Stationary Rev Limit,,,couple ?'s
Thread Starter
Evolving Member
iTrader: (9)
Joined: Dec 2005
Posts: 374
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From: Morgantown, WV
Stationary Rev Limit,,,couple ?'s
Hi all,
I was wondering if there is an undefined item in the roms for the stationary and normal rev limit. I am looking for a value that turns the rev limit off. If anyone has messed with a Subaru you know that there are two values for the rev limit. One to turn it on (which we have) another to turn it off.
Reason I ask is I would like to adjust how close together they are for the two step. I want to make them closer together in an effort to help launching and build more boost off the line. This would be comparable to most aftermarket EM's. If there are no two seperate rev values, is there a timer or something? I am almost certain there has to be a value in the ecu somewhere that tells it to disengage the rev limit.
SQ
I was wondering if there is an undefined item in the roms for the stationary and normal rev limit. I am looking for a value that turns the rev limit off. If anyone has messed with a Subaru you know that there are two values for the rev limit. One to turn it on (which we have) another to turn it off.
Reason I ask is I would like to adjust how close together they are for the two step. I want to make them closer together in an effort to help launching and build more boost off the line. This would be comparable to most aftermarket EM's. If there are no two seperate rev values, is there a timer or something? I am almost certain there has to be a value in the ecu somewhere that tells it to disengage the rev limit.
SQ
I'm not sure exactly what you are asking ...
The stationary rev limit was disabled from the factory on the 03/04 models by simply raising it above the actual rev limit. There may be a type of switch value to turn it completely off, but I don't know how useful that would be.
To increase the boost build while on the limiter, you can simply lower timing in the 120-160 load area where you have the limit set. My limiter is at 5600 and I've got timing set at 7* in 120/140 and 8* in 160 in the 5500 and 6000 rows. This builds about .65 bar on the line.
I've gotten it to build about 1.1 bar but started to see knock and spun badly when I launched. ~10 psi works well for launching on street tires.
The stationary rev limit was disabled from the factory on the 03/04 models by simply raising it above the actual rev limit. There may be a type of switch value to turn it completely off, but I don't know how useful that would be.
To increase the boost build while on the limiter, you can simply lower timing in the 120-160 load area where you have the limit set. My limiter is at 5600 and I've got timing set at 7* in 120/140 and 8* in 160 in the 5500 and 6000 rows. This builds about .65 bar on the line.
I've gotten it to build about 1.1 bar but started to see knock and spun badly when I launched. ~10 psi works well for launching on street tires.
How can you find the load area for the two step. It seems to me that if you were to retard the timing in the area of the two step it would increase the boost therefore changing where your load is. It doesnt seem to me that you could ever "catch" the two step load area.
Thread Starter
Evolving Member
iTrader: (9)
Joined: Dec 2005
Posts: 374
Likes: 0
From: Morgantown, WV
What I meant was say our two step is at 6000rpms. I assume it is cutting fuel rather then spark, so at 6k it cuts off the injectors and doesn't fire the injectors again till 5900. (this is what my logs seem to show). I would like to close the window so to speak to say 5950/6000 rather than 5900/6000
Basically you can adjust how "harsh" the limiter is. bigger gap, harsher limiter.
Kinda hard to describe.
SQ
Basically you can adjust how "harsh" the limiter is. bigger gap, harsher limiter.
Kinda hard to describe.
SQ
