View Full Version : Blitz Supercharger Wiring Question
Good day. I have a 2007 JDM Vitz RS (Manual)
I recently purchased a used Blitz Supercharger Kit for the 1nzfe.
Besides the supercharger I only received the 8 wire Blitz Fuel Controller.
I am going to use an Autometer RPM Activation Module to activate the supercharger clutch at 3000rpm.
This is what I gathered so far
https://onedrive.live.com/redir?resid=E08EC750DD04D8D1!40311&authkey=!AGQnzcBhNsS95wI&v=3&ithint=photo%2cbmp
Question(s):
1. The green wire on the fuel controller is an input to activate the fuel controller?
2. If yes to question 1, what type of input; 12V or ground?
3. There is no MAF connection on the 8 wire fuel controller.
4. Does the wiring seem correct so far?
Here are some pics of the Blitz Supercharger install
https://onedrive.live.com/redir?resid=E08EC750DD04D8D1!40317&authkey=!AJPabmRsteg6S3Y&ithint=folder%2c
From CTScott Blitz Suercharger Install post I learnt the green wire from the fuel controller is a switched ground.
This is how I will be connecting the 8 wire Blitz Fuel Controller.
http://1drv.ms/1MwIopf
My only concern is if the fuel controller will have an adequate fuel map with the rpm activation instead of the usual throttle activation.
CTScott
07-28-2015, 09:24 PM
From CTScott Blitz Suercharger Install post I learnt the green wire from the fuel controller is a switched ground.
This is how I will be connecting the 8 wire Blitz Fuel Controller.
http://1drv.ms/1MwIopf
My only concern is if the fuel controller will have an adequate fuel map with the rpm activation instead of the usual throttle activation.
The Blitz Fuel controller only adds fuel relative to a completely stock setup otherwise, so if you have an intake and/or improved exhaust system you will run lean with just the Blitz controller. RPM activation should actually be OK, but the question is if the fuel adding of the Blitz is sufficient for your setup.
My only modifications are a Fidanza Flywheel and the Air Intake Filter. Do you recommend I use the 1zz injectors?
Thanks
CTScott
07-29-2015, 06:36 AM
My only modifications are a Fidanza Flywheel and the Air Intake Filter. Do you recommend I use the 1zz injectors?
Thanks
The larger injectors would help for compensating for the intake. You will sit a bit rich at low RPM with them though.
When the S/C is activated via rpm it is possible to control the boost delivery of the S/C using the throttle. So if the above design is implemented once the desired rpm is reached and the S/C activates the Blitz Fuel Controller will increase fuel delivery although the engine may still be in vacuum. Therefore I plan to use an adjustable (NO) boost switch set at 1 psi to indicate to the Blitz controller to increase fuel.
I am hoping to get the rpm and pressure switch by next week to test this new design.
http://1drv.ms/1VS68r1
CTScott
07-31-2015, 11:06 PM
When the S/C is activated via rpm it is possible to control the boost delivery of the S/C using the throttle. So if the above design is implemented once the desired rpm is reached and the S/C activates the Blitz Fuel Controller will increase fuel delivery although the engine may still be in vacuum. Therefore I plan to use an adjustable (NO) boost switch set at 1 psi to indicate to the Blitz controller to increase fuel.
I am hoping to get the rpm and pressure switch by next week to test this new design.
http://1drv.ms/1VS68r1
If you wire the Blitz throttle controller normally (where it sees the throttle position and uses that for fuel control) and then wire the SC clutch to activate based on RPM, it should still work fine as far as increasing fuel goes.
I didn't get the throttle controller when the S/C kit was purchased. I asked Cranky if he could make one for me but just want to experiment and document other options incase there is someone out there in the same situation as myself.
CrankyOldMan
08-01-2015, 02:35 AM
I didn't get the throttle controller when the S/C kit was purchased. I asked Cranky if he could make one for me but just want to experiment and document other options incase there is someone out there in the same situation as myself.
I can make the selector switch, but I don't know what the internals of the throttle controller box are. I'll dig through my spare parts box tomorrow and see what I have.
Cranky I didn't realize that the throttle selector switch and throttle control box were two different things. Therefore I would need both if I want the S/C to behave as intended by Blitz?
CTScott
08-01-2015, 08:03 AM
I can make the selector switch, but I don't know what the internals of the throttle controller box are. I'll dig through my spare parts box tomorrow and see what I have.
The throttle controller has a microcontroller that samples the TPS for the throttle position, reads the selector switch via and ADC and measures the pulse width of the injectors and increases the pulse width where necessary.
