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      09-04-2014, 02:20 PM   #1
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▀▄ eas | jc05e46m3's JB4 Stage 3 testing: 491whp/494ft-lb tq.

jc05e46m3 is no stranger to EAS and was among the first to receive one of the beta JB4 tunes to test with. Shortly after installation (and a few Mexico runs), he returned to the dyno to see what numbers are being putting down.

Runs are maps 0 (off), 1 (mild boost) and 7 (E20 map).



Running Stage 3 configuration on E20 fuel, stock exhaust.

Modifications
Stock, charcoal liners removed from airbox
E20 Fuel

STD


SAE


Conditions
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Last edited by tom @ eas; 09-04-2014 at 03:46 PM..
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      09-04-2014, 02:23 PM   #2
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Quote:
Originally Posted by tom @ eas View Post
jc05e46m3 is no stranger to EAS and was among the first to receive one of the beta JB4 tunes to test with. Shortly after installation (and a few Mexico runs), he returned to the dyno to see what numbers are being putting down.

Runs are maps 0 (off), 1 (mild boost) and 7 (E20 map).
Thanks for the write-up Tom! As always, it's been great to work with you guys.


I still cringe looking at the dyno conditions, lol. Super excited about the upcoming dyno day at the end of the month!
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      09-04-2014, 02:28 PM   #3
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Quote:
Originally Posted by jc05e46m3 View Post
Thanks for the write-up Tom! As always, it's been great to work with you guys.

I still cringe looking at the dyno conditions, lol. Super excited about the upcoming dyno day at the end of the month!
It's been hot in the shop, finally cooling down.
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      09-04-2014, 03:08 PM   #4
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Good numbers. Looking forward to dyno day. I have stage 6 coming for you Jason lol
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      09-04-2014, 03:09 PM   #5
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So when you say off you mean the car is just running stock?

What do you estimate a car running on 93 octane will be able to do on a basic mild boost map?
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      09-04-2014, 03:14 PM   #6
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Good power! But I will wait for reliable ECU tune to come out... maybe it will never happen :P
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      09-04-2014, 03:15 PM   #7
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Quote:
Originally Posted by dmk08 View Post
So when you say off you mean the car is just running stock?

What do you estimate a car running on 93 octane will be able to do on a basic mild boost map?
MAP 0 is stock/disabled, correct.

MAP 1 adds about ~4lb boost, expect about a 40/40 increase on average on pump gas. A bit more octane (we're limited to 91 here in CA) would be helpful to keep power up top.
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      09-04-2014, 03:32 PM   #8
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Quote:
Originally Posted by ///M ARMY View Post
Good numbers. Looking forward to dyno day. I have stage 6 coming for you Jason lol
Bring it, my friend. Im working stage 13 right now.

Quote:
Originally Posted by dmk08 View Post
So when you say off you mean the car is just running stock?

What do you estimate a car running on 93 octane will be able to do on a basic mild boost map?
Map 0 is running stock, correct. I would estimate that a car running 93 would get similar numbers to what you see here on mine. The ethanol I put in makes it a little above what 93OCT would be.


Quote:
Originally Posted by parky1215 View Post
Good power! But I will wait for reliable ECU tune to come out... maybe it will never happen :P
It has already happened, but is still in development. As far as the JB4 is concerned, they have proven to be very reliable when run properly.

Quote:
Originally Posted by tom @ eas View Post
MAP 0 is stock/disabled, correct.

MAP 1 adds about ~4lb boost, expect about a 40/40 increase on average on pump gas. A bit more octane (we're limited to 91 here in CA) would be helpful to keep power up top.
This is absolutely correct. You can see where mine drops off on the more aggressive Map 7. I have a fix for that.
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      09-04-2014, 03:32 PM   #9
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Looks like the top end of Map 7 (E20) needs a bit more work as it appears to drop below Map 1 around 6K RPMs. Nonetheless, the mid range power increase for both maps is great. However, it likely makes the need for wider and stickier tires even more obvious.

Separately, does the charcoal delete really make a difference? Also, what is the purpose of the charcoal in the first place?
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      09-04-2014, 03:39 PM   #10
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Quote:
Originally Posted by irablumberg View Post
Looks like the top end of Map 7 (E20) needs a bit more work as it appears to drop below Map 1 around 6K RPMs. Nonetheless, the mid range power increase for both maps is great. However, it likely makes the need for wider and stickier tires even more obvious.

Separately, does the charcoal delete really make a difference? Also, what is the purpose of the charcoal in the first place?
Tbh, I don't think the map needs work. I just need to run better fuel (whether it be E85 or 100+). I was told to do so, but didn't want to waste good gas on a hot afternoon drive from SD to LA. I will, however, be running something better at the next dyno day.

The stickier tires is a great point. It is going to be a necessity for those who wish to up the boost and run better fuels. The day following the dyno, I added 2 more gallons of E85 and it was a completely different driving experience. I was doing a lot of logging and testing of different combinations, so we will see what's next. My personal plan is to have 305s out back here very soon.

I don't know if the charcoal filters make a difference, but I will say that I read that only North America gets them (didn't verify). From a flow standpoint, they definitely impede the flow post airbox, so I removed them just for piece of mind.
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      09-04-2014, 03:48 PM   #11
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Quote:
Originally Posted by jc05e46m3 View Post
Tbh, I don't think the map needs work. I just need to run better fuel (whether it be E85 or 100+). I was told to do so, but didn't want to waste good gas on a hot afternoon drive from SD to LA. I will, however, be running something better at the next dyno day.

