How To Use This Guide
Welcome! Before we begin, I need to mention: it’s extremely important to understand how to follow this guide based the way I approached it.
The Succinct Version: The following will only tell if you if your vehicle is capable of being tuned.
- Ensure vehicle is prepped for tuning
- Set needles to flush/flush and idle gap to 1mm
- Conduct some high speed runs with the vehicle until it is no longer leaning itself out (typically 1-3 full tanks)
- Lean HSN until engine hits top not at ~3/4 through its power-band, and can hold the note through the rest of its powerband.
- Continue leaning HSN until it begins to cut out, then richen it back.
- Conduct another high pass, allowing vehicle to decelerate on its own.
- Listen to idle
- The idle should drop it’s RPM within 1-5 seconds.
- Lean LSN about 1/4 turn. Repeat Step 7 until:
- The idle takes ~10-15 seconds before dropping RPMs
- Reduce idle stop until vehicle has a nice steady idle.
- Begin Race Tune process
Cherry Pick Much?
The details above is merely for a base-tune. If you cannot get to this stage you cannot Race Tune….but it’s true.
You can see an example of it here: https://www.youtube.com/watch?v=YO6dQE0wYDA
I cannot stress enough how important it is to follow the sequential order of tasks in this guide. If you follow it to the tee, I can GUARANTEE results. Otherwise you are on your own.
-Me
I truly did not learn how to race tune until I disciplined myself in following a known set of sequential events (steps).
A famous example I’ve mentioned a few times:[Viewer Asking For My Help]: I really need your help. My engine is doing (bad things).[Me]: Happy to help. Let’s begin by…..also make sure the idle stop is about 1mm open[Viewer Asking For My Help]: Thanks, but the idle is fine. I just need it to…..This something I actually come across all the time (or a variant thereof). Each time, I can assure you it is the last time I respond to their request for help because people such as this, in my opinion, are not ready to be helped. This is one reason Flat-line-bashers will never get their vehicles tuned, IMO. They are set in their ways try to cherry pick things, but are too proud to put aside 100% of what they think they know and gets to crackin’.Make sense?
The Facts
‘ll emphasis this one time: Do not ‘skip around’ in this guide, else I cannot guarantee it will work for you. However, if you read each and every page in linear fashion, building upon what you learned from the previous page, it’s the author’s opinion, this tuning guide is fool-proof.I could possibly embed something in the middle of one page that states ‘ignore everything on page 7 (as an example), as it’s pure crap). and implement things on page 7 that will steady prevent you from tuning your engine ever. Then, you’ll wonder why it’s not working and the question becomes: did you read everything in order?
The Prerequisites
Above anything, need to realize youdon’t know what you don’t know. If you think you do, then, you don’t need this guide, now do you? Feel free to skim it, but if you jump around from section to section, please do not expect it to work. To that end, if you do, and it does…be sure to post your video of it right here (because it won’t).
Is this to indicate this process ALWAYS has to be followed in this order. Yes and no. For ‘re-tuning, yes. However, with time and practice, you will be able to quickly ascertain “oh, I’m here (process step), so I need to ….”. This is something I’m still trying to become proficient with, but I’m far from mastering it. For better or worse, it is what it is.
