Hi guys, how much rwhp can I get out of the 1000cc injectors on a good day ??

Thanks

 

whats your hp goals?

 

As much as I can, just trying to find out the max capacity of them

 

that doesnt really say much... whats your setup?

 

So, does anyone know the max flow of them, and from that can anyone calculate how much HP they should be able to handle. My set-up doesn't matter, but lets say I have 2 GT3582 and looking for 1000 rwhp, how close would I get

Thanks

 

hope you reach your goals bud...

 

I know I won't reach that with these injectors, I just want to find how high they could go, not what I would get on the engine I have or currently building. For the 300ZX I found an application online in some forum before where you could put in you HP goals and it told you how much flow was needed and how many CC your injectors needed to be. That is what I'm trying to find out here

 

heres a few:

http://www.gtsparkplugs.com/InjectorSizeCalc.html

http://www.witchhunter.com/injectorcalc1.php4

http://www.rceng.com/technical.aspx

http://www.injectordynamics.com/hors...alculator.html

 

Thanks man, that was a huge help, no need to ask much, guess I wasn't searching well :|
What type of flow could I go up to and what is it depending on, is rails, hoses pump or what else ??

 

all the above. basically anything that the fuel in your car comes in contact with. From the pumps to the injectors.

 

So how high could I get the fuel pressure, I have seen at least 52 psi at idle, can it be increased as rpms increase a bit or ?? I have several options for rails and pumps, from AAM to CJM, AAM's big pump and CJM's double pump, will the CJM pump flow enough for 1000 rwhp, if not I also have a Fuellab's pump that can hold 1300 hp

Thanks again

 

most all the pumps for our cars start to fall on their faces around 70ish psi and seeing as how if your FI its a 1:1 boost:Fuel Pressure I'd say thats about it. But again it all depends on what your puttin on the car, if its some bunk azz fuel system I dont know that I'd trust it to 70 psi... and the CJM twin pump wont suppost 1000 rwhp, the most I've heard, and someone correct me if i'm wrong, is about 850ish rwhp.

 

the twin pump will def support over 1000whp on C16/Q16. XKR made 816DD and 1006DJ. I was 898DD so probably closer to 1050DJ. I think XKR was on HKS1000s while I was on PTE1200s. My IDC was pretty low, so I think I could string the HKS 1000s out at the same power.

 

Thanks for that, when did XKR move to the ID2000 ?? and what kind of fuel pressure are you or did you run and is it liner or adjusted up with higher boost or rpms. I know I should read up more about this, but for right now I'm just checking to see if I should sell my HKS1000 and get something bigger or if the can take me close to my final goals for now and get some bigger down the road, as I know it will be a pretty long road to reach 1000 rwhp if I ever will get there.

 

i wouldnt plan on exceeding 800-900rwhp with 1000cc injectors. with gasoline, much less with E85. they can cap off lower or higher depending on your fuel pressure setting, how efficiently you burn the fuel you inject, etc. you have to consider major additions to parasitic drag when using superchargers. you dont want to plan on running insanely high fuel pressure just to get more out of the injectors, because then you are limiting the flow of your fuel pump by increasing its load.

as for fuel pressure curves, they come in 2 standard forms. 1, constant pressure, meaning the rail pressure never changes until it drops as you run out of fuel pump. 2, 1:1 ratio, meaning that the fuel pressure differential between the rail and the intake manifold is a constant... for every psi of boost, fuel pressure goes up 1 psi, same with vacuum, etc. thats pretty much the only normal ways it works. there are also rising rate regulators that you can adjust the ratio, but those are not for high boosting 1000hp cars or cars with properly sized fuel injectors so we can ignore that.

our twin walbro 255 setup will surpass 1000hp gasoline, no problem... with a decent margin.

 

Thanks Charles, so I guess I should be able to reach about 800 rwhp then, is that a fare assumption ?? And what type of fuel system would you recommend. I have your rails and pump and will make some custom lines. What pressure should I start at ?? and if I want 1000 rwhp one day, what injectors do you guys recommend especially if I want racelogic or some other system like that

Also, maybe I should start a new thread about this later, but has anyone tried with dual injectors per cylinder and would there be a benefit with that over larger injectors, lets say 2x1000cc over 1x2000cc. I know it would take some fabrication to have it made, but I can have that made, and how about the EMS can Haltech or some system handle that. I think I read a long time ago that they could

Thanks again everyone

 

im sure 800 will be a safe assumption. most people are around mid 40's base pressure. just plumb both the pumps into an external filter and then up to the rails. you can upgrade your injectors to 1200cc some day or larger if you need it.

you dont want dual injectors.. thats just a ton of mess for no reason really. i dont think it would fit well done in a VQ.

 

Thanks again Charles, I guess I don't need to think about that anymore then

So about 45 as base, and then if I run 25 psi boost I would get 70 psi fuel or did I misunderstand that ?? Should I run each pump to separate filter and rail or ?? what is better. So 1200 or 1600cc injectors for later or maybe straight to ID2000. Who makes some really good ones or recommended ones ??

Thanks

 

Why didn't you just buy the stage 3 kit if you already have the rails and pump? That would just be easier. You could run 2 filters if you like but that's not needed. 2 6an into an 8 an pressure line with an inline filter. Y adapter up at the rails back down to 2 6an lines with 1 line to each rail.

I'm not try to offend or flame but I need to ask. What is your skill level on this stuff? The questions you ask make it sound like this stuff is way over your head and building a fuel system or 800hp car is going to be a nightmare. Don't take that the wrong way but if you're building an 800hp car and don't know what a 1:1 rising rate return fuel system is you need to do a lot of studying on car stuff.

And for large injectors ID is probably the best route. If you are using racelogic for the traction control you will need high impedance injectors. ID is the only company that makes very large high impedance injectors so that would be my suggestion.

 

This thread has all the signs of being a dreamer thread, and no one called it!!