ajusa.com

The technology is here now to build the 3.5 ecoboost engine how you want. It is not cheap.

bubbabud

You could put the turbos from a locomotive engine on it but untill you can program the ECM to allow more boost pressure and fuel to match all your going to get is turbo lag. The little bittey teeny weeny turbos it has now will supply more boost than the engine can use. Bubbabud

gimmie11s

Agree on the fuel account but getting more boost pressure is not a problem (although probably not worth much on stock turbos)...... the fuel is the problem.

Just for arguments sake if someone were to install larger turbos the ECU wouldnt be able to do a damn thing about boost pressure.... again... Fueling like i said, would be the prob.

This isnt to say the ECU wouldnt try to intervene and throw DTCs and all that good stuff because it would... and the extra boost would, in effect, be worthless..... but could certainly be produced none the less.

jbakecpa

Coming from the a BMW 335 which was an I-6, direct injection, twin turbo, there is a lot more these things can handle once the tuners get a hold of them. Hopefully Vishnu or Cobb gets a hold of one to tune. Pretty soon we will be running huge boost with METH injection! You have to figure that Ford isn't pushing it to the max on a production vehicle.

gimmie11s

^^^^ what he said.

Vishnu does AWESOME stuff with the BMW 3.0s.

Buellracer

I've seen the videos of boost gauges on the Eco and with the spike of 15-16 lbs apparently the motor is fine with... I just wander what it would be like if a tuner could get rid of all the nanny stuff and get it to were the wastegate didn't open so much and it would hold it's 15 lbs to redline.
Doesn't seem so dangerous as the truck spikes there all the time. Thats why I wondered what people were talking about saying these little turbos are maxed and we can't get any more from them. If it will apparently do 15-16 before the nanny comes in and the waste gate calms the boost back to the 9-10 range, how is that maxed?!
I could see 18-20 might be all these little twins could push but that is A LOT of boost (and of course this is pure speculation)! And if you could make it hold it's 15-16 to redline and fuel correctly for it that's 5-6 more lbs of boost and would make considerably more power.
I think in that senario of No nannies and it hold it's boost to redline we could see 400hp at the wheels and who knows maybe even 500 lb/ft!
Just speculating from friends that have had turbo cars and not done much but play with the turbo and tune and got huge output

Kenneth Forbus

The k03 turbos are also on VW 1.8t engine and tuned they push 19 pounds. I know plenty of people that ran tuned k03s hard and never had issues.

I have a boost gauge and the boost is always jumpy and not smooth at all. A good tune is going to do so much for this engine!

bubbabud

People dont relize that unlike a diesel or other turbo moters the boost pressure is not controled by the waste gates its controled by the throtle plate it doesnt mater how much pressure the turbo is makeing the ECM just closes down the throttle plate to prevent over boost in the manifold. THE waste gates only come into play to prevent high pressure befor the throttle body and preven higher temps in the intake charge bubbabud

Buellracer

The ECM closing the throttle plate would actuate the blow off valve to prevent impeller damage in turn reducing boost also (this is probably the sugre/hiccup some people complain of). This ECM closing the throttle plate is precisely the nanny crap I'm talking about that needs to be tuned out IMO. THEN it's up to the owner/ tuner (if it's controlled by the ECM also) to set the waste gate actuator to what amount of boost they want it to open at and thus stop creating more boost.
I want a tuner that doesn't fool with the tranny and all that like the bully dog. I just want the nannies to stop limiting my power output. Seems like that would be a simpler tune to do and create much more and much smoother power. And that's a big deal to me, my engine runs incredibly smooth and I don't want that to change.
I truly think that this motor would be an absolute beast if the ECM was reprogrammed to just stop intervening with the throttle plate and just stick to fueling how much air is fed in, given that the stock injectors can fuel 15-20 lbs of boost. I don't know near as much about direct injection as I do about turbo chargers but I would think that the pressure that these injectors have fuel fed to them that they could supply enough for quite the increase in HP

Buellracer

We need somebody from 5 star to jump in here! I hope they are making an awesome tune for this thing. I've heard such great things about them