[2016SSimpson]

Originally Posted by KingLT1

how does your fueling look? How much boost? what fuel?


Solid so far, the low side is what seems to fall off 1st. Skid mark has a shop car making over 1k whp on his system and said his low side held the whole time. did mention the high side he's running ran out of steam in the 800's and had lt4 injectors, lobe, and the lpe pump. said they added meth to achieve the rest


If you guys would, please list your full fuel system, what type of fuel, and how much boost. This is all important information.

I am just the aux low side and injectors so far. I make upper 6's hp so far on e85. that may be all I do though. (stock bottom end)

Originally Posted by KingLT1

I thought it's referenced to fuel pressure.

Edit*

I am incorrect...it's referenced to boost. So yeah you might need the DSX for Nitrous.

yes it references boost but is adjustable, I was told by another guy that you can likely run these systems constantly as well since its a quality pump and shouldn't have any issues.

Originally Posted by Drsagacity

I probably have something twisted so please don’t flame me if this is stupid.

Won’t you be limited to how much fuel you can put in without increasing the cam fuel lobe? If I have a cam letting in 30% more fuel and am not running out of fuel on E...then I am not sure how a stock cam could push it to the edge? I am running 8psi now and am planning to move to 10psi, but want to dyno this setup first.

In fairness my local gas stations appear to have e85 that is really e70. . .so that may also be a factor.

you will absolutely run out of high side before the low side with an aux system will, even on a build high side. SMG's built high side was done at 8xx something on corn but his low side was still strong.

Originally Posted by Drsagacity

Makes sense.

I was told the cam should be considered part of the fuel system upgrade, but that will allow me to safely run 750whp.

I am surprised the fuel pump could make that much of a difference because if I see the numbers correctly on my setup we will run out of injector time before the in tank pump is out of room (running e at 750whp or race fuel north of 800whp). When does the HPFP run out of capacity? Based on ADM results, I assume the hpfp outlasts the low side. What about injectors? Like I said, I thought we would see them cap out before the lpfp...

Btw - no argument from me, just trying to understand because there seems to be so much conflicting information out there, I love to understand what is real.

you'll be safe to 7xx+ on fuel, but will your internals?