I used 20sec sweeps to really load the engine so I wouldn't get false high readings. See my next post with the table converted to the actual commanded AFR the TRD tune will shoot for at >75% throttle. Predator PN U7000 Revision 7r50d (old as dirt I assume) 2000 Ford Mustang GT 4. for light loads, you can inject the fuel later in the cycle (closer to the spark event), this retains the fuel in a tighter kernel around the spark plug, promoting a stratified burn for fuel consumption and emissions requirements. i know i'm going down alot on cfm and it'll bring back some low end torque that i lost with the tunnel ram. It's a 20 mile drive to the tuner and I don't want to hurt the engine. But I keep reading that if I have a rich condition, say LTFT's are high, then I increase the VE value at that point to richen it up. whats up guys,,, for the ones that hade a custum tune are you happy with it, is it worth the money, and will the bike have good street manares thanks fir. Since I developed this website, I've received a lot of questions regarding the Stealth and 3000GT. I make my own hp needle/seat assemblies. How to use HPTuners. The center carb supplies the fuel at all times, except under full throttle. If you don’t see your machine listed, just ask! Dial-A-Jet is like adding fuel injection to your carburetor that you can richen or lean by turning a dial. baker 6-speed. This is my work truck. Learn how to properly and safely use, troubleshoot, and maintain your lawn mower, tractor, snow blower, and. Why is it that we still look for ways to eke out one more horsey? Baggers are meant to be comfortable on long distance mounts, for mile after mile of touring. Tuning Software for MS-II™ v2. Tuning involves setting all the parameters that your MicroSquirt® controller uses to be optimal for your non-pollution controlled engine, injection components, and driving style. Most bikes are tuned lean form the factory already, so you will be making it leaner if you don't adjust th tune/map accordingly. If you just add the 6lber and run the current tune you will be running too lean on pump gas. Currently what im running is a 2015 250L with the ejk , fm. While this is still not an ideal AFR for idle and cruising, it is an improvement. They are ordinary cars with the capability of running ordinary gasoline, E85 or E100 (ethanol) and a blend between the two. This isn't some wild arse untested theory on how engines work. now i upped the boost to 15 and she goes lean at wot high 13s afr. I've gotten great advice so far on this carb but it is still not quite right. In the native HP Tuners file format, or by exporting the data to a comma separated file. your speed is 10 to 15 mph off in the good direction now. These tuners run out of adjustment range or resolution for the rapid AFR changes and front/rear cylinder differences that high-performance cams typically cause. But I could not. 3 k/n and cat back anyone have any tunes i could try-im new to the gasser portion of the forum-have been playing with diesels for quite some time now basically just looking for and starter tune to point me in the right direction thanks to all. You'll need to do this to both pv's. This is going to be guide on how to use HPTuners. The money spent on O2 sims is WAYY better spent on a PCM tune. 0L applications. I think I have narrowed it down to these three. I tune my own car on the street. Great work buddy this is the easiest to follow explanation ive found on the net,and ive been searching. What's the two carb adjustment screws and what do they do? And what way I turn them to richen it up. While there are some differences between lawnmowers, the same basic technique works for many of them. Is that what this forum is for? For you amateur tuners out there who are just getting the hang of hp tuners or other tuning methods , if you don't understand something don't get discouraged. if there any possible the pilot jet was broken or the size is incorrect due imitation product? or maybe i need to setup the float more lean? thank you for the reply Matthew. Right on the money with the AFR richening. Mopar Performance Issues holley hp series and it will need alot a gas shot into it to richen it up to get the hotrod to move quickly. If you want to play with HP and expensive things the last thing you can do is worry about popping a stock motor. I really appreciate you guys pointing my clueless self in the right direction. This is how a/f ratios, torque, egt and smoke interact. Needle taper. If the idle is too rich initially, you will need to lean the idle by tightening the 4 screws equally about ¼ - ½ turn each. The process to jet a carburetor correctly for high-performance or racing applications uses a similar method as to how you would tune a street car, except the size of the carburetor is different. I think it's possible we will see an aggressive torque figure, possibly in the RS range of 350 lb/ft, but horsepower will be under 300 in that configuration. This engine-related performance part is not legal for use on pollution-controlled motor