Injector question?
Thread Starter
Instructor
Joined: Nov 2017
Posts: 174
Likes: 1
Injector question?
Is it required to have an adjustable fuel pressure regulator with 22lb Bosch 3s on a stock 91 L98? Or can I keep the stock fuel pressure regulator?
Last edited by JBJrC4; Jun 13, 2018 at 11:07 AM.
Team Owner
Joined: Jul 2004
Posts: 28,372
Likes: 3,259
From: Hartford WI
Unless you run out of injector and have the ECM tuned for it, I would just stick to the stock regulator. I heard the theories of better atomization with higher pressure but I am not aware of tests that prove the gains are significant under street conditions. Sure, if you were racing for a living, I'd push anything that gets me a thousandths of a second.
Thread Starter
Instructor
Joined: Nov 2017
Posts: 174
Likes: 1
Unless you run out of injector and have the ECM tuned for it, I would just stick to the stock regulator. I heard the theories of better atomization with higher pressure but I am not aware of tests that prove the gains are significant under street conditions. Sure, if you were racing for a living, I'd push anything that gets me a thousandths of a second.
Team Owner
Joined: Jul 2004
Posts: 28,372
Likes: 3,259
From: Hartford WI
You could but I'd change it just to be sure. The rubber diaphragm is old.
