STD Tuning Engine Homemade. TURBO BOOST / RPM Meter

Homemade. TURBO BOOST / RPM Meter

Homemade. TURBO BOOST / RPM Meter

 
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casioqv
OM602 Turbo

116
01-25-2011, 03:18 PM #51
(01-25-2011, 01:25 PM)olefejer Because i have him put one up for sale to me. so that i now have 2 pcs, to messure both forward and returnline.

He put one up for me, and it's on the way! $44.78 USD shipped to the USA. A good price, but not something I want to pay twice to get return line data.

Did you try to calibrate yours, or are you just going to go with the rough calibration estimates he provides?

I'm very excited about this- first I'll collect some hard data on how numerous variables affect fuel economy in these old diesel cars to see what I can easily change to improve it. Then I'll try using the sensor in an Arduino powered fully automated biodiesel reactor.
This post was last modified: 01-25-2011, 03:42 PM by casioqv.

-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)
casioqv
01-25-2011, 03:18 PM #51

(01-25-2011, 01:25 PM)olefejer Because i have him put one up for sale to me. so that i now have 2 pcs, to messure both forward and returnline.

He put one up for me, and it's on the way! $44.78 USD shipped to the USA. A good price, but not something I want to pay twice to get return line data.

Did you try to calibrate yours, or are you just going to go with the rough calibration estimates he provides?

I'm very excited about this- first I'll collect some hard data on how numerous variables affect fuel economy in these old diesel cars to see what I can easily change to improve it. Then I'll try using the sensor in an Arduino powered fully automated biodiesel reactor.


-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)

olefejer
GT2559V

197
01-25-2011, 03:36 PM #52
(01-25-2011, 03:18 PM)casioqv Did you try to calibrate yours, or are you just going to go with the rough calibration estimates he provides?

I'm very excited about this- first I'll collect some hard data on how numerous variables affect fuel economy in these old diesel cars to see what I can easily change to improve it. Then I'll try using the sensor in an Audrino powered fully automated biodiesel reactor.
I have had it connected to the arduino, and run 1 liter true it, and i think i got 4844 counts/liter, so thats the startpoint, then i just going to mount it and then run the car from 3/4 to 1/2 tank then i have used almost exactly 20 liter and then adjust the constant.

This post was last modified: 01-25-2011, 03:42 PM by olefejer.

1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)
olefejer
01-25-2011, 03:36 PM #52

(01-25-2011, 03:18 PM)casioqv Did you try to calibrate yours, or are you just going to go with the rough calibration estimates he provides?

I'm very excited about this- first I'll collect some hard data on how numerous variables affect fuel economy in these old diesel cars to see what I can easily change to improve it. Then I'll try using the sensor in an Audrino powered fully automated biodiesel reactor.
I have had it connected to the arduino, and run 1 liter true it, and i think i got 4844 counts/liter, so thats the startpoint, then i just going to mount it and then run the car from 3/4 to 1/2 tank then i have used almost exactly 20 liter and then adjust the constant.


1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)

casioqv
OM602 Turbo

116
01-25-2011, 03:52 PM #53
I think you can get by with a single calibration constant using 2 sensors, because the difference in flow rates between max fuel/high rpm and light fuel/low rpm will be somewhat small given the nature of the high volume lift pump which returns most of the fuel it pumps.

Since I'm going to try for a single sensor system, I expect I'll need a non-linear calibration table to get accurate data at low flowrates. I think with such a table I can extend the flow range the sensor can accurately measure outside of the specs.

-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)
casioqv
01-25-2011, 03:52 PM #53

I think you can get by with a single calibration constant using 2 sensors, because the difference in flow rates between max fuel/high rpm and light fuel/low rpm will be somewhat small given the nature of the high volume lift pump which returns most of the fuel it pumps.

Since I'm going to try for a single sensor system, I expect I'll need a non-linear calibration table to get accurate data at low flowrates. I think with such a table I can extend the flow range the sensor can accurately measure outside of the specs.


-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)

winmutt
bitbanger

3,468
01-25-2011, 05:48 PM #54
You can measure after the lift pump and on the return line from the injectors.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
01-25-2011, 05:48 PM #54

You can measure after the lift pump and on the return line from the injectors.


