ALS System on top of 2-step to spool turbo?

[forcefed86]

Using the 2-step and retarding timing to spool a turbo on the trans brake. Currently using The 2 step only. Pulling timing to -20* on the brake. This does result in a small amount of popping/banging and will eventually build 4lbs of boost or so. It's not near as violent as my previous 2-step on the AEM unit. Would adding the ALS in addition to the 2-step allow me to fine tune this at all? Or is it an either/or deal?

May just end up putting a 50-75 shot on the car to get it to spool. The 2-step doesn't seem up to the job.

[papiogxl]

Try not pulling any timing out. An auto will have a load on the engine, so it won't need as aggressive of a cut to hold revs.

[forcefed86]

Try not pulling any timing out. An auto will have a load on the engine, so it won't need as aggressive of a cut to hold revs.

Thanks for the input, but thats not the case with this setup. It's using an overly tight converter that was made for a 6.0 engine. I'm running my spare 4.8 liter motor because I hurt the other. The cars lucky to see 2800rpm on the trans brake and 1lb of boost without pulling ALOT of timing.

I've also tried advancing the timing to 40* on the 2-step only. Retarding to -20 seemed to do slightly better, less retard was less effective.

[jsmcortina]

How do you think that ALS would change things? It uses the same spark-cut mechanism as 2-step. Also, ALS is only applicable when _off_ the throttle.

James

[forcefed86]

How do you think that ALS would change things? It uses the same spark-cut mechanism as 2-step. Also, ALS is only applicable when _off_ the throttle.

James

Looks like the TPS input for activation is adjustable to any TPS position. I was just wondering if the ALS system altered the "ignition cut" in a different way. Hard to explain any other way but the previous "anti-lag" I was using was just 10x more violent. Sounded like shotgun blasts and shot a steady open flame out the down pipe like this....

https://www.youtube.com/watch?v=lckXqMU50J4

The MS3 2-step just kinda pops and sputters weakly. In the data logs it looks like its slowly cycling -20 and my map based timing instead of holding the ignition at -20.

[jsmcortina]

Perhaps try the current development (pre-1.4) firmware - it gives you more options to customise the 2-step behaviour.

James