The burnout switch mod.
#31
07-12-2007 | 06:23 PM
OCG35,
Keep us posted if you buy the KP module. I'm curious to know if it will improve the launching ability of the 5AT. I think the general consensus is that when you apply the gas and brake at the same time at a stop in a 5AT car, some of the power is cut to reduce the load on the TC. I have no issues stalling the TC to an appropiate launch rpm, but it seems that when you release the brake, there is still a bit of a bog before the ECU allows full throttle to truely be applied. On surfaces where wheelspin can be generated, the bog isn't as apparent because the wheelspin helps keep the rpms higher. But on a sticky track, my car will hardly chirp a tire and the bog is pretty significant till about 3500rpms and then the car takes off really hard. I can't tell if it's because power is cut for about 1 second even after releasing the brake or if it's variable cam timing or it's a combination of both.
Keep us posted if you buy the KP module. I'm curious to know if it will improve the launching ability of the 5AT. I think the general consensus is that when you apply the gas and brake at the same time at a stop in a 5AT car, some of the power is cut to reduce the load on the TC. I have no issues stalling the TC to an appropiate launch rpm, but it seems that when you release the brake, there is still a bit of a bog before the ECU allows full throttle to truely be applied. On surfaces where wheelspin can be generated, the bog isn't as apparent because the wheelspin helps keep the rpms higher. But on a sticky track, my car will hardly chirp a tire and the bog is pretty significant till about 3500rpms and then the car takes off really hard. I can't tell if it's because power is cut for about 1 second even after releasing the brake or if it's variable cam timing or it's a combination of both.
#32
07-12-2007 | 06:56 PM
#34
07-12-2007 | 07:38 PM
Originally Posted by DaveB
OCG35,
Keep us posted if you buy the KP module. I'm curious to know if it will improve the launching ability of the 5AT. I think the general consensus is that when you apply the gas and brake at the same time at a stop in a 5AT car, some of the power is cut to reduce the load on the TC. I have no issues stalling the TC to an appropiate launch rpm, but it seems that when you release the brake, there is still a bit of a bog before the ECU allows full throttle to truely be applied. On surfaces where wheelspin can be generated, the bog isn't as apparent because the wheelspin helps keep the rpms higher. But on a sticky track, my car will hardly chirp a tire and the bog is pretty significant till about 3500rpms and then the car takes off really hard. I can't tell if it's because power is cut for about 1 second even after releasing the brake or if it's variable cam timing or it's a combination of both.
Keep us posted if you buy the KP module. I'm curious to know if it will improve the launching ability of the 5AT. I think the general consensus is that when you apply the gas and brake at the same time at a stop in a 5AT car, some of the power is cut to reduce the load on the TC. I have no issues stalling the TC to an appropiate launch rpm, but it seems that when you release the brake, there is still a bit of a bog before the ECU allows full throttle to truely be applied. On surfaces where wheelspin can be generated, the bog isn't as apparent because the wheelspin helps keep the rpms higher. But on a sticky track, my car will hardly chirp a tire and the bog is pretty significant till about 3500rpms and then the car takes off really hard. I can't tell if it's because power is cut for about 1 second even after releasing the brake or if it's variable cam timing or it's a combination of both.
#35
07-14-2007 | 07:52 PM
#36
07-14-2007 | 07:52 PM
Originally Posted by DaveB
OCG35,
Keep us posted if you buy the KP module. I'm curious to know if it will improve the launching ability of the 5AT. I think the general consensus is that when you apply the gas and brake at the same time at a stop in a 5AT car, some of the power is cut to reduce the load on the TC. I have no issues stalling the TC to an appropiate launch rpm, but it seems that when you release the brake, there is still a bit of a bog before the ECU allows full throttle to truely be applied. On surfaces where wheelspin can be generated, the bog isn't as apparent because the wheelspin helps keep the rpms higher. But on a sticky track, my car will hardly chirp a tire and the bog is pretty significant till about 3500rpms and then the car takes off really hard. I can't tell if it's because power is cut for about 1 second even after releasing the brake or if it's variable cam timing or it's a combination of both.
Keep us posted if you buy the KP module. I'm curious to know if it will improve the launching ability of the 5AT. I think the general consensus is that when you apply the gas and brake at the same time at a stop in a 5AT car, some of the power is cut to reduce the load on the TC. I have no issues stalling the TC to an appropiate launch rpm, but it seems that when you release the brake, there is still a bit of a bog before the ECU allows full throttle to truely be applied. On surfaces where wheelspin can be generated, the bog isn't as apparent because the wheelspin helps keep the rpms higher. But on a sticky track, my car will hardly chirp a tire and the bog is pretty significant till about 3500rpms and then the car takes off really hard. I can't tell if it's because power is cut for about 1 second even after releasing the brake or if it's variable cam timing or it's a combination of both.
#38
12-10-2007 | 06:59 PM
Originally Posted by Godzilla35
any update on the KP module... i keep checking his site, but i dont see anything..
It hasn’t been on many lists of priority
#41
12-11-2007 | 11:47 AM
Originally Posted by GrayG35
whats the stall speed on a stock 5at??
I figured out that doing a burnout is quite easy if you simply disconnect the yaw sensor near the shifter. I can pop off the console and disconnect the sensor in about 1 minute. Burnouts, though I really don't see the point, are cake now. Launching ability doesn't seem any better though. I'll try it at the track and see what happens. When you disconnect the sensor, the SLIP and VDC lights will come on, but ABS will still be active.
#42
12-12-2007 | 01:07 PM
ya i agree that theres no point to doing a stand still burnout unless you have dr's or slicks but i think it might help on the 60ft at the track because you wont bog off the line if you stall it. I need to try this at the track and see if i get better times with this mod or if it stays the same. if anyone goes before me let us know!
#43
12-12-2007 | 03:13 PM
Registered User
Joined: Jul 2004
Posts: 386
Likes: 1
see, thing is, i brake torque at the track [i'm still a newbie though]... and i find that my toyo's t1r's hook up almost TOO well... i feel like if i can warm them up to slip a little bit... it might not bog the tranny down when i just hit the gas... instead of brake torquing... am i making any sense? i'm burnt out from studying for finals, lol
#44
12-12-2007 | 04:56 PM
The KPtech module worked great on all the 6MT vehicles that tested it, but didn't fare well on 5ats.
If the ECU doesn't see a brake signal at least once in X amount of miles it will throw a code, and disable the cruise control. By cutting the pin right at the ECU only the ECU will miss the signal - the brake lights will still work.
On the 5AT vehicle, even though it was proved to be working (through Cypher) the tester was still not able to do standing burn outs. We came to the conclusion that there was something going on with the torque converter that was not allowing higher no load RPMs. Beyond the modification not really doing what we had hoped on the 5AT it also caused some strange behavior with the cruise control system and the turn signals.
Because we didn't have a wide selection of 5AT vehicles to test on locally we decided that it wasn't worth the headache of selling a small demand product that we weren't 100% comfortable with.
If the ECU doesn't see a brake signal at least once in X amount of miles it will throw a code, and disable the cruise control. By cutting the pin right at the ECU only the ECU will miss the signal - the brake lights will still work.
On the 5AT vehicle, even though it was proved to be working (through Cypher) the tester was still not able to do standing burn outs. We came to the conclusion that there was something going on with the torque converter that was not allowing higher no load RPMs. Beyond the modification not really doing what we had hoped on the 5AT it also caused some strange behavior with the cruise control system and the turn signals.
Because we didn't have a wide selection of 5AT vehicles to test on locally we decided that it wasn't worth the headache of selling a small demand product that we weren't 100% comfortable with.
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