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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Sat Jun 10, 2017 6:46 pm 
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Joined: Tue May 05, 2015 9:01 pm
Posts: 13
terryjr wrote:
kalisto2002 wrote:
Does carberry work with the JDM Forrester XT ecus?

Image


Since it uses the 02wrx flash method it "should" work

Im no expert but ecuflash has a test write function. If it says all good then i believe it should work




But it doesn't necessarily mean the ecu will work correctly even after a test write?


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Sat Jun 10, 2017 8:23 pm 
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Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
kalisto2002 wrote:
terryjr wrote:
kalisto2002 wrote:
Does carberry work with the JDM Forrester XT ecus?

Image


Since it uses the 02wrx flash method it "should" work

Im no expert but ecuflash has a test write function. If it says all good then i believe it should work




But it doesn't necessarily mean the ecu will work correctly even after a test write?


Maybe find a spare ecu to try it on. I tried a quick search but hard to tell if its an sf5 or just a swapped usdm until a read half the posts so i quit looking

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Sat Jun 10, 2017 8:35 pm 
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Joined: Sat Jun 02, 2007 6:00 pm
Posts: 19
So we will flash over the existing JDM ECU we currently have to run this rom?


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Sat Jun 10, 2017 9:12 pm 
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Newbie

Joined: Tue May 05, 2015 9:01 pm
Posts: 13
Its a Swapped 03 USDM WRX with a Forrester ECU and Engine


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Tue Jun 13, 2017 5:23 am 
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Senior Member

Joined: Sat Feb 12, 2011 7:27 pm
Posts: 1902
Location: Northern NSW
If CarBerry does not load, you can revert to old tune no issues

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Amateurs built the Ark, Professionals built Titanic

SH9 XT - Flex Fuel
GC8 AUDM ECULABs Development
Black N14 SSS Pulsar(VQ35DE Altima swap) on EZ30R ECU
Audi SQ5
Mercedes GLC250 - Being tuned with RomRaider


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Wed Jun 14, 2017 1:47 pm 
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Experienced

Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
since im setting up the 3port, i wanted to make sure my MT per gear values were correct. Im using a 98 forester tranny.

Any who i read the per gear boost compensation thread and the math seemed complicated. My brain does math different than others.

First i need to confirm rev/mile. Revolution of what per mile? I assume the engine. So if thats the case wouldnt the formula be:

(5280' / Tire Circumference" x 12") This gives you tire revolutions per mile

Tire Revs per Mile x Final Drive Ratio x Gear Ratio of each gear


FWIW, the values i get for my forester 5mt and 245/40/18's are:
1st = 11,434
2nd = 6,809
3rd = 4,661
4th = 3,509
5th = 2,516 engine revs per mile

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Mon Jun 19, 2017 2:51 am 
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Experienced

Joined: Mon Dec 19, 2011 12:10 am
Posts: 208
terryjr wrote:
since im setting up the 3port, i wanted to make sure my MT per gear values were correct. Im using a 98 forester tranny.

Any who i read the per gear boost compensation thread and the math seemed complicated. My brain does math different than others.

First i need to confirm rev/mile. Revolution of what per mile? I assume the engine. So if thats the case wouldnt the formula be:

(5280' / Tire Circumference" x 12") This gives you tire revolutions per mile

Tire Revs per Mile x Final Drive Ratio x Gear Ratio of each gear


FWIW, the values i get for my forester 5mt and 245/40/18's are:
1st = 11,434
2nd = 6,809
3rd = 4,661
4th = 3,509
5th = 2,516 engine revs per mile


I forget how I arrived at these numbers. But for my 1999 Forester gearbox on 215/55/17s
Min 1st / Max 2nd : 9197.95
Min 2nd / Max 3rd : 5642.11
Min 3rd / Max 4th : 3981.00
Min 4th / Max 5th: 2911.39


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Mon Jun 19, 2017 7:11 am 
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Experienced

Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
smennie wrote:
terryjr wrote:
since im setting up the 3port, i wanted to make sure my MT per gear values were correct. Im using a 98 forester tranny.

Any who i read the per gear boost compensation thread and the math seemed complicated. My brain does math different than others.