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

muuris
OM605

318
01-26-2011, 02:04 PM #55
(01-25-2011, 03:52 PM)casioqv Since I'm going to try for a single sensor system, I expect I'll need a non-linear calibration table to get accurate data at low flowrates.

Just curious, from what point of the fuel line are you going to measure with a single sensor?

(01-25-2011, 05:48 PM)winmutt You can measure after the lift pump and on the return line from the injectors.
You mean the return line to the tank from the filter, right? At least on my W124 fuel filter housing there is a bit of circulation from the filter to the return line directly, so measuring from the fuel line coming from the injectors wouldn't give accurate values.
This post was last modified: 01-26-2011, 02:06 PM by muuris.
muuris
01-26-2011, 02:04 PM #55

(01-25-2011, 03:52 PM)casioqv Since I'm going to try for a single sensor system, I expect I'll need a non-linear calibration table to get accurate data at low flowrates.

Just curious, from what point of the fuel line are you going to measure with a single sensor?

(01-25-2011, 05:48 PM)winmutt You can measure after the lift pump and on the return line from the injectors.
You mean the return line to the tank from the filter, right? At least on my W124 fuel filter housing there is a bit of circulation from the filter to the return line directly, so measuring from the fuel line coming from the injectors wouldn't give accurate values.

casioqv
OM602 Turbo

116
01-26-2011, 07:47 PM #56
(01-26-2011, 02:04 PM)muuris Just curious, from what point of the fuel line are you going to measure with a single sensor?

I'm planning to loop the return line (to the tank) back into the suction line (before the lift pump). The sensor will be installed in the suction line (from the tank) before the return line T's into it, so it will only measure actual fuel used.

Looping the return back into the suction line doesn't really cause any problems except you lose the ability for the engine to automatically bleed air out of the system (say after running out of fuel or replacing the fuel filter).
This post was last modified: 01-26-2011, 07:48 PM by casioqv.

-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)
casioqv
01-26-2011, 07:47 PM #56

(01-26-2011, 02:04 PM)muuris Just curious, from what point of the fuel line are you going to measure with a single sensor?

I'm planning to loop the return line (to the tank) back into the suction line (before the lift pump). The sensor will be installed in the suction line (from the tank) before the return line T's into it, so it will only measure actual fuel used.

Looping the return back into the suction line doesn't really cause any problems except you lose the ability for the engine to automatically bleed air out of the system (say after running out of fuel or replacing the fuel filter).


-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)

muuris
OM605

318
01-27-2011, 10:47 AM #57
Didn't thought of that as an option. As I live in a cold country, I like the circulation to keep the fuel tank a bit warmer.
muuris
01-27-2011, 10:47 AM #57

Didn't thought of that as an option. As I live in a cold country, I like the circulation to keep the fuel tank a bit warmer.

winmutt
bitbanger

3,468
01-27-2011, 10:55 AM #58
(01-26-2011, 07:47 PM)casioqv
(01-26-2011, 02:04 PM)muuris Just curious, from what point of the fuel line are you going to measure with a single sensor?

I'm planning to loop the return line (to the tank) back into the suction line (before the lift pump). The sensor will be installed in the suction line (from the tank) before the return line T's into it, so it will only measure actual fuel used.

Looping the return back into the suction line doesn't really cause any problems except you lose the ability for the engine to automatically bleed air out of the system (say after running out of fuel or replacing the fuel filter).
This is how the om314 is setup. Return loops back into feed line.



1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
01-27-2011, 10:55 AM #58

(01-26-2011, 07:47 PM)casioqv
(01-26-2011, 02:04 PM)muuris Just curious, from what point of the fuel line are you going to measure with a single sensor?

I'm planning to loop the return line (to the tank) back into the suction line (before the lift pump). The sensor will be installed in the suction line (from the tank) before the return line T's into it, so it will only measure actual fuel used.

Looping the return back into the suction line doesn't really cause any problems except you lose the ability for the engine to automatically bleed air out of the system (say after running out of fuel or replacing the fuel filter).
This is how the om314 is setup. Return loops back into feed line.



