Ihave a few questions regaurding fuel pressure and the regulator. First off I am currently running a stock GM regulator on a 3.1 SFI. What should the pressure be at idle and should the pressure rise as I go from vacum to boost. Then, just to double check the regulator should be on the return side. Now what I am trying to accomplish is raise the pressre from 43lbs to 70 lbs, What I have is an inline vacum activated ajustable regulator that I want to put inline after the stock regulator pump both to 8 lbs then adjust the pressure to 70 lbs. Any thoughts ? Will this work ?
Thanks
blatzy
Fuel Pressure Regulator Questions
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
-
devastator
- Experienced Squirter
- Posts: 333
- Joined: Mon Feb 11, 2008 10:19 am
- Location: Kinda near Tucson Arizona
I'm not sure I can help you any here but here goes:
You should have the fuel pressure increase as you build boost, usually raising 1:1 with the boost pressure. This keeps the relative pressure the same on both sides of the injector. As far as running 2 regulators, I don't understand this, nor do I think it would work as the lower regulator will override the higher. Yes, the FPR goes on the return side of the fuel rail. 8psi...really??
Just my 2c.
You should have the fuel pressure increase as you build boost, usually raising 1:1 with the boost pressure. This keeps the relative pressure the same on both sides of the injector. As far as running 2 regulators, I don't understand this, nor do I think it would work as the lower regulator will override the higher. Yes, the FPR goes on the return side of the fuel rail. 8psi...really??
Just my 2c.
Sandrail-ACVW 2276 cc, Turbo
MS-II W/spark burning E85
The sand must be punished.
MS-II W/spark burning E85
The sand must be punished.
-
Minami Kotaro
- Helpful Squirter
- Posts: 48
- Joined: Sun Sep 12, 2004 3:41 pm
- Location: Somewhere in TN