vehicles. The safest way to set the clip position is to richen up the clip position setting until the machine loses a little power (feels lazy/unresponsive) then lean it back one position. Last visit was: Mon Sep 02, 2019 11:15 am: It is currently Mon Sep 02, 2019 11:15 am. I then quickly richen the mixture back up by turning the H needle counter-clockwise. As you know the YS 4 cycle engines work with a pressurized fuel system. Below is a breakdown of the types of fuels that can be run. o2 sensor out of range could mean things upstream of it could be amiss, could be lean or rich. 4% over and pretty much had the tune up dialed in. I'm using swingmans guide to vve tuning and that seems to have put my pcm into speed density mode, as i thought it's way to lean and pegging my wide band max lean (16afr). Tables and programs to use: VCM Scanner Histogram: This is a graphical tool used to record the LTFT , STFT process as it happens live. Page 1 of 2 1 2 Next > Apr 19, 2010 #1. it's actually generating quite a lot of intake heat so you have to. Shop with the guys that ride!. A few weeks ago I bought my first nitro plane, an Alpha 40 rtf. Got the car dynod today. The V-Twin Motorcycle Performance Guide is your source of information to build, tune and maintain high performance Harley-Davidson street and racing motorcycles. cdvma turbo efficiency, tmarcel generic method and other tuners comments has given much better insight on how to tune. No it does not tell you the correct jet size, one has to start with the main primary jet & either richen up or go lean on the cruise ratio, then you go from there. Ideally you like to run the needle setting in either the 3rd or 4th clip position, if possible. Check Requested - LS2 HPTuners Files - posted in Tuning & Diagnostics: Hey, I dont have HP Tuners yet, but I still have two HPTuners files (see below) that Ted Jannetty uploaded to LS1Tech. Choose from an expansive collection of maps dyno tuned in-house by Vance & Hines. Performance chips, as the name implies, act as tuners that enhance various aspects of your vehicle's performance, primarily in relation to engine power and torque. Again, note rpm and final speed. Any info would be appreciated. 58 HP over a 500 RPM range. The Metering Rods and step-up springs are part of the Primary Main System while the accelerator pump and nozzles are part of the Transition System! The two systems can work together, but you have to tune them separately. You can fine tune if needed. i was told i will probably have to have it tuned for the bike to work properly. Therefore they cannot make much difference in power output. the reason MotoMummy said you'll have to pay eventually is because WILL eventually. I have ran p/c III for two years now and I love it It works very well there is so much you can do with this. Keep turning the pilot screw out 1/4 turn counterclockwise until the engine runs smoothly & doesn't stall. JEGS has a knowledgeable technical support staff, outstanding customer service, and 100%. Car Craft Magazine. Thank you for your interest in a custom DiabLew Tune for your GM vehicle! My custom tuning is for GM vehicles running 87-89 or 91-93 octane gas (no E85/LPG, medium/large cams, forced induction). The top end of the Jet Needle has grooves cut in it, usually five, and you can move the little clip up (which moves the Jet Needle down in relation to the Throttle Valve and Needle Jet) to lean the mixture or down (moving the Jet Needle up in relation to the Throttle Valve and Needle Jet) to richen the mixture. Click a category tab below to view them. I have read many threads on the various options and I'm soliciting advice on comparing tunes. If you have an automatic transmission you will need a vacuum sec. Most of them suck in the same air that the stock airbox does. well 1 thing at a time. I'm not new to nitro or planes, I've had several nitro cars and a Hobbyzone super cub and Parkzone T28, so I know the basics of flying and nitro engines. I think thats what the o2 sensors do. With the 2 bar you can tune any rpm at any map pressure and you can gradually richen up your mixtures as you come into boost pressures. FACT I don't know where this started, but you hear it often repeated at car shows and swap meets. Tomahawk intake, Technical info. 120 Rear Wheel HP @ 8500rpm 80. This article will give you a quick overview on how to set it up and what you can do with it. How to Start a Push Lawn Mower. Make a pull with the 20 HP jet and check the A/F ratio. it runs great at 10 psi boost, cruises good idles good afrs are perfect cruising and at wot. it is the same in normally aspirated piston airplane engines as you gain altitude you lean engine because there is less o2. ) If I remember right ~12. storz tank and seat and fiberglass back shell. DOWNLOAD a factory service manual straight to your computer in just seconds. Gen III - Speed Density VE Table and MAF Tuning Instructions with a Wideband O2 Sensor Create by 69lt1bird – Jeff Anderson 1 These instructions are written for the beginner and intermediate user of HP