JHM K03 tuning (Stage 1, 2, and 2+)

**Unispeed** · 10-28-2008 06:06 PM

Anyone one here running their off the shelf tune? I am interested in it (hence why I am looking for a stock ecu) but would like to hear some feedback first from the people that are running it. How does it compare to say Giac X or APR. Is it a smooth power curve or does it look like the Giac X curve...

Oh, also state what elevation youre at cause they are in cali and I dont know if that makes a difference or not.

**Matt@JHM** · 10-28-2008 07:29 PM

I run the JHM K03 tune everyday in my car. Unfortunately, I can't compare it to the GIAC because I went from stock to JHM. It is a MBC tune and we even offer an in-car adjustable boost controller. The car runs extremely well and trapped 106 mph when I had just a chip, suspension and wheels. http://www.youtube.com/watch?v=LdqV_QmbzRE Also, here is a 70-95mph pull on 91 craptane http://www.jhmotorsports.com/videos/Matt_S4_Pull.wmv

We don't push our tunes that much, in fact they are not even available in our online store. One day we will do a big release but for now you will have to contact [email protected] for more information.

**Unispeed** · 10-28-2008 08:12 PM

Nice run. I like the fact that it is a MBC tune and I talked to Jason about it at an earlier time. I just wanted to see if someone else (no offense, but you are affiliated with JHM) had any good results with the JHM tune. Matt, you probably had your car custom tuned... I'm not talking about that, I am interested in your base Ko3 file that would ultimately get put in my ecu. Jason mentioned something about logs that would need to be sent back...

Another thing that I am interested is how you base tune will respond at 1080 ft about sea level. Thats where I am at right now.

Lastly, I was wondering about the boost created under load in 6th gear... I noticed that giac limits it in the lower RPMs... with a MBC there will be no such limitation... how does the computer respond to high boost at low rpms?

Originally Posted by Matt@JHM

I run the JHM K03 tune everyday in my car. Unfortunately, I can't compare it to the GIAC because I went from stock to JHM. It is a MBC tune and we even offer an in-car adjustable boost controller. The car runs extremely well and trapped 106 mph when I had just a chip, suspension and wheels. http://www.youtube.com/watch?v=LdqV_QmbzRE Also, here is a 70-95mph pull on 91 craptane http://www.jhmotorsports.com/videos/Matt_S4_Pull.wmv

We don't push our tunes that much, in fact they are not even available in our online store. One day we will do a big release but for now you will have to contact [email protected] for more information.

**Matt@JHM** · 10-28-2008 09:35 PM

Originally Posted by Unispeed

Nice run. I like the fact that it is a MBC tune and I talked to Jason about it at an earlier time. I just wanted to see if someone else (no offense, but you are affiliated with JHM) had any good results with the JHM tune. Matt, you probably had your car custom tuned... I'm not talking about that, I am interested in your base Ko3 file that would ultimately get put in my ecu. Jason mentioned something about logs that would need to be sent back...

Another thing that I am interested is how you base tune will respond at 1080 ft about sea level. Thats where I am at right now.

Lastly, I was wondering about the boost created under load in 6th gear... I noticed that giac limits it in the lower RPMs... with a MBC there will be no such limitation... how does the computer respond to high boost at low rpms?

It's not custom tuned, it's the base k03 file I run. The file I run will be the exact file put into your ECU. We run what we sell

**Matt@JHM** · 10-28-2008 10:47 PM

Originally Posted by Unispeed

Lastly, I was wondering about the boost created under load in 6th gear... I noticed that giac limits it in the lower RPMs... with a MBC there will be no such limitation... how does the computer respond to high boost at low rpms?

The boost created under load in 6th gear is 1-2 PSI more than other gears mainly because that is how MBCs react under more load. 6th gear = more load = slightly more PSI.

We don't just tune our files from 3k to 6.5k, we tune the entire power band. We use certain techniques in our file that allows the computer to respond very well to full throttle at low RPMs. Car still pulls very well at 3k in 6th gear on the highway.

**sCeRaXn** · 10-29-2008 09:06 AM

What boost does your chip run? Id also like to know how it would respond to higher elevations. I live a few hundred feet above sea level, but i go to the mountains quite often so my car will see a wide variety of elevations.

BTW-Thanks for shipping out that window regulator so quickly. I wasnt expecting it until early this week, but it was recieved and installed last saturday.

**Unispeed** · 10-29-2008 09:11 AM

The boost gets set by you with the MBC. The real question is what boost does it run at best? Will it adapt if one day you wanna run 7psi and the next you wanna run 15? The MBC is what sets this tune appart from the rest...

Originally Posted by sCeRaXn

What boost does your chip run? Id also like to know how it would respond to higher elevations. I live a few hundred feet above sea level, but i go to the mountains quite often so my car will see a wide variety of elevations.

BTW-Thanks for shipping out that window regulator so quickly. I wasnt expecting it until early this week, but it was recieved and installed last saturday.

**sCeRaXn** · 10-29-2008 09:42 AM

So it relies solely on correction factors to adjust fuel/timing to whatever boost you set it at? I dont know man, i dont see how cf's would be enough to cover such a wide range of boost levels. I have absolutely no experience with this ecu, but i have quite a bit of experience tuning Hondas. From what ive seen, you wouldnt be able to rely on one set cf to accurately adjust the tune according to boost. At higher boost levels youll see higher temps and cyl pressures(obviously lol), so your "cf" wouldnt be the same as at lower boost levels. It seems like the cf would change exponentially with the increase of boost, but i could be wrong. I figured theyd have it set at a certain boost level(like 17psi) and then theyd rely on the cf's to adjust the tune with small changes in boost. This is also one of the reasons i was wondering about how it would respond to elevation changes.

