![]() ![]() The fastest UMTR car (Roger Blile) runs a liberty equalizer, but just about all of the transmissions are used in this vid. ![]() Its interesting to see how quick each of them shift (if you can put up with the music). Its my understanding that the lenco is the strongest.Īll in car. I have friends running jerico, gforce 4 and 5 speeds, lencos, and liberty equalizers and I haven't heard anyone complain about any of them. If going with a jerico, then I'd suggest the dr4 Revision 4 which I think the only version that they sell now (stronger case, wider gears). I've heard that the gforce 4spd shifts quicker. I would love to see the ET gains from one of these on my car and that is how "Orange Man Bad" will eventually evolve.I can't tell you what's best, but my jerico has well over a thousand passes and I bought used from a fellow running deep nines in a cough, cough fairlane. On a small 3.2L motor, BIG turbo car like mine this full power shifts would keep the car at full power the whole way down the track and also help keep RPM up and the clutch locked up on shifts. In the future, I do plan on going to a Liberty clutchless 5-speed. At the same event we cut a 1.1 sixty foot, so they say every tenth in the sixty foot equates to two tenths in the quarter, so this car has potential to run 6.60's All of these little tricks help make this car the world record holder with a best of 6.84 213mph with "soft" 1.20 sixty foot. These little things improve shifting time, and on a small displacement motor with a big turbo any gains there can be substantial. This is the same principal as "stabbing the clutch" which is just another way to interrupt power to allow the car to get into the next gear. When I move the shifter, it does a split-second cut of power, allowing me to jam into the next gear. So basically it can detect when I pull or push on the shifter. This is basically a load cell which can detect deflection in a shifter handle. I use a strain gauge which allows me to cut the power electronically and kill ignition on a shift. I can shift without the clutch, so I have taken my car one step closer towards "clutchless" but I still have to interrupt power to allow for a gear change. It is in essence what you would find in a 2010 Camaro, with some trickery to make it stronger (cryo/rem) and shift quicker (faceplating). ![]() The GR1000F Transmission kit in my car has some extra tricks to help it shift faster and live longer, but it is still a OEM T56 case, and the factory Tremec Magnum helical gearset (with Liberty faceplated 1st-4th gears). You can blow a motor, destroy a clutch or transmission, wreck the valvetrain, and i've seen it even send cars into the wall. They call it "money shift", because it is going to cost you a lot of money. Shifting into the wrong gear, the dreaded "money shift" or 1-2-1 shift can happen to even the most experienced drivers. With an h-pattern shifter you can also make BIG MISTAKES. For example, if you are a REAL street car using a synchronized transmission, you have to clutch the car to keep the synchros alive. H-Pattern drag racing has disadvantages, you basically need to "lift" or interrupt power, OR depending on your transmission setup you may have to use the clutch. On large displacement motor cars the full power upshifts would not make as big of a difference. Another advantage is these cars never use the clutch other than the initial launch. There is no-pattern in the shifts other than back and forth. You select the gears, you "interrupt power" (aka, use the clutch to remove the load) to get from one gear to the next.Ī "clutchless" transmission like a Liberty, Lenco or some of the other sequential options allow you to FULL POWER shift from one gear to the next. You move the shifter back and forth and left to right in an H-Pattern to select the gears. ![]() The easiest way to describe the difference is an H-Pattern transmission is what you would find in any OEM manufactured "manual" car. I wrote this up and made this video and blog article help clear up some of the differences. So, in this video I will try to explain the difference between an H-Pattern "stick shift" car like mine versus a Liberty, Lenco, or other clutchless style "stick shift" transmission.įor those that follow stick shift racing, we know the difference between clutchless cars and true h-pattern stick shift cars like Grubb Worm, Red Demon, and Minion. Well, I got what I wanted with a 1.10 sixty foot wanted but ended up money shifting the car. After we figured that out we got the new record pass, but I wanted to try and get a better short track pass as the 6.84 pass was on a "soft" 1.20 sixty foot. The first 3-4 passes all where wheelie shows, too much power too late with not enough wheelspeed. At the Hail Mary Derby 2020, I ran a 6.84 resetting the H-Pattern record, but I also had a few passes that didn't go so well. ![]()
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