Butterflies are inherently non linear, and the engines response is also non linear. Your idea to give the driver more control is excellent, very few think control is necessary, however you need to look into creating a non linear pedal ratio from either using different angular motion of the TC or better yet, using a snail type arc that makes the pedal to butterfly ratio a logarithmic ratio. You can achieve finer throttle control and still incorporate butterfly power limiting in one device.
Correct, the pedal linkage is non linear, your ankle/foot movement is non linear, the carburetor linkage is non linear (as mentioned).. there are lots of arcs. We’ve found that the TC device, angled at its recommended settings, doesn’t alter the default MAP much, just acts as an offset. It is common in our form of racing to orient the pedal linkage in a way that gives a progressive pedal/carb linkage relationship, so that the control is biased towards the early parts of the pedal throw when you are trying to control wheel spin most.
Hey Austin, have you considered a brake bias type mechanism or something similar in place of the allen screw? Having the capability to adjust down the straightaway/during a race would be fantastic, I know I would fumble the allen key under pressure lol.
If your rules permit, then yes. Special attention would need to be paid to how that cable was mounted, so it didn’t cause unwanted resistance to the pedal!
@@AKracecars A small servo motor might work or if you tip the unit sideways and use a Morse type cable attached near the pivot and a knob up on the dash.
No kidding. Years ago I showed up to Lake Ozark speedway with my sportsman car. I was running a BBC. The tech guys said I couldn't race because I didn't have a 'full sized' firewall. One of the tech guys really wanted to see how a BBC would run, so he pointed me to a tree with a bunch of sheet metal laying under it. He told me If I could get a firewall running the entire width of the car, I could race that night. We proceeded to hack & rivet a piece of sheet aluminum to the firewall... A few zip ties on the passenger side & we were good to go. Because I was a 'late entry' I had to start at the back of the pack on the 3rd heat race. They were only taking top 3 cars to the feature. By the end of the 8 lap heat, I was in 4th place of a 10 car heat, & was on the inside of the 3rd place car, 1/2 car back on turn 4 of taking the checkered flag... So, in my excitement, I pushed on the throttle as hard as I could, trying to beat the 3rd. place car to the stripe... Missed it by a bumper. Let off the throttle, and it was stuck wide open. pulled & pulled up on the throttle, no go. I wend wide open into turn 1 when everyone else was slowing down because the race was over. Needless to say, I not only wound up backwards into the fence in turn 2 but also collected the 3rd place car on one side of me, but the 2nd place car on the other side of me. We were tangled up too, took about 15 minutes to get us apart. Turns out, I was using all thread for my throttle linkage from the peddle to the carb. When I pressed the throttle extra hard on the last turn, the all thread bowed & hung up on the hole through the NEW firewall that the track officials made me install, in order to be legal. Bent tie rods & drag link was the damage. Had parts, got it together before the last chance heat, but couldn't get the front end aligned right & finished 5th in that heat, 2 places out of the feature... This device probably would have saved me from total embarrassment.
if it could be adjusted on track like Indycar brake bias it would be even cooler, or trim tabs on a Cessna. My dirt bikes all have 2 ignition maps and an anti wheel spin setting, you can adjust on track too
Now figure out a way to Make it adjustable while racing similiar to a brake bias knob that the driver can simply turn as and hkw ever needed.. 🤔. Your quite the thinker 🧠 💪🏻🏁
Fabulous product I don't know the late model chassis builders integrous natures, However in the Dirt modified world , the saying " invent something and within 3 weeks Pete Bicknell Racecars would have stolen the idea "" SO --take it from a master inventor APPLY FOR PATENT PROTECTION with a PCT application so you have IP protection in many countries i.e Austrailia, New Zeland, Canada----watch out for Bicknell
That seams to me to be a pretty stupid product? If your can has more power then you need just dont push on the gas pedal as hard. If the driver can't do that get a new driver.
I watched the straight axle video first. They said you were an astronaut.. you might just be.. lol. Looking forward to more videos 👍🏼
Butterflies are inherently non linear, and the engines response is also non linear. Your idea to give the driver more control is excellent, very few think control is necessary, however you need to look into creating a non linear pedal ratio from either using different angular motion of the TC or better yet, using a snail type arc that makes the pedal to butterfly ratio a logarithmic ratio. You can achieve finer throttle control and still incorporate butterfly power limiting in one device.
Correct, the pedal linkage is non linear, your ankle/foot movement is non linear, the carburetor linkage is non linear (as mentioned).. there are lots of arcs. We’ve found that the TC device, angled at its recommended settings, doesn’t alter the default MAP much, just acts as an offset. It is common in our form of racing to orient the pedal linkage in a way that gives a progressive pedal/carb linkage relationship, so that the control is biased towards the early parts of the pedal throw when you are trying to control wheel spin most.
