emilio700

iTrader: (3)

That would have the opposite effect. Revs would rise instead of fall slightly.

Leafy

iTrader: (1)

But for clutchless shifting on a dog box you dont care about the revs change all you need to do is relieve the loading of the dogs. Thats why if you pull on the stick while full throttle it really doesnt move but as soon as you lift it comes right out of one gear and into the next.

NiklasFalk

iTrader: (1)

using the switch(s) to cut spark of course.
My synchro box got a little upset when I one did a flatshift without the function turned on, the gear went in with a crunch (3-4 in a 5sp, full throttle and close to no clutch).

But if you cannot bang it out of gear without unloading, the neutral switch is useless, but the clutch switch can still be used.

hingstonwm

iTrader: (2)

Don't know how much faster you need to shift, up shifts with my current dog box are lightning fast and you don't have to worry about a switch failing. Not to mention all the new timing I have to learn pushing a button and then pulling the shift lever as I am drifting out of a corner and making that next up shift. Not to mention I am not running a car that took hundreds on thousands of dollars to make, for road racing, I will stay with lift and shift, however, for drag racing the nanoseconds saved could make an ignition cut for flat shifting worthwhile. Of course it's JMO.

Leafy

iTrader: (1)

The right way to do it is super-gluing a 40 cent strain gauge to the shifter and setting it up properly with a voltage divider (made from 3 other 40 cent strain gauges glued to a flat plate) and connected to the ecu.

Ryan_G

iTrader: (8)

This sounds genious. No idea how exactly this workd in practice but I am understanding the overall idea.

glade

iTrader: (2)

It would work like this I assume

MTI Racing Six Shooter Sequential Transmission:




And I would buy at least 1, if not two if it were like this

Leafy

iTrader: (1)

Basically the strain gauge changes resistance with tiny deflections in parts, even the tiny ones you get from pulling on the gear lever while its in gear. The voltage divider converts that resistance into a voltage that varies from 0-5v typically. When the ecu detects the voltage gets to a certain range it activate the NLS. AEM has this function built in, so does haltech, and I'm sure most others. There's a lot of really cool **** you can do with strain gauges.

emilio700

iTrader: (3)

That is a PPG sequential. Shifter moves fore-aft only, no side to side H pattern. Our concept is an H pattern dog box.

glade

iTrader: (2)

My apologies, I was thinking that the rod attached to the shifter (to cut revs, or blip the throttle) would be better visualized with the video.

emilio700

iTrader: (3)

ah. I like the idea of a strain gauge on the shifter that others posted. The lever won't move until the load on the gears is reduced sharply, but it will deflect by a few .000. The few times I drove a car with a dog box, it took a while to get accustomed to left foot braking. Once you get that down though, everything is faster and smoother.

hingstonwm

iTrader: (2)

Here is a short video with shift from 2nd-4th

codingparadox

iTrader: (2)

Vid is private.

hingstonwm

iTrader: (2)

sorry, fixed

hrk

iTrader: (6)

In.

mr2daj

iTrader: (-1)

Im in too. so when can i have it? lol

Der_Idiot

iTrader: (2)

schmoo

Sounds really interesting. Gotta say though that the noise of straight cut would be pretty awesome.

DeerHunter

For a daily driver, not so much. My Quaife gearset (which is only semi-straight-cut) sounds like a supercharger in lower gears (cool!) but is downright annoying at highway speeds in top gear.

Amellrotts

iTrader: (2)

My brain hurts!
In for results and people's thoughts though we seemed to have given up on throwing ideas around and instead of pulling the unicorn from our collective asses, we are looking to Emilio to pull one from his?
I have a semi truck and can drive it without a clutch so I feel the dog box would not be a problem to daily, but maybe I don't want to be the only one to drive my car on a long trip? At least for me, street manners matter.
I remember reading the Corky was working on a T5 conversion that wasn't suppose to weigh a ton more. Does anybody know what came of that? Even if he is slow to get it to market if that is a good option for the street car who is not looking to get every last bit out of it on the track like Sav, I will do the fab myself. Thoughts?