Beefing Up my Yaris

[Loren]

I'm scratching my head trying to figure out why, with the given goal of 130-140whp, you don't just go with a readily available and proven supercharger kit. You'll end up spending more on a custom turbo kit in the long run.

Expand your $2500 budget to $3000-3400 and you get a plug & play kit that meets your goals without trial and error.

If you want MORE power than that, then you need to go through the trials and tribulations of a custom turbo kit, fuel management, possibly forged internals, lower compression pistons, yadda yadda. But, if all you want is 130 hp...

[H3LlIoN]

Originally Posted by Loren

I'm scratching my head trying to figure out why, with the given goal of 130-140whp, you don't just go with a readily available and proven supercharger kit.

A couple things regarding this....

First, the blitz will not put down a buck thirty by itself. "Turbo" magazine installed it and only got to 119hp. Link Here.

Secondly, there is very little upside to the blitz. If you want more boost, you first have to convert it to fixed pulley, instead of electronic, which is unproven ground as, to my knowledge, noone has done it. Then, you have to drop to lower comp pistons, since more boost on our factory 10.5:1 pistons will cause issues. Past that point, the s/c is capped at a (roughly) 9 to 10 psi on the housing before you leave the safe operating range.

At the very least, you would need to run s/c with additional bolt ons.