First i need to confirm rev/mile. Revolution of what per mile? I assume the engine. So if thats the case wouldnt the formula be:

(5280' / Tire Circumference" x 12") This gives you tire revolutions per mile

Tire Revs per Mile x Final Drive Ratio x Gear Ratio of each gear


FWIW, the values i get for my forester 5mt and 245/40/18's are:
1st = 11,434
2nd = 6,809
3rd = 4,661
4th = 3,509
5th = 2,516 engine revs per mile


I forget how I arrived at these numbers. But for my 1999 Forester gearbox on 215/55/17s
Min 1st / Max 2nd : 9197.95
Min 2nd / Max 3rd : 5642.11
Min 3rd / Max 4th : 3981.00
Min 4th / Max 5th: 2911.39



Welp, if i use my same math, and take stock tire size and gearing for a 2002 wrx. I DO NOT get the values in the stock rom. So now i have no idea how to calculate gear determiners

Edit: i think i found my answer. I need to divide them for the center of each. Ie: (11434+6809)/2 for first value

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Tue Jun 20, 2017 7:46 am 
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Experienced

Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
I was logging this morning, it was a little cooler than its been. I'm still working on tuning the ebcs.

BUt I noticed Airflow g/sec flat line at 399.99 g/sec. Ive seen 360-380 lately since i've bumped it up to 28psi, and i expected to see 400's soon but i didnt know it stopped at 399.99. Is this an ecu airlfow limit or just a logging thing? The car is full speed density, i just track airflow to see how its running

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Wed Jul 19, 2017 2:53 pm 
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Experienced

Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
QUESTION!

Anyone else's "Ethanol Content Global Fuel Compensation" table go from 0% to 56.3" with e85 at 50.1%. I thought E85 was 30%. I never touched this table

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Wed Jul 19, 2017 3:28 pm 
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Experienced

Joined: Thu Dec 18, 2014 6:31 pm
Posts: 699
Location: oregon
"30%" was a rough estimate where a person would continue to play with scalar difference.

it was never a statement mean't to be accurate, or an ending point. ethanol content of "e85" varies. could be 65%, 75%, or 85% depending on region, distributor, and season.

if stoichiometric for gasoline is 14.7 and stoichiometric for 85% ethanol is 9.765, then 14.7/9.765 = adjustment factor or 1.505, or 50.5% in this math example.

if we take add 56.3% fueling to 14.7:1 we get 9.40:1, so using this compensation it is thinking that 100% ethanol is running around 9.4:1 AFR for stoich.

stoichiometric rates of fuel vary a little given their makeup of additives and whatever they used to denature the ethanol. You can denature 100% drinking alcohol to fuel by adding 2% denaturant or pump gas, and e85 could be 85% ethanol where 2% of that is already gasoline or other denature approved chemical like denatonium benzoate.

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'03 USDM WRX - EJ205/TD04/FMIC/SD - 2.72 g/rev @ 3950 rpm and 237 g/s @ 6100 rpm


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Mon Jul 31, 2017 12:28 am 
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Experienced

Joined: Sun Jan 13, 2013 1:58 am
Posts: 250
I finally got the flex fuel up and running and it works great. The stock compensation settings are pretty spot on but if any of you guys already have ethanol in your pump gas (we have 10% ethanol in our pump gas here in California) you're going to have to account for that in your table.


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Tue Aug 01, 2017 7:12 am 
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Experienced

Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
Artizle wrote:
I finally got the flex fuel up and running and it works great. The stock compensation settings are pretty spot on but if any of you guys already have ethanol in your pump gas (we have 10% ethanol in our pump gas here in California) you're going to have to account for that in your table.



about time :wink:

I have never messed with the flex fuel tables but i havent run gasoline much either. Most of my "map1" injector tables and tip in "map1" tables i adjusted by taking my 1000cc injectors divide into 440cc and then prorating the values. But then for the map 2 tables, i found i basically needed to double the gas tables. So my map2 e85 tables are pretty close to stock. Really gotta flood the E in to a cold motor

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Tue Aug 01, 2017 9:52 am 
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Experienced

Joined: Fri Mar 12, 2010 10:19 am
Posts: 157
What do you guys use to check DTCs with version 4.2?
Learning View V0.6a can't read DTCs


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 Post subject: Re: CarBerry ROM - 16bit Speed Density Project
PostPosted: Tue Aug 01, 2017 11:04 am 
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Experienced

Joined: Mon Nov 30, 2015 2:31 pm
Posts: 328
Location: Pittsburgh PA
i use torque app and an elm327

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98 Forester 5mt - CarBerry 4.2 - Ej22 Hybrid


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