I have an 01 Ultra with a 97" BB kit, street port heads (bigger valves, .600 lift beehive springs) with Woods TW5G cams. am installing an HPI converted intake (51mm) and was told I might be able to replace the fuel pressure regulator and injectors with VRod regulator and injectors to get a better flow rate. Anybody know if this will work or should I leave it at is? The dyno is showing 85 hp and 92 tq now with stock MM intake. hoping to get closer to 100/100 by changing to the converted intake but wondering if anyone has used the vrod parts on an HPI conversion.

 

Vrod injectors have a different spray pattern as they feed two valves.

 

That's what I was told. An old drag racer told me that's what he did to his own converted MM injection. said he bored his out to make it similar to the Delphi, the added the Vrod regulator and injectors and said it made a huge difference in how it ran. That's why I'm wondering if anyone else has tried it.

 

I am not real sure of the percentage, but I think Vrod injectors flow like 20% to 30%
more fuel then your original injectors. The regulator will add more pressure to those Vrod injectors, with your set up it should add more power no doubt.

 

Vrod injectors will direct the spray to the walls, which you don't want.