I think it might be pretty reliable (if the rods don't fatigue) but it'll be more finicky. With a significant increase oil pump might need to go, water pump will be spinning too fast, and the short rods will place a lot of stress on the cylinder walls.

The heads and the direct injection are designed together for low end, if this involves more modification than replacing some components (aka, changing the ports) the low rpm behavior could really suffer. If it's just lighter valves, stiffer springs, bigger cams, shouldn't be too big of a deal. The cam phasing has a pretty wide range to deal with fat cams (if you add like 60 degrees duration on the intake though the idle is probably going to suck no matter what magic Toyota says direct injection can do with EGR, but if it's more modest like 30 degrees maybe not).

Power peak at 9000rpm and E85 could hit 300hp.

would be a shitload of fun despite my expectations of the costs involved

Im pretty sure its gona cost way more to do the n/a high hp road, than to go with a simple bolt-on tc/sc kit...

He didn't just say 300 Hp NA !!!


I-Tapatalk

Nothing is more fun that high revving, large NA Hp. You can't comparing it to boost.

if i can get 250+ whp N/A with a mild build, way worth it

good stuff, now you just need a solid cam option

Thread cleaned up. Please keep it on topic and stay away from the NA vs. FI arguments.

wrong! more revs mean less torque. crew that!

The market's been mum on this as far as I've seen. Of course you get a custom regrind, but an off the shelf variety of options would be cool.

Ive heard Tomei and Perrin are both coming out with cams, excited to see how they help this car. And how these cars will sound with them most of all.

250+ Hp NA on this car would be spectacular.

I hope Jun makes some cams. I love my Jun 3 cut cams.

Perrin has never made cams for a Subaru...Jun, Tomei, even HKS I could see. I'm hoping for something more along the lines of Kelford, GSC, maybe Cosworth.