Tuners. It tunes it for 93 octane, tunes the transmission to downshift into lowest gear posible, etc. Session 1: Ok I got the bike down to my good friends at AF1 Racing Aprilia in New Braunfels Texas today. This does not impact your ability to tune for full/heavy throttle or maximize your HP. If a carb is set right when a saw is new, why does it have to be readjusted?. The following is a list of tips that every methanol fuel user should be aware of. o2 sensor out of range could mean things upstream of it could be amiss, could be lean or rich. The firmware update is a pretty painless process. a tuning guide i found based on hptuners. The only problem I saw yesterday on a dyno was at idle it was reading 18, then once the rpm's went up above the 800 idle the A/F ratio started going down to the 14. Pure race system. Doing so may result in poor engine performance, electrical-system damage, and/or engine damage. Drove a few diesels that the difference with a tuner was amazing. So if you look at it in terms of HP per litre, they're pretty similar. Personally never tried a tuner on a gas engine. I've recently got a tamiya nitro rc car and was wondering how I can reset it to factory tuning and then tune it to maximum performace. Also a 4 stroke with a big prop might have lower HP but will pull much better because of its torque and larger prop. Also, when you improve airflow the ECM can lean out the engine causing it to run hotter, or it can't richen it up enough to keep the temps down. I do love the predator though, it was great. The bike does run a tad lean, but won't the fuelpak richen it up. General consensus seemed to be that either (power commander or Power Pro) would suffice but that the plug in, forget-it and go feature of the Power Pro along with continuous variable tuning may be enough to seriously consider going with it. Letting the software find averages for horsepower between 4300 and 4600 yields 7. If you want explosions on decel then give it less decel timing. Know where your timing is set before making carb adjustments. Having a professional dyno at. Common Tuning Problems VE Table Entries Maxed Out: When calibrating the VE tables, occasionally the table values will max out. Air Fuel Ratio Units of measure. Mikuni Motorcycle Carburetor Theory 101. So, let’s get to the head to head comparison of the. Failure to mix the correct oil in the. The overlap in the cam at idle tends to throw the AFR readings off. Order part # H-25 Hex in the online catalog under (Holley 94 Parts) $5. 00 for a retune. If your car is a dedicated drag racer, tune for lowest E. HP Tuners 2. Checking to be sure this part is not loose or corroded is a good first step. LS1 Tuning Guide. We can easily remove 20 HP from our base map by changing both fueling and timing. Jets 86 primary, 88 secondary, Air bleeds: #53 idle, Drilled. Performance chips, as the name implies, act as tuners that enhance various aspects of your vehicle's performance, primarily in relation to engine power and torque. Nothing less. Joined Dec 9. Hp is king of them. FIRST and foremost, you need to know how the carb works and how the settings affect the running. I have a question for anyone who is certified or has knowledge of what is involved in being a good quality PC tuning center. Obtain a quantity of OMC or Merc "Engine Tuner"(I'm sure there's other sources), available in spray cans and gallons; submerge the disassembled carburetors in it for a couple hours to overnight depending on how bad the goo is, agitating occasionally. Re: LS1 Edit or HP Tuners Thanks Scott, ya this is a whole new field for me, and honestly I don't know much about the tuning aspect of it all. Airplanes require HP more than torque and land vehicles require more torque then HP So they are going to run and tune differently Simple. Did it surge at 3 turns out or pop on decel? Try setting the idle mixture at 900 to 1000 rpms and not the barely running approach. Tuners and Programmers. Take the bit out of the screwdriver, slip the screw driver over the jet and unscrew it (counter clockwise). If it still surges like you described, then raise the needle by shimming. To be clear, an engine doesn’t know the difference between AFR and Lambda. 137? When I had a dyno tune it was set to the standard 14. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. To richen the idle, loosen all 4 screws equally about ¼ - ½ turn each. Situation is that I need to get my car tuned ASAP as its running super-lean in boost at the moment since I upgraded my supercharger. I'm leaning towards HP-tuners as it is priced less than EFI-Live and seems to have more fuctions than JET-DST. 4 Turbo and if there is enough interest from the members we will do the same for the Fiat. Mopar Performance Issues holley hp series and it will need alot a gas shot into it to richen it up to get the hotrod to move quickly. A brief explanation on how to setup an AFR correction graph that you can use to quickly whip your VE tables into shape. Year, Make, Model. I just installed the Dyno-Tune "DRY" nitrous system on my 