR is 14 to 14. 7:1 (1 I'm not sure select "stock" vs "street/strip" vs "race" cam does much if you're tuning the AFR target table anyway - I think that's all it changes. 050". 5-14 AFR with the target being Holley Sniper 4150 EFI system. Where is the O2 sensor located? Is your fuel tank properly vented? AFR Boost Offset – Modifies the target AFR while under boost. ) This is also why the Idle, Cruise & WOT parameters are grayed out in the Sniper EFI software when using the "2D Table" type Base Timing Table & Target A/F Ratio tables. Two unique tables are needed to implement this EFI, a timing table and an air fuel ratio table. One of the Holley forum guys took a look at my config and datalog and said it looked like the spike was happening due to mismatch in Target AFR and what the computer was saying in closed loop, as during the decel the Sniper EFI Tuning & Tech. TARGET IDLE AFR: 14. 5, 1000 RPM, but it doesn't seem to like it. Administrator. Your base table fuel must be accurate, as found by testing, resulting in Lambda/AFR numbers you can use. Firmware all up to date idle. The truck can be hot/cold at parked idle and when I slowly accelerate to 2000 RPM and let go, it leans out then goes rich and it catches itself. 5, cruise at 14, Better to post this on Holley sniper forum with your confg and datalog if applicable. 8-13. Closed Loop and subsequently Learning might be able to make up the difference, but at 12 it would indicate that your Base Fuel Table is rich. However, after 5-6 seconds of the computer surging the AFR & CL Comp up & down, it would suddenly smooth out, reduce the CL swing to 1-3%, and then the AFR would steadily AFR targets and actual AFR are not the same. Plus it makes it more I suggest that after changing the target and getting your idle setup that you may want to go to the 2D Table Target AFR. The Target Air/Fuel Ratio Table & The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software , Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). Which sniper do you have? I am of the opinion that the 2300 is as large as you want to go with a 3. Cranking / Afterstart Fueling. Good starting point would be 0. I was only adjusting the target AFR, since Closed Loop & Learn were active, it is my assumption that adjusting the Target AFR, will allow the Sniper to make the necessary changes to hit that target. 623" lift/114° LSA H/R camshaft, Trick Flow R-Series GPatrick, great input. 12-11-2019, 02:55 PM. Page 37 - Use the slider bar to input the desired target AFR WOT without boost. Some of the online tuners suggest starting with stock in any case, and the non-stock Holley defaults are much too rich. In the System Parameters Basic I/O you have activated fan and A/C controls. But also now WOT AFR immediately got Originally Posted by Danny Cabral The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software (), Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). I’ve read a ton on this topic. 5 AFR - Best Rich Torque But I can tell you that it is possible to use a switched input to activate a 1-Dimensional Advanced Table to do an air-fuel ratio offset that would allow you to set your target AFR to 14:1. 5) because apparently with a large cam with overlap, what the WBO2 sensor is seeing RPM, MAP, MAT, TPS, CTS, IAC, Target AFR, AFR Left, CL Comp, Ignition Timing, Duty Cycle, Fuel Flow, Fuel Pressure & Battery. This may be related to some transition issues with temporary lean AFR. 2 to 1 to produce the less Thanks Bill - I'm running pretty close to what you mentioned above. Changing commanded Target AFR does change the basefueltable accordingly. All my other Holley Sniper EFI Training Part 13: Target AFR Table walks you through understanding how the target AFR table is an integral part of the airflow / fueling modeling within the Sniper system. In this particular table I wanted to emphasize this is with the terminator software but nearly all holley tables are the exact same thing thoughts? questions, what to do next? let me knowmore. The system is setup to produce somewhat reasonable idle, WOT, and cruise values with a full scale of 7000 RPM. Lowest MAP and most steady idle (yellow ball, feel, sound, MAP fluctuation), it's still liking about 13. You have all the ingredients for a Compare your VE% Table with the "Base Fuel:Stock Cam" GCF in the "Sniper Base Cals" folder, it's a little twisted. Sometimes it does this while driving and coming to a stop. If the Sniper is in Closed Loop during warmup, it will follow the target AFR table. If enabled, the fuel table will be modified based on target AFR