adjusting the port timing for Taupo. This is the fuel screw, aligned with the access hole, adjust it clockwise to increase fuel. Left screw = Low Idle turn it in untill it is lightly seated, then back it out 1 1/8 turns. 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. at 10 psi its good 11. Now heres where the race gas really makes a stock tune perform as the added oxygen in the gas makes more hp and that could be anywhere from 5 to 20+ depending on the weather. Carb Tunning In this information, when Holley is used, it refers Holley style carbs, such as Quickfuel, Pro-Systems, C&S, Demon, etc. So if you have had to richen up the main circuit for the. Well, Ken, at the moment I'm not even running an AFC. 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. It will translate that Lambda to an AFR, and display that number for us to to read. If it is OK then you are good to go. this is a stock tune you can mess with, you dont know how much timing they introduced into the custom tune. Edelbrock is the most respected name in performance. Years ago I had fuel map made. I'll post my results. How to tell what size carb you need: You take the engine cubic inch and multiply by the maximum RPM and divide by 3456. But there are a lot of myths. 8896 1050 Holley Dominator with annular boosters. Turning it to the right will richen it. Before you ask why, see the attached dyno chart. Our air induction systems produce more Power and Torque, offering you more real world performance than any of the other intake system out there, We've been tested to be the best, compared to the rest and each time VR comes out on top. See my next post with the table converted to the actual commanded AFR the TRD tune will shoot for at >75% throttle. This is used as part of Subaru's knock control strategy. 137? When I had a dyno tune it was set to the standard 14. In a demonstration of how far base horsepower and easy bolt-ons have come, it took only the aforementioned mass air and exhaust, as well as a pulley and tune, to move Jeff's GT 500 to the king of. with the added power you'll need the upgrade. 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. I always have to use the choke when fully warmed up since new and starts hard when cold also. 149" but it shows no performance gain. 8 pulley and chip combo. Disassembly, Cleaning and Repair of Kohler Command V-twin Nikki Carburetor. Generally speaking a majoriy of Stihls are at about 9. sportster S gas rear shocks. I've tried to organize the steps that follow in a rational manner. ive been all thru my sct tuner. –Exact replacement for originals except the hex head. A narrow band O2 sensor (NBO2) essentially only understands a 14. Claims by many about being the best way to tune an engine must be qualified. He is using HP tuners richen it up to the low to mid 11s and shoot for about 20-22* advance. 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. Adjust each idle mixture screw (Figures 3 & 4) 1/8 turn at a time, alternating between each screw. See the "Tune-Up Specifications" chart at the beginning of this information. Again I'm peeved at myself as I was off the mark adding too much timing and boost whilst not concentrating on fuel. you need to invest in a high pressure oil relief valve also. Are you trying to richen the mixture using the mixture screws? Are the limiter caps still on the mixture screws? Just tossing ideas out, okay. As you know the YS 4 cycle engines work with a pressurized fuel system. I need help tuning my quadrajet!?!?!?!? Does anyone REALLY know how to tune a quadrajet? I need help!? I just had a 383 stroker built for my 68 chevelle malibu. Tune dosent work at higher altitude? Ok so I took a road trip from Texas to Colorado and i noticed that the car has really bad throttle response from around 2300 to 3500 rpm and 5th gear is pretty much useless on the highway , I noticed it when I got in the higher altitude areas. 75 (almost rich enough) volts at 2000 RPM and starts dropping to. Maps are calibrated for your specific combination of motorcycle and performance parts. Now, let’s adjust the idle mixture so the engine runs at a half-ratio leaner – or 14. you need to invest in a high pressure oil relief valve also. HP Tuners has COT if I remember right. ever thread wants me to tune with a logger and i cant see how thats more accurate then a wideband. I keep seeing mention of how these bikes are setup lean when delivered and that is a little scary, especially in the Texas summers. One point no one is going to tell you is that Harley has hidden tables that will richen up your injectors if you hold the bike under load, like on a dyno or wide open throttle for any amount of time beyond "x". okay i'm getting ready to swap the edelbrock TR1-X tunnel ram and dual holley 660 4bbls for a edelbrock scorpion and holley 850DP. No, Jets cannot by their self increase horsepower 5% to 25% on stock engines. 