Boost Referenced AFPR, different than FMU????
Thread Starter
Race Director
Joined: Feb 2002
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From: Honolulu, HI
Boost Referenced AFPR, different than FMU????
I keep seeing these terms used interchangeably.
If at idle the FP is static and at vacuum (WOT) the pressure is increased. How does this work on a boosted motor??? With a Boost Referenced AFPR right? Then where can I find a boost reference AFPR that's NOT an FMU???
If at idle the FP is static and at vacuum (WOT) the pressure is increased. How does this work on a boosted motor??? With a Boost Referenced AFPR right? Then where can I find a boost reference AFPR that's NOT an FMU???
Le Mans Master
Joined: Oct 1999
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Re: Boost Referenced AFPR, different than FMU???? (vvv90)
you dont have vacuum at WOT, you loose vacuum because the throttle blades are wide open.
At idle you DO have vacuum, so that is decresing the fuel pressure. If you looked at your fuel pressure at idle, and then unpluged the vacuum from the regulator, your fuel pressure will increase.
When you add boost, fuel pressure will increase with it.
http://www.aeromotiveinc.com/product...cat=Regulators
[Modified by bill mcdonald, 12:27 PM 7/2/2003]
At idle you DO have vacuum, so that is decresing the fuel pressure. If you looked at your fuel pressure at idle, and then unpluged the vacuum from the regulator, your fuel pressure will increase.
When you add boost, fuel pressure will increase with it.
http://www.aeromotiveinc.com/product...cat=Regulators
[Modified by bill mcdonald, 12:27 PM 7/2/2003]
Thread Starter
Race Director
Joined: Feb 2002
Posts: 11,268
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From: Honolulu, HI
Re: Boost Referenced AFPR, different than FMU???? (bill mcdonald)
:cheers: :cheers: :cheers:
Thanks. I just go done talking to a tech from Aeromotive and he set me straight too.
Thanks to Jeb too!
Thanks. I just go done talking to a tech from Aeromotive and he set me straight too.
Thanks to Jeb too!
