Tuned at HBSpeed
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Jun 13, 2009, 06:24 PM
#5
Check it out. This is a car with tbe and injen. Holding 24 to 23.6 psi from peak to 5500 rpm, then it tapers to 19.4 psi by redline. This is w/o a pill and w/o a wga. Pure ECUboost control using the stock BCS system with all the stock pills in place.
Last edited by nj1266; Jun 13, 2009 at 06:26 PM.
Jun 13, 2009, 07:31 PM
#6
^^^ a lot of cars tuned from hbspeed has my boost levels, without wga or boost pills. i don't exactly understand how, since the stock wga's springs are rated much less. i'd think even with the ecu tuned on the wastegate cycle the physical spring itself shouldn't be able to hold to that kind of pressure. then again, i'm not the one tuning, so jon should be able to provide a better answer than i could.
Jun 13, 2009, 08:21 PM
#7
^^^ a lot of cars tuned from hbspeed has my boost levels, without wga or boost pills. i don't exactly understand how, since the stock wga's springs are rated much less. i'd think even with the ecu tuned on the wastegate cycle the physical spring itself shouldn't be able to hold to that kind of pressure. then again, i'm not the one tuning, so jon should be able to provide a better answer than i could.
Here is a 100% stock Evo X peaking at 25.5 psi holding 23.xx psi by 5500 rpm and tapering to 18.4 psi by redline. It can be done. The Dual Solenoid set-up on the Evo X is way superior to that on the Evo 8/9. That is why you do not need a pill, you do not need an aftermarket wga. All you need is a good WGDC and BTEL set-up in the ECU.
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Jun 13, 2009, 08:49 PM
#9
It is all in how you set-up the WGDC tables and making sure that the logged load numbers match or exceed the Boost Target Engine Load numbers. I have been doing ECU boost control since I had an Evo 8. I just adapted what I have learned on the 8/9 to the 10.
Here is a 100% stock Evo X peaking at 25.5 psi holding 23.xx psi by 5500 rpm and tapering to 18.4 psi by redline. It can be done. The Dual Solenoid set-up on the Evo X is way superior to that on the Evo 8/9. That is why you do not need a pill, you do not need an aftermarket wga. All you need is a good WGDC and BTEL set-up in the ECU.
Here is a 100% stock Evo X peaking at 25.5 psi holding 23.xx psi by 5500 rpm and tapering to 18.4 psi by redline. It can be done. The Dual Solenoid set-up on the Evo X is way superior to that on the Evo 8/9. That is why you do not need a pill, you do not need an aftermarket wga. All you need is a good WGDC and BTEL set-up in the ECU.
Jun 13, 2009, 09:30 PM
#11
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Ahh the wga vs pill issue
I like both but not necessarily together.
The pill is more necessary on cars that have a more restrictive exhaust
All the pill does is reduce the pressure on the wastegate which in turn raises the boost
Actuators are a stiffer spring that effectivly do the same thing raise boost!
I always tune X with no pill then if necessary add one....
Some wga are stickier than others and cause weird fluctuations
Some dp' cause issues like that too
My point in the end is that I do what is necessary to produce the powerband that I want...
I will say that boost does not always = power.
Having a load based dyno that can show the differences of 1-2 psi and 1-2 degrees of timing is a great asset
I like both but not necessarily together.
The pill is more necessary on cars that have a more restrictive exhaust
All the pill does is reduce the pressure on the wastegate which in turn raises the boost
Actuators are a stiffer spring that effectivly do the same thing raise boost!
I always tune X with no pill then if necessary add one....
Some wga are stickier than others and cause weird fluctuations
Some dp' cause issues like that too
My point in the end is that I do what is necessary to produce the powerband that I want...
I will say that boost does not always = power.
Having a load based dyno that can show the differences of 1-2 psi and 1-2 degrees of timing is a great asset
Jun 13, 2009, 10:14 PM
#12
I have been tuning ECUboost for a while now. AFAIK, I was the first in SoCal to use ECUboost control with the pill on the Evo 8/9. The Evo 8/9 MUST have a pill. Boost cannot be held higher than stock w/o a smaller restirctor pill on the Evo 8/9. The WGDC tables are maxxed out on the stock rom on the 8/9. On the Evo X, the reactive solenoid is maxxed out at WOT, but the passive is barely touched. That is why you have so much room to increase the boost on an Evo X w/o a pill or WGA.
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