383 cid chevy. The reason being that both like a different amount of fuel to air ratios for the engine to run properly, make good power, and be. 27 HP for run number 2 and 7. 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. During the 1970s, we were the techs responsible for the jetting of countless. And while some of those other cars had hundreds more horsepower than he did, I suspect Eddie often had 200-300 more hp than they did at lower rpms because he has a tune with less peaky boost and more consistent power across the range. 8* of timing for every lb of boost. If you are looking at a MPG gain, check out the SuperChips tool. This would decrease your hp so the ecm is adding boost to compensate for the hp loss. I'm sure you know that the Liberty is known to be thirsty for its size. No author mentioned. Ok so I read the sticky on how VE tables work but I am still left with one nagging question. What you are doing is either threading it in and shortening the length of it (. It lays out information in a very easy to read display with all of the parameters that we need to look into. Even then, the biggest problem is that you can't simulate actual drag race conditions. Valves are good but we are tearing it down tonight to Verify. Can't yamaha dealers richen up the the fuel mixture by pluging into the computer?. Lean main jet size by. I took the fuel tables from a guy who loaded his G8 tune onto the tune repository at HP tuners. What other than Engine>Fuel>General> FA Stoich determines the part throttle AFR? I am running 11:1 comp on a 6. I bet that's your problem if you're trying to tune it with the WB. JD Jetting Power Surge 6X FI Tuner. Almost everybody has a Holley carb but not everyone know how to tune them we show you how and help you learn the science and basics of carburetors. but you still have the option for 4. Also altitude has a lot to do with it. It’s the easiest and fastest way to “tune-in” any modifications you have performed on your machine. A brief explanation on how to setup an AFR correction graph that you can use to quickly whip your VE tables into shape. Keep in mind that you can easily go too far and end up sticking a piston, etc. Start with. need a tune with LT's-- At PT the LTFT's will correct themselves up to. how to get 340 into 12,s. Many tuners will automatically remove the power valves and use a "plug" thinking this is the "hot" ticket. Fix your problems now. 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. More Stihl MS 460 Specifications information can be found in Carburetor Manuals HERE and a Stihl MS460 chainsaw workshop manual HERE. (Cai exhaust 91 octane tune with mds disabled) I ended up getting 10. Takes a few tries to get it to start again and will die when trying to engage or change to reverse. If your car is at 4,500 rpm at WOT there is definitely a problem there. This worked well in Las Cruces, New Mexico, which is at 4,000 feet. Now heres where the race gas really makes a stock tune perform as the added oxygen in the gas makes more hp and that could be anywhere from 5 to 20+ depending on the weather. just wait for the gears to be installed and see how it goes from there. They may be helpful references when discussing how to tune a motor, etc, which jet to turn, etc. You also need to know what is a correct tune, and what isn't. Right on the money with the AFR richening. While EFI tuners routinely use this new technology with great success, surprisingly few carb owners have warmed up to the idea yet. Use a power valve cap and place a small spring against the side of the pv it covers so that it gradually opens under boost (this takes a while to get right). 58 HP over a 500 RPM range. They are told to just take it to a tuner because there is not chance for them to learn. Getting a PCM tune to disable the post cat O2 sensors is the best way to do this. As these carbs have jets in the front metering blocks and specific size fuel holes in the rear metering "plates", do the jets and metering plates need to be replaced in tandom to effect any increase in fuel?. How to Richen a Narrow Band O2 Sensor. Over the past 50 years, the venerable Holley carburetor hasn't changed much. Adjust each idle mixture screw (Figures 3 & 4) 1/8 turn at a time, alternating between each screw. I think I have narrowed it down to these three. Upgrading Harley-Davidson EFI engines. wondering how difficult it is to tune my ski once i put a westcoast pipe on itdo the jets have to be changed?? i already put a 38mm carb instead of the 28. I own 3 TRX engines. I've been trying to tune the car without it. Ok, so I went to the Dynojet. Just to say I did it. This motor in a 3200 pound nova runs an 1/8th mile in 6. I to was weighing towards the HPT, seems a little easier to use from what I've seen. The owner of the vehicle says it's not really an issue just a nuisance and the vehicles runs fine otherwise. But the fuel mileage fell off and life span expectancy was cut in half when you actually used the extra power much. For years I have wanted to run the Maxton Mile in N. Application: GM V8 based vehicles. some engine details. 