HOW TO - Control boost using ECUFLash and the stock boost solenoid
Thread Starter
Joined: Jun 2005
Posts: 3,419
Likes: 14
From: Chico, CA (NOR-CAL)
Originally Posted by mchuang
Well I am at 20psi now and I am trying to get to 23psi wastegate set at 100% so I will remove restrictor just like Gen1 Dsm's and Gen2 Dsm's use to. They have no management and use to get 2 or 3 extra psi. So I figure it should be the same for us. I think I may drop it to 80% and put error correction back just in case and see what happens.
Error correction is the last thing I'm working on setting-up then my boost control will be done.
Originally Posted by Evo_Kid
I wonder if the duel solenoid setup can be installed on a USDM IX.
Evolved Member
Joined: May 2006
Posts: 2,399
Likes: 6
From: UK
We're not at the stage yet of having characterised all the inputs and ouputs on the ECU sockets and to which pins on the actual microcontroller they ultimately attach to. There may well be multiple unused inputs and outputs right there wired to the sockets, which would be exciting for doing custom stuff like this.
Don't know about the current handling of doubling up two solenoids on the one feed either, could blow the driver circuit.
I think the experimentation with restrictors/lines/actuator is good, or just changing to a 3 port solenoid if you find one resistance matched.
Don't know about the current handling of doubling up two solenoids on the one feed either, could blow the driver circuit.
I think the experimentation with restrictors/lines/actuator is good, or just changing to a 3 port solenoid if you find one resistance matched.
hi 
I can't find a drill bit here in mexico, i just drop a #40 nitrous jet into the hose and reintalled , work fine , I got 22 psi at 70WG duty, but when my car hit about 5000 stop pulling hard, i think its fuel cut . can I fixed with the ecuflash?
tks viva mexico!!
I can't find a drill bit here in mexico, i just drop a #40 nitrous jet into the hose and reintalled , work fine , I got 22 psi at 70WG duty, but when my car hit about 5000 stop pulling hard, i think its fuel cut . can I fixed with the ecuflash?
tks viva mexico!!
Originally Posted by mosorio29
hi
I can't find a drill bit here in mexico, i just drop a #40 nitrous jet into the hose and reintalled , work fine , I got 22 psi at 70WG duty, but when my car hit about 5000 stop pulling hard, i think its fuel cut . can I fixed with the ecuflash?
tks viva mexico!!
I can't find a drill bit here in mexico, i just drop a #40 nitrous jet into the hose and reintalled , work fine , I got 22 psi at 70WG duty, but when my car hit about 5000 stop pulling hard, i think its fuel cut . can I fixed with the ecuflash?
tks viva mexico!!
Originally Posted by Evo_Kid
I went out and played with boost desired load target. Lowering it from 159 to 60 did nothing.
I dont think it has any control of the boost, but I do think its very important to correct boost control and a stable boost curve.
Going back outside right now to try a couple new thing.......
I dont think it has any control of the boost, but I do think its very important to correct boost control and a stable boost curve.
Going back outside right now to try a couple new thing.......
-20.0__9.5
-17.5__9.5
-15.0__9.5
-12.5__9.5
-10.0__8.0
-7.5___5.0
-5.0___4.0
-2.5___2.5
0.0___0.0
but it wont hold much past 20psi past 6k, basically like a long spike.
Thread Starter
Joined: Jun 2005
Posts: 3,419
Likes: 14
From: Chico, CA (NOR-CAL)
^^
I believe the reason rasing the load raises boost some what, and only during taper is this...
Your load tapers just like boost. So when you raise the load, where taper would normally be, the engine cant hit the higher load, so the error correction table tries to add more WG duty (the WG duty can really go to 127.5, but the 27.5 part is for error correction). Because of this the boost goes higher. Its not really going higher because you increased the load, its going higher because error correctionn is adding WG duty.
Refer to post #33 in this thread for more on this.
Again, this theory, like my other theories, is just that, a theory and therefore might be wrong/incorrect.
I believe the reason rasing the load raises boost some what, and only during taper is this...
Your load tapers just like boost. So when you raise the load, where taper would normally be, the engine cant hit the higher load, so the error correction table tries to add more WG duty (the WG duty can really go to 127.5, but the 27.5 part is for error correction). Because of this the boost goes higher. Its not really going higher because you increased the load, its going higher because error correctionn is adding WG duty.
Refer to post #33 in this thread for more on this.
Again, this theory, like my other theories, is just that, a theory and therefore might be wrong/incorrect.