1000rr. after a full tune up i cut slots above and below the baffle and drilled 5 holes in the baffle to open the muffler way up. Mikuni Carburetor Tuning for Vintage 2-strokes. The money spent on O2 sims is WAYY better spent on a PCM tune. We use the Nat yellow slide but I can't seem to find any info on peak torque/hp for this particular slide. From what I’ve read on this site the only parameters that are active outside of WOT are the. Current models include low water pickups, however, earlier models did not. Requirements In order to properly tune your car there are a few items that you need to have available. My 73 Mercury Montego with the 351w started over heating on idle after I got it back from a shop since the carb was out of tune and was making it run like garbage. Rode today all i can say is everybody needs to get there bike dyno right and ecu editor!:please: Frank you are the man!:bowdown:. It is written specifically for MegaSquirt ® or MegaSquirt-II™ EFI users who are new to tuning engine with a programmable controller, and tries to make very few assumptions about what you already know. (Unifilter from BMW Atlanta and a Leo Vince slip on are the only mods. Guess what happens to those people who tune under full load. Updating the Firmware. just a 3rd gear stab. How-To Articles. HP Tuners, the home of VCM Suite and the MPVI since 2003. Performance wise you may gain a few more hp maybe 10, down low if you use the predator to richen up the AFR you will gain some torque as well. But I keep reading that if I have a rich condition, say LTFT's are high, then I increase the VE value at that point to richen it up. However, since none of the aftermarket and tuner specialists have had a chance to get a close look at the new model yet, it may be a while before you see a 700-hp 2016 Camaro doing a burnout down. It’s widely available, offers the greatest fuel economy and gives the longest range from a tank of gas. The bad is I wanted to even richen it up more by 1% at a time. Joined Dec 9. The weekly thread dedicated to asking whatever questions you may have on tuning or voicing your concerns/ideas for how to. This document will attempt to layout a step by step process to guide you in the tuning of your ls1 powered vehicle. 4 and 5 gas EGA assisted / Best Power Engine Tuning. However, if the power valve is removed and plugged, the main jet size must be increased 6-10 jet sizes to make up the required fuel amount lost by the removal of the power valve. ThunderMax offers hundreds of different basemaps which have been pre-dyno tuned and can be selected / loaded through the TMax software. Edelbrock is the most respected name in performance. 85 on that tune i was thinking of 32n 24f i busted 8 pistons when i first got the fogger running 28 28 with 6 psi lifted the ringlands on all 8 pistons, so i would. Below is a breakdown of the types of fuels that can be run. Tiss hard to explain in words. Turbocharging is always the cheapest hp/dollar ratio until you want to get 200% and more power from the original power number, then cost will go up ~10 times. The best way is to tune on a dyno. Why A Carburetor Has To Be Readjusted. right now i've got an fmu that wont richen me up past 13/1 afr's i want 11. In most cases, ignition timing must be retarded as the boost pressure rises above a critical point and finally there reaches a further point where the engine simply loses power. Motorcycle carburetors look very complex, but with a little theory, you can tune your bike for maximum performance. Doing so may result in poor engine performance, electrical-system damage, and/or engine damage. It WILL richen the closed loop area to 14. The BEST way to tune a 2-stroke engine is on an engine dyno. After you tune 2000rpm, tune 3000rpm. It tunes it for 93 octane, tunes the transmission to downshift into lowest gear posible, etc. We have over 55 years of experience delivering the best high performance auto parts from the best brands. Dyno Tune: Element Tuning built makes 586whp on a 2. You want to tune the engine by sound. This is used as part of Subaru's knock control strategy. 3 Racing Engine How To Tune the TRX 2. I realize that proceedure sounds a little artsy-crafty, but that's how mechanics fine tune the idle air/fuel ratio. I wouldn't try to tune the carbs on a dyno unless he has a method to check fuel flow versus hp. It is best to start tuning with conservative settings, retarded timing and rich mixtures. Year, Make, Model. You will find the information needed for tuning, modification, preparation and maintenance for your Harley-Davidson motorcycle engine. The assumption is made that the engine. Im looking for advice on an E47 tune. Jets alter the amount of fuel into the carb. the motor makes around 11 to 1 compression and runs great with a 950 cfm dbl pumper on the track. richen the tune up at low Kpa. how safe is Nitrous on the actual engine? I only plan on a 50-100hp shot. While this is still not an ideal AFR for idle and cruising, it is an improvement. 