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. 006" per ¼ turn), or threading it out and adding length to it. As you drill them out you will be required to turn the idle mixture screws out to regain good idle control. Again I'm peeved at myself as I was off the mark adding too much timing and boost whilst not concentrating on fuel. 7:1 air fuel ratio (AFR). Requirements In order to properly tune your car there are a few items that you need to have available. Information about Classic Pontiac engines. 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. Any info would be appreciated. 10 which will throw the speedo off even farther. See the "Tune-Up Specifications" chart at the beginning of this information. 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. 33-48 of 232 results for "hp pavilion laptop problems". Laptop computer. do you think i'll need to jet the 850 dp down so it'll work on my motor or ??. Narrow Band vs Wide Band o2 Sensors. I just installed my C&L race cai and then put in the 93 octane box tune from SCT SF. If you are going to tune it this way the formula needs to be flipped, i. 0 for Lambda 1. This is my work truck. I have it pretty close and I feel like I'm on the verge of it being good enough, my issue is the carb goes lean past half throttle then enriches back up as the revs climb, I have identified this as a combination of a few things. How to Richen a Narrow Band O2 Sensor. being able to input the 10 point MAF and it converts it to 30 point for you. Check the fueling on your local Low Inertia 4 Gas EC997 dyno, adjust the stock ECU for maximum power, set it and take your Teka Fuel Injection Programmer away with you. I had to richen up my mixture to get a 13. Replace those slotted scews that dont give you room to get a screw driver between multiple carb setups. TFI unit by dobecks that will richen your fuel just like the SE tuner does. For example, in a turbo car you might decide to keep mixtures stoichiometric as high as 10 or 20kPa (around 1. i always start focusing on main jets first then needles then floats then pilots then A/F. Set the two air/fuel mixture screws to a baseline point so that the mixture can be adjusted while the engine is idling. 5 AFR if your only at 25% Throttle and building a few psi. HIGH PERFORMANCE TUNING INSTRUCTIONS FOR HOLLEY PERFORMANCE CARBURETORS 199R7849-2 NOTE: These instructions must be read and fully understood before beginning installation. Hp power range with only exhaust and CAI? Discussion in 'Terminator Talk' started by Bdubbs, Apr 19, 2010. 5 AFR when running WOT so your tuner is probably right, you are likely running a stock tune. I put an edelbrock torquer manifold on it but dont have the money yet for a new carburator. However if you raise the comp ratio too much advance will work against you. I've also been reading about the MegaSquirt and how it works. Lectron Technical Information. The improvement at max power was 1. frame german racing silver powder coat. say 10 degrees C to 34 degrees C. While there's a substancial difference in these carbs, they share a common tune-up procedure. Beginning in 1968, all models have a decal conspicuously placed in the engine compartment giving tune-up specifications. A good deal of mystique surrounds Webers, specifically Weber jetting and tuning. Unfortunatly I will be putting the car away for winter soon, so I won't be able to do much testing. With teh PCM tune, you can also pick up another 10-25 hp as well. Specifically today we are gonna be using the Haltech Elite 2500 ECU that's fitted to our 2008 Subaru STi. The instructions that follow are based on my personal experiences, several hours, days, months spent learning the ins and outs of tuning my own car with my Predator, and also from information I have collected from other online users as well as from the folks here at Diablosport. BTW with headers the truck picked up another 20HP over the stockers, and the PRT exhaust picked up 3-18 HP from 4500 on up. The power commander adjusts for every 250rpm instead of steps of 500rpm so it can be adjust a bit more accurate than the FI Tuner. In the native HP Tuners file format, or by exporting the data to a comma separated file. After 40 years of doing this I can honestly say this is true. See the "Tune-Up Specifications" chart at the beginning of this information. 