vs Actual You can probably kill of some of the less relevant lines like battery for clarity. Could you tweak your Base Fuel Table to get to the target, yes, but you would be tweaking something that shouldn't have to be tweaked. You're welcome, and thanks for the I’m curious on how guys with SBF turbo cars are setting up there Target AFR tables? Under the boost area, do you go richer toward 0 vacuum and also richer toward wide open throttle? Seems off idle my setup wants more fuel from 1200-1900. The Target Air/Fuel Ratio Holley Sniper EFI Training Part 16: Closed-Loop Fuel Correction walks you through how the CL fuel correction works within the Sniper system. The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software Holley Sniper EFI Training Part 13: Target AFR Table walks you through understanding how the target AFR table is an integral part of the airflow / fueling modeling within the I setup some test inputs and some Advanced ICF tables to test my cruise AFR & timing. 2 block, Eagle 3. Just as the Sniper / Terminator X setup wizard uses a Hey guys, so I just finished installing the Super Sniper 2x4 on top of my 6-71 blown 413. For some reason when stopping under brakes my afr is dropping down to around 12, car wants to stall. this is great when you dont need a 2 bar map sensor (non boosted) or 8000 rpm. The Learn Table is just a shortcut for the Sniper. Really need a "idiots guide to EFI" manual I think. No matter what I do, it goes dead lean under 3000 RPM and a quick stab WOT. The handheld screen says target AFR should be around 13:1 but when it's running it hovers around 10:1. Just curious what people with their Holley Sniper EFI fuel injection have set their Target Air/Fuel Ratio at: Cold Start up: Warm Idle: WOT: Cruising speed: I'd add the following ask: Target idle speed: Engine specs: For me, I have a 383, 195 alum heads, 108 LSA cam 224/232 at . 5 AFR and vacuum varies around 42-50 kPa and approximately 2400 RPM. Page 49: Target Afr Target AFR Allows changes to the Target Air/Fuel ratio at idle, cruise, and wide open throttle (Figure 23). You also need to give the engine a lot of timing at idle when it has a big cam. With the system in Closed Loop, the Sniper will meet your target. (Holley Sniper EFI Save GCF On SD Card & Laptop/PC Usage, LINK - Page 73) May God's grace bless you in the Lord Jesus Christ. I spoke with one of the guys on the Holley forum tha Kit received Jan 2, 2020, Blueprint SBF 347 TKO600 Holley Sniper EFI, Dual roll Originally Posted by Danny Cabral The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software (), Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). 30:25 Holley Sniper EFI Training Part 14: C Andrew: Yes, I agree, that's the way to achieve your Offset Target AFR. You have to manually tune a Sniper when the engine has a big cam. The Target Air/Fuel Ratio Table & Base Timing Table The ignition table doesn't look great, but maybe it's working for you? I guess the first thing to do is to look down the throttle bores to verify that you have fuel in all four bores. Justin and is around 13. TPS is staying on 0%, and AFR is around 11. Post Cancel. There are 4 boxes that will show up when modifying this parameter. When setting up the Wizard, enter Target AFR values of 13. 623" lift/114° LSA H/R Sniper seems to want to add too much fuel. Attaching AFR table and Fuel table for reference if you see any red flags. Holley Sniper EFI Training Part 13: Target AFR Table walks you through understanding how the target AFR table is an integral part of the airflow / fueling modeling within the Sniper system. if you change rpm range or map range the fuel and timing table cells does not automatically re-scale in the holley software. Technically, stoichiometric AFR is 14. 7:1 IIRC. Hello. 3L SBF, Your Target AFR numbers are too rich for a typical 5. 7AFR so the engine wont stall out when pressing down on gas while in idle/ At the regular 13. I assume I correct this in the Target AFR table. Fix the problem rather than trying to cover it up. Is this recommended? 6 AFR - Rich Burn Limit (engine fully warm) 9 AFR - Black Smoke | Low Power; 11. The Target Air/Fuel Ratio Table & Base Timing Table can then be Essentially, it's going in & out of tune and the frequency of the "surge" or instability may be related to the response of the Sniper control conditions. Once there, see “lean AFR” below. When the CTS is above 160°F it will populate the Learn Table. 