Smooth Throttle for UpRev

wstar · 06-15-2013, 07:45 AM

What are you using to judge "better"? I haven't tried any of your maps (or messed with mine) in a long time because I was happy with how mine felt. Lately I've been doing some reading on race tuning in general and it's gotten me thinking about throttle response again, and I'll likely start playing with this stuff again in the next month or two.

What I found in one of my books that makes sense was to setup the throttle with a "Rising rate", where the (smooth!) response curve is inverted dramatically from how my Curve2300 map looks. Basically you drag out the lower part of the power curve over a lot of pedal travel, and then ramp out to full throttle fairly quickly near the end. The reasoning behind this is that you tend to be at neutral/light throttle settings when you really need fine control, and this gives it to you under those conditions. My goal with the previous map was just smooth predictability throughout, but I can see how it would be better to favor making it easy to fine-tune throttle position with your foot in the low range, sacrificing some fine control out in the, say, 75%+ throttle area.

Baer383 · 06-15-2013, 07:53 AM

Quote:

Originally Posted by wstar

What are you using to judge "better"? I haven't tried any of your maps (or messed with mine) in a long time because I was happy with how mine felt. Lately I've been doing some reading on race tuning in general and it's gotten me thinking about throttle response again, and I'll likely start playing with this stuff again in the next month or two.

What I found in one of my books that makes sense was to setup the throttle with a "Rising rate", where the (smooth!) response curve is inverted dramatically from how my Curve2300 map looks. Basically you drag out the lower part of the power ocurve over a lot of pedal travel, and then ramp out to full throttle fairly quickly near the end. The reasoning behind this is that you tend to be at neutral/light throttle settings when you really need fine control, and this gives it to you under those conditions. My goal with the previous map was just smooth predictability throughout, but I can see how it would be better to favor making it easy to fine-tune throttle position with your foot in the low range, sacrificing some fine control out in the, say, 75%+ throttle area.

What I mean by better is "my map"
My map gets the throttle blades to start to open up very quickly to remove any lag in the low end off of idle my curve isn't much differant than yours just my throttle blades open up faster than yours.

wstar · 06-17-2013, 10:56 AM

Quote:

Originally Posted by Baer383

What I mean by better is "my map"
My map gets the throttle blades to start to open up very quickly to remove any lag in the low end off of idle my curve isn't much differant than yours just my throttle blades open up faster than yours.

Yeah I suspect once I start working on my new map, we'll be going in very different directions in most of the rev range. I want to get the throttle to move slow and gradual all in the lower range of the pedal even in the middle of the rev range.

Baer383 · 06-17-2013, 11:37 AM

Quote:

Originally Posted by wstar

Yeah I suspect once I start working on my new map, we'll be going in very different directions in most of the rev range. I want to get the throttle to move slow and gradual all in the lower range of the pedal even in the middle of the rev range.

I'm playing around with that now but I've always liked a touchy gas pedal.

06-15-2013, 07:45 AM	#1 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3596	What are you using to judge "better"? I haven't tried any of your maps (or messed with mine) in a long time because I was happy with how mine felt. Lately I've been doing some reading on race tuning in general and it's gotten me thinking about throttle response again, and I'll likely start playing with this stuff again in the next month or two. What I found in one of my books that makes sense was to setup the throttle with a "Rising rate", where the (smooth!) response curve is inverted dramatically from how my Curve2300 map looks. Basically you drag out the lower part of the power curve over a lot of pedal travel, and then ramp out to full throttle fairly quickly near the end. The reasoning behind this is that you tend to be at neutral/light throttle settings when you really need fine control, and this gives it to you under those conditions. My goal with the previous map was just smooth predictability throughout, but I can see how it would be better to favor making it easy to fine-tune throttle position with your foot in the low range, sacrificing some fine control out in the, say, 75%+ throttle area. __________________ 7AT Track Car! Journal thread / Car setup details

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