1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

ForcedInduction
Banned

3,628
01-27-2011, 05:18 PM #59
(01-26-2011, 07:47 PM)casioqv Looping the return back into the suction line doesn't really cause any problems except you lose the ability for the engine to automatically bleed air out of the system (say after running out of fuel or replacing the fuel filter).

You also lose the ability for the fuel to cool the pump. If you're going to loop I suggest installing a single pass tranny cooler or small oil cooler (4", common on 10-25hp air cooled gas engines).
ForcedInduction
01-27-2011, 05:18 PM #59

(01-26-2011, 07:47 PM)casioqv Looping the return back into the suction line doesn't really cause any problems except you lose the ability for the engine to automatically bleed air out of the system (say after running out of fuel or replacing the fuel filter).

You also lose the ability for the fuel to cool the pump. If you're going to loop I suggest installing a single pass tranny cooler or small oil cooler (4", common on 10-25hp air cooled gas engines).

casioqv
OM602 Turbo

116
01-27-2011, 10:18 PM #60
(01-27-2011, 05:18 PM)ForcedInduction You also lose the ability for the fuel to cool the pump. If you're going to loop I suggest installing a single pass tranny cooler or small oil cooler (4", common on 10-25hp air cooled gas engines).

I've been thinking about this a bit- it would be easy to add, but I'm fairly certain that it won't present any problem in practice. The WVO guys loop back their systems to help keep the injected fuel warmer, but even that alone isn't sufficient to get the fuel hot enough for their purposes. You also have the fuel being totally replaced frequently, given the small recirculating volume.

I kinda doubt the inline type pumps are cooled much by fuel anyway- they're already bolted directly to the block, and full of engine oil. If this were an issue it would be a bigger one for engines with rotary-type injection pumps.

Although I'm actually planning to install this first on my Volvo diesel, which does have a rotary pump.

I'll keep an eye on the injector pump temp with my infrared thermometer but I can't imagine it will be an issue.
This post was last modified: 01-27-2011, 10:19 PM by casioqv.

-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)
casioqv
01-27-2011, 10:18 PM #60

(01-27-2011, 05:18 PM)ForcedInduction You also lose the ability for the fuel to cool the pump. If you're going to loop I suggest installing a single pass tranny cooler or small oil cooler (4", common on 10-25hp air cooled gas engines).

I've been thinking about this a bit- it would be easy to add, but I'm fairly certain that it won't present any problem in practice. The WVO guys loop back their systems to help keep the injected fuel warmer, but even that alone isn't sufficient to get the fuel hot enough for their purposes. You also have the fuel being totally replaced frequently, given the small recirculating volume.

I kinda doubt the inline type pumps are cooled much by fuel anyway- they're already bolted directly to the block, and full of engine oil. If this were an issue it would be a bigger one for engines with rotary-type injection pumps.

Although I'm actually planning to install this first on my Volvo diesel, which does have a rotary pump.

I'll keep an eye on the injector pump temp with my infrared thermometer but I can't imagine it will be an issue.


-Tyler
1984 Volvo 760GLE Turbo Diesel D24T/M46
1986 Isuzu Trooper Turbo Diesel
No mercedes (for now)

Spaceraver
K26-2

40
02-16-2011, 09:02 PM #61
Ole, I was suggested on the arduino channel on freenode that you should add some IF debug with a ground pin.
And could you comment some more on your code? Danish is fine, i'm translating as I go over it.

I wouldn't mind getting an STD..Tongue
Spaceraver
02-16-2011, 09:02 PM #61

Ole, I was suggested on the arduino channel on freenode that you should add some IF debug with a ground pin.
And could you comment some more on your code? Danish is fine, i'm translating as I go over it.


I wouldn't mind getting an STD..Tongue

olefejer
GT2559V

197
07-09-2011, 02:19 PM #62
Just mounted a new LCD in my car, i wisch it was possible to get it in same color as the radio and so on
Attached Files
Image(s)
       

1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)
olefejer
07-09-2011, 02:19 PM #62

Just mounted a new LCD in my car, i wisch it was possible to get it in same color as the radio and so on

Attached Files
Image(s)
       

1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)

dieselboy
Rotatin 5500 times a minute

680
07-09-2011, 04:29 PM #63
Sweet!

