Pulsation Dampener issues with higher Fuel Pressure / Single !?
I ask, cause I am going to up the pressure, and have a new regulator, so the question is, with the increase and modification required to go single, is the stock FPD a good way to go !? Or does it need to get upgraded as well !?
I know there's a whole lot of argueing about if you need it or not, but I have all kinds of stuff on my FD that is possible that I don't need like the AST, and I'm not going to start removing things just because I can't see the wisom in it, I'm no fuel expert, so I leave that to them, I don't expect any of you to tell me about my field of expertise. So, is there a better FPD !? Like a GM one ? Like the map sensor, that can handle more pressure, or is the factory one fine, up to say 100 PSi !? BTW, I believe factory pressure @ idle is 38 psi !? and goes up a bit once WOT !? I have Stock Lines, Cosmo Pump, and plan on running 550 Pri. and 1680 Sec. if that helps... |
I'm not sure if the stock fpd is good or not. I know a fpd is recomended for small displacment engines with larger injectors.
-Destin |
I went with this one: http://www.injector.com/fueldampers.php
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im in the same boat... i just though that you eliminate the stock FPD when you upgrade the fuel injectors???
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u eliminate the stock FPD when u remove primary rail i believe
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But I'm not removing primary rail, primaries are most likely 850cc, secondaries 1680cc. With Aeromotive FPR...
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But what I meant was, was it easy to install, and have you noticed any difference, did you ever run without !? Have you seen consistant pressure, over someone else's setup ? -DC |
so if the fpd is on the primary rail, which i'm keeping stock with the 550's...... do i need to get an aftermarket one? i have the rx7store secondary rail / 1600's and an sx fpr
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Right now my set-up(in process) is a fuell cell with a Bosch in tank feeding a 1 litre surge tank w/-8 line, feed/return. From the surge, it is SX -10 filter/Aeromotive A1000/-10 to the front"Y" into two -6 to modified stock rails/-8(2) to the FPR and -8 return. injectors are 720/1680. I was told by both SX, and Aeromotive that the FPR has an FPD feature, and an additional FPD was redundant. Thoughts? Also, it seems most people w/surge tanks return to the Surge. to me this exacerbates the fuel heating problem. I am planing on returning to the cell instead. the only downside seems like you might not get the last teaspoon of fuel, other than that I see no problem. Comments? Carl |
Carl,
Good point about the fuel heating. I think the point of running the return to the surge tank is to help insure the surge tank stays full under all conditions. If your in-tank pump can keep up with the in-line pump and doesn't ever get starved, return to the fuel cell would be ok. Most people use a smaller capacity in-tank pump to supply the surge tank. Jack |
Originally Posted by Carl Byck
I was told by both SX, and Aeromotive that the FPR has an FPD feature, and an additional FPD was redundant.
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Originally Posted by adictd2b00st
so i should be ok with my setup then? as of now i just left the stock fpd how it was
Unless Carl can advise otherwise............? |
1. The surge tank is primarily for starvation prevention while cornering. It has the added advantage of helping to scavenge evey last drop of fuel. Drag racers often build a small well, or surge tank into the rear of their stock tank to prevent fuel starvation following launch. With a 1/3 of a tank or more you won't have a problem.
2. Since the pump supplying the surge tank is not operating against any pressure even a huge main pump will never outflow the small pump which is trying to push 60-80psi. Still would like to hear from Hedgehog... |
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