150 FWHP

[Midnight Drifter]

Originally Posted by cali yaris

^ with a GT25 almost instantly. With a GT28, just a second or so.

Is the GT25 suitable for my (comparatively) modest goal?

[Tamago]

Originally Posted by Midnight Drifter

Is the GT25 suitable for my (comparatively) modest goal?

yes

[Midnight Drifter]

Alright, I hate asking questions that were probably asked dozens of times, but I come into the Yarisworld fresh out of ownership of a Mk. 3 Supra... the 7M-GTE engine's headgasket starts leaking at the mere mention of adding boost... what kind of internal mods need to be done? Is the stock HG potent enough? How does VVT-i sync with forced induction? Do I need to run a completely aftermarket ECU? How about the exhaust system... probably need to open it up to at least 2.5", right?

Sorry for being such a n00b.

[Focus_Sh1ft]

Originally Posted by Midnight Drifter

Alright, I hate asking questions that were probably asked dozens of times, but I come into the Yarisworld fresh out of ownership of a Mk. 3 Supra... the 7M-GTE engine's headgasket starts leaking at the mere mention of adding boost... what kind of internal mods need to be done? Is the stock HG potent enough? How does VVT-i sync with forced induction? Do I need to run a completely aftermarket ECU? How about the exhaust system... probably need to open it up to at least 2.5", right?

Sorry for being such a n00b.

1) No internal mods are needed for low boost (~ 8 psi), however the max boost possible on stock internals is still uncertain. Obviously longevity becomes an issue as you start really pushing it.
2) VVT-i is called variable valve timing with intelligence for a reason. I don't think anyone is boosted with a camcon, so I can't comment on adjusting it on a forced induction application. It's fine by itself though.
3) There's no reason for an aftermarket ECU unless you're doing a huge build. AEM FIC or a camcon are just fine. All that really needs to be tuned is air/fuel anyways.
4) I think 2.25" is perfect for 8 psi for exhaust. From what I understand, by going too large on the diameter you lose low end torque. 2.25" is safe and doubtfully sacrifices much torque.