-Jesse

80 300sd hy35, front mount intercooler, w115 intake, rack limiter removed, Alda removed, full load turned up, boost, ebp, trans, pyro, egr delete, 3.5" exhaust, e-fan, 16x8 rims with, 245/50 tires, lowered, bilstien 5100's, 12" front brakes, 2.65:1 diff.
97 f250 psd 4x4, crawler
70 f250 390
83 Volvo 242, lots of mods
66 Volvo amazon

10 mistsubishi fuso service truck.
dieselboy
07-09-2011, 04:29 PM #63

Sweet!


-Jesse

80 300sd hy35, front mount intercooler, w115 intake, rack limiter removed, Alda removed, full load turned up, boost, ebp, trans, pyro, egr delete, 3.5" exhaust, e-fan, 16x8 rims with, 245/50 tires, lowered, bilstien 5100's, 12" front brakes, 2.65:1 diff.
97 f250 psd 4x4, crawler
70 f250 390
83 Volvo 242, lots of mods
66 Volvo amazon

10 mistsubishi fuso service truck.

randomdude
GT2256V

106
07-11-2011, 06:46 PM #64
VERY cool!

casioqv- you said "I'm very excited about this- first I'll collect some hard data on how numerous variables affect fuel economy in these old diesel cars to see what I can easily change to improve it."

did you ever make any progress with that? i'm looking for some places to bump up my mpg.

cars? what cars? WHERE???
randomdude
07-11-2011, 06:46 PM #64

VERY cool!

casioqv- you said "I'm very excited about this- first I'll collect some hard data on how numerous variables affect fuel economy in these old diesel cars to see what I can easily change to improve it."

did you ever make any progress with that? i'm looking for some places to bump up my mpg.


cars? what cars? WHERE???

winmutt
bitbanger

3,468
07-18-2011, 09:15 AM #65
Very nice install. With any luck I will have mine up in the next 2 months, been waiting for new turbo/manifolds to install it.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
07-18-2011, 09:15 AM #65

Very nice install. With any luck I will have mine up in the next 2 months, been waiting for new turbo/manifolds to install it.


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

jeemu
"some people do, some people talk."

457
07-18-2011, 04:55 PM #66
Is that too low for real time watch?

OM605 600hp diesel drag car build with BMW E30 chassis
jeemu
07-18-2011, 04:55 PM #66

Is that too low for real time watch?


OM605 600hp diesel drag car build with BMW E30 chassis

olefejer
GT2559V

197
07-27-2011, 01:30 PM #67
(07-18-2011, 04:55 PM)jeemu Is that too low for real time watch?

Yes it is to low, you cant look at it while driving, but anyway cool to have all the info in one display, think i put a buzzer on it as an alarm. and set a max for all parameters.

1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)
olefejer
07-27-2011, 01:30 PM #67

(07-18-2011, 04:55 PM)jeemu Is that too low for real time watch?

Yes it is to low, you cant look at it while driving, but anyway cool to have all the info in one display, think i put a buzzer on it as an alarm. and set a max for all parameters.


1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)

iheartboost
Holset

422
07-28-2011, 07:42 AM #68
this is awesome. im very impressed i would have no idea where to even start if i wanted to make my own gauge.
iheartboost
07-28-2011, 07:42 AM #68

this is awesome. im very impressed i would have no idea where to even start if i wanted to make my own gauge.

oldbeaver
Turbo

20
09-04-2013, 08:27 PM #69
(01-03-2011, 03:02 PM)olefejer Just got my homemade Boost and RPM meter to work.
I made it because i Want a very small meter to fit in the sunglasses compartment in the R129.

Here is a list of what part i used

Audrino Board
http://www.arduino.cc
http://cgi.ebay.de/ws/eBayISAPI.dll?View...2847wt_905

LCD (importent is that it is serial, only takes 2 pin on the board.)
http://cgi.ebay.de/ws/eBayISAPI.dll?View...K:MEWNX:IT

2 X "3 Bar boost/MAP sensor, Boost Pressure Map Sensor Apexi AVC-R HKS EVC-S Greddy
"
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?V...1701wt_905

Turbo RPM (HE351VE it need to have a sensor 2 wire)
The 2 Wire from the Turbo RPM sensor is attatched to Ground and the other to a digital input directly.
Then i messure the time it takes before the turbo has rotatet 100 times. by 90,000 RPM it took 66 mS. i the calculate the RPM 6000,000 / 66 = 90,000

Boost
The MapSensor is connectet to 2 X analog input 0.5 V is -1 bar, 4,5 V is 3 bar = 45 PSI.
And it also saves MAX EGP and Boost.

