hopefully it's not a GT22. If it is, people are going to have to swap out for a bigger turbo if they want to see impressive gains. It's probably going to be like the Focus ST where the turbo itself is the biggest restriction and everything else is over-engineered.
I'd rather have a smaller turbo that gives me 90% of peak torque from 1500 RPM to redline then a larger turbo that has peak torque at 5000 RPM and takes 10 minutes to spool fast enough to build boost... If it peaks out at 350/350 at the wheels that is PLENTY for what I need, I don't need a 600/600 four cylinder.
A larger turbo doesn't mean that you will have peak torque at 5000 RPM, though. The GT22 is very small turbo, only slightly bigger than the K03 the Focus uses. It's also only rated for 280hp. I know it's not just about peak performance numbers, and the curve should be nice, but I'd like usable power all the way to the 6500rpm redline. The Focus ST runs out of steam around 5300rpm, and I'd just personally prefer a larger rev range.
That sentence is the one "Con" on my list that would keep me from ordering the I4 Mustang ST or whatever its being called. Let's hope that the aftermarket is as prepared as ever for the Mustang and we'll have a couple of options.
It appears it's going to be a GT.
The EcoBoost I4 will be called GT?
Yes it was in the 80s. The ST is a Focus/Fiesta thing.
for 2 years.. I hardly see them calling anything but the standard V8 a GT. I don't think it'll be called an ST, but I'd be really surprised if the V8 and turbo 4 share the same nameplate
The 6.7L PSD has it and I think the McLaren MP4-12C.
I'm familiar with twin scrolls but the image you posted was not a twin scroll design that ive ever seen. It looks like it has two separate compressor and turbine housings...?
