so how does one go about reducing boost on a package that does not have variable boost?

 

It is a matter of adjusting the wastegates.

 

scrub your mit.

 

Since I'm married, I do that almost every night......I don't see any HP increase though........my hand just gets sore.

 

Now that made me laugh...thanks!

 

Can someone provide a little more detailed instruction on how to do this? If this can be done fairly quickly, then isn't this a form of 'variable boost'?

 

well thats what a EBC( electronic boost controller does)... except that u have at ur fingertips... whereas the WGs are underneath the car... u need 2 10 mm wrenches... a marker to point how much u have turned the screw.
However, if u exceed the limits of a WG spring... no matter how much one turns up the Wgs... u still will read the same boost.
I tried this 100 times and experimented with 3 boost controllers... one manual for that matter... I ended up spending more time under the car then on top of my wife .. NOT GOOD

 

One more question - can one put an EBC independent of the program running on the car? I know Protomotive tuning uses an EBC, but can you put an EBC on a car running an EVOMS program and will it work.

I am also assuming that turning down the waste gates will work for any car (regardless of the flash program running).

 

Well u can put it on but the ecu will still control it.... it will be fighting against it... TB will shut down sometimes...
I used it on a GIAC and on a FVD ECU but after all said and done.. waste of time.... Im sure sharky know well casue he has experimented alot as well.
the ecu has to rewritten. I of a tuner that does it this way too.

 

Is this still a concern if you are trying to turn it down? The OP is running 1.5 bar so what if he wanted to take it down to 1.2 - will the ECU still fight with the EBC?

 

I was somewhat successful doing that... but there are other variables involved... like WGs.... if the spring is too strong... and I have seen some upgrade kits hitting 1.5 bars.... then no matter what u do u can turn it down cause the spring is too still. this is the exact opposite of a stock WGs spring being too soft and one can not go past, lets say 1.1 bars because hes on a 6 psi spring...

 

So within a small range, a stiff WG spring can still be controlled by the EBC without any program changes? Just curious if some folks with EVOMS programming has tried this? For example, 1.2 bar on pump fuel, and then 1.4 bar on 101 octane?

.1 bar of boost is a fairly major increase in HP so even just being able to control a small range of boost (1.2 bar to 1.4 bar) may prove beneficial. May also help be more conservative on the engine during times when you don't need full boost .

 

that was my goal... I spent a whole year experimenting.. changing Wgs... EBCs, and I still had the TB shut down... then I was fortunate to have the diode installed... but then I was running 1.5 bars and couldnt controll it down... why? casue I was on the upgraded springs.. it became such a pain in the butt that I gave up. then I installed a $35 manual boost controller just to keep the boost under 1.5 bars... it basically worked as a bleeder valve...
kinda worked but very primitive...

 

i hope we're not boring people...but how does the ECU control boost if the physical limitation, i.e. stiff waste gate springs are there?

In another thread, Kevin of UMW indicated that UMW programming controls the boost without using an external EBC. I don't know much about how the stock ECU works, but is the ECU able to control the wastegates in another manner? If the spring is too stiff, then it's too stiff for any form of control right?

 

thats why a TOTAL package needs to be put together... instead of just some stiffer springs and a ECB, etc....
Yes kevin has a way, but thats becasue the turbos and the springs all come form him... hes able to make it all work. But I dont think u can change the boost liek u can via EBC...