"Parmas" Motor

[rob323]

How are you increasing the fuel pressure in relation to boost pressure if you are not using an aftermarket fpr?

[Parmas]

Originally Posted by rob323

How are you increasing the fuel pressure in relation to boost pressure if you are not using an aftermarket fpr?

The stock regulator is capable of handle a good amount of fuel at 17psi max. When exceeding the 17psi then you need an aftermarket one (at least on the old yaris version)

[rob323]

But the stock reg can't increase the fuel pressure to compensate for boost as it doesn't reference manifold pressure. I don't have access to my manuals atm, what is the stock fuel pressure for an echo?

[Parmas]

Originally Posted by rob323

But the stock reg can't increase the fuel pressure to compensate for boost as it doesn't reference manifold pressure. I don't have access to my manuals atm, what is the stock fuel pressure for an echo?

Well when I began my project I was about sure I was in need of an aftermarket regulator. Infact I was going to order an RS5 cosworth regulator until my mech had news from somewhere abroad that the stock one can handle the setup of 1Bar boost. I don't know the exact details, all I know is that if I decide to increase boost, the regulator needs to be replaced aswell.