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Fuel pressure regulator

 
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Old 01-23-2016, 04:36 PM
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Fuel pressure regulator

I was wondering if anybody has used the bbk 1706 adjustable fuel pressure reg or the accel 74561 adjustable fuel pressure reg on 89 460 and how you like it and ease of install.
 
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Old 01-23-2016, 04:54 PM
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The question is why use an adjustable FPR?
 
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Old 01-23-2016, 05:11 PM
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Changing fuel pressure regulator nothing difficult about it, couple of allen head screws hold it in place and two different sized O rings seal it, can't imagine an aftermarket would add a level of difficulty to that process.

Beyond that same question, why go to an adjustable regulator is your motor built beyond stock starving for fuel?
 
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Old 01-23-2016, 07:21 PM
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Originally Posted by danr1 View Post
Changing fuel pressure regulator nothing difficult about it, couple of allen head screws hold it in place and two different sized O rings seal it, can't imagine an aftermarket would add a level of difficulty to that process.

Beyond that same question, why go to an adjustable regulator is your motor built beyond stock starving for fuel?
Yes it's beyond stock and it is starving for fuel.runs really good then leans out.Just wondering for the ones that have used one how they liked it.I know there's or used to be people that used the bbk 1706 on their truck.

Installation of fuel reg pretty straightforward. Just really asking about the part for the 460 because they don't list it for the adjustable fpr ,but they list the list the same stock part #for the 302, 351,and 460
 
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Old 01-23-2016, 09:23 PM
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I have one on my 89 460. Was easy to install. I like the gauge screwed into it, makes adjustments easy. I've played around with different pressures and 45psi (vacuum hose disconnected) seems to be the sweet spot for me, YMMV. Tried 50psi but didn't seem to make a bit more power and mileage went down the tubes!
 
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Old 01-24-2016, 01:11 PM
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Originally Posted by eakermeld View Post

I have one on my 89 460. Was easy to install. I like the gauge screwed into it, makes adjustments easy. I've played around with different pressures and 45psi (vacuum hose disconnected) seems to be the sweet spot for me, YMMV. Tried 50psi but didn't seem to make a bit more power and mileage went down the tubes!
Nice I like the gauge being screwed into the fpr.I've been leaning towards the bbk I haven't found anything on the accel even though it's 30 dollars cheaper.
 
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Old 01-24-2016, 01:17 PM
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Originally Posted by danr1 View Post
Changing fuel pressure regulator nothing difficult about it, couple of allen head screws hold it in place and two different sized O rings seal it, can't imagine an aftermarket would add a level of difficulty to that process.

Beyond that same question, why go to an adjustable regulator is your motor built beyond stock starving for fuel?
I thought this was a standard mod that every 460 owner does for more power?
 
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Old 01-24-2016, 02:56 PM
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Originally Posted by westcoasting View Post
I thought this was a standard mod that every 460 owner does for more power?
I haven't done it to mine and its stock of course so no reason too.

All three use the same regulator work on the same fuel pressure, the differences come from the injectors, LBS fuel per hour rating, and then pulse rate/duration commanded by computer based on sensor input.

Last thing I want my 460 doing is running rich by attempting to force more fuel in than it requires!

And its not a race car its a truck.
 
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Old 01-25-2016, 12:48 PM
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Your truck should not lean out of fuel unless it is FAR FROM stock. Be careful about changing fuel pressure. The ECU uses a duty cycle for injecting fuel and that is based on a certain amount of pressure. More pressure means more fuel and if the ECU doesn't know about that, it can cause issues.
 
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Old 01-25-2016, 02:30 PM
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The O2 sensor will correct the fueling for the most part during cruise. Wide open will probably be more rich though.
 
 
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