Brilliantly simple idea! As a B Mod guy im just envious of you guys who have enough motor to sometimes need less power haha
Damn this dude is a genius
Great idea. A cockpit and camera view of carburetor linkage in use on a track would be great.
Absolutely f'in brilliant! 👌🏼
Good looking bit of gear, well done.
Cannot wait to see new videos
Love your channel
Looking forward to more videos!
Hey Austin, have you considered a brake bias type mechanism or something similar in place of the allen screw? Having the capability to adjust down the straightaway/during a race would be fantastic, I know I would fumble the allen key under pressure lol.
My first thought as well,if a track rubbers up you can gain power or if a track dries up take power out on the fly... great idea
If your rules permit, then yes. Special attention would need to be paid to how that cable was mounted, so it didn’t cause unwanted resistance to the pedal!
@@AKracecars A small servo motor might work or if you tip the unit sideways and use a Morse type cable attached near the pivot and a knob up on the dash.
Austin tell them it is also a safety deal you will be able to get your hand on a stuck throttle.
Good point!
That's actually a great selling point
No kidding. Years ago I showed up to Lake Ozark speedway with my sportsman car. I was running a BBC. The tech guys said I couldn't race because I didn't have a 'full sized' firewall. One of the tech guys really wanted to see how a BBC would run, so he pointed me to a tree with a bunch of sheet metal laying under it. He told me If I could get a firewall running the entire width of the car, I could race that night.
We proceeded to hack & rivet a piece of sheet aluminum to the firewall... A few zip ties on the passenger side & we were good to go.
Because I was a 'late entry' I had to start at the back of the pack on the 3rd heat race. They were only taking top 3 cars to the feature. By the end of the 8 lap heat, I was in 4th place of a 10 car heat, & was on the inside of the 3rd place car, 1/2 car back on turn 4 of taking the checkered flag... So, in my excitement, I pushed on the throttle as hard as I could, trying to beat the 3rd. place car to the stripe... Missed it by a bumper.
Let off the throttle, and it was stuck wide open. pulled & pulled up on the throttle, no go. I wend wide open into turn 1 when everyone else was slowing down because the race was over. Needless to say, I not only wound up backwards into the fence in turn 2 but also collected the 3rd place car on one side of me, but the 2nd place car on the other side of me. We were tangled up too, took about 15 minutes to get us apart.
Turns out, I was using all thread for my throttle linkage from the peddle to the carb. When I pressed the throttle extra hard on the last turn, the all thread bowed & hung up on the hole through the NEW firewall that the track officials made me install, in order to be legal.
Bent tie rods & drag link was the damage. Had parts, got it together before the last chance heat, but couldn't get the front end aligned right & finished 5th in that heat, 2 places out of the feature...
This device probably would have saved me from total embarrassment.
That is no small improvement on the status quo. Well done!
Interesting... Maybe put a star knob, with a fixed adjuster, so you could adjust throttle position on the fly... Kinda like a brake bias adjuster.
if it could be adjusted on track like Indycar brake bias it would be even cooler, or trim tabs on a Cessna. My dirt bikes all have 2 ignition maps and an anti wheel spin setting, you can adjust on track too
Wow great product.
Awesome stuff 😎😎😎😎
🔥🔥🔥 very nice bud
Can you attach a brake bias handle to the top to make it adjustable while one track?
Never mind I see others were thinking the same thing. 😂
Now, if you can figure out a way to tie that ratio adjuster to the 5th coil, and let it adjust ITSELF... 😉
A Venture fan... :D
Add a knob so it can be operated on track.
Stepper Motor would do the trick. All you need is a potentiometer in the cab and you can do it on the fly...
Now figure out a way to Make it adjustable while racing similiar to a brake bias knob that the driver can simply turn as and hkw ever needed.. 🤔. Your quite the thinker
🧠 💪🏻🏁
Fabulous product I don't know the late model chassis builders integrous natures, However in the Dirt modified world , the saying " invent something and within 3 weeks Pete Bicknell Racecars would have stolen the idea "" SO --take it from a master inventor APPLY FOR PATENT PROTECTION with a PCT application so you have IP protection in many countries i.e Austrailia, New Zeland, Canada----watch out for Bicknell
I liked your straight axle front end alot but this is just a crutch for a smash and go driver my opinion
That’s like saying the slipper clutch on a top fuel dragster is a crutch. Making the car easier to drive is setting yourself up for success 👍🏻
That seams to me to be a pretty stupid product? If your can has more power then you need just dont push on the gas pedal as hard. If the driver can't do that get a new driver.
That's a long way of saying you know jack about real racing
tell me you know nothing about dirt racing without telling me you don't know anything about dirt racing lmao