Two Step Launch Control???

[nick88]

Alright, here is the deal, I have been researching about 2 steps.

First, the msd dis-4, is it just a rpm activated switch or a rev limiter?

Second, the Bee-r, it kinda looks cheap to me, is anyone using it?

Third, I want to know what you guys are running and what you are using to trigger the lower rev limit, as I have a unused button in my cig light from the previous owner that I could use to use when I am wanting to launch, just hold the button and once I launch let off of the button and it will be back to my no rev limit stealth ecu.

Forth, what did you splice it into in the harness and where?

And this is going on a 1jz.

 

[turbobob]

Alright, here is the deal, I have been researching about 2 steps.

First, the msd dis-4, is it just a rpm activated switch or a rev limiter?

Second, the Bee-r, it kinda looks cheap to me, is anyone using it?

Third, I want to know what you guys are running and what you are using to trigger the lower rev limit, as I have a unused button in my cig light from the previous owner that I could use to use when I am wanting to launch, just hold the button and once I launch let off of the button and it will be back to my no rev limit stealth ecu.

Forth, what did you splice it into in the harness and where?

And this is going on a 1jz.

Hi,

I am working on a 2-step for the 7M engines which may be just the thing for your 1JZ. Lets discuss.

2 steps are used for a couple things.

1, when running nitrous or alcohol injection, hitting the factory fuel cut can cause major leanout, blowing headgaskets or worse.

2, when launching with a manual trans, you can set the limit fairly high and get boost while running on the limiter. If you retard the timing you get even more boost, but a lot of popping also.

3, you can use it in conjunction with the clutch switch to cut the engine out while shifting, thus allowing you to leave your right foot planted. This improves boost recovery after the shift.

4, when launching with an automatic trans you can use a combination of cylinder cut and retard to get more boost while brake torquing.

So, tell me more about your car.

Bob

 

[Supra_Villan]

rush racing? heard its been building great boost on the line vs gizzmo and bee-r

 

[kotu100]

subscribed, how bout more info on the MSD?

 

[nick88]

Hi,

I am working on a 2-step for the 7M engines which may be just the thing for your 1JZ. Lets discuss.

2 steps are used for a couple things.

1, when running nitrous or alcohol injection, hitting the factory fuel cut can cause major leanout, blowing headgaskets or worse.

2, when launching with a manual trans, you can set the limit fairly high and get boost while running on the limiter. If you retard the timing you get even more boost, but a lot of popping also.

3, you can use it in conjunction with the clutch switch to cut the engine out while shifting, thus allowing you to leave your right foot planted. This improves boost recovery after the shift.

4, when launching with an automatic trans you can use a combination of cylinder cut and retard to get more boost while brake torquing.

So, tell me more about your car.

Bob

I will be using mainly for getting off the line with a rev limit of about 35-4500 rpm.

My car will have a single turbo, most likely a t70 with an exhaust a/r of .68

rush racing? heard its been building great boost on the line vs gizzmo and bee-r

Could you give more info.

subscribed, how bout more info on the MSD?

Thats the main reason I started this thread, when reading the description on MSD's website, it seemed like it was more of a rpm activated switch and that I would have to buy a seperate rev limiter to actually make the 2-step functional with the dis-4.

 

[sethron71]

AEM EMS just select a level of harshness(put simply) and it programs all the cuts and retards then you just set the RPM range you want. With that said the AEM has like 6 or 8 variables it sets besides just rpm and retard. I have only played with it a little as I have not raced the car but reving to 4000rpm on a T67 I can make 2psi in less then a second on the limiter. I am pretty sure if I bump up the harshness/aggressiveness of the cut a notch or two and bump the RPM to 5K I can make 18psi on the line! I have it setup on one of the softest hitting limiters that my AEM came pre-programmed with there are like 8 choices.

But I am pretty sure Nick S. is running the Bee-Rev limiter with success on his 2J.

HTH,
Seth

 

[nick88]

AEM EMS just select a level of harshness(put simply) and it programs all the cuts and retards then you just set the RPM range you want. With that said the AEM has like 6 or 8 variables it sets besides just rpm and retard. I have only played with it a little as I have not raced the car but reving to 4000rpm on a T67 I can make 2psi in less then a second on the limiter. I am pretty sure if I bump up the harshness/aggressiveness of the cut a notch or two and bump the RPM to 5K I can make 18psi on the line! I have it setup on one of the softest hitting limiters that my AEM came pre-programmed with there are like 8 choices.

But I am pretty sure Nick S. is running the Bee-Rev limiter with success on his 2J.

HTH,
Seth

Thanks, for your input, but AEM isn't really a option for my 1jz.

But this info could help someone else out.

 

[Supra_Villan]

http://www.rushracingdev.com/al.html

 

[kotu100]

how good is that rush racing one?
any experience with it?

 

[Ozz89supra]

interested if anyone has used the Rush racing one, not a bad price either

 

[Supra_Villan]

how good is that rush racing one?
any experience with it?

i have it but i've yet to install. I've heard alot of good from it. A local guy with an rb26 240 has one and says it builds him like 9-10lbs no problem and does so in a quick fashion.

 

[Supra_Villan]

i have the earlier version though. No fancy controller really. Just a little box with a button on it. Still only 3 wires. And this is the version that they guy i mentioned before has. The new ones look kick ass though.

 

[kotu100]

well hook it up n let us know how it works!

 

[suprahero]

Quoted from the link posted for Rushracing:


The Rush Racing Development Antilag Launch Control is the best way to get your car out of the hole in a hurry. Testing has shown boost pressures over 18 psi and so far, low 1.50 60 foots. This unit also works with manual transmissions as well as most automatics but results below 3500 rpm may vary. Setting the rpm is done with one simple press of the button and out performs other 2-steps. Installation is a snap with only three wires to hook up and no wires to cut. Be advised that this unit works more like the AEM antilag than the traditional 2-step, so flames from the exhaust are likely. WORLD WIDE SHIPPING AVAILABLE!

Marketing genius..........they know everyone want flames out of their exhaust......:biglaugh:

 

[M_31_07]

More information on the rush launch control please!!! does any one else have experience with these, really interested, if not i'll just go the bee r rev limited route.

 

[kamikazemkiii]

What accually causes the poping? i have ideas but not sure

 

[wardog]

Heres a good thread about the RUSH RACING 2 step

http://www.supramania.com/forums/showthread.php?115359-Re-dynoed-on-a-mustang-dyno-last-week/page6

 

[Kevin]

any info on the bee*r? seems to be the cheapest one

 

[supranasty]

What about the life of your small turbo going "BANG" and your Engine going "CLING" . All for a 12 sec. Pass in the 1\4 . THINK IT OVER .

 

[nick88]

What about the life of your small turbo going "BANG" and your Engine going "CLING" . All for a 12 sec. Pass in the 1\4 . THINK IT OVER .

My turbo is not small, so who are you talking to? Please quote next time.