I'd like to see the amp numbers. Do you have them vs psi for each setup?

 

For Us IX owners, what WHP can we sfaely make on the stock fuel pump? Is ti safe and reliable to do Stage 1 stuff such as a Turbo Back, Inatake, 23PSI tapering without a fuel pump?

As always excelent work Martin and I refuse to deal with any major Parts besides AMS from now on.

 

Proper !! you guys dont play around!

 

i still maintain you guys are comparign apples and oranges.

comparing flow and pressure is just like tryign to compare Volage and Current.

although related, they are apples and oranges.

im gona go with doubleugly, only because i think evolved is confused about the terminology. Either that or just as i have seen so many times with in military training. A vital detail was left out of his education of the c130 system, because it "wasnt his department"

 

Well I'm glad you know what I know...here's an idea, why don't you tell me how to do my job, better yet you can do it for me since I'm apparantly unqualified to work on 14 million dollar aircraft in your eyes.

Now to teach you something noob, flow and pressure are related. Go to google and type in Bernoulli's Principle and do some reading.

 

The biggest problem with everything you've been saying is that you are making the assumption that two SIMILAR systems will behave the same. Your arguments seem to be based around pumps providing pressure without regards to flow. A fuel pressure regulator adjusts fuel pressure by allowing a certain amount of flow to return back to the tank. With a two pump system the regulator opens more to provide the same pressure which results in more flow. If a given pump provides a certain flow rate at a certain pressure it will provide exactly that flow rate. The only time one of the pumps would not pump at all is if the fuel pressure is set at or above the pressure at which that pump drops to zero flow (i.e. 80 psi for a stock VIII pump).

-Paul

 

AMS,

Can you provide the answers to these questions?

Specifically, the results for your 12V testing or any other voltage that you tested.


Thanks,
Eric

 

http://www.rockvalleyoil.com/Calibration_Fluids.htm
It's the 16b calibration fluid, it mimics gasoline.

SG @20deg C = .7833
VIS @20deg C - 1.180

I have the 12V results and I have to graph them still. I'm going to make some new graphs in general to make it easier to for everyone to read. We're also getting a flow meter (+- 1% accuracy) the next few days to make this whole process much easier. Flow meters aren't cheap but it' going to save so much time in testing. Please keep this in mind when we're doing this. This is costing us quite a bit of time and money to get this information out to everyone.

 

with the meter will there be a supra pump test?

 

Thanks for the reply.

I appreciate your testing as I'm sure many others do. It's unbiased testing like this that truly helps the community.

I am just very interested in the IX 12 V numbers, because the 14V numbers show that an upgraded pump will not be necessary for the stock turbo. But, we will probably not see 14V at the pump. So, I wanted to calculate the 12 V numbers to see how many lb/min of airflow it could support.

It would be nice to just upgrade to a IX pump instead of the Walbro if staying on stock turbo (~43lb/min max airflow).


Eric

 

We have run cars with stage 1-3 on the stock pump with no issues. From what we have seen Fuel pressure is fine on the stock turbo on pump gas.

Eric

 

at what point would you say the limit of the 255 is?

I guess I am trying to figure out what is ideal as far as pump flow at a certain amount of boost?

 

If someone sends me a supra fuel pump!

 

someone please send it to him hahaha or i guess i could but it's hooked up to my fullblown housing...

 

pretty interesting stuff