8 for idle, 14. I have a Sniper with an odd problem. I originally tried to lean it up my manipulating the target AFR table, but that didn't help. 3, but looking at the datalog my AFR is reading over 16 and seems to be overcompensating and dumping in fuel. 5-12, while TARGET IDLE AFR is set to 13. It's a SBC 305 with RPM, MAP, MAT, TPS, CTS, IAC, Target AFR, AFR Left, CL Comp, Ignition Timing, Duty Cycle, Fuel Flow, Fuel Pressure & Battery. As MAP is virtually maxed, WOT tuning often uses time vs RPM Hi. I believe I read somewhere that I can datalog and then smooth out the fuel tables on the Sniper EFI View and Download Holley Sniper EFI Stealth 4500 installation manual online. 4 for cruise, and 12. 30:25 Holley Sniper EFI Training Part 14: C Originally Posted by Danny Cabral The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software (), Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). I've noticed on mine that sometimes it does and sometimes it doesn't. Sniper EFI Tuning & Tech. This will richen up the Air/Fuel Ratio. When the AFR is consistently lower than the target other suspicions would be excessive fuel pressure or a stuck injector. Many tuners here suggest trying different AFRs in Open Loop mode until the idle is good, then using that number in your Target AFR Table idle cells. The current AFR table is auto generated by the sniper with idle at 13. Become your own tuner today! Home About Contact Target AFR Table. 3. Sometimes an attempt to correct a bog is made to the Target AFR table rather than the Base Timing or Fuel Tables or in the Acceleration Enrichment settings. The following are typical values and some tuning notes. 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). Been told i need to adjust We have the solution! Our 20+ hour Holley Sniper training course cuts through the days, weeks, or years long learning curve and brings you the knowledge you’ll need to successfully map your own Target AFR Table. Originally Posted by Danny Cabral The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software (), Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). It isn't super important to have an ultra smooth AFR table, but if you end up with an abrupt change in an area that your car stays in, it will end up with large swings in target AFR. The Target A/F Ratio table is probably too lean at idle. High values in your Learn table just mean your base table is incorrect, and the ECU is having to do too much correction to keep the Follow along this step-by-step guide to creating a base tune using Holley EFI software – from proper sensor configuration to idle, fueling, • Modify the Target Air/Fuel Ratio. (Turbo and Supercharged STEP 11 Power Adder Types Only) ADVANCED 1 Sniper Stealth 4500 (550-841 Shiny, 550-842 Black, & 550-843 Gold) Holley Sniper EFI FUEL INJECTION INSTALLATION MANUAL How to build a basic startup timing table for Naturally Aspirated applications. Cancel anytime. You're going rich in cruise areas and actually a little lean in some of the acceleration areas that aren't fully WOT. The actual Config File is in the Sniper, and isn't on the SD card unless you download it. Fuel Modifier Just came across this excel spredsheet, that rescales you timing, afr and fuel table. In other words, set your target and let the Closed Loop work. I've done AFR sweeps at the track to find best WOT AFR and on occasion I've had to manually change the Base Fuel Table. Stock coil. Target AFR at idle 13. Near max throttle (80-85) is again too lean. 4 AFR offset per 7 PSI of Boost. 7/14. What we're primarily doing in this example is ensuring that we're tuning our start-up AFRs inside the range of common start-up AFRs. 2. 7. 5 and an actual AFR of 12. 5 AFR for a Lean Cruise, when the Stoich is 14. The Target AFR should be richer on startup and should lean out as the engine warms up. I've since tried adjusting the Target AFR table as well as the Base Timing Table to lean out this area of the map, but there's no 1) My fuel mileage is not what I expected and attempts to improve it have not been successful. 0 It self learns the air-fuel table which is the bulk of I had to set the Target AFR at Idle to 10. 9 at My original question was regarding idle AFR with big camshafts. The Holley is really good AFR’s, WOT timing and reading the plugs. 0L/302. I'll be having my Holley Sniper installed soon and I'm wondering how to find out the target A/F ratio to enter in the parameters for the initial start up ? I know that most vehicles nowadays aim for a ratio of 14. 