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Ws6Store/RPMSpeed c5 filter/regulator upgrade for 98-02 fbodys

 
Old 06-07-2018, 05:54 PM
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Yes you will have have to remove the factory FPR from the fuel pump assembly and modify the bucket to run the larger pumps but good news the WS6store has you covered on this also. I ended up scraping the factory pump and and going with an aftermarket with twin 450s but currently only have one pump wired in. It's all throttle and no bottle for now and had planned on using the extra pump with a small NOS shot but now I'm leaning more to a dedicated system for the NOS. That is if I ever decide to run the juice!
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Old 06-09-2018, 01:42 PM
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Sometimes the higher pressure has been from kinked return tubes in the module.
The main issue is, there are about 15 different types of modules and sometimes the hole we recommend you put our nylon fuel return tube into can be a bit to small to fit the convoluted part into and when the module collapses inside the tank it can kink it. We will be editing the instructions to account for this. You can just clearance the hole a tad larger and it will slide in the hole then and point the return fuel down directly to the fuel sock.
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Old 06-21-2018, 03:36 PM
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We are upgrading all of our reg kits to the WIX fuel filter to alleviate any customer concerns/issues that they may or may not have. We listen to you guys and take the steps needed to get the best quality product out there.
The cost will increase but not by a whole bunch. we are swapping the WIX filter out in all of our on shelf boxed kits also.

That being said, we have personally seen no issue with the other filters we were using, but since a few had voiced some concern, we decided to change the kit up a little. There is no need to question your setup and give us a million calls to verify. If it was working good before, it will still be working fine after, so do not worry!

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Old 06-22-2018, 10:48 PM
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My car always starts on the 2nd try, never the first. I'm running a racetronix pump and hotwire with 280 bulkhead and ventri and I was just about to replace my stock fuel pressure regulator, venturi hose, and stock fuel filter with all stock parts but now after seeing this it seems like I should go this route. Are the WIX fuel filter versions in stock ready to ship?
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Old 06-22-2018, 11:24 PM
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Originally Posted by 5.7stroker View Post
My car always starts on the 2nd try, never the first. I'm running a racetronix pump and hotwire with 280 bulkhead and ventri and I was just about to replace my stock fuel pressure regulator, venturi hose, and stock fuel filter with all stock parts but now after seeing this it seems like I should go this route. Are the WIX fuel filter versions in stock ready to ship?
You might want to check your cam sensor. 2nd try starts are a symptom of bad cam sensors.
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Old 06-22-2018, 11:51 PM
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Originally Posted by G Atsma View Post
You might want to check your cam sensor. 2nd try starts are a symptom of bad cam sensors.
Can you pm me on cam sensor diagnosis? If there is continuity of the wire leading to the sensor, and then a resistance test on the sensor itself shows 2000-2500 ohms, can I assume the cam sensor is good or do I need an oscilloscope to observe the waveforms?
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Old 06-23-2018, 12:52 AM
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That is something for which I have no good answer. I just happen to know what I mentioned. Diagnostic procedures, not so much
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Old 06-23-2018, 11:59 PM
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Wix kits on hand ready to rumble
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Old 06-25-2018, 11:42 AM
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Default C5 filter

I just installed one of the c5 filter kits with the 340 pump and hot wire kit . Installation went great I had two problems first one was no biggie the wire for the fuel pump at the new connector or maybe the new pump to hat wires were backwards repined them all is well but I have 80 psi at the rails at idle . Any thoughts
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Old 06-25-2018, 12:09 PM
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Bad regulator, OR a restricted return line.
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Old 06-25-2018, 12:56 PM
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Not sure what brand the first one was but I got a wix and swapped it out .now it sits at 67-68 at idle which better than 80 I guess. still not sure how I feel about it it runs great fuel trims look good so far what do yall think

also the first one made a rather loud humming sound when you first turned the key and it primed the second one dosent make any sound

Last edited by ElevenSecZ; 06-25-2018 at 03:07 PM.
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Old 06-25-2018, 05:17 PM
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I would bet the first one was defective. Mainly the regulator section.
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Old 06-26-2018, 11:03 AM
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What is the part # for the WIX replacement filter. I haven't installed my C5 Kit yet, so might as well do it before I install.
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Old 06-26-2018, 11:07 AM
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Old 06-26-2018, 11:22 AM
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Originally Posted by [email protected] View Post
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Old 06-26-2018, 05:03 PM
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Will this filter/regulator work with the Walbro 525?
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Old 06-26-2018, 05:43 PM
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Originally Posted by FCar2000TA View Post
Will this filter/regulator work with the Walbro 525?
I believe a 525 is too much pump for the regulator. I'm running a 450 and it holds just over 60 psi but if it can be done it would be nice to know.
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Old 06-27-2018, 01:12 AM
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I would not use it with such a large setup. doing that youre shooting for more fuel flow and power than the stock lines will handle so youd want a better reg system anyway.
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Old 06-27-2018, 08:12 AM
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Originally Posted by [email protected] View Post
I would not use it with such a large setup. doing that youre shooting for more fuel flow and power than the stock lines will handle so youd want a better reg system anyway.
what is the biggest Walbro pump that can safely be run? 400? 450? 465?
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Old 06-28-2018, 07:08 PM
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Here is the deal with rated pump. All 400+ pumps arent rated at 58psi/13.5v. So you have to chart them. Most 420-450 do 350 to 375 at 58psi/13.5v. So i would still use them. A 465 seems a little too good to be true per se but id use an different setup at 800hp. Contrary to the internet you dont need a 450 or dual 450s etc for that either. You will need bigger lines though. Which negates the need for the c5 kit altogether.
Id stop at 400lph at 58psi/13.5v.
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