70 4-stroke! This engine is a single cylinder, four stroke constructed with an aluminum piston, an iron ring and a steel cylinder sleeve. but then can't adjust my trims from 34 degrees to 90 degrees. Why A Carburetor Has To Be Readjusted. Alot of people are knowledgeable about their particular field but few can translate that to us novices successfully,cheers mate. The Yamaha NYTRO FX stock horsepower peaks at 138 hp at 8600 rpm, with such a long power curve that the torque peak is 90 lb-ft below 7500 rpm. last night i was try using 17. I've attached a PDF file that basically explains what tables are available in the stock ecu for tuning boost control. If you are starting your adjustments fresh, begin at about 2 turns out. EGT's are a waste of time!. Custom tunes are created specifically for YOUR vehicle, with adjustments made based on real-world driving data. Fast, Free Shipping on Orders Over $79 on JD Jetting Fuel Injection Tuner & JD Jetting and gear at MotoSport. 120 Rear Wheel HP @ 8500rpm 80. So, yeah, that was on fresh oil and spark plugs, the bike has full graves, bmc. Performance Mods - Engine - 5. Probabley at stock comp ratios a degree to 2 advance would help. This is important, and they should be. That tune will net you around 117/138 at the rear wheels. Also, I am sure you are aware of the dropped valve seat issue with some of the early (mostly 05-06 and a few 07's) which, IMO, should be addressed before you do any modding to the vehicleif that is your plan. As you know the YS 4 cycle engines work with a pressurized fuel system. If the idle is too rich initially, you will need to lean the idle by tightening the 4 screws equally about ¼ - ½ turn each. 7 at wot you will be down on power, and may hurt the engine. But I already have a near new Rochester Quadrajet rebuilt by Holley. Most will plug directly into your stock wire. Some people think you're supposed to turn the idle mixture screws all the way in, and then back them out 2 1/2 turns. Cleaning and adjusting the carburetor is also a simple way to troubleshoot problems that it may be causing and get your lawn mower working properly again. I have a stage 1 upgrade installed, SE air cleaner,Rinehart slip ons and the new super tuner. the engine too lean (not enough fuel flow). com) are tuned using HP Tuners including my auto GXP. 7L engine is a very unimpressive design - only 210 hp when Honda, Toyota, Ford, etc. Forum Home. Holley Carburetor: Idle and Transition Circuit Calibration Guide July 27, 2015 by Muscle Car DiY At the risk of sounding repetitive, let me say once again, that if you bought an application-specific carb, you probably are only going to need to do minimal adjustments to mixture calibration. The is an introduction to tuning with a programmable electronic fuel injection ECU. I have bought hydrotec parts but have not put them on yet, I want to get a good base line of top speed befor I instal the HP parts. This is especially true with old cars that have point style ignition systems. Programmers tend to richen the mixture and move the torque/HP curve down in the RPM band and sustain them longer. Hi, Ive been adjusting my VE tables and have the LTFT pretty close to the 0 to -6 range. com DIY Tuning, Part 4 (Final) In the last three issues of Fiero Focus, we discussed what hardware and software you need in order to do your. I have the Holley Commander 950 ECU and Im having some difficulties tuning it for WOT. I would talk to your nearest reputable tuner and see what their recommendations are. Royal Purple HP stuff is pretty great for that. Edelbrock is the most respected name in performance. If you tune your Hayabusa "to an air fuel ratio" on a dealership level dyno, you are virtually guaranteed to miss potential power in the real world. Joined Dec 9. I really appreciate you guys pointing my clueless self in the right direction. 5 bar map sensor, and 725 cc balanced injector dynamics injectors. I own 3 TRX engines. Cat over temp is a table in the computer that when activated will richen the fuel mixture up to cool the cat converter down. They rev the engine hard and when they let off the throttle, we can notice some quick backfire from the exhaust. by High Performance Academy. Even then, the biggest problem is that you can't simulate actual drag race conditions. Street HP Vs. With innovative Parts Classifieds and tools, Parts Reviews, Clubs, Events, and more, MySubie is the Ultimate Subaru Enthusiast website. SuperTrapp is the original tunable muffler. Increasing the fuel pressure is the way to do it or you can also modify the air temp sender input to the ECU to richen the fuel curve. Speed parts Blue anodized aluminum cylinder head Easy to tune 21J3-I slide valve carb with 7mm yellow restrictor for more bottom end performance, and red 8mm restrictor for greater top end speed Natural finish crankcase. The accuracy of these items holds no bearing on their usefulness to tune, however, they must be fairly consistent to be used as a tool to achieve MBT. In AZ all we have is E10 unless you run race gas or E85. Only got 149 rwhp. 67822 and a pe enrichment ratio of 