Just ordered a sprintbooster...

zmanelite · 08-29-2015, 10:12 AM

So from what I read
This increases the voltage so you have almost like a quick turn throttle on a motorcycle
I read you have dead pedal at the end as 100% of the voltage was applied at 70% of the pedal travel...hummm

Does this thing make that much of a difference?

jcosta79 · 08-29-2015, 10:36 AM

Quote:

Originally Posted by zmanelite

So from what I read
This increases the voltage so you have almost like a quick turn throttle on a motorcycle
I read you have dead pedal at the end as 100% of the voltage was applied at 70% of the pedal travel...hummm

Does this thing make that much of a difference?

I know that on our cars, even if you floor the throttle you will have a delay before the computer allows the throttle blades to open to 100%. From what I understand, this product eliminates or significantly reduces that delay. I will give a full review once I install mine next week.

jm1fd · 08-31-2015, 05:52 PM

Quote:

Originally Posted by jcosta79

I know that on our cars, even if you floor the throttle you will have a delay before the computer allows the throttle blades to open to 100%.

On our cars, the "throttle blades" in the throttle bodies are 100% open all the time unless traction control needs to cut engine power, or vacuum needs to be generated for the brake booster. The pedal causes the computer to alter intake valve duration and lift via the VVEL stepper motors on each cylinder head.

This doo-hickey alters the voltage output curve of the throttle pedal. That's all it can do. It simply makes 10% pedal travel look electrically like 20% pedal travel to the ECU. Any delays built into the ECU's programming are still there.

Remember Toyota's sudden unintended acceleration debacle?
What happens if this doo-hickey goes into a fault condition and sends a 100% throttle signal to the ECU? It is plugged into all the right wires to be able to do so.

jcosta79 · 08-31-2015, 06:31 PM

Quote:

Originally Posted by jm1fd

On our cars, the "throttle blades" in the throttle bodies are 100% open all the time unless traction control needs to cut engine power, or vacuum needs to be generated for the brake booster. The pedal causes the computer to alter intake valve duration and lift via the VVEL stepper motors on each cylinder head.

This doo-hickey alters the voltage output curve of the throttle pedal. That's all it can do. It simply makes 10% pedal travel look electrically like 20% pedal travel to the ECU. Any delays built into the ECU's programming are still there.

Remember Toyota's sudden unintended acceleration debacle?
What happens if this doo-hickey goes into a fault condition and sends a 100% throttle signal to the ECU? It is plugged into all the right wires to be able to do so.

Well, I can tell a difference even with 100% throttle applied. Not sure how that's possible since I understand how it works and 100% throttle should still be 100% throttle. But from low RPM's I can feel a difference when applying full throttle. Can't really explain why, but I'm not complaining.

And if the doo hickey malfunctions and the engine goes full throttle, I'll just pop it in neutral.

08-29-2015, 10:12 AM	#1 (permalink)
zmanelite Track Member Join Date: Nov 2013 Location: Anaheim Posts: 753 Drives: 370 Z Nismo Rep Power: 38	So from what I read This increases the voltage so you have almost like a quick turn throttle on a motorcycle I read you have dead pedal at the end as 100% of the voltage was applied at 70% of the pedal travel...hummm Does this thing make that much of a difference? __________________ Instagram @zmanscm

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