Motor RPM
Also working, same as Turbo RPM

I now also have a Fuel-flow sensor to give me instant MPG

Next project is to have one of the PWM output on the board control my vacuum valve witch is controlling the turbo.

Very nice, congrats! Interested in yr results, benefits of the kit. I need a instant mpg gauge, have you succeed on that?

Oldbeaver
oldbeaver
09-04-2013, 08:27 PM #69

(01-03-2011, 03:02 PM)olefejer Just got my homemade Boost and RPM meter to work.
I made it because i Want a very small meter to fit in the sunglasses compartment in the R129.

Here is a list of what part i used

Audrino Board
http://www.arduino.cc
http://cgi.ebay.de/ws/eBayISAPI.dll?View...2847wt_905

LCD (importent is that it is serial, only takes 2 pin on the board.)
http://cgi.ebay.de/ws/eBayISAPI.dll?View...K:MEWNX:IT

2 X "3 Bar boost/MAP sensor, Boost Pressure Map Sensor Apexi AVC-R HKS EVC-S Greddy
"
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?V...1701wt_905

Turbo RPM (HE351VE it need to have a sensor 2 wire)
The 2 Wire from the Turbo RPM sensor is attatched to Ground and the other to a digital input directly.
Then i messure the time it takes before the turbo has rotatet 100 times. by 90,000 RPM it took 66 mS. i the calculate the RPM 6000,000 / 66 = 90,000

Boost
The MapSensor is connectet to 2 X analog input 0.5 V is -1 bar, 4,5 V is 3 bar = 45 PSI.
And it also saves MAX EGP and Boost.

Motor RPM
Also working, same as Turbo RPM

I now also have a Fuel-flow sensor to give me instant MPG

Next project is to have one of the PWM output on the board control my vacuum valve witch is controlling the turbo.

Very nice, congrats! Interested in yr results, benefits of the kit. I need a instant mpg gauge, have you succeed on that?

Oldbeaver

olefejer
GT2559V

197
09-07-2013, 04:05 AM #70
(09-04-2013, 08:27 PM)oldbeaver
(01-03-2011, 03:02 PM)olefejer Just got my homemade Boost and RPM meter to work.
I made it because i Want a very small meter to fit in the sunglasses compartment in the R129.

Here is a list of what part i used

Audrino Board
http://www.arduino.cc
http://cgi.ebay.de/ws/eBayISAPI.dll?View...2847wt_905

LCD (importent is that it is serial, only takes 2 pin on the board.)
http://cgi.ebay.de/ws/eBayISAPI.dll?View...K:MEWNX:IT

2 X "3 Bar boost/MAP sensor, Boost Pressure Map Sensor Apexi AVC-R HKS EVC-S Greddy
"
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?V...1701wt_905

Turbo RPM (HE351VE it need to have a sensor 2 wire)
The 2 Wire from the Turbo RPM sensor is attatched to Ground and the other to a digital input directly.
Then i messure the time it takes before the turbo has rotatet 100 times. by 90,000 RPM it took 66 mS. i the calculate the RPM 6000,000 / 66 = 90,000

Boost
The MapSensor is connectet to 2 X analog input 0.5 V is -1 bar, 4,5 V is 3 bar = 45 PSI.
And it also saves MAX EGP and Boost.

Motor RPM
Also working, same as Turbo RPM

I now also have a Fuel-flow sensor to give me instant MPG

Next project is to have one of the PWM output on the board control my vacuum valve witch is controlling the turbo.

Very nice, congrats! Interested in yr results, benefits of the kit. I need a instant mpg gauge, have you succeed on that?

