anybody ever heard of this 2 step???
 

i've been looking in to getting a 2 step and stumbled across this one that looks awesome and for the price too, just wondering if anyone had heard of it, it allows wot gear changes too :o http://www.rev-lite.com/flat.html

Re:anybody ever heard of this 2 step???
 

I thought uberdata had this feature already aka full throttle launch. I also thought the other one, where during shifting it it keeps your engine running at a minimum rpm, was also in the works... Not sure about the second one. But I know for a fact that uberdata 1.66 offers the FTL which you can pretty much set it at whatever RPM you want, stomp on the gas and itll act just like a rev limiter at that RPM and then dump the clutch.

Re:anybody ever heard of this 2 step???
 

I thought you could only do some ---- like that with a "stall converter" and an auto tranny? humm...maybe I will look a little harder and research.


it looks like it would work....and work good.

Re:anybody ever heard of this 2 step???
 

yea it works... i've been using it on my car. works pretty damn good... just gotta watch out for broken axles when launching at 5k

Re:anybody ever heard of this 2 step???
 

Click the FTL box and set the RPM and your done. Uberdata owns.

Re:anybody ever heard of this 2 step???
 

yeah, uberdata does offer this feature, but from what i've heard from people that have used it and a 2 step, they say an actual 2 step builds boost a lot better than the launch control that uberdata features. i don't even have mine set on my uberdata, maybe i should mess with it some :-\

Re:anybody ever heard of this 2 step???
 

How could a 2 step create more boost than a full throttle launch? neither of them are putting a load on the engine, they basically do the exact same thing. I've used the FTL on Zdyne and Uberdata. Works ------- great

Re:anybody ever heard of this 2 step???
 

well, i guess i'll have to set mine, what was i thinking listening to locals, they would rather run afc's than uberdata b/c "they've seen too many cars blow up with uberdata" ::)

Re:anybody ever heard of this 2 step???
 

Haha, yeah because the AFC is soooooo much safer. :-X
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote

Re:anybody ever heard of this 2 step???
 

a bunch of idiots, and to think these are the people that own the local performance shops, i sure wish i didn't know how to do my own work so i could trust my vehicle to them.

Re:anybody ever heard of this 2 step???
 

They own shops and they use AFC's to tune with? ???
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote

Re:anybody ever heard of this 2 step???
 

they swear by them

Re:anybody ever heard of this 2 step???
 

You didnt answer my question, how can you build boost off the line differently with that 2step compared to uberdata? neither load the engine.

Re:anybody ever heard of this 2 step???
 

i honestly have no idea, i've never had any experience with any type of two step/launch control other than uberdata's ftl, so i had no basis of comparison, a couple guys told me (one that runs uberdata, and one that has, but didn't like it so he went back to the afc ::)) that their two steps *exact words* "spool the turbo up better than uberdata's ftl", i don't know, they obviously don't like uberdata b/c they don't know how to use it :-\

Re:anybody ever heard of this 2 step???
 

It all lies in how the rev control is done. I suspect uberdata uses a fuel cut rev limiter, while the aftermarket 2-step cuts spark. When you cut spark the fuel can burn in the exhaust and create a little more thrust than with the fuel cut but the maximum spoolup would be with running ATDC timing on the limiter, coupled with dropping the occasional spark. It eats turbine wheels tho.

EDIT: Now that I've actually read about this particular stutterbox I've seen that it cuts both fuel and spark.

Re:anybody ever heard of this 2 step???
 

A few months back I played with the timing and fuel while banging the FTL on Uber. On my old T3 I could achieve about 4-5psi while limiting at 6500. I took the timing from 22* at that point in the map and lowered it to like 10* and added %20 fuel. It only made a small diff, like may 6-7psi at 6500. At higher rpms Im sure it would be a few lbs more. I havnt tried it with my larger turbo, but I doubt I could achieve any real boost at any RPM.

So on smaller turbo's, yeah you can build boost off a 2step. Thats my first hand experience. Good luck.

Re:anybody ever heard of this 2 step???
 

With ignition cut i spooled .6bar (full boost on sc61) at 6500.. but with fuel cut it would not get anything.

MSD Rocks

Re:anybody ever heard of this 2 step???
 

Hmm, I'd like to see that ::)

Re:anybody ever heard of this 2 step???
 

that's basically what they were claiming.

Re:anybody ever heard of this 2 step???
 

Thats BS, I have a MSD box as well and tried it, theres no way that sc61 is going to spool without any load on the engine. ---- josh I was just talking to you the other day and you were complaing it was so laggy.

Re:anybody ever heard of this 2 step???
 

Retard the timing to like 1 degree BTDC or even a few degrees ATDC if possible, I guarantee you will get full boost if you just retard the timing enough on the limiter. Retarded timing means part of the mixture is burning in the exhaust manifold, thus generating tons of heat. Don't stay on the limiter for more than a second or two at max because your exhaust mani and turbo will glow bright orange quickly :)

Re:anybody ever heard of this 2 step???
 

^^^ nice.

Re:anybody ever heard of this 2 step???
 

I might add that this is how rally car anti-lag works, on the overrun the ECU lets in some air past the throttle, and runs ATDC timing so the most of the combustion takes place in the exhaust manifold, keeping the turbo nicely spooled while turning or changing gears (on those cars that don't have a clutchless gearbox)
I think they also use this when launching off the line.