Project 600 WHP: Moore Performance-built twin-scroll 08 STI

[K3rm1tth3fr0g]

If you can find ID2ks they idle better than 2600s. But ID doesn't make them anymore.

Also look into running dual injectors. Radium and IAG both have kits for it.

My buddy's built G series G30 setup is likely going to be running ID1300s and ID1050s together on a compound rail that allows great idling and resolution on pump, and allll the flow up top for E85. But it aint cheap to setup or tune.

6870 will certainly be a dyno queen. No reason to put that big of a turbo on a car you plan to actually drive regularly. The 6466 will still blow the doors off of anything you encounter except perhaps the odd Model S Plaid, super-car, or hyper modded tuner car. 6466 will offer better drivability.

Regarding fueling I still think a double pump in tank setup is the safest and makes the most sense from a simple is better standpoint. Of course I don't want to lean the car out but I've seen tons of Subarus running the double pump setup at high hp.

A surge tank setup is safest strictly speaking.

Notice all the guys running double pump setups in this thread have to religiously keep enough fuel in the car to avoid starving? Only takes one slip up.

We made a fueling mistake once. It's an expensive lesson to learn. In our GD we switched to baffled and matted fuel cell with dual Bosche 044 pumps. It worked flawlessly, but was VERY expensive.

More recently we use the big OEM fuel pumps, they work great and have been rock solid reliable. It's a Hellcat pump with a Visconti Basket Upgrade, all E85 compatible. We've used this on a few cars without any issues. We do however outflow the 'jet-pump' in the tank so whenever there is dyno testing, mountain road blasting, or Auto-X, the tank gets topped off whenever the level drops below 1/2.

Since then I keep the car religiously above 1/4 tank

Surge tanks solve that.

Also don't get hung up on NEEDING the largest A/R, do your research, look at charts, talk to your tuner(s) about goals and application and then decide on a setup - bigger is not better especially in terms of how the car drives day to day.