Control Over Boost Seileniod
Originally Posted by jansolo
Actually, I believe the pill change is there for another reason - try putting the boost solenoid duty cycle to 100% and see what happens. You just gotta do the math and you should be able to figure it out. 
Originally Posted by nebolic
questio? If the boost is set and controlled by the ECU how come it still tapers? Just curious cause if the ECU is controlling the boost and you tell it to boost 20psi, shouldn't it technically stay at 20psi without tapering since the ECU is wanting it to boost 20psi?
Nebo
Nebo
I saw it, it worked good, it sucked on my car cuz my stock solenoid was having problems anyway (probably due to pulling timing)... but it still didn't taper.. even though I was only hitting 17psi
Originally Posted by nebolic
So any updates on this boost control with ECU, the last posts were still (testing?) phase? How does it look so far?
Nebo
Nebo
I have done it on at least 15 evos now with no problems so I would say the testing phase is over
Then.
And now (from this response).
I am confused. Do you or do you not need to use a pill to control boost?
Originally Posted by DynoFlash
What I am saying - is there is "control" and there is CONTROL. There are several differenet parameters to control - its figuring out which does which and how they work that is the key. When I see others using "pills" to control boost - I somehow think they have not yet figured out the whole picture. I am able to control the boost with no pills.
Originally Posted by DynoFlash
Yes - this requires a pill modification and a custom flash
The stock pills limit the boost to 20 psi max with 100% boost solinoid duty cycle - hence the set up with stock boost hoses and pills is super safe
With pill modifications - 24 psi and a totally smooth boost is possible with only the stock ecu
In time, I hope to offer a series of boost hoses pre-fabed and modified in conjunction with various ecu flashes to hold pre-detrmined boost levels through the mail
For now only 20 psi is avialble through the mail
The stock pills limit the boost to 20 psi max with 100% boost solinoid duty cycle - hence the set up with stock boost hoses and pills is super safe
With pill modifications - 24 psi and a totally smooth boost is possible with only the stock ecu
In time, I hope to offer a series of boost hoses pre-fabed and modified in conjunction with various ecu flashes to hold pre-detrmined boost levels through the mail
For now only 20 psi is avialble through the mail
Originally Posted by jansolo
Then.
And now (from this response).
I am confused. Do you or do you not need to use a pill to control boost?
And now (from this response).
I am confused. Do you or do you not need to use a pill to control boost?
It is designed for the Evo enthusiast who has gotten bored with his/her car and is looking to add an element of surprise and a little excitement in his/her commute.
"I'm about to merge onto the freeway.. c'mon 20 psi! Crap, I only got 2 psi! Better call Maaco."
-- DavidV
Originally Posted by DavidV
No, I think you need re-read his comments. He clearly said the pills are only needed for pre-determined boost levels. Al's no-pill tune allows for non-predetermined "random" boost -- sometimes you might get 6 psi, sometimes 60 psi. You never know!
It is designed for the Evo enthusiast who has gotten bored with his/her car and is looking to add an element of surprise and a little excitement in his/her commute.
"I'm about to merge onto the freeway.. c'mon 20 psi! Crap, I only got 2 psi! Better call Maaco."
-- DavidV
It is designed for the Evo enthusiast who has gotten bored with his/her car and is looking to add an element of surprise and a little excitement in his/her commute.
"I'm about to merge onto the freeway.. c'mon 20 psi! Crap, I only got 2 psi! Better call Maaco."
-- DavidV

Go spew your idiotic comments else where please.
What I CLEARLY said was that I can control boost to 20 psi - which is the recomended boost level for pump gas on my though the mail flashes.
IT WILL HIT 20 PSI - every time - without fail. Its not going to vary of change to 60 psi or 6 psi - it will hit 20 psi. This is the flash I offer through the mail for $199 and I have been testing it out on many evos and it never made more than 20 psi max.
IF the customer wants 21 - 22 - 23 or even 24 psi - THEN and ONLY THEN - he will need a boost pill modification which works in conjunction with revised boost solinoid mapping to achive the proper boost level. At this poing I offer the higher boost level flashes and hoses (which are for race gas users only) only on a custom tuned basis.
Don't twist my words and try and stir up unfounded and misleading assertions and fears about my product.
Originally Posted by jansolo
Then.
And now (from this response).
I am confused. Do you or do you not need to use a pill to control boost?
And now (from this response).
I am confused. Do you or do you not need to use a pill to control boost?
cool cool cool, so if we wanted to hit 20psi we dont need the boost tube fix. But if we want to hold boost of 20psi or more then we will need the tube fix.
By the way, is there a large fluctation in boost i.e will it spike first then settle down or will it say boost to 20psi and just hold. And the taper from 20psi to 17psi, is that mainly because of the sea level difference or something and the air is causing the fluctuation?
thanks
Nebo
By the way, is there a large fluctation in boost i.e will it spike first then settle down or will it say boost to 20psi and just hold. And the taper from 20psi to 17psi, is that mainly because of the sea level difference or something and the air is causing the fluctuation?
thanks
Nebo
Originally Posted by nebolic
cool cool cool, so if we wanted to hit 20psi we dont need the boost tube fix. But if we want to hold boost of 20psi or more then we will need the tube fix.
By the way, is there a large fluctation in boost i.e will it spike first then settle down or will it say boost to 20psi and just hold. And the taper from 20psi to 17psi, is that mainly because of the sea level difference or something and the air is causing the fluctuation?
thanks
Nebo
By the way, is there a large fluctation in boost i.e will it spike first then settle down or will it say boost to 20psi and just hold. And the taper from 20psi to 17psi, is that mainly because of the sea level difference or something and the air is causing the fluctuation?
thanks
Nebo
There is no fluxuation in boost - it hits the target and stays there - normal evo boost taper to red line of 1.5 - 2 psi as you reach the red line
A good option for those who want a simple, easy, painless modification. For ultimate control and power a MBC like the Hallman Pro is advised.
I did make 348 tq and 318 whp on a bone stock evo for SCCA racing with the boost hose mod and 24 psi BTW
Al, have you tried this on an MR? Since the MRs run 20.3 stock, I wonder if it is possible to take it to 21 psi. I plan on getting a flash in the near future, and would rather have the boost flash than the MBC.
Originally Posted by modvp
Is the MR (and 05) boost pill (slightly) larger than the 03/04; thus allowing it to reach a max boost target of 20.3 psi, as opposed to 19.5 for the 03/04's?