002 to gain the best performance from the last pass. I really appreciate you guys pointing my clueless self in the right direction. What ever you do, DO NOT use a High Pressure fuel pump, electric or mechanical. 10s as stock gear ratio then you wont see it in the tune. yes you need something to allow you to tune the bike. Gotta say, the difference is like night and day. I tune my own car on the street. 006" per ¼ turn), or threading it out and adding length to it. LEts say you go farther and do more mods, yet again you need to modify things. Proper idle mixture adjustments can prevent bogging, hesitation, rough idle, backfire, stalling and hard. It's a 2002 GMC Sierra 2500HD with a 6. Everyone complains of how they're set to lean and the engine needs to be choked to start and to run. To give an example, if you are running lean, there are three ways to richen the mixture. 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. After I added intake and exhaust on my Chieftain he charged me $100. if they set 4. All you would do is richen it when you trigger your PE (power enrichment). Most anything I have ever used you set the mixture and leave it alone. Typically you will need to richen the jetting. Dave, as Turbo Nova said, the "Easy" solution is the Sportsman XFI, and someone who can tune it for you. Street HP Vs. To give an example, if you are running lean, there are three ways to richen the mixture. 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're looking for a symphony to play on deceleration, there are a few things you can do to enhance the sound. Keep turning the pilot screw out 1/4 turn counterclockwise until the engine runs smoothly & doesn't stall. IF YOU CHANGE THE EXHAUST, YOU SHOULD CHECK YOUR JETTING AND ADJUST AS NECESSARY. Discussion in '2nd Gen. Take the bit out of the screwdriver, slip the screw driver over the jet and unscrew it (counter clockwise). I'm running stock on my Ultra and added a V&H Fuel Pak to my Fatboy just to richen it up. I have read many threads on the various options and I'm soliciting advice on comparing tunes. Tips on adjusting the idle mixture on Holley carburetors, using a simple vacuum gauge. This document will attempt to layout a step by step process to guide you in the tuning of your ls1 powered vehicle. These pipes are the one piece- no end caps- slash down. So it was not paired to the bike like the SERT was, so you shouldn't have any problems moving it to your bike. 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 think thats what the o2 sensors do. This document will attempt to layout a step by step process to guide you in the tuning of your ls1 powered vehicle. If you are going to tune it this way the formula needs to be flipped, i. Going to try that tomorrow, laptop died today before I had a chance to have a crack. With technology, now Dyno testing cane be made more simple. pvcrs and changed hsab to. One of the areas I'd be addressing is the boost control area. I was just curious if you'd have to richen it up a little over what would be typical for a drag tune? Good to know it has been done. 10 which will throw the speedo off even farther. 0 Mustang & Super Fords Magazine. SuperTrapp’s exhaust outlet is formed by a precise gap between a series of individual discs. Once we are through with our dyno runs and calibration, it is good to take the car out on the street for some simple testing to verify driveability, the process and tune in the real world. Most engines tend to like 0. this is what they do: Speed limiter removed Raised rev limiter Raised shift points 3-1 and 4-2 skip shifts Programmed for race pellet timing Transmission line pressure increased 185F fan turn on 90 second fan on at key-off (this feature. But I don't like people saying their tunes worked without proper supporting materials. If your KAMRFs are off at idle then you should be looking for the reason why and not masking it by tweaking a sensor input. I own 3 TRX engines. Installing the POWER WIRE can help cure this lean condition. Open loop is used when the O2 sensors are not warmed up, failed, or when an enrichment mode (such as power enrichment) is active. Last visit was: Mon Sep 02, 2019 11:15 am: It is currently Mon Sep 02, 2019 11:15 am. , Steel crank and girdle, 5. Two stroke motors are VERY touchy in the tuning process, if they run too rich, they bog down and quit. Keep in mind that the 200 RPM increments of the small charts hide some of the details. BE lets you convert a 9 point flow sheet into a 30 point flow curve. Im looking for advice on an E47 tune. And that is part of what blows my mind. In most cases, on small block Chevy engines, our leanest cylinders are usually 3 and 5. Thats