vacuum sensor ?

K

korke

Registered
Hy.

My first post and my first suzuki.

Took it a little apart and i can't understand why i need the vacum sensor ?
Yes. i know if to unconnect it the engine can't run normaly.

But why it's needfull and can i run some how without it ? I'm thinking to go on race ecu any way....would the sensor be needful ? I'm asking because i wan't to throw away all things what are not usefull. One of this things is vacum system.

Try'd to search in forum ..but didn't found nothing.

Sry for bad english.
 
Last edited:
Welcome!

:welcome:

I would just leave it on.
If it was off I don't know how you would defeat it, so it would run right.
 
the vacuum sensor works in unison with the throttle position sensor (TPS) to determine how much load is on the motor.. if you get full reference voltage (around 5v) from the TPS the computer knows you have the throttle wide open.. It then compares the vacuum voltage to know if the engine is under extreme load (low vacuum) or at higher RPM and not loaded very hard (hi vacuum).. When it sees the hign load and low vacuum, it dumps fuel into the motor at a higer rate.. There are other parameters involved but that is the basic map process..

Wide open throttle with high vacuum indicates high RPM with low load and this equals leaner fuel mixture.. You can have High throttle setting, high vacuum and high engine load, this tends to push a bit more fuel into the motor..

make sense?
 
Oky...now i understand that why i need and what for it is.

But if now i'm going for race ecu where i set up the map my self . Then do i need the vacum system still ? Or is this question ment for race ecu seller.
Thinking to use ignijet ecu.


Mr Bogus said:
the vacuum sensor works in unison with the throttle position sensor (TPS) to determine how much load is on the motor.. if you get full reference voltage (around 5v) from the TPS the computer knows you have the throttle wide open.. It then compares the vacuum voltage to know if the engine is under extreme load (low vacuum) or at higher RPM and not loaded very hard (hi vacuum).. When it sees the hign load and low vacuum, it dumps fuel into the motor at a higer rate.. There are other parameters involved but that is the basic map process..

Wide open throttle with high vacuum indicates high RPM with low load and this equals leaner fuel mixture.. You can have High throttle setting, high vacuum and high engine load, this tends to push a bit more fuel into the motor..

make sense?
Click to expand...
 
it will still use the sensors..all track bikes use sensors and some have alot more sensors then ours do stock
 
I have no idea how the ecu is set up but I would be surprised if they did not utilize the MAP sensor (Vacuum sensor).. Talk to the tech guys that build the thing..
 
Im thinking its probably a BAZZAZ randy...and I know they use the sensors...Im waiting to see his answer too...alot of those aftermarket units require the use of an o2 sensor and some even require a 5 wire o2 sensor
 
Last edited:
ok I have been watchin this thread for 1/2 hour now..I think Korke feel asleep or something...LOL
 
do you mean bazzaz ecu ? .....No i was thinking ignijet.

djsin said:
Im thinking its probably a BAZZAZ randy...and I know they use the sensors...Im waiting to see his answer too...alot of those aftermarket units require the use of an o2 sensor and some even require a 5 wire o2 sensor
Click to expand...
 
heres what I can find
IgniTech


The unit is programmable through PC. Adjustment software IGNIJET MAX POWER.EXE for PC is a part of supply; you may choose required settings of advance, fuel map and peripheral functions. Older version of the unit used IGNIJET04.EXE and IGNIJET02.EXEsettings software.
The unit is currently produced for some particular motorbikes used in road motorbike competitions (DUCATI 996, GSX-R600, GSX-R750, GSX-R1000, GSX-R1300, TL1000, ZX12R, ZX6RR, CBR600F, CBR900RR, CBR600RR, VTR1000, APRILIA RSV MILLE, R6, R1). Different sensor system can be implemented in the unit software on request.
Ignition unit includes the feature of adjustable curve of advance as a function of rpm. There are 10 revolution - advance couples of adjustable values. Interpolation of the ignition between these values is linear.
Fuel part of the unit includes adjustable 100-point fuel maps separate for inner and outer cylinders and other adjustment features.
Racing utilities: Two-level adjustable limiter. Adjustable gear shift control signals reaching and exceeding optimum gear revolution. Adjustable clutch master switches off the ignition during gear shifting. The unit further contains N2O dosage controller. Adjustable servo controller can be used for exhaust throttle or induction tube length control depending on the engine revolution.
The unit is made as TYCO connector version (the same as older IGNIJET 02). Assembly to a particular bike means either replacement of connectors or adequate reducing bundle. For selected motorbike types (so far GSX-R, TL1000, ZX12R, ZX6RR, CBR600RR, R1, R6) the unit is produced with an original connector.
There are two versions of the unit - full version and limited one. The limited version does not include racing utilities and revolution limiter cannot be adjusted higher than the value of motorbike series.
The unit does not include immobiliser.


