JHM Tune

[Gmoney1147]

Anyone have any dyno sheets for JHM's stage 1 and stage 2 tunes? Can't find them anywhere. All I have found is videos of pulls that's it.


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[enj826]

JHM doesn't release any dyno sheets for their tunes as far as I know because every dyno is different so it varies a lot between cars. From what I've gathered on the forum, it is one of the best tunes out there for your car.

[Gmoney1147]

JHM doesn't release any dyno sheets for their tunes as far as I know because every dyno is different so it varies a lot between cars. From what I've gathered on the forum, it is one of the best tunes out there for your car.

I know that but I'm looking for someone who has a dyno sheet from Northern California area


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[bOOOOstedAudi]

Why?

[Gmoney1147]

Why?

Just curious spec for stage 1 and stage 2


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[bOOOOstedAudi]

Take a dyno from a competitor and add more power or do a youtube search of JHM vs competitor.

[i3oricua]

Everything is in the sig. I'm in NorCal. This was a couple of weeks ago on the 034 Mustang Dyno.

[Gmoney1147]

Everything is in the sig. I'm in NorCal. This was a couple of weeks ago on the 034 Mustang Dyno.

Stage 1?



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[i3oricua]

Stage 1?



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Stage 2, I guess some consider it stage 2+ since I've done everything from fuel pump to IC, etc....

[Gmoney1147]

Stage 2, I guess some consider it stage 2+ since I've done everything from fuel pump to IC, etc....

Why is it so low


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[bOOOOstedAudi]

It's not. It's comparative. Think about this. A stage 2 104oct. RS7 put down 570 on that dyno. Look at what APR says it should have for power. That's why dyno numbers are supposed to be comparative measuring tools. That's also the highest dyno of the day for that dyno day. I did see a giac put down a lot less on a 2.0t.

If you want fast, go off of 1/4 mile times. Not dyno numbers.

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[LINDW4LL]

LOL his "why is it so low?" comment was incredibly predictable after reading his prior posts.

[vce1232000]

Ive cars put out some dyno # and fall flat on their face @ the track and not from ers error either

[i3oricua]

Why is it so low


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I can tell you that I've had a turbo integra that put 268 to the wheels and my Audi feels a lot faster than that car did. The cars pulls hard even with those numbers. It's a mustang dyno too and they're known for being conservative on they're numbers. I don't know what else to say really. I've got an upgrade coming, just taking my time getting there.


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[Jake@JHM]

Here is another customer dyno. Completely different, which is why comparing dyno numbers are mostly useless.

[i3oricua]

Here is another customer dyno. Completely different, which is why comparing dyno numbers are mostly useless.

And that actually looks more realistic to me in terms of feel. You really feel the torque in the car. Likely why I'll upgrade the rods for future proofing.


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[Jake@JHM]

And that actually looks more realistic to me in terms of feel. You really feel the torque in the car. Likely why I'll upgrade the rods for future proofing.


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There was another dyno that I can't find that was similar to this one too.

This was a FBO with stage 1 software (stage 2 wasn't out then)

[adam044]

Here is another customer dyno. Completely different, which is why comparing dyno numbers are mostly useless.

Wow, completely different compared to the first one.

[Jake@JHM]

Wow, completely different compared to the first one.

Yep.

[pezgoon]

Doesn't your (JHM) tune adapt after driving it over time as well? Meaning it develops the best power possible from what the car is able to give? (meaning mods, environment etc etc)

[adam044]

The throttle body will. You can do a throttle body re alignment and it makes a difference. Has to do with how the pedal reacts when you press it.

[LINDW4LL]

Doesn't your (JHM) tune adapt after driving it over time as well? Meaning it develops the best power possible from what the car is able to give? (meaning mods, environment etc etc)

Correct, but that is just an inherent feature of the ECU. As far as the adaptation process goes, the ECU relies on several tables to control air/fuel/spark timing and blends them in real-time based on current octane/atmospheric/elevation conditions. But, in addition to the real time calculations, it also builds a "profile" based on historic/long-term data. When you flash the ECU, the long-term data gets wiped, so it starts with the most "gentle" set of maps and pushes the ECU to a more and more aggressive blend based on what all of those conditions I just mentioned will allow. It takes several drive cycles to rebuild those long term adaptation maps.

[adam044]

And to reset it I believe you can pull the ECU fuse.