V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 yeah that was no help to anyone.only thing i see doing is rails and putting the regulator up front, and making it return. the stock system the regulator is t'd into the system. pump is in the tank, and so is the regulator. but the regulator is t-d in around the fuel filter area under the car. I have hated the returnless system since they intro'd it. but see anthonys system is going to be different. since he has to raise boost pre psi intake pressure. we just need to get brian system to keep with the demand. to be honest, the pressure shouldn't move. brians regulator is the oe one. and his pressure drops right off after the key is off, and i know that not good. You know what... your right. I read last year that the oe regulator is suppose to keep fuel in the lines to be more environmentally friendly on start up. Quote Link to comment Share on other sites More sharing options...
Cordell Posted April 4, 2009 Report Share Posted April 4, 2009 I guess I don't understand what you mean by deadhead. It's a returnless system so it's "deadheaded" all the time. Could you explain exactly what these things do when they are at their limits? I just want a clear understanding. I'm just asking for general knowlage. There is no regulator in my tank, it's in line with the fuel feed on the fuel rail. Hence why I refered to it as deadheaded. That is a stock f-body, so where's the limit? Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted April 4, 2009 Report Share Posted April 4, 2009 So the pressure drops immediately when the key is off? Have you had any issues with restarts when the engine is warm? Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 I guess I could also go with a dual pump setup since I already have two walbros. Scott, what kind of fuel pump are you running? Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 So the pressure drops immediately when the key is off? Have you had any issues with restarts when the engine is warm? Nope it always starts right up. Last week it would only drop to 35 PSI... cycled the key this morning and it dropped to 0 quickly. Quote Link to comment Share on other sites More sharing options...
Cordell Posted April 4, 2009 Report Share Posted April 4, 2009 I guess I could also go with a dual pump setup since I already have two walbros. Scott, what kind of fuel pump are you running? Same thing you are, walbro 255 from racetronix with upgraded wiring harness. I don't a FP gauge hooked up like you do, so I don't know just what mine does all the time. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 fuck Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted April 4, 2009 Report Share Posted April 4, 2009 I think the regulator could be the issue. From the sounds of other symptoms, that seems to be it. That really is about the only other thing there is before putting in a fuel system. Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 Dana, you sure do know a lot about fuel systems LOL @ the ninja mod edit Quote Link to comment Share on other sites More sharing options...
Cordell Posted April 4, 2009 Report Share Posted April 4, 2009 Nope it always starts right up. Last week it would only drop to 35 PSI... cycled the key this morning and it dropped to 0 quickly. Is it dropping to 0 because the gauge looses power when you turn the key off? Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 Is it dropping to 0 because the gauge looses power when you turn the key off? Keys still on, car is just not running. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 Dana, you sure do know a lot about fuel systems LOL @ the ninja mod edit lol..i came back and didnt know i was on her screen name.. to bad i didnt copy and paste it right... Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted April 4, 2009 Report Share Posted April 4, 2009 Hmm compounding all the issues, this is making more sense. Brian, I declare shenanigans on your car. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 Is it dropping to 0 because the gauge looses power when you turn the key off? no...key on it comes up and it drops like a rock after the 2 second prime Quote Link to comment Share on other sites More sharing options...
Cordell Posted April 4, 2009 Report Share Posted April 4, 2009 no...key on it comes up and it drops like a rock after the 2 second prime Throw a regulator at it? Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 Hmm compounding all the issues, this is making more sense. Brian, I declare shenanigans on your car. Shananigans was declared on all GM vehicles in the late 80's. I missed the memo before I purchased my car Does anyone know what type of door handle fluid is good for race cars? Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 Throw a regulator at it? that what im saying try another regulator. and see what happens. if that dont do the trick id say its time for rails and a regulator up front. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 Shananigans was declared on all GM vehicles in the late 80's. I missed the memo before I purchased my car Does anyone know what type of door handle fluid is good for race cars? i tryed to tell you my theory on that just use blinker fluid Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted April 4, 2009 Author Report Share Posted April 4, 2009 lol..i came back and didnt know i was on her screen name.. to bad i didnt copy and paste it right... And the one person that saw it has only been working with cars for 3 years and has no clue what in the hell you were talking about. i tryed to tell you my theory on that just use blinker fluid Cool, Ill get some when I get arm rest oil and roll cage fluid next week. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 And the one person that saw it has only been working with cars for 3 years and has no clue what in the hell you were talking about. lol basiclly in a nut shell, i have figured out how to make it return style... using rails, reg, hose's. and modding the stock unit. and i like the idea of adding 2 pumps, and thinking more on that. it can be done Quote Link to comment Share on other sites More sharing options...
xlr8tn Posted April 4, 2009 Report Share Posted April 4, 2009 no...key on it comes up and it drops like a rock after the 2 second prime that's a sign the regulator is done.....it should hold that pressure. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 that's a sign the regulator is done.....it should hold that pressure. thats what im saying. hopefully, that fix's the issue alltogether Quote Link to comment Share on other sites More sharing options...
xlr8tn Posted April 4, 2009 Report Share Posted April 4, 2009 I also would check the hoses in the tank too. If those are cracked it'll let pressure bleed down also. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted April 4, 2009 Report Share Posted April 4, 2009 i did. it was replaced. Quote Link to comment Share on other sites More sharing options...
xlr8tn Posted April 4, 2009 Report Share Posted April 4, 2009 i did. it was replaced. I thought about that after I replied and if it was the hose most likely it would be a very slow bleed down....any sizeable crack probably wouldn't let the pump prime up to begin with. Quote Link to comment Share on other sites More sharing options...
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