Oldbeaver

Hi the mpg gauge is crap, and not in the car anymore, as it is simply not accurate enough , you have to measure forward flow and return flow and subtract those to get Gallons / hour.
The only way.
I think to measure fuel usage on an old diesel, is to read rack position, and know fuel at that position, at that RPM. then it would be accuret.
On an CDI it is more easy you read the ontime on the injector and the rail pressure, then it can be calculatet from there.
At least thats how i think they do it.
but meassure width a cheap flow meassure device, not working

1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)
olefejer
09-07-2013, 04:05 AM #70

(09-04-2013, 08:27 PM)oldbeaver
(01-03-2011, 03:02 PM)olefejer Just got my homemade Boost and RPM meter to work.
I made it because i Want a very small meter to fit in the sunglasses compartment in the R129.

Here is a list of what part i used

Audrino Board
http://www.arduino.cc
http://cgi.ebay.de/ws/eBayISAPI.dll?View...2847wt_905

LCD (importent is that it is serial, only takes 2 pin on the board.)
http://cgi.ebay.de/ws/eBayISAPI.dll?View...K:MEWNX:IT

2 X "3 Bar boost/MAP sensor, Boost Pressure Map Sensor Apexi AVC-R HKS EVC-S Greddy
"
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?V...1701wt_905

Turbo RPM (HE351VE it need to have a sensor 2 wire)
The 2 Wire from the Turbo RPM sensor is attatched to Ground and the other to a digital input directly.
Then i messure the time it takes before the turbo has rotatet 100 times. by 90,000 RPM it took 66 mS. i the calculate the RPM 6000,000 / 66 = 90,000

Boost
The MapSensor is connectet to 2 X analog input 0.5 V is -1 bar, 4,5 V is 3 bar = 45 PSI.
And it also saves MAX EGP and Boost.

Motor RPM
Also working, same as Turbo RPM

I now also have a Fuel-flow sensor to give me instant MPG

Next project is to have one of the PWM output on the board control my vacuum valve witch is controlling the turbo.

Very nice, congrats! Interested in yr results, benefits of the kit. I need a instant mpg gauge, have you succeed on that?

Oldbeaver

Hi the mpg gauge is crap, and not in the car anymore, as it is simply not accurate enough , you have to measure forward flow and return flow and subtract those to get Gallons / hour.
The only way.
I think to measure fuel usage on an old diesel, is to read rack position, and know fuel at that position, at that RPM. then it would be accuret.
On an CDI it is more easy you read the ontime on the injector and the rail pressure, then it can be calculatet from there.
At least thats how i think they do it.
but meassure width a cheap flow meassure device, not working


1996 MB SL320 Now OM606 7 mm pump elements (myna), KKD manifold, HE341VE, 3,5" downpipe, 3" exhaust, big IC, 722.6 gearbox controller, also controls (Turbo VNT, EGT, BOOST, EGP.)

Crack
Naturally-aspirated

17
09-08-2013, 08:03 AM #71
I've been watching the topic and think fantastic work done. Had had the same idea.
When monitoring intakes can do a good job. I do not know the car well, but if you can use the output of a sensor ABS, can the diameter of the tire and wheel to measure the displacement. With two flow sensors, one for power and one for the return able to measure consumption. Having consumption and displacement can calculate Liters / miles. The use of the ABS sensor, Hall sensor gives more toothed gear incredibly precise result.
With all the 3 sensors can do very good things is a matter of programming;
In my case I draw near to do Liters / KM, Instant consumption.
If you want to go beyond the sky is the limit if you use a level sensor in the fuel tank may make estimates and averages by supply.
Crack
09-08-2013, 08:03 AM #71

I've been watching the topic and think fantastic work done. Had had the same idea.
When monitoring intakes can do a good job. I do not know the car well, but if you can use the output of a sensor ABS, can the diameter of the tire and wheel to measure the displacement. With two flow sensors, one for power and one for the return able to measure consumption. Having consumption and displacement can calculate Liters / miles. The use of the ABS sensor, Hall sensor gives more toothed gear incredibly precise result.
With all the 3 sensors can do very good things is a matter of programming;
In my case I draw near to do Liters / KM, Instant consumption.
If you want to go beyond the sky is the limit if you use a level sensor in the fuel tank may make estimates and averages by supply.

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