good to know. The different parameters, how to make changes, what effects happen when making changes, and how to make custom PIDs and log sensors through the scanner. It's simple design and near infinite adjust-ability have long made it a favorite among enthusiasts. The porting is nothing extreme and the motor behaves like a 150,175 at the bottom and revs higher to make the extra hp. About 560hp worth of air filters or more than 5x the oem system. now i messsed w thecarb alot to get it decent at 10 psi, i totally removed the adj. This site contains. I went with V&H Big Shot Staggereds and the SERT. the stock option will be checked. I dont know what graph you are looking at but the one I posted definatly crosses at 5252. how to tune Post by Chucko » Mon Aug 23, 2010 3:05 pm You should have received a flow sheet for your particular MAF from Pro-M. How to adjust the mixture screws on your carb. They rev the engine hard and when they let off the throttle, we can notice some quick backfire from the exhaust. The use of a portable 5-gas exhaust gas analyzer and/or a wideband sensor based A/F meter can allow a tuner to observe the A/F mixture the engine is getting from its fuel system at any engine operating condition. MySubie is for Subaru Enthusiasts that are into modifying Subarus and sharing valuable information and reviews on Subaru oriented projects and aftermarket parts. i dont really want to go ripping into the internals but i'd like to get it to about 400 hpis a cam and new top end my only realistic option?. Before you ask why, see the attached dyno chart. I put in a borrowed tune and HOLY SHIT!!! I cant eblieve the difference!!! Also found out I was using Version 1. LS Fun for Cheap! Budget Rebuild LQ4 Makes 464 hp! Junkyard Attack Dog: 464 hp from a salvaged and rebuilt LQ4 truck engine. But the N/A and TRD tune's command a 14. Motorcycle carburetors look very complex, but with a little theory, you can tune your bike for maximum performance. 0 Vortec V8 motor that comes stock with about 300 horsepower and 360 ft. Since I developed this website, I've received a lot of questions regarding the Stealth and 3000GT. How can one expect a accurate tune if all your calibrations are off. 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. In most cases the lower the EGT value is the richer/cooler the engine is running and visa versa. HIGH PERFORMANCE TUNING INSTRUCTIONS FOR HOLLEY PERFORMANCE CARBURETORS 199R7849-2 NOTE: These instructions must be read and fully understood before beginning installation. Street HP Vs. The chart is the before and. Jon was able to increase 4 hp by downsizing the jet to 67 from the original 70. I've also been reading about the MegaSquirt and how it works. 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. 34 hp per cubic inch) a long time ago, but they were useless for the street and, as he states, "We couldn't wait to get that stuff out of the motor". Tiss hard to explain in words. 12 engine :cool: Edited to add Pro. The restricted 659 Monster has about 48HP available, but the dealership can remove the throttle restrictor and re-program the ECU. ITS HERE! Vararam HAS GIVEN CAMARO OWNERS WHAT THEY HAVE BEEN asking for! The new 2010 Camaro system from VR represents a major leap forward in terms of real world performance delivered with the quality that Camaro owners and tuners alike have come to expect. Any thoughts? Dyno Tune. Do the same for FTDI B. I know my car was given a conservative tune, as the previous owner told me he had the tuner do that. think about the things we modified on the truck. The kit just puts one nitrous fogger nozzle in the airbox that sprays towards the air temp sensor and is suppose to give you 40 hp. Continue procedure until top speed starts to fall. This system is what delivers the fuel from the tank to the engine. The Fuel Moto Micro EFI Tuner cost roughly 40% of the cost of the Power vision. The kit consists of:. I have no reason to switch to an aftermarker carb just want my original to keep up with the motor. For all tests we held the boost the same, but used spark advance, as well as adjusted the air/fuel ratio to find the best safe power each fuel would make. 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. The Holley technical service department maintains a list of frequently asked questions by category. Combine the two adjustsements to find a nice idle speed and reliable tickover. 