Hmmm, checked it versus mine and it is exact. Not sure but I would have to presume something in the EDM rom is not the same as the US as you had pointed too earlier.

 

Hi JB,
I do not run a edm map
I test this a JDM map

 

Couple Q's.

1. Im still on the stock sticks, but have a larger turbo... From my understanding, theres really no gains on the stock turbo w/ advanced Mivec in the 6500+ region, but would I benefit from advanced Mivec in the 6500+ region, w/ the larger turbo?

2. Considering the stock turbo hits peak tq @ 3500, and I was holding 28.8* mivec till 4500. Now w/ the new turbo, hitting @ ~ 4400, can I hold 28.8* mivec till 5500?

Thought Id ask first, since its been raining for days, and I cant get out there...

Been trying to diagnose why Im WAY down on power... And the shop that preformed the work, seemed to think it was on par... hitting 240 load.

 

Any benefit from intake cam advance at high airflow is going to be dependent on the ratio of boost to back pressure in the exhuast manifold. When the turbo is in its high efficiency range, there should be value to running some intake cam advance.

 

ty for the response!

 

So an FP black, running in the low 30s (a psi it should be very happy with), would benefit from more advanced mivec settings than a stock 8 turbo for example?

Sorry for the newb question... but:
The general idea is more advanced if it's going to help pull air out of the cylinder? And so more advance for a better flowing spot in the RPM range?

Sorry if that question doesn't make sense, i'm still learning lol.

Thanks

 

Depends on everything else done to the car and the one variable we cant do anything about, the stock head. Some are better than others and some are very much needing a port job. I find for the most part the MIVEC is more or less the same on stock cams independent of turbo and changes only based differing cams.

MIVEC is altering intake advance which affects overlap which affects cylinder scavenging. We are controlling cylinder pressure with it almost as much as we do with actual ignition timing.

aaron

 

Wouldnt mind some guidance/insight from the gurus, on my current work in progress. Unfortunately not doin any more pulls till I get to the shop this week/weekend, and get the car running right again, but was running this w/
25psi, 4* @ peak and 25psi and 10* up top w/ under 3 counts of knock.

BBK-B / stock motor / stock cams, 100 cell HFC, 65mm TB w/ inlet port match,
76mm DP, exhaust, 3.5" cooler, full intake kit, FP, 1000cc Inj., o2 housing (recirc.)



Im wondering if its too aggressive early on, causing overlap, and not enough up top?

 

Not a guru persay, but it looks like you could adjust the spool up and the top end has alittle too much overlap. Aaron could offer more info than I though.

 

Which version of evoscan logs MIVEC? I have 2.6 and I do not see the option.

 

I'm not sure if it comes setup in 2.6 but this is the line that you need to add to your data.xml
<DataListItem DataLog="N" Color="" Display="MIVEC" LogReference="MIVEC" RequestID="43" RequestID2="46" Eval="72-(0.6*x/32)" Unit="deg" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="33" ChartMin="0" ChartMax="33" ScalingFactor="1" Notes="" Priority="1" Visible="False" />

I use ID's 43 and 46...and make sure that in ecuflash you have the right addresses, 0x7650 and 0x7651 respectively.

 

thanks for the code! just to make sure where do i get the address for MIVEC in ECUFlash? i looked at the .xml for my rom and i saw this

<table name="MIVEC Intake Advance" address="68bd">
<table name="Engine Load" address="7a64"/>
<table name="RPM" address="7a96"/>
</table>

<table name="MIVEC Intake Advance Min" address="293a"/>

<table name="MIVEC Intake Advance Max" address="293c"/>

<table name="MIVEC Max vs Coolant Temp" address="6a04">
<table name="Coolant Temp" address="6fde"/>
</table>

 

No the bit of code I gave you needs to go in your evoscan's data.xml
Then you open up your MUT table in ecuflash and make sure you have the addresses 7650 and 7651 at the locations you selected to log mivec at (in this instance its 43 and 46 for me)

 

cool, the code was put into the Evoscan 2.6 data.xml

the bit of code i attached to the last message was from the rom.xml from ECUFlash, although i had to correct my post as i inserted the wrong code (in the post)

i'll check the mut table.

 

Probably way too much MIVEC at high airflow rates. In my logging of both boost pressure and exhaust manifold pressure, I found that exhaust manifold pressure starts to exceed boost pressure by ~6000 rpm. No point in having any MIVEC advance when exhaust manifold pressure exceeds boost pressure. I'm on a BBK Full and E85, and you're on a BBK-B and pump gas, but I suspect that setting MIVEC to 0 at 6000 rpm and 220 load will give a bit better top end. Probably not much better, but a bit better.