The stickier tires is a great point. It is going to be a necessity for those who wish to up the boost and run better fuels. The day following the dyno, I added 2 more gallons of E85 and it was a completely different driving experience. I was doing a lot of logging and testing of different combinations, so we will see what's next. My personal plan is to have 305s out back here very soon.

I don't know if the charcoal filters make a difference, but I will say that I read that only North America gets them (didn't verify). From a flow standpoint, they definitely impede the flow post airbox, so I removed them just for piece of mind.
From an airflow perspective, there's no reason to run the liners. Just chuck em.

BMC or K&N filters would be a nice bonus while in there.
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      09-04-2014, 05:23 PM   #12
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Wow, good number. I think my butt dyno number was close to that.
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      09-04-2014, 05:51 PM   #13
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Awesome numbers guys

Easily could've broken into the 500+ club with a few more runs and cooler conditions
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      09-04-2014, 07:21 PM   #14
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Quote:
Originally Posted by ///M ARMY View Post
Good numbers. Looking forward to dyno day. I have stage 6 coming for you Jason lol
Can't wait to see what yours pulls with the addition of DPs and GTC.
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      09-04-2014, 08:02 PM   #15
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ive personally never heard of anyone running mixed fuel tuning.. too many variables that wont be consistant.. even running full e85 in evo, people had ethanol reader installed to make sure the fuel was of good quality.. unless im missing something, sounds dangerous.
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      09-04-2014, 08:38 PM   #16
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Quote:
Originally Posted by ixse
ive personally never heard of anyone running mixed fuel tuning.. too many variables that wont be consistant.. even running full e85 in evo, people had ethanol reader installed to make sure the fuel was of good quality.. unless im missing something, sounds dangerous.
My thoughts also. I'll wait to see what happens with enthusiasm.
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      09-04-2014, 09:20 PM   #17
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Quote:
Originally Posted by ixse View Post
ive personally never heard of anyone running mixed fuel tuning.. too many variables that wont be consistant.. even running full e85 in evo, people had ethanol reader installed to make sure the fuel was of good quality.. unless im missing something, sounds dangerous.
I'll be quick to admit that I have zero experience with piggyback tuning, but I do have quite a bit of experience with GT-R flash tuning on both pump gas & E85. I wasn't running a flex-fuel setup on mine and here in the northeast the seasonal mix varies dramatically (I've seen it range from E68--E86)...so I had to watch ethanol content very closely to keep everything safe. I'd be interested in knowing how these ECUs compensate with the guesti-mixing of E85 and pump gas. I'm not, blasting anyone, just interested in learning how tuning works on this platform.
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      09-04-2014, 09:36 PM   #18
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Quote:
Originally Posted by VMRWheels View Post
Awesome numbers guys

Easily could've broken into the 500+ club with a few more runs and cooler conditions
One more run and I bet it would've broken 500. The ECU was adapting well on the dyno with ~10-15whp gains with each run.

Quote:
Originally Posted by Deviant View Post
Can't wait to see what yours pulls with the addition of DPs and GTC.
We'll see! Ill be running different fuel too.

Quote:
Originally Posted by ixse View Post
ive personally never heard of anyone running mixed fuel tuning.. too many variables that wont be consistant.. even running full e85 in evo, people had ethanol reader installed to make sure the fuel was of good quality.. unless im missing something, sounds dangerous.
It's not dangerous. The AFRs are safe and the Ethanol content is low. The rise in the octane levels is the goal with utilizing the E85. (Not to mention that E85 is VERY consistent in SoCal with the year-round climate) I'm going to play with VP C85 as well to see how that works out

Quote:
Originally Posted by Andrew115 View Post
My thoughts also. I'll wait to see what happens with enthusiasm.
Quote:
Originally Posted by Zanardi43 View Post
I'll be quick to admit that I have zero experience with piggyback tuning, but I do have quite a bit of experience with GT-R flash tuning on both pump gas & E85. I wasn't running a flex-fuel setup on mine and here in the northeast the seasonal mix varies dramatically (I've seen it range from E68--E86)...so I had to watch ethanol content very closely to keep everything safe. I'd be interested in knowing how these ECUs compensate with the guesti-mixing of E85 and pump gas. I'm not, blasting anyone, just interested in learning how tuning works on this platform.
See above.
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      09-04-2014, 10:22 PM   #19
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Vbox runs yet?
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      09-04-2014, 10:39 PM   #20
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Quote:
Originally Posted by jc05e46m3 View Post
The flex fuel sensor is integrated in the JB4 so it isn't a complete crap shoot.
Just to clarify there is no flex fuel sensor in the JB4.
It (and the DME) are smart enough to make adjustments based on other parameters but it has no way to actually read ethanol content.
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      09-04-2014, 11:11 PM   #21
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Quote:
Originally Posted by e39>all View Post
Vbox runs yet?
lol

Quote:
Originally Posted by Nugget View Post
Just to clarify there is no flex fuel sensor in the JB4.
It (and the DME) are smart enough to make adjustments based on other parameters but it has no way to actually read ethanol content.
This is true. I just revisted my emails with Terry and had mixed up the FF (for wastegates) with FF as in Flex fuel. Original post edited.
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      09-04-2014, 11:37 PM   #22
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Quote:
Originally Posted by e39>all
Vbox runs yet?
He doesn't want to get a slower trap speed than the stock car from the other post lol .
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