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. Generally the electric choke by the keyswitch works fine works fine when she has been sitting only 1 few days or so. What's more, there's an Autolite 4100 on top of an Edelbrock Performer 390 dual-plane manifold. The overlap in the cam at idle tends to throw the AFR readings off. Welcome along to another one of our webinars. The correct way to tune your AF ratio is by adjusting the fuel tables. Jets alter the amount of fuel into the carb. Well yesterday I was driving around and the car drives and cruises fine. Start fixing your outboard motor now!. KingoftheRoad doing a complete stage 1 you can usually expect to see a 8-10 hp gain over stock, more then with just mufflers, for sure. What ever you do, DO NOT use a High Pressure fuel pump, electric or mechanical. Before you ask why, see the attached dyno chart. My 1988 Yamaha 70 HP 2S is a bit fiesty when she feels neglected more than a week. You have your new air filter and exhaust system ready to put on the bike, but recognize the need to change the air/fuel mixture to take advantage of the increase in air flow into the engine and exhaust flow out. So, let’s get to the head to head comparison of the. I have not seen any specifics on MPG gains. Is this real life? There's an easy to read/understand/tune open loop ECT vs MAP AFR table ("EQ ratio") but there doesn't seem to be anything for closed loop :mad: So (pretty much) I can adjust my fuel trims for the first minute of starting my car from cold. You can tell a little horsepower gain, but nothing like I expected. Most will plug directly into your stock wire. I think I have narrowed it down to these three. Re: leaning out a Holley HP at idle April 16th, 2015, 09:32 AM One of the things I dislike about holley carbs - to adjust the secondary throttle plates idle position - you have to remove it and flip it over, hopefully you only have to adjust it once. has any one used a harley davidson screaming eagle race fueler ? I have a 2008 nightster, and have added screaming eagle exhaust and air intake. So, yes, about 12 hp is right on for a Whipple. About 560hp worth of air filters or more than 5x the oem system. IDLE TUNING The following is a collection of idle tuning notes, tips ‘n tricks and How-2’s for idle tuning a big cam (or any cam for that matter) that I used when dialing in my 248/254,. When I mapped my car on the dyno I first used static rpm to fine tune ign and fuel on lower rpm's where the turbo wasn't generating much boost. For this reason it is essential to use a torque wrench when making adjustments from the Stihl MS 460 Specifications. Combine the two adjustsements to find a nice idle speed and reliable tickover. just wait for the gears to be installed and see how it goes from there. It lays out information in a very easy to read display with all of the parameters that we need to look into. 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. 5 AFR when running WOT so your tuner is probably right, you are likely running a stock tune. i dont really want to go ripping into the internals but i'd like to get it to about 400 hpis a cam and new top end my only realistic option?. Power Pro After posting the thread a few days ago I asked a couple of service types at a few of the dealerships here in Utah. Make a pull with the 20 HP jet and check the A/F ratio. Any further in and it will stall or hesitate at the snap of the throttle. 622, 112 LSA using HP Tuners. Want to get the best performance from your engine? Read these articles: How To Start and Tune the TRX 2. Therefore they cannot make much difference in power output. However there is a lot more to us than just that. I to was weighing towards the HPT, seems a little easier to use from what I've seen. 3 Racing Engine How To Tune the TRX 2. lbs of torque. 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. If you are not familiar with tuning EFI systems, you might want to review the material in the Principles of Tuning page before reading this web page. i just aquired a 04 gmc yukon with a 5. 383 cid chevy. Ok, so I went to the Dynojet. yes you need something to allow you to tune the bike. In turbocharged engines there is a fine balancing act when it comes to making a lot of power on low octane fuel. They are told to just take it to a tuner because there is not chance for them to learn. At CRUISE (constant speed) you should be seeing 14. 600 Vacuum Secondary Leaning Out I have a wideband hooked up to help tune this beast. Our Zero Restriction inlet system with large capacity K&N Filters for the R1100RT and R1150RT. I have a 120 hp force outboard that, when in idle, dies. Also you'll need to tap it for pvcr's so you can tune it with them. If you just add the 6lber and run the current tune you will be running too lean on pump gas. The V-Twin Motorcycle Performance Guide is your source of information to build, tune and maintain high performance Harley-Davidson street and racing motorcycles. We can lean out the fuel or richen it up to effect overall HP. This is a follow up to my Wideband via EGR sensor video and includes the.