Boost based on Duty cycle

s300 and SManager software questions & answers
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mjalaly
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Joined: Tue Oct 28, 2014 1:34 pm

Boost based on Duty cycle

Post by mjalaly »

Ok so i had my car tuned a while back and i dialed the boost down because of a VSS issue (now resolved). Now i want to turn the boost back up but i dont remember what we were at initially. I do remember my tuner saying that the max boost in my car was limited to the max injector duty cycle. How can i look at the S300 and determine what the boost can be adjust too assuming a 85% duty cycle? My profec read a max boost of 8.4lbs.
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Spunkster
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Re: Boost based on Duty cycle

Post by Spunkster »

You really should talk to your tuner about this as I can't really tell what will be safe or what it war properly tuned for.
mjalaly
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Re: Boost based on Duty cycle

Post by mjalaly »

Haha i did talk with the tuner but they dont remember what the pressure was set too. where or how do i set up the software to show the correlation between the duty cycle and boost pressure?
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Spunkster
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Re: Boost based on Duty cycle

Post by Spunkster »

It is in the boost control section of the Parameters window.
mjalaly
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Re: Boost based on Duty cycle

Post by mjalaly »

but that only applies when the hondata boost controller is used correct?

To actually see what the boost pressure is at a certain duty cycle, i will need to hook up the s300 while driving or datalog it correct?
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Spunkster
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Re: Boost based on Duty cycle

Post by Spunkster »

You must fill in that table based on what boost pressure you actually get at a set duty cycle.
mjalaly
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Re: Boost based on Duty cycle

Post by mjalaly »

how is that done? Do i need to set up a senors with a warning?

I am not able to edit mine which i am assuming is because i am not using the built in boost control correct?
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Spunkster
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Re: Boost based on Duty cycle

Post by Spunkster »

If you are not using the Hondata to control boost then you cannot use these.
mjalaly
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Re: Boost based on Duty cycle

Post by mjalaly »

ok but i originally wanted to know how to safely increase the boost pressure based on a max duty cycle.
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Spunkster
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Re: Boost based on Duty cycle

Post by Spunkster »

If you are trying to determine how much boost your injectors can handle you need to discuss this with your tuner as only they can really safely help you with tuning the car for more boost.

You may also want to read more about tuning at: https://www.hondata.com/tech-duty-cycle
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