Jester’s Hondata thread

[PointByPatrol]

I need to get you the basemap asap when you unlock so we can start adjusting things. The extra power will make you really quick just on the basemap.

@HONDANB is already running it and loving it so far. And that is just the equivalent of a OTS map. He wants to finish it on the dyno. And I’m also waiting on dyno time to post results and findings.

I need to just suck it up and send out the ECU. I have a 4 runner that I can drive, but I don't enjoy driving it, so I've been sandbagging. If we can dial it in using datalogs from real track conditions then I think you'll have an additional product to sell! Official tune of the PointByPatrol!

Sponsored

 

[Jester04]

I need to just suck it up and send out the ECU. I have a 4 runner that I can drive, but I don't enjoy driving it, so I've been sandbagging. If we can dial it in using datalogs from real track conditions then I think you'll have an additional product to sell! Official tune of the PointByPatrol!

Yes! I try to make every car unique to the conditions and wants of the client. Need to get you in that 4 runner.

 

[Jester04]

Here is a little video of a 40-120mph pull on the car. Only mod is a intercooler. Awaiting dyno time so I can update the thread with numbers and then all the details tuning wise.

This was done in individual mode with traction control left on.

 

[Jester04]

New Hondata tables are up! And with time more features will be added so looking forward to it. Now we have even more control of the car and parameters.

 

[Jester04]

Pops and bangs at idle.

 

[ForeverCar]

Thanks for sharing great insights! I am a fan of sharing information as that is likely to up the quality of tunes overall.

Is it relatively easy to scale tables for say 8000 rpm redline? As we go beyond factory parameters, I would imagine we will need to figure out turbo model data as well.

 

[Jester04]

Thanks for sharing great insights! I am a fan of sharing information as that is likely to up the quality of tunes overall.

Is it relatively easy to scale tables for say 8000 rpm redline? As we go beyond factory parameters, I would imagine we will need to figure out turbo model data as well.

So can’t give insight on the new turbo tables since I have not used them yet since I’m stock turbo. Scaling up in RPM’s is ok to do, but for safety reasons I would recommend upgrading internals so it can handle it. I would not go over 7500rpms on a stock engine.

Hondata will keep adding features and making the software more complete so in time it will get better. But if 8k rpm’s are the goal I would jump to Motec if it were me. Hondata I would limit it to 7,500-7800rpms and even then you will lose some resolution of the tables.

And I’m all for sharing to a certain extent, and I will gladly help people to the best of my knowledge. But some caution comes with that. Too much info can be misused and other people can take advantage of it too. A lot of people copy paste other tuner’s work.

 

[ABPDE5]

Aren't there hardware issues with valve float (i.e. stiffer springs are req.) and w. fueling past 7800?

Or is that mis-information because most are tuning on Hondata and Hondata isn't well equipped for that, leading to float / fueling symptoms?

 

[Jester04]

Aren't there hardware issues with valve float (i.e. stiffer springs are req.) and w. fueling past 7800?

Or is that mis-information because most are tuning on Hondata and Hondata isn't well equipped for that, leading to float / fueling symptoms?

Yes there will be issues up there especially in the valvetrain. An upgrade is needed to properly control the valves at those higher rpms. I would be comfortable taking the stock valvetrain to 7200-7400rpms.

Also I have dyno time booked on Monday at around 4:00pm so will finally have numbers for you guys.

 

[ForeverCar]

For high rpm, I think there are quite a few areas to address in order to do it “properly”.

1. As @Jester04 already pointed out, having sufficient resolution in tables is important. While that might not impact dyno numbers, better resolution (assuming well tuned) will result in a faster and more reliable car.
2. Valve control. Ideally, lighter valves, cams, head work, springs, etc.
3. The bottom end might be okay. Rod bolts could be a good idea. Of course, lighter pistons, longer rods (assuming geometry and other compromises allow), bearings, rings could be helpful if one wants to go further.
4. Overall flow of the system. The turbo is likely the big one here. Flowing enough air at 7500 rpm for peak power at the desired efficiency level and pressure ratio likely means a different turbo.
5. The HPFP is cam driven mechanical. This is where another mechanical limitation exists. The XDI pump is rated for 7800 rpm. If one is not maxing things out, 8000 rpm should be doable.

 

[Jester04]

For high rpm, I think there are quite a few areas to address in order to do it “properly”.

1. As @Jester04 already pointed out, having sufficient resolution in tables is important. While that might not impact dyno numbers, better resolution (assuming well tuned) will result in a faster and more reliable car.
2. Valve control. Ideally, lighter valves, cams, head work, springs, etc.
3. The bottom end might be okay. Rod bolts could be a good idea. Of course, lighter pistons, longer rods (assuming geometry and other compromises allow), bearings, rings could be helpful if one wants to go further.
4. Overall flow of the system. The turbo is likely the big one here. Flowing enough air at 7500 rpm for peak power at the desired efficiency level and pressure ratio likely means a different turbo.
5. The HPFP is cam driven mechanical. This is where another mechanical limitation exists. The XDI pump is rated for 7800 rpm. If one is not maxing things out, 8000 rpm should be doable.

Yes these are all the appropriate considerations when deciding what to do with the car. And what the goals of the owner are. Things are not as simple as oh I want 8k rpms and a huge turbo. A lot of time planning and upgrading parts goes into this.

 

[Yorkman1]

makes me miss my F20

 

[Jester04]

makes me miss my F20

We can still get the K20C to rev it just takes a bit more work lol.

 

[ABPDE5]

I'd like to think a visit to 4Piston is in my future

 

[Jester04]

I'd like to think a visit to 4Piston is in my future

I want the guys at 4 piston to do the engine on my s2k. But that will require time as its crazy expensive lol. The type R might get some goodies from 4 piston too.

Sponsored