Posted By: all spooled up
boost reference fuel pressure regulators ????????????* *DELETED* *DELETED* - 08/11/13 10:00 PM
Post deleted by itsallgood
boost reference fuel pressure regulators ????????????* *DELETED* *DELETED*
Posted By: Crizila
Re: boost reference fuel pressure regulators ???????????? - 08/11/13 10:04 PM
Look at the fuel press gauge. It should be reading boost plus what ever you set the fuel pressure at at idle ( no boost ). I have used an in car camera so I can see the boost gauge and fuel pressure gauge at the same time.
Posted By: Crizila
Re: boost reference fuel pressure regulators ???????????? - 08/11/13 10:10 PM
Another way to do it is make a pass and look at the boost gauge going through the lights. Make another pass and look at the fuel press gauge going through the lights. If you are running 15 lbs of boost and you set the fuel press a 7 lbs at idle, your fuel pressure gauge should be reading 22 lbs going through the lights. Make sure your boost reference line is large enough. Think I use a -4 line.
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? *DELETED* - 08/11/13 10:22 PM
Post deleted by itsallgood
Posted By: MR_P_BODY
Re: boost reference fuel pressure regulators ???????????? - 08/11/13 10:31 PM
Quote:
on the trans brake i here the turbos wine but the fuel pressure stays the same and the car shuts off
You have issues then... make sure of the line going
to the regulator is working... all its doing is supplying
pressure on the back of the diaphragm to assist the spring
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? *DELETED* - 08/11/13 10:51 PM
Post deleted by itsallgood
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 01:22 AM
this time with the line off the carb hat fuel pump on blow some compressed air bye the line fuel pressure raised up 10 # so it sounds like it works vacumn lines to small 
Posted By: MR_P_BODY
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 01:33 AM
Quote:
this time with the line off the carb hat fuel pump on blow some compressed air bye the line fuel pressure raised up 10 # so it sounds like it works vacumn lines to small
Even a small line should react.. just slower to respond
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 02:16 AM
ok thanks
Posted By: TRENDZ
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 03:37 AM
What is the source of boost to the regulator? Is it above the throtlle plates or below?
Posted By: ahy
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 04:05 AM
Quote:
What is the source of boost to the regulator? Is it above the throtlle plates or below?
The boost reference should be what the injectors are seeing inside the manifold (assuming they are in the manifold). Manifold pressure - below the throttle plates.
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 01:18 PM
Quote:
What is the source of boost to the regulator? Is it above the throtlle plates or below?
the source is above the tp off the carb hat like crizila posted pic
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 01:20 PM
Quote:this is a blow thu carb setupQuote:
What is the source of boost to the regulator? Is it above the throtlle plates or below?
The boost reference should be what the injectors are seeing inside the manifold (assuming they are in the manifold). Manifold pressure - below the throttle plates.
Posted By: 67_Satellite
Re: boost reference fuel pressure regulators ???????????? - 08/12/13 05:17 PM
In the hat, above the throttle blades. Go to youtube,fuel pressure on the left. http://www.youtube.com/watch?v=BVlmtgYb72U
Posted By: ahy
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 01:40 AM
Quote:Quote:
What is the source of boost to the regulator? Is it above the throtlle plates or below?
The boost reference should be what the injectors are seeing inside the manifold (assuming they are in the manifold). Manifold pressure - below the throttle plates.
Carb application... I assumed FI. Comment above not applicable!
Posted By: dizuster
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 01:49 PM
You said that you can "hear" the turbos on the trans brake, but is it making boost?
My turbo will make LOTS of noise well before I actually see the boost gauge move.
My turbo will make LOTS of noise well before I actually see the boost gauge move.
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 02:56 PM
canot get in to boost on the t brake just as the gauge gets to about o boost the car dies.
Posted By: dizuster
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 05:20 PM
It sounds to me like somethting else is wrong besides the regulator. Even if the fuel pressure regulator wasn't working, you will still get some fuel flow to the bowls even if the regulator doesn't increase with boost. It would still have nearly full fuel flow at 0psi of boost.
Do you have an A/F meter on it? Does it go fat or lean? Is it possible the spark table is screwed up causing it to do something funny when it gets to 0psi?
Are you stomping the pedal on the brake and it dies, or are you easing into it and it dies? If I stomp mine, it bogs and doesn't really recover at all, I need to foot brake it a little before getting on the brake.
Do you have an A/F meter on it? Does it go fat or lean? Is it possible the spark table is screwed up causing it to do something funny when it gets to 0psi?
Are you stomping the pedal on the brake and it dies, or are you easing into it and it dies? If I stomp mine, it bogs and doesn't really recover at all, I need to foot brake it a little before getting on the brake.
Posted By: furious70
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 07:03 PM
Quote:
You said that you can "hear" the turbos on the trans brake, but is it making boost?
