3SGTE High Power Builds Strange Sprocket Gear

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3SGTE High Power Builds Strange Sprocket Gear

Post by Voivod »

I've noticed that so many so called High Power Builds using aftermarket or some kind of bicycle sprocket gear attached to crankshaft pulley.. :confused1: What's is all about??? :confused1:


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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by thebestMR2 »

Surprising, coming from someone who knows "everything" :shocked: ,
It's a trigger wheel, normally used in conjunction with a Hall effect sensor :)
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by Voivod »

thebestMR2 wrote: 11/06/21 8:01 Surprising, coming from someone who knows "everything" :shocked: ,
It's a trigger wheel, normally used in conjunction with a Hall effect sensor :)
I've never claimed that I know everything :laughing I know is a crank sensor. I was more surprised that why not use stock sensor with Caldina oil pump and T.belt sprocket .Also 5sfe comes with crankshaft sensor you could do that at least 15 years ago. :laughing
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by thebestMR2 »

Voivod wrote: 11/06/21 9:59 I've never claimed that I know everything
That's not the way your posts come across ;)

If you knew what is and what it's used for then why ask the question in the first place :confused1:
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by Voivod »

thebestMR2 wrote: 11/06/21 10:21
Voivod wrote: 11/06/21 9:59 I've never claimed that I know everything
That's not the way your posts come across ;)

If you knew what is and what it's used for then why ask the question in the first place :confused1:
Sorry I've put the question wrong :notworthy: :D But still I'm quite surprised why not use stock crankshaft sensor and T.belt sprocket? The only thing comes to mind is that maybe some aftermarket ECU's doesn't support that or something :confused1:
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by SonicSW20 »

The larger trigger wheel with more teeth gives more accurate positional information.
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by jimi »

Also a Hall effect sensor is digital and a VR sensor is analog, i.e. square wave vs sine wave
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by Voivod »

SonicSW20 wrote: 11/06/21 14:45 The larger trigger wheel with more teeth gives more accurate positional information.
jimi wrote: 11/06/21 14:58 Also a Hall effect sensor is digital and a VR sensor is analog, i.e. square wave vs sine wave
OK that's very interesting.:th:

I've looked at Haltech site regarding Hall Effect or Reluctor?

So their conclusion was.. :D

Conclusion

Hall effect sensors are easy to mount and easy to configure in the ECU software, however they don’t like getting hot and depending on the model may “filter” or miss teeth that you really want to detect.

Reluctor sensors don’t mind the heat and are extremely reliable, however they require time in setting up the trigger voltages vs. engine RPM and require a very accurate sensor mount in order to provide a very small gap between the sensor and trigger tooth to ensure trouble free operation.


p.s Regarding the Reluctor sensors last part it's already sorted by the manufacturer..so I guess it's harder to set up when linked to aftermarket ECU? :D
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by jimi »

Horses for courses.
Both have their good/bad points, which one you choose depends on what kind of signal you want and what you are doing with the signal. I've worked with both types of sensors (and a few other types) for many years, IMPO neither is "better" than the other, each has its uses.
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by SonicSW20 »

Voivod wrote: 11/06/21 17:08 p.s Regarding the Reluctor sensors last part it's already sorted by the manufacturer..so I guess it's harder to set up when linked to aftermarket ECU? :D
Most standalone ECU's can use either.
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by Voivod »

SonicSW20 wrote: 11/06/21 17:59
Voivod wrote: 11/06/21 17:08 p.s Regarding the Reluctor sensors last part it's already sorted by the manufacturer..so I guess it's harder to set up when linked to aftermarket ECU? :D
Most standalone ECU's can use either.
Yeah I know :th: and that's surprised me.
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by Voivod »

jimi wrote: 11/06/21 17:29 Horses for courses.
Both have their good/bad points, which one you choose depends on what kind of signal you want and what you are doing with the signal. I've worked with both types of sensors (and a few other types) for many years, IMPO neither is "better" than the other, each has its uses.
I'm not asked about sensors compatibility or which one is better or a matter of preferences .Just the reason why not use the stock one :D Although I've seen couple of builds where stock crankshaft sensor were used...at least in pictures.
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by jimi »

The stock gen4/5 sensor is VR (as is the 5S-GE sensor) which isn't the easiest thing to use if what you want is a digital signal.
As I said the sensor choice depends on what type of signal you want.
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Re: 3SGTE High Power Builds Strange Sprocket Gear

Post by SonicSW20 »

Voivod wrote: 13/06/21 21:03 I'm not asked about sensors compatibility or which one is better or a matter of preferences .Just the reason why not use the stock one :D Although I've seen couple of builds where stock crankshaft sensor were used...at least in pictures.
You could use a stock one if you wanted to. A larger one with more teeth (a 60-2 for example) will provide more accurate timing information because you have more pulses per rotation. Most standalone ECU's can be configured to work with various trigger setups. If you're going to the trouble of retrofitting a crank trigger you might as well go for the more accurate option.
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