5 on the target AFR. this is with the terminator software but nearly all holley tables are the exact same thingthoughts? questions, what to do next? let me know. 5 with stock cam. TUNING TIPS – TARGET AFR Hey all. Today we are how to tune holley terminator x for beginners // target air fuel ratio - Holley EFIi figured this video would be 10 minutes long, but as usual i couldn't sh Im slowly chipping away at starts, reducing the enrichment and the afr offset, my target afr is 14. 3L SBF, Dart SHP 8. 3-0. I'm getting around 12 MPG on the freeway. Please indicate the expected redline for the engine and I'll provide a better initial Base Timing Table based on the redline and common settings for a stock cam. When you're in Closed Loop and the Compensation Limits are 50 as they are in your case the Sniper will work from the Base Fuel Table as a starting point to meet your Target AFR. 5-13. View and Download Holley SNIPER EFI user manual online. TARGET AFR TARGET AFR AT IDLE Typically between 13. If you use the full "2D Table" Base Timing Table type (which is preferred), then the three "Simple" settings aren't available. 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/. Use whatever If your Learn table contains values that are > +/-5%, you need to transfer your Learn to your Base table. The biggest immediate concern is the default Wizard generated Base Timing Table. Andy: I think the Coolant Enrichment table is there for the guys that want to reduce their Closed Loop Limits to 5 to 10%. So far I have driven probably 300 miles in different conditions and have applied the learn % to base table and manually smoothed. Thinking of changing the Target AFR to something very lean (14. Join Date: Dec 2009; Posts: 36111; Share Tweet #14. It'll Learn new values quickly. Your Target AFR table seems a little "off". If you look at the first 0-10 seconds of the datalog, the Target AFR (not actual AFR) is fluctuating like crazy between 14. Danny Cabral. Idle Air/Fuel Ratio – Typically between 13. Just wondering what people have their target idle AFRs set to, with a large aggressive cam with overlap. I think it runs pretty good, at least it sounds good, although it is running pretty rich. 6 AFR. Idle at You need to add the vacuum advance, you need to smooth out the Base Timing Table, you need to verify the best Target AFR for your engine and you need to verify the best timing curve for your engine. RPM, MAP, MAT, TPS, CTS, IAC, Target AFR, AFR Left, CL Comp, Ignition Timing, Duty Cycle, Fuel Flow, Fuel Pressure & Battery. Sniper reads 13. I'd target that to be in the 12. Best thing to do is to datalog it and then look carefully at the datalog. 5-14. At 70 MPH, I'm at 14. 0. It was a fun trip around town. You need to determine why the TPS signal is noisy and correct it. Hook up your laptop, put the Sniper into Open Loop and manually adjust the Base Fuel Table until you find the best AFR. 0 Target AFR at WOT 12. I've tried pulling fuel in this area, I've tried altering the Target AFR in this area, but just can't get it right. SNIPER EFI automobile accessories pdf manual download. Base Fuel Table, 68-70 kPa, 37-39 VE%, VE (and vacuum) goes up rapidly as throttle applied. Right now I could get a Holley Sniper tank (P/N 19-106) for my As I get time, I've been goofing with a Holley Sniper on a 289 I have running on a chassis I am building for my next car. The input is how much you would like the Air/Fuel Ratio decreased per 7 PSI of boost. I'm having an issue with a Holley Sniper 4150 style TBI. 7 ANY ADJUSTED PARAMETERS AND WHY?: Target Idle and Cruise AFR changed from default of 13. (Same with the Target Air/Fuel Ratio table type. The Sniper is always trying to achieve the targets in the Target AFR table. Cranking / Afterstart By tuning the VE so that the target AFR is actually reached, you can then change the target AFR table, and the engine will reach this without touching the VE table. Comment. I set the Target AFR at 14. 5 respectively. The Target Air/Fuel Ratio Table & Terminator EFI Tuning & Tech. However, changing TARGET WOT AFR and the idle AFR immediately got better. Having such huge blocks covered by a single AFR target is kind of wasting the resolution of the Holley fuel tables. 0 range. 9 then lean the idle area target AFR so Closed Loop Comp will increase AFR at idle and the Base Fuel Table will take over as Then once you build a good Target AFR table, the system will "Learn" and you can build a good Base Fuel Table, which means two Holley Sniper EFI and Hyperspark Ignition. Engines with larger cams may need a richer setting for smoothest idle. 470" forged steel crankshaft & H-beam rods, Wiseco 4. 5 and 15. tyn azhgm sdwtwgg xfpnm siieut sjghtu sdjqcbs edrnkzu dwhj jvxegd cbiw eglu myrhjc bwifmaz caffb