My turbo will make LOTS of noise well before I actually see the boost gauge move.
x2 on that. Mine sounds like a jet on the tarmac before the gauge dips into boost, if you didn't have the gauge you'd swear it was boosting.
I'm EFI, but I have a tiny vac line behind the throttle blades for mine and it idles down the fuel psi under vac and goes 1:1 up when into boost. The reference line size wasn't an issue for me at least. I temporarily removed my under hood gauge and put it on the end of the 3' braided line tucked under my wiper arm to verify things were kosher.
Posted By: Crizila
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 07:54 PM
Quote:A little bit different with a blower. Boost is immediate. Fuel pressure rise better be immediate - along with your water injection if it is signaled by boost pressure. Same thing on the other end with your dump valve. It better open as soon as the throttle blades close.Quote:
You said that you can "hear" the turbos on the trans brake, but is it making boost?
My turbo will make LOTS of noise well before I actually see the boost gauge move.
x2 on that. Mine sounds like a jet on the tarmac before the gauge dips into boost, if you didn't have the gauge you'd swear it was boosting.
I'm EFI, but I have a tiny vac line behind the throttle blades for mine and it idles down the fuel psi under vac and goes 1:1 up when into boost. The reference line size wasn't an issue for me at least. I temporarily removed my under hood gauge and put it on the end of the 3' braided line tucked under my wiper arm to verify things were kosher.
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 09:31 PM
Quote:
It sounds to me like somethting else is wrong besides the regulator. Even if the fuel pressure regulator wasn't working, you will still get some fuel flow to the bowls even if the regulator doesn't increase with boost. It would still have nearly full fuel flow at 0psi of boost.
Do you have an A/F meter on it? ' innovate motorsports lc-1
Does it go fat or lean? ' 11.2 ' Is it possible the spark table is screwed up causing it to do something funny when it gets to 0psi?
Are you stomping the pedal on the brake and it dies, or are you easing into it and it dies? If I stomp mine, it bogs and doesn't really recover at all, I need to foot brake it a little before getting on the brake.
if i jam it to the floor on the t brake it dies afr 11.2
if i eas in to it on the t brake turbos spooling afr 12.5 let off car dies
Posted By: dizuster
Re: boost reference fuel pressure regulators ???????????? - 08/13/13 10:31 PM
What carb is on it? Does it have a boost reference power valve? Is this a new combo, or something that just started happening all of the sudden?
When you ease into it on the transbrake do you actually see boost on the gauge?
Does the fuel pressure gauge move if you're seeing boost?
When you ease into it on the transbrake do you actually see boost on the gauge?
Does the fuel pressure gauge move if you're seeing boost?
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/14/13 01:22 AM
Quote:
What carb is on it? quick fuel ban 650 Does it have a boost reference power valve? no Is this a new combo, yes or something that just started happening all of the sudden?
When you ease into it on the transbrake do you actually see boost on the gauge? at idle gauge is 16 in of vacum on the brake o vacum 0 boost Does the fuel pressure gauge move if you're seeing boost? i have never seen boost
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/16/13 01:03 AM
i just riped off all the turbos intercooler piping wastegates blow off valve carb hat ext im done with turbos 
Posted By: SLOW67
Re: boost reference fuel pressure regulators ???????????? - 08/16/13 02:42 AM
Dang man don't get discouraged it's not an easy thing going from N/A to turbo...ask me how I know lol
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/16/13 02:55 AM
Quote:thanks did you spray the valiant if so howd it do
Dang man don't get discouraged it's not an easy thing going from N/A to turbo...ask me how I know lol
Posted By: Raymond
Re: boost reference fuel pressure regulators ???????????? - 08/23/13 01:02 AM
boost ref.line should be off the hat.line
size makes no difference.remember a trans brake will
not increase stall speed.if you dont have enough stall
you wont make boost on the t.b.
size makes no difference.remember a trans brake will
not increase stall speed.if you dont have enough stall
you wont make boost on the t.b.
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/23/13 01:11 AM
waste gate problems i found so i will put it all back together
Posted By: 340RICK
Re: boost reference fuel pressure regulators ???????????? - 08/23/13 09:52 PM
Glad you are not giving up on it
Posted By: Crizila
Re: boost reference fuel pressure regulators ???????????? - 08/23/13 10:26 PM
I think he just wants this thread to die. 
Posted By: all spooled up
Re: boost reference fuel pressure regulators ???????????? - 08/23/13 11:35 PM
no i found the fpr was workin but i just had no boost 
o bye the way love that chry 300
o bye the way love that chry 300
Posted By: Crizila
Re: boost reference fuel pressure regulators ???????????? - 08/24/13 03:48 AM
Quote:
no i found the fpr was workin but i just had no boost
o bye the way love that chry 300
