Evo X upgrades

[Kracka]

I am very glad I have no intentions to touch or modify my fuel system at all. It really seems to be one of the big weak points of the X.

[mlomker]

I am very glad I have no intentions to touch or modify my fuel system at all. It really seems to be one of the big weak points of the X.

The stock hanger can have the issue on road courses but I've never heard of anyone running into the left-turn starvation problem on the street.

My car seems to run fine on a sedate drive but if I take a scheides-style run to Surly then I have the problems.

[scheides]

When I stoped and paused for a moment (while waiting to exit the parking lot), I saw the knockCEL indicator flash.

This doesn't quite make sense, you saw the CEL? Or when you were accelerating to leave the lot? THe KnockCEL will NOT flash unless you are over a certain load point, 120 is the default IIRC (this would be equivelant of part throttle acceleration with maybe 5psi or so of boost).

I would consider taking the Full Blown kit out and putting in a stock hanger with a single pump or maybe putting in murlo's stock-hanger double pump hanger and see what happens. The latter seems the easiest to me (bribe him with beer)!

[Murlo26]

I told him to do that long ago :)

Ps. I love beer...but I love rum more !


Regardless, since you are doing road racing, if I were you I would probably see if FB can work up a surge tank double pump setup using parts you already have. The Double pump in tank is great for straight line, but road racing, you will still need to keep you tank above 1/2 to be sure.

[Kracka]

Maybe it's time to stop messing with all these unproven setups that in theory are great, but still remain mostly untested. Why not run an AMS fuel setup that's worked well for their high-power road race cars? It's time to get this thing on the road! Use next winter for more prototype testing.

[Murlo26]

AMS doesn't sell their surge tank setup for the X's like the one Gates is using, which is lame.

They just have an inline pump setup which be enough for E85 might not be.

[mlomker]

This doesn't quite make sense, you saw the CEL?

Don't pretend to understand that. I paused for a moment at the exit for the parking lot and then applied some gas in 1st gear to pull into the street and I saw it blinking. The car was either not rolling yet or just starting to roll when I saw it.

The latter seems the easiest to me (bribe him with beer)!

He has a progressive double pump (BlaqOPs modified hanger). It's not stock. I'd have to either block off his progressive pump or reinstall the progressive controller on my car. No matter what it'd be a few hours of work and I'd have to have Shane re-check the fueling afterward or I couldn't be sure that it was safe.

I'm getting the feeling that there isn't a long-term solution that doesn't involve a surge tank, whether it gets filled up by the FB or stock hanger.

AMS doesn't sell their surge tank setup for the X's like the one Gates is using, which is lame.

That's the problem, just like for our intake...they are custom and not for sale. Relatively few companies sell surge tank setups because they're tough to make street legal for crash reasons (the law seems to consider the trunk to be the 'passenger compartment').

Their inline 270lph setup would work but it's only good for the power level that I'm currently running (420-430@DB). You get past a single pump and the complexity gets pretty ugly.

[Murlo26]

Don't pretend to understand that. I paused for a moment at the exit for the parking lot and then applied some gas in 1st gear to pull into the street and I saw it blinking. The car was either not rolling yet or just starting to roll when I saw it.



He has a progressive double pump (BlaqOPs modified hanger). It's not stock. I'd have to either block off his progressive pump or reinstall the progressive controller on my car. No matter what it'd be a few hours of work and I'd have to have Shane re-check the fueling afterward or I couldn't be sure that it was safe.

I'm getting the feeling that there isn't a long-term solution that doesn't involve a surge tank, whether it gets filled up by the FB or stock hanger.

Well the shitty part is there is no reason to use two pumps to fill a surge tank, haha.

So maybe take one of those pumps off the double pumper and use it on the surge tank and buy yet another 255 and put two in parallel after the surge tank! Oh boy, this could get ugly :)

Better yet...trade your full blown hangar for a stock one with stock pump. Then get a surge tank setup with a 255 on the surge tank and a boost a pump on the 255, that is win!

That is what I have been thinking of doing eventually if I start to have problems.

[mlomker]

That is what I have been thinking of doing eventually if I start to have problems.

Well, I'm glad I'm saving you a lot of money. :P This has been suckage for me.

The reason I might keep the FB hanger in the setup is because it has nice AN fittings vs the stocker being plastic. It'd be a single pump in that hanger and then you'd need an external pump (or two) off the surge tank. I'm not sure if a dual external there or a single big pump, like the Fuel Labs models would be the best choice.

http://www.fullblownmotorsports.net/product_info.php/products_id/94

[Kracka]

You guys ever talk to Goofygrin? He is a local down here who was running a E85 X with a surgetank.