Engine/Gearbox Weakness - Toyota Yaris Forums

cali yaris · 08-21-2014, 01:26 AM

ECU (Link/AEM?)

*** AEM FIC or better. If you can afford a standalone, do it.

Connecting rods (Molnar?)

*** I sell better rods than Molnar for less money. Or Crower.

Headbolts (ARP?)

*** ARP head stud kit is now in stock.

Low comp pistons 9.0:1 or 8.0:1 (CP?)

*** 9:1 -- 8 to 1 is way to low.

Smaller fixed compressor pulley (about 20/30% smaller?)

*** Sure, why not for a supercharger.

Larger injectors/Rail/Fuelpump/Swirlpot etc

*** AS NEEDED only. might size up the injectors, and a Walbro 255 or similar. return line is recommended.

What about the head, i presume the valves and springs could use an upgrade

*** ONLY if you are going to rev above the stock limit, otherwise that is a waste of money.

and what about the gearbox? How many HP/torque can a stock gearbox take before blowing up? also what about the rev limit on a stock gearbox?

*** I threw 357whp at mine and it never broke. I had a 7300 rpm rev limit. Your rev limit is determined by where your power curve ends, NOT anything else.

08-21-2014, 01:26 AM	#3
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	ECU (Link/AEM?) * AEM FIC or better. If you can afford a standalone, do it. Connecting rods (Molnar?) * I sell better rods than Molnar for less money. Or Crower. Headbolts (ARP?) * ARP head stud kit is now in stock. Low comp pistons 9.0:1 or 8.0:1 (CP?) * 9:1 -- 8 to 1 is way to low. Smaller fixed compressor pulley (about 20/30% smaller?) * Sure, why not for a supercharger. Larger injectors/Rail/Fuelpump/Swirlpot etc * AS NEEDED only. might size up the injectors, and a Walbro 255 or similar. return line is recommended. What about the head, i presume the valves and springs could use an upgrade * ONLY if you are going to rev above the stock limit, otherwise that is a waste of money. and what about the gearbox? How many HP/torque can a stock gearbox take before blowing up? also what about the rev limit on a stock gearbox? * I threw 357whp at mine and it never broke. I had a 7300 rpm rev limit. Your rev limit is determined by where your power curve ends, NOT anything else. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode