Does that fuel pressure regulator make the difference when you open up the throttle? or it is just to make sure the fuel flow? thanks.
No.
An adjustable fuel pressure regulator would really only come in to play with a modified engine, fine tuning for track purposes, performance modified engine.
For me it was more of a bling accessory, the gauge needle that moves when the engine is started , fluctuates slightly when engine is under load.
The pressure can be adjusted via the pressure screw on the top and lock nut.
From memory, standard fuel pressure is 36PSI (3.5 bars on this regulator )
This regulator is well known for its small size but very large internal diaphragm.
More attractive that the factory original, adjustable for a better price.
I have since mounted the regulator vertical.
There just was not enough clearance on the regulators side outlet to mount a right angle hose push on connector.
So I've used it on the bottom.
Frame is currently under CAD ( cardboard aided design ) while I work out the seat pan, battery box and electrics position.
Weather has been very bad here in Auckland for the last three weeks, so progress has halted until it warms up.
The cold weather was effecting paintwork and causing blooming before I could rush them inside to my wife's Bosch paint bake over 😄
" It's what Bosch would have wanted" I told her