you neeed all of your sensors
it uses
*Crankshaft position sensor CMPS.
*Throttle position sensor TPS.
*Induction air pressure sensor IAPS
*Exhaust servo position sensor STPS (Gen 1 hayabusa doesnt have one not sure about gen 2)
*Air temperature sensor ATS
*FALL SENSOR tip over sensor
*Induction coils IC 1, IC 2, IC 3, IC 4.
*Main injectors INJ 1, INJ 2, INJ 3, INJ 4.
*Secondary injectors INJ1B, INJ2B, INJ3B, INJ4B
*Intake servo position sensor STPS2.
*GEAR POSITION SENSOR
 
Because the ignijet ecu has nitro in put and when i hit the nitro botton and fire 100hp+ nitro, it will change the angel of ignition and has progresiv system for nitro. And i know how to use it :)
The power commander ignition modul can't even change so much angel that i need :)

I wan't to put two nitro systems ...first one hit's 60hp to 80 hp without progresiv modul. And the 100hp shot will come with progresiv modul.

In engine to avaoid or take down little more the detonation risk i will use VP racing fuel c16.

Yes i will change the rod's, pistons, valve springs and camshafts.

The bike only point is dragracing :)


djsin said:
just a question but why dont you just reflash your stock ECU, it does all the same stuff as these aftermarket ones....
heres all the software for free and where you can buy the cable to program it with
any questions you can PM Smithabusa on here

http://busaecu.redirectme.net/

ECU Flashing

Hayabusa 32bit ECU Innovate Logworks Plugin

Instructions to install and setup FDT Flash programming software - ECU hacking
Click to expand...
 
djsin said:
heres what I can find
IgniTech


The unit is programmable through PC. Adjustment software IGNIJET MAX POWER.EXE for PC is a part of supply; you may choose required settings of advance, fuel map and peripheral functions. Older version of the unit used IGNIJET04.EXE and IGNIJET02.EXEsettings software.
The unit is currently produced for some particular motorbikes used in road motorbike competitions (DUCATI 996, GSX-R600, GSX-R750, GSX-R1000, GSX-R1300, TL1000, ZX12R, ZX6RR, CBR600F, CBR900RR, CBR600RR, VTR1000, APRILIA RSV MILLE, R6, R1). Different sensor system can be implemented in the unit software on request.
Ignition unit includes the feature of adjustable curve of advance as a function of rpm. There are 10 revolution - advance couples of adjustable values. Interpolation of the ignition between these values is linear.
Fuel part of the unit includes adjustable 100-point fuel maps separate for inner and outer cylinders and other adjustment features.
Racing utilities: Two-level adjustable limiter. Adjustable gear shift control signals reaching and exceeding optimum gear revolution. Adjustable clutch master switches off the ignition during gear shifting. The unit further contains N2O dosage controller. Adjustable servo controller can be used for exhaust throttle or induction tube length control depending on the engine revolution.
The unit is made as TYCO connector version (the same as older IGNIJET 02). Assembly to a particular bike means either replacement of connectors or adequate reducing bundle. For selected motorbike types (so far GSX-R, TL1000, ZX12R, ZX6RR, CBR600RR, R1, R6) the unit is produced with an original connector.
There are two versions of the unit - full version and limited one. The limited version does not include racing utilities and revolution limiter cannot be adjusted higher than the value of motorbike series.
The unit does not include immobiliser.


you neeed all of your sensors
it uses
*Crankshaft position sensor CMPS.
*Throttle position sensor TPS.
*Induction air pressure sensor IAPS
*Exhaust servo position sensor STPS (Gen 1 hayabusa doesnt have one not sure about gen 2)
*Air temperature sensor ATS
*FALL SENSOR tip over sensor
*Induction coils IC 1, IC 2, IC 3, IC 4.
*Main injectors INJ 1, INJ 2, INJ 3, INJ 4.
*Secondary injectors INJ1B, INJ2B, INJ3B, INJ4B
*Intake servo position sensor STPS2.
*GEAR POSITION SENSOR
Click to expand...

Good info. Just one typo, or maybe confusion. CMPS is the camshaft position sensor. Not crankshaft position. Crank is CKPS
 
When it will be ready then i will show you my blog with pictures and info :)

Just get's me little confuse...because it's my first suzuki. Before i rided with yamaha and most of time kawasaki. This bikes are in what i'm at home :) But now will make suzuki :)


Commuta_Busa said:
keep us posted how it all turns out. :beerchug:
Click to expand...
 
I think you shound be lloking at ECU reflash and a 80 Shot 2- stage wet N2o system, a lot user friendly and maybe u won't bow that engine on the first run.
 
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