two step

[GuNDeZZZ]

Can someone please explain what exactly a two step is and what it is used for????

Im a noob to tuning.... :biglaugh:

[drjonez]

a secondary lower rev limiter used to build boost off the line in drag racing.

[cactus_mole]

and to scare the ever livin' shit out of people...:biglaugh:

[GuNDeZZZ]

and to scare the ever livin' shit out of people...:biglaugh:

yeah i understand how it builds boost at the line but what the hell makes it pop like that???

[drjonez]

the random cutting of spark and fuel.

[88supraTT]

i thought two step was just a rev limit for launching and not necessarily build boost, my civic has a two step and i maybe get 1psi. A anti-lag is a 2 step, but it builds boost when it is reving

[drjonez]

i thought two step was just a rev limit for launching and not necessarily build boost, my civic has a two step and i maybe get 1psi. A anti-lag is a 2 step, but it builds boost when it is reving

you thought wrong? dunno what else to tell you....

i'll delve into the difference between 2 step and anti-lag at a later date....

[a_sesshoumaru]

Who sell them?? how much are they??

[drjonez]

for the stock ECU, only the MSD DIS 4 will work.

you might be able to get some of the wacko secondary rev limiters to do the same thing (Bee-R, etc.).

[a_sesshoumaru]

for the stock ECU, only the MSD DIS 4 will work.

you might be able to get some of the wacko secondary rev limiters to do the same thing (Bee-R, etc.).
Would be the same if i am running a map ecu? i am waiting for mine this week, i guess i will be posting for help soon. :biglaugh:

[drjonez]

ummmmmmmmmm....if the stock ECU is in place, it will be the same....unless the piggyback you're using has provisions for a 2 step (MAP ECU 2).

[supraman11203]

So exactly what are all the components you will need to have a two step setup on your car

[drjonez]

try rereading this thread: there are only 2 devices that allow you to do this on the stock ECU.

[a_sesshoumaru]

for the stock ECU, only the MSD DIS 4 will work.

you might be able to get some of the wacko secondary rev limiters to do the same thing (Bee-R, etc.).

Is there any cheaper than the msd dis 4?

[shaeff]

^ one would think that if there are only two possible solutions, then there's nothing cheaper than those. ;) so, i'm going with a no.

[a_sesshoumaru]

In horsepower freaks this two step is advertised for supra
http://www.horsepowerfreaks.com/price/Toyota/Supra_86-92/Gizzmo_Electronics/Electronics/2_Step_Rev_Limiters

Will this work? cuase is like $300 cheaper

[drjonez]

1. read the text, you need the Tach Recall Shiftlight.

2. i HIGHLY doubt it works on the GTE's ignition.

[lagged]

to answer a previously asked question, the difference between a rev limiter for launch control and anti lag (if my understanding is correct):

a rev limiter will control engine RPMs to a set speed by randomly cutting spark and/or fuel in order to keep the engine at a desired RPM.

anti lag will do the same, but it will also dramatically retard ignition timing to actually cause combustion to take place in the exhaust manifold, which is what spools the turbo while this is taking place.

both are control with a switch usually triggered by the clutch pedal.

[88supraTT]

not really a two step but, what about the bee-r?

[drjonez]

what about it?

buy it and try it.

[shaeff]

oh. my. god. when did people stop reading!?

that is all

[meet07]

what about AEM?? Do they not offer it for the 1jz??

[meet07]

found this about the Gizzmo Launch controller:

Gizzmo's launch Interface integrates with the Gizzmo Tach Recall
Shiftlight to enable the fully adjustable launch control function. The launch control function induces sequential misfire events at the desired rpm set by the user.
In a turbo application, having the throttle open while inducing misfire
increase the velocity and density of exhaust gases, allowing the turbo to spool up and generate boost with load. This results in boost being
generated before launching and therefore allowing a vehicle to launch with considerably more power. The ignition cut is clutch activated
allowing flat changing (the ability to change gear without removing your foot from the throttle). With the clutch engaged the rpm will pull back to the launch rpm previously set by the user in order to avoid over reving, this results in the vehicle not coming off boost while moving through the gears.
Launch control can benefit natural aspirated cars by giving a consistent launch rpm for best results every time, and enable quicker gear changes through flat changing.


Compatible Vehicles:

All Nissans

All Subaru’s

All Mazda’s accept Rotaries

All Honda’s

All Mitsubishi’s

The Rules:

Typically the launch interface will work on any car that has an Igniter that …

1. A) is triggered via the ECU
2. B) is not inside of the ECU
3. C) have not got a feedback system to the ECU e.g.(Toyota)
4. D) have not got a ignition control box that encompasses the igniter e.g.(Holden Commodore V6’s)

Vehicles known that are not compatible

All Holden V6’s

All Toyota’s

All Diesels

[drjonez]

i was about ready to close the thread....but these posts begged approval...

what about AEM?? Do they not offer it for the 1jz??

of course the AEM does it...this is the PIGGYBACK forum.

no AEM for the 1J.

found this about the Gizzmo Launch controller:

<SNIP>

Vehicles known that are not compatible

All Toyota’s



try reading post 16......heck, trying reading what you posted!