Hondata FL5 FlashPro released

[Jester04]

I think you mentioned it before, but what's the issue with the spike low? LSPI?

On lower gears there should be no problem. Its like @mbaapk said. Just don’t smash the throttle on a high gear while at low rpms and you should be good. Anything after 3k rpms on lower gears will be good.

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[Jester04]

Ive been schooled on here that valve float can be an issue if romping on it in low rpm at a higher gear. Similar to trying to go fast on a 10 speed in 10th gear from a slow speed starting point - it stresses everything. Ive been told “don’t be dumb” and it should be fine. By way of all my research its less about the power numbers and more about how its applied. Low gear romping is less worrisome given the gearing is made to get up to speed but jamming on it in 6th while going 55 is a recipe for grenading.

Just a slight correction on this. Everything else is spot on. Its not really valve float but pre ignition the main issue with low Rpm loading at high gears. On that note, valve float can happen on any car not just talking about the type R once the springs can’t keep up with the engine speed or amount of boost a engine is running.

 

[Fresh]

Anyone know if/when Hondata's Jailbreak Tour is coming to the Midwest?

It will be in Marysville, Ohio at the Honda Heritage Museum this Sunday, 9-24, 11-3...

 

[Fresh]

Its conservative power wise, but it does spike hard down low to get the most torque. Still should be more than safe for someone who does not want to go crazy.

With that said, and from your later post, if I do this Hondata Stock Map, I should:

1. Not romp on it at all below 3krpm
2. Not romp on it at all in any higher gear (I assume this means 4, 5, and 6)?

If this is the case, I'm not sure (moreless, I'm very sure...) I don't want to risk LSPI when I plan to track this 50% of it's life... right?

From an engineering POV, what's the point at which LSPI happens? Specific cylinder pressures with bad oil blowby and less-than-par rated high-octane gas?

1. If LSPI will NEVER happen with the stock mapping, I may (will likely) just keep the mapping stock.
2. If LSPI may happen with Hondata, I will likely keep the ECU in jail.
3. If LSPI limits are known, I may ask ya'll if I can make a custom map to avoid this limit once jailbroke with Hondata (and the limits are known...)

Yes, I read Clark-Kent's post... Hondata needs to be conservative.

Follow-up... is the first graphic by the OP the stock car and then stock+jailbroke ECU only? I think those numbers look too healthy to me...

 

[Jester04]

With that said, and from your later post, if I do this Hondata Stock Map, I should:

1. Not romp on it at all below 3krpm
2. Not romp on it at all in any higher gear (I assume this means 4, 5, and 6)?

If this is the case, I'm not sure (moreless, I'm very sure...) I don't want to risk LSPI when I plan to track this 50% of it's life... right?

From an engineering POV, what's the point at which LSPI happens? Specific cylinder pressures with bad oil blowby and less-than-par rated high-octane gas?

1. If LSPI will NEVER happen with the stock mapping, I may (will likely) just keep the mapping stock.
2. If LSPI may happen with Hondata, I will likely keep the ECU in jail.
3. If LSPI limits are known, I may ask ya'll if I can make a custom map to avoid this limit once jailbroke with Hondata (and the limits are known...)

Yes, I read Clark-Kent's post... Hondata needs to be conservative.

Follow-up... is the first graphic by the OP the stock car and then stock+jailbroke ECU only? I think those numbers look too healthy to me...

So just to ease your mind. You can do the mods no problem, and you can romp on the car. Just down shift a gear or 2 down to bring the rpms up a bit. To help with decreasing load on the engine. LSPI can even happen with a stock car and stock tune. Its just a byproduct of forced induced cars.

 

[mbaapk]

So just to ease your mind. You can do the mods no problem, and you can romp on the car. Just down shift a gear or 2 down to bring the rpms up a bit. To help with decreasing load on the engine. LSPI can even happen with a stock car and stock tune. Its just a byproduct of forced induced cars.

I equate all of your guidance on this now as don’t drive like a doofus and high chances you’ll be fine.

 

[Jester04]

I equate all of your guidance on this now as don’t drive like a doofus and high chances you’ll be fine.

yes sir! That is basically it

Also use the best fuel you can find.

 

[mbaapk]

yes sir! That is basically it

Also use the best fuel you can find.

I plan on 92-93 octane on a 91 tune.

 

[Fresh]

So just to ease your mind. You can do the mods no problem, and you can romp on the car. Just down shift a gear or 2 down to bring the rpms up a bit. To help with decreasing load on the engine. LSPI can even happen with a stock car and stock tune. Its just a byproduct of forced induced cars.

But here is my issue… the brake and gas pedals are damn near on/off buttons when I track. I’m still weary of doing this flash but I guess to each their own.

 

[Clark_Kent]

But here is my issue… the brake and gas pedals are damn near on/off buttons when I track. I’m still weary of doing this flash but I guess to each their own.

If you're wary, don't do it. I think some here have tuned so many cars over the years, SPI doesn't even get a second thought. The default is: "Tuning solution available from a reputable outfit?! Where do I send my money and how fast can I get it?"

 

[Jester04]

I plan on 92-93 octane on a 91 tune.

good choice if its the most available in your area.

 

[Jester04]

But here is my issue… the brake and gas pedals are damn near on/off buttons when I track. I’m still weary of doing this flash but I guess to each their own.

yes your accelerator pedal will be on/off. But the way the engine responds, starts to build rpms and boost is progressive.

 

[Vito.FL5]

I dont understand the issue with LSPI, what stop you from making the boost curve more progressive on the low end to avoid this? or even getting the car to enrich earlier

 

[Vito.FL5]

Cheaper options are unlikely. Working out all of the hardware and software available for flashing the FL5 ECU is a big undertaking for what is ultimately a limited number of cars. It is likely that Hondata will be working a long time to recoup the money they have already invested. I am not aware of any other options coming to the US market.

at this point there are many tools that can read/write the FL5 ecu on a bench. Some can patch it and run a couple tables live. It is a lot cheaper on the long run if you pretend to tune over 5-6 cars.

 

[Jester04]

at this point there are many tools that can read/write the FL5 ecu on a bench. Some can patch it and run a couple tables live. It is a lot cheaper on the long run if you pretend to tune over 5-6 cars.

It is but the market here does not really support it. And most people don’t have the knowledge on how to do it. Also from a tuner stand point that is cost to the customer. You really don’t invest anything with Hondata from a business standpoint.

You just put the knowledge.

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