VitViper's blog

Free Tune Offer

Submitted by VitViper on Tue, 12/27/2011 - 1:59pm

As it is painfully obvious, our Calibrations section is lacking base calibrations for anything but 8th gen Si's. This wasn't a big deal when we didn't have FlashPro support for TSX & CRZ models, but that is changing. So as a one time offer, I am looking for TSX and CRZ vehicles equipped with various modifications to tune. The tunes will be free, and they will be added to the Calibrations section.

So come get a free tune, and it will be a join venture to support the community of each model! Bear in mind that I am not looking to tune a large amount of vehicles with the same modifications... to help build out the Calibrations section I want vehicles with varying modification levels. But as it stands right now, I want one of everything!

Contact me either via PM on this site, or email: vit@e-tunez.com

Due to available base cals, this offer is not valid for the following (or similar) setups. Inquiries for all others are welcome!

Acura TSX

  • Stock
  • Intake only
  • Intake/HFC

Honda ECM/PCM Idle Learn Procedure

Submitted by VitViper on Mon, 02/28/2011 - 7:53pm

Very frequently I've been asked to look at datalogs of an erractic idle. Usually the blame lies with an aftermarket throttle body or even an OEM Honda throttle body. The tell tale signs are an idle that likes to "jump" up and down or "go crazy". After the break is the procedure to calibrate the idle. I've found that I get the best results if I start the procedure with the car cold (below 100 F ECT).

In Soviet Russia Factory Wideband Tunes You

Submitted by VitViper on Mon, 02/21/2011 - 4:12am

Oh aren't I just clever with that title...

But on to the point I wanted to make: we already know that the factory primary wideband (WB) oxgyen sensor (O2 sensor) is not very accurate in engine operationg conditions that require a rich air/fuel (A/F) mixture. Generally this requirement is seen on vehicles equipped with forced induction (superchargered or turbo vehicles). Fortunately, Hondata found a pattern to this nuance and has graciously provided us with the "Air/Fuel Correction" (AF.Corr) sensor value in FlashPro Manager that does a great job of correcting this discrepancy.

Unfortunately (yes, there is some bad news), the factory O2 behavior isn't limited to just this correctable discrepancy. I wanted to share some of behavior I've seen the factory O2 sensors exhibit as they fail. In the vast majority of these cases you will not even get an MIL (check engine light), and in some cases the sensor even behaves as if it is working and there is nothing to worry about. Read on for more details after the break...

Choosing a Calibration

Submitted by VitViper on Sun, 02/20/2011 - 9:08pm

One of the most commonly questions that I get is "What calibration should I start out with?". 

The answer to this question is actually fairly simple. Go to the Calibrations page on this site and use the filter based on your mods. Quite frequently you are not able to find a base calibration that exactly matches your mod list. No worries, the priority of mods for picking a calibration is this:

  • Forced Induction (S/C, Turbo), or Naturally Aspirated (N/A), then
  • Header, then
  • Exhaust, then
  • Intake

So if you don't find a calibration that matches your mods completely, you can go by that rule of thumb. If you have more exotic mods such as cams, superchargers, turbos and cannot find a base calibration, look into getting a professional eTune or a dyno tune from a respected K series tuner in your area. A professional tune isn't just limited to more exotic modifications. Once you've picked out your base calibration, you will want to fine tune it for your car and if you are unsure of what changes you need to make yourself, a professional tune is a great choice for your next mod.

I try to upload base calibrations for the most popular mod combinations that I see in the 8th community, but I can't cover everything as it seems to be an almost infinite array of combinations.

 

eDyno Updated With Several New Features

Submitted by VitViper on Thu, 01/06/2011 - 3:19am

I am quite happy to say I've done a major update to the eDyno software. I want to briefly note the the major changes

  • Much more granular graph processing, with end-user adjustability in the "Datalog" pane of each uploaded datalog. You can see it labeled as "Granularity" when expanding a minimized datalog window. This will allow you to get much higher resolution in your graphs. Even the default setting of '50' (the the lower the value the higher the resolution) produces better graphs than the previous version of eDyno.
  • Experimental R18 support. This has only been tested lightly, and I won't stand by it's accuracy 100%, but it should be nice for R18 owners that want to do calibration comparisons as the relative differences are still valid. I am also more than happy to work with anyone interested to improve support. This goes for makes/models beyond the R18 as well.
  • FlashPro datalogs only: I now parse ALL sources of Air/Fuel reads out. This includes A/F, A/F.Corr and the Wideband input. You can also overlay two A/F plots (for example, AF.Corr and Wideband) to compare. There is also a feature to let you offset the second A/F reading. This feature is useful for overlaying the Wideband input accurate as we have noticed this input lags a bit behind the factory wideband read out. Again, these new features are also located in the Datalog window for each uploaded datalog.
  • Trim peak RPM is now much more accurate.

The following link is a graph that shows the difference in resolution between using a granularity of '10' vs a value of '100' (default for previous version). This is a plot comparing a customer's 30* and 40* cam angle pulls on an S/C Si: http://edyno.flashprotuning.com/graph/view/4d257a4d_3_4d257a4d75b907.92116353

The following link is a graph showing the A/F overlay feature. First A/F is the AF.Corr value and A/F 2 is an AEM wideband with a -50rpm offset applied to align the input accurately: http://edyno.flashprotuning.com/graph/view/4d258174_3_4d258174b9f0b8.65496341

 

FlashPro Manager 1.1.6.3 Beta Released

Submitted by VitViper on Mon, 09/20/2010 - 12:28pm

This beta has a critical change to the IAT and ECT ignition compensation tables, and anyone running 1.1.6.2 should upgrade to this beta as soon as possible. Get it here.

Full list of changes:

Hondata Takes 9 Records

Submitted by VitViper on Fri, 09/10/2010 - 2:57pm

Congratulations go out to the team at Hondata for taking 9 records at this year's Bonneville Speedweek! Full press release from Hondata is available here.

eDyno Updated with AP1 and EP3 support

Submitted by VitViper on Fri, 07/02/2010 - 1:24pm

I've updated the eDyno today to add vehicle information for the AP1 S2000 and the EP3 Civic Si. Since both of these vehicles are tuned via KPro, support was already there in the background, but now you can select the vehicle and it will pre-fill the vehicle weight and gearing information for you.

Hondata R18 Boost & AFM Tuning

Submitted by VitViper on Wed, 05/12/2010 - 2:29pm

Hondata has always been a great resource for tuning related questions and a major pioneer in the Honda tuning scene. As such, major credit goes to Hondata for posting a great article on AFM and boost tuning pertaining to the R18 equipped Civics. You can view this article right on their site.

FlashPro Forced Induction with the Air Flow Meter

The article covers:

- How to tune for larger AFM housings.
- How to calibrate for larger injectors.

FlashPro Manager v1.1.5.3 Beta Released

Submitted by VitViper on Wed, 05/12/2010 - 1:38pm

Hondata has posted a new beta today.

V1.1.5.3 changes:
• [Civic Si - Race] Removed launch limiter disengage speed.
• [Civic Si - Race] Added gear ratios for operation of cruise control.
• [Civic Si - Race] Added second coolant temperature sensor enable/disable.
• [Civic 155hp - Asia] ECU part numbers 37820-RRH-U510 to 37820-RRH-U540 added to list of supported models.

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