**Matt@JHM** · 10-29-2008 09:45 AM

Originally Posted by sCeRaXn

What boost does your chip run? Id also like to know how it would respond to higher elevations. I live a few hundred feet above sea level, but i go to the mountains quite often so my car will see a wide variety of elevations.

BTW-Thanks for shipping out that window regulator so quickly. I wasnt expecting it until early this week, but it was recieved and installed last saturday.

I've driven the car up in the mountains with this tune, although yes it slows down a bit, it still drives strong.

And no prob on the regulator, we ship most things out the next day.

Originally Posted by Unispeed

The boost gets set by you with the MBC. The real question is what boost does it run at best? Will it adapt if one day you wanna run 7psi and the next you wanna run 15? The MBC is what sets this tune appart from the rest...

I run 15 PSI on pump, 17psi on race. The track runs were on a 100 oct mix with 17 PSI.

**Unispeed** · 10-29-2008 11:35 AM

You brought up some really good points. Maybe Jason can pitch in some info to answer our questions.

Originally Posted by sCeRaXn

So it relies solely on correction factors to adjust fuel/timing to whatever boost you set it at? I dont know man, i dont see how cf's would be enough to cover such a wide range of boost levels. I have absolutely no experience with this ecu, but i have quite a bit of experience tuning Hondas. From what ive seen, you wouldnt be able to rely on one set cf to accurately adjust the tune according to boost. At higher boost levels youll see higher temps and cyl pressures(obviously lol), so your "cf" wouldnt be the same as at lower boost levels. It seems like the cf would change exponentially with the increase of boost, but i could be wrong. I figured theyd have it set at a certain boost level(like 17psi) and then theyd rely on the cf's to adjust the tune with small changes in boost. This is also one of the reasons i was wondering about how it would respond to elevation changes.

**WMi_S4** · 10-29-2008 05:28 PM

Originally Posted by Matt@JHM

I've driven the car up in the mountains with this tune, although yes it slows down a bit, it still drives strong.

And no prob on the regulator, we ship most things out the next day.

I run 15 PSI on pump, 17psi on race. The track runs were on a 100 oct mix with 17 PSI.

Damn 17psi isn't very much, I thought you guys were pushing like 19psi in ur tunes

**PinoyS4** · 10-29-2008 07:20 PM

when i feel a little crazy i crank my mbc to hit 27 psi sometimes

**WMi_S4** · 10-30-2008 11:46 AM

Originally Posted by PinoyS4

when i feel a little crazy i crank my mbc to hit 27 psi sometimes

Isn't 24-25 psi the peak efficiency for KO4's??

**ms4cd** · 10-30-2008 02:40 PM

Originally Posted by PinoyS4

when i feel a little crazy i crank my mbc to hit 27 psi sometimes

Or more...

**2ndEngineS4** · 10-30-2008 02:59 PM

Originally Posted by ms4cd

Or more...

Shiiiiiiiiet. I dunno about that. My VDO gauge only goes to 25. So I'm guessing after that. I can say that I've pegged it though.

**2ndEngineS4** · 10-30-2008 03:03 PM

Originally Posted by 2fastS4

Isn't 24-25 psi the peak efficiency for KO4's??

I actually think it's lower than that (18-19 psi iirc from the comp. map) but who cares?

**PinoyS4** · 10-30-2008 03:16 PM

Originally Posted by ms4cd

Or more...

he he

**jaybquick@JHM** · 11-01-2008 02:05 PM

I was notified about this thread.

Here is how our tuning stands out, since fuel curves and timing are not any secret and all tuners will have this ironed out pretty well.

We SPECIFICALLY make our tunes for manual boost controllers. We want our customers to have control of the boost to adjust for weather and gas.

How?
1. We open the throttle fully at 2k, since K03 cars are at full boost by 3k especially when equipped with a manual boost controller (and not the boost ramp limiting N75). So we don't want to slow this down by leaving it at the 4k setting. This also helps when launching. You tend to not have to rev it up as high to get it to leave really hard due to the throttle being opened earlier.
2. We remove the cars ability to throttle cut and limit boost in the tune (so the owner needs to have a boost guage and be smart)
3. We make the throttle extra responsive to match the characteristics of the manual boost controller.

The cars are still smooth but require less pedal to get what you want. We DO NOT force timing and keep the full use of the knock sensors and its ability to correct.

When you upgrade turbos we only charge a $100 upgrade fee. Our chips are also soldered on and installed in an encryption board so if updates our needed you don't have to send in your ECU and have downtime. video on how the chip is replaced --> http://jhmtuning.com/videos/JHM_ECU_...ent_How_To.wmv

There is no magic pill to make your car magically faster other than ramming timing down the cars throat and ignoring the knock sensors. We rather use the stock systems ability to protect itself and we work with your hardware on your car (exhaust, intercooling, etc) vs. forcing it to keep the longevity of your engines.

Hope this clears some stuff up, we don't put this stuff on our site so we can consult with each and every customer to make sure our tune is right for them and their goals.

Thread: JHM K03 tuning (Stage 1, 2, and 2+)

Thread Tools

Display

JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Re: JHM K03 tuning (Stage 1, 2, and 2+)

Bookmarks

Bookmarks

Posting Permissions