Originally Posted by
Hemituna
BTW. I used to try and hold off shutting the bypass but now do it differently.
If you get the bypass closed earlier (0 kpa or sooner), the TB is not yet as open, less air is being fed to blower and it makes the transition easier to control.
If you try to hold off on closing it, the blower tends to come on in a rush as it is pumping/bypassing more air and suddenly all that bypassed air now gets to the engine.
I have found the standard bypass set ups on the blowers now seem to work flawlessly, no restrictors, no heavier/lighter springs etc.
If you are running a lot of boost and you now get too much power too soon...you can always trim down power/rpm or DD or even NV etc.
This usually needs to be done as everyone has generally dialled these up, but now you will have more power/boost available, they may need to come back.