Don't really see why people get the zzp brfs because the return style is the same thing
Plus return style evenly distributes the fuel in the rail
Trying to set up my tvs 2.7 e85
Input please searched and got nothing

 

Bump

 

Not the same thing

 

ZZPerformance - Boost Reference Fuel Pressure System #ZZ-BRFPS

straight off their website. It CAN be used as a return fuel system, but there's other uses, as explained in their description.

 

can you explain
both use aftermarket boost referenced regulators
same concept i feel like the return style is better because it gives you a flow thru fuel rail
right?

 

Return systems have a little more in the tuning then a referenced non return. Ifrs and ect, offsets will be dependant on the flow you have as the basic flow .. some usually do 42-45.. its dependant on the car and Injectors. Basically larger injectors like the less psi for a idle and ect.. the higher psi tens to cause a lil issue with high impedance..

 

as a tuner what would you recommend on a 2.7 tvs set up with 80's on e85

 

I recommend running either return or returnless... But as it sits I'm doing a tvs fully built cammed ect lsj 1000cc with a referenced fuel system non return and full e85. And running a 12.3 afr and his idcs up top are 83-85%... So if your gonna run 80s and e, I recommend somthing higher in flow so you don't go static.

 

i was told by ottp that with a return style,walbro,and fuel pump rewire
that if i sent a base pressure of 58 psi FP that with 80's id be in the 65% idc range
true?

 

speaking from experience I ran a 2.7 tvs with 80's on E85 with the zzp Brfps and it worked just fine.

 

Yes, but your idle won't be as good as you want... You can run 80s and be fine but they will be close to being static.

 

damn im getting 80's with the tvs(got a sick deal) and dont wanna spend 450 on 1000's
hope with return/walbro ill make it

 

I'm running 1000s with brfps and its doing just fine. I'm on a 2.6 as well. I have the areomotive pump tho. I need to chang e that I think its dying on me already. Takes like 4 tries to start my car

 

^^ more then likely its Ure ethanol. Even if your tuned for it .. pssibly the blend changed where you got it so therefore you need to up startup fueling.

 

Statements about fuel distribution through the rail in reference to return or not, through the rail or not or even 4th cylinder lean conditions are all myths perpetuated by a lack of physics understanding.

 

Its the ethanol, but nothing to do with the tune. A lot of the Stealth pumps have been dying when combined with E85. I hadn't heard much on the subject until I started searching it out. Seems to be a very common problem though.

Winner.

 

The pumps die mainly due to what most call sludge, gel, jelly.. ethanol with the mixture of gas sometimes causes a jelly situation which causes issues for the pump...........

If a tune is say setup for winter gas or a lil before and has the fuel adders to give more startup fuel . But the fueling changes it can cause this as.well

..

 

keep hearing bad things with the areo pump
hows everyones walbro holding up

 

I've heard no complaints about the Aero pump when used with Pump gas. The issue seems to be when it is used with E85. It comes with an E85 warranty, but that is only for a one time replacement.

Walbro doesn't flow as much, but has been proven.

 

What type of jelly?

 

It seems that you don't realize that you can remove the stock regulator with our boost reference kit, and it drops the idle fuel pressure exactly the same as if you run the return line from the front. They are both return fuel systems.

 

Not gonna get into it with you again Matt. I know what I'm doing and yes i do remove the check valve thank you very much.. so thanks for your assumption..


BTW I took this off a site ..

Ethanol blends .. When ethanol is mixed with MTBE formulations, gunk builds up in the gas tank..

Water in the gas tank can cause similar problems.

Ethanol is a very unique component, It will grab onto water-based solubles. The alcohol grabs onto the sludge in the bottom of the tank and softens it. This sludge ends up clogging fuel filters.

Ethanol has an electric charge that attracts other polar molecules. Water sucks right into the fuel. Because water is heavier than gasoline, it collects at the bottom of the tank and turns into a gel. At about 0.5 percent water, this is called phase separation, and then that phase coagulates in cold weather.


There is more BTW...

 

Under vacuum what's the drop in fuel pressure in comparison to in of mercury

 

If you are not prepared to get into it with me, then don't talk about our products. It's as simple as that. If you know that you can drop the idle pressure down just the same with the zzp setup, then why did you say that you can't get the car to idle as good? I'd like to hear your reasoning behind that statement.

 

It's a 1:1 regulator.