1. Performance EFI How to properly modify your EFI fuel system for performance applications By: Jim Roal. My fastest run on stock tires is 13. We gained 4 hp with a simple jet swap but didn't gain torque. I have ran p/c III for two years now and I love it It works very well there is so much you can do with this. frame german racing silver powder coat. 002 to gain the best performance from the last pass. Dyno tune results for my 2013 Super Bee If this is your first visit, be sure to check out the FAQ by clicking the link above. What's more, there's an Autolite 4100 on top of an Edelbrock Performer 390 dual-plane manifold. Technically, an engine is considered to be burning "RICH" when its burning more fuel than stoich. I would talk to your nearest reputable tuner and see what their recommendations are. How-To Articles. This sounds like a simple carb adjustment issue, however there is a special tool required to adjust the mixture, part no. 5:1 is best for power but ~17:1 is best for emissions. There's always mog talk of turbocharging the NA OM352, and space/plumbing issues, I ran across this: With electric motors becoming more powerful and. In most cases the lower the EGT value is the richer/cooler the engine is running and visa versa. One of the areas I'd be addressing is the boost control area. Obtain a quantity of OMC or Merc "Engine Tuner"(I'm sure there's other sources), available in spray cans and gallons; submerge the disassembled carburetors in it for a couple hours to overnight depending on how bad the goo is, agitating occasionally. The is an introduction to tuning with a programmable electronic fuel injection ECU. I am looking to buy a Duc but on my learner license am restricted to the Monster 659. 28 • NITRO 4-TEC 3. Many times I have then seen people try and richen the cars tuning map to get down to that A/F value, not realizing that they are already at a stoic burn if the gauge set up for gasoline reads 14. S1 runs about 15 psi or so. Working Subscribe Subscribed Unsubscribe 1. ive been all thru my sct tuner. Sounds like you're stuck in open loop at cruise which would make you run like you were on the throttle constantly. Standard Disclaimer: I take no responsibility for damage caused to your engine, if you try this project. 58 HP over a 500 RPM range. Gearing can also be a significant factor. So I have been using one adjustment a day on the pilot screw. com) are tuned using HP Tuners including my auto GXP. BE lets you convert a 9 point flow sheet into a 30 point flow curve. Makes a big difference also. JEGS has a knowledgeable technical support staff, outstanding customer service, and 100%. 2)Badge whores who want to save 17k will buy the 520 and change emblem to 528. Total air flow through an engine determines it’s maximum BHP. I just installed the Dyno-Tune "DRY" nitrous system on my 1000rr. The Yamaha NYTRO FX stock horsepower peaks at 138 hp at 8600 rpm, with such a long power curve that the torque peak is 90 lb-ft below 7500 rpm. Would be great if you could help!:). 5 fuel with the brown nos foggers wonder what the next step would be my best time was 5. 7:1 air fuel ratio (AFR). so who knows how to tune the maft version 2 using a wideband for monitoring?. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle. That's good for 1-2 True HP over pc2 on a Hayabusa installation when tested under load on real dyno. The improvement with the Z-AFM self-map showed a 2. Hp Tuners do it myself 2. as far as knowing which dyno tuner is a good or bad you don't and thats the sucky part thats why i am not currently using the PCIII, we only have two dyno tuners here on the island so do i take the chance and try the other guys out and risk losing $285 for a tuning actually the other guys are charging $325. 1:1 afr are perfect but the transition is way rich like 8:1 afr and starts to missfire. After that first cut, I tune the H screw. I was wondering about the settings on the ejk tuner since noticing my bike is running rich. Think you can't have a small-block that lays down 556 hp, 512 lb-ft of torque, 120-mph trap speeds, and 21 mpg on the highway without dropping three grand on a slick EFI setup?. Are you going to be running speed density? I've found that I'm doing a majority of my tuning through the ve table and I'm far less concerned about boost enrich. 5L + GT4088R Baseline hp/tq for a stock on same dyno: not available everytime we tried to richen the afr's. Performance Mods - Engine - 5. To tune the rod, remove the slide and hold the slide to where the rod is pointing towards you. With the 2 bar you can tune any rpm at any map pressure and you can gradually richen up your mixtures as you come into boost pressures. More info on the smooth/spikey VE table thing from [email protected] And allows you to tune your air/fuel ratio throughout the entire RPM range in 200 RPM increments. Seams to be running lean. To be clear, an engine doesn’t know the difference between AFR and Lambda. So thus I wonder if I can accomplish lower AFR by raising fuel pressure. 149" but it shows no performance gain.