CrankyOldMan
08-01-2015, 09:27 AM
The throttle controller has a microcontroller that samples the TPS for the throttle position, reads the selector switch via and ADC and measures the pulse width of the injectors and increases the pulse width where necessary.
Oh, I meant the smaller box that the switch plugs into, not the piggyback fuel controller. I think the switch box is just a voltage comparator, isn't it?
CTScott
08-01-2015, 10:50 AM
Oh, I meant the smaller box that the switch plugs into, not the piggyback fuel controller. I think the switch box is just a voltage comparator, isn't it?
I popped open the little box once and it contained an 8 Pin IC, a transistor and a bunch of caps and resistors.
The IC had its marking sanded off, but it did appear to be a comparator, based on how the switch wiring came to it.
The setup from post #6 works sufficient I believe.
My AEM UEGO Air/Fuel Ratio Gauge reads 11 to low 12's in boost when the S/C activates.
Issue: The jegs rpm activation switch seems to be faulty or maybe I wired it incorrectly. I wired it to the IGF wire at the ecu. Is this correct?
CTScott
08-10-2015, 07:47 PM
The setup from post #6 works sufficient I believe.
My AEM UEGO Air/Fuel Ratio Gauge reads 11 to low 12's in boost when the S/C activates.
Issue: The jegs rpm activation switch seems to be faulty or maybe I wired it incorrectly. I wired it to the IGF wire at the ecu. Is this correct?
IGF is a feedback signal from the coils. I would use the TACH signal instead, which is a standard tach signal. The IGF signal is held high and drops for a very short time when the coil fires.
The tach signal is the light green wire by the obd port?
CTScott
08-11-2015, 06:38 AM
The tach signal is the light green wire by the obd port?
The color can vary depending on the year, but it is the wire in this position:
http://www.yarisworld.com/forums/attachment.php?attachmentid=14361&stc=1&d=1228843112
thanks CTScott. will confirm once verified that the setup works.
Connect the rpm signal to the beige wire at the obd port. At idle (600rpm) the rpm switch display fluctuates between 1700-2600.
The rpm switch is most likely faulty. I contacted the supplier and awaiting a response. I will connect an autometer rpm activated module at 3000rpm and test hopefully tom.
Installed the autometer rpm activation module today and the system works flawlessly. The pressure switch activates the fuel controller as soon as boost is detected. No ping is heard. Afr on aem gauge reads 11's to low 12's in boost.
CrankyOldMan
08-12-2015, 06:59 PM
Awesome! Congrats on getting it sorted out.
Sent from my XT1031 using Tapatalk
Would have liked for the activation point to be lower than 3000rpm. Jegs is replacing the non functioning unit. Once I get the replacement ill set the clutch activation to 2000-2500 rpm.
With 92octane fuel, 1zz injectors and water meth spraying after the s/c I am still experiencing audible ping at partial throttle and wot even thou my aem afr gauge reads 10.5. My other performance mods are a fidanza flywheel and a k&n filter in the stock airbox.
Any suggestions? I am going to try some 95octane fuel but need to syphon out the 92 fuel tom.
Forgot to mention I am using Denso double iridium tipped plugs with the gap closed in a bit heat range 20 (ngk 6). Was thinking to use heat range 7's. What you guys suggest?
CTScott
08-25-2015, 08:42 PM
Forgot to mention I am using Denso double iridium tipped plugs with the gap closed in a bit heat range 20 (ngk 6). Was thinking to use heat range 7's. What you guys suggest?
NGK BKR7EIX is recommended with the Blitz.
Thanks CTScott I will pick up a set tom morning. The blitz S/C kit is exactly the little extra power this car needed. It would have been awesome if the yaris had this power from the factory.
Installed a set of the ngk bkr7eix and I didn't hear any ping at all. Afr is 10.5 @ wot which mite be too rich??
10.5:1 afr too rich I'm running 15psi and 11.2-11.5 wot.
Since you just confirmed that its too rich I have 3 options.
1. Install 1zz throttle body,
2. Reinstall 1nzfe injectors,
3. Use 100% water instead of 50/50 water/meth mixture.
What you guys think will be the best setup?
Althou I am using ngk7 plugs and 255cc 1zz injectors along with an aem water meth injection kit I am still experiencing audible detonation.
Any suggestions or recommendations?
My only mod is a fidanza flywheel and using an autometer rpm switch to activate the supercharger at 3k rpm.
vBulletin® v3.8.11, Copyright ©2000-2025, vBulletin Solutions Inc.