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08-20-2014, 04:18 PM | #1 |
Drives: Toyota Yaris Track prepped Join Date: Nov 2013
Location: The Netherlands
Posts: 34
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Engine/Gearbox Weakness
Hi Guys.
Bought a LSD for my track yaris and the list is getting shorter for mods on the yaris. So i've been running the TTE compressor kit for a while and all just runs fine. But what if i want to get more boost from it? What are the main things to worry about. Looking to get about 200/225 whp which should be more than enough, more is just silly on a fwd car especially on the track. Any of you guys have had some experience with the following things? ECU (Link/AEM?) Connecting rods (Molnar?) Headbolts (ARP?) Low comp pistons 9.0:1 or 8.0:1 (CP?) Smaller fixed compressor pulley (about 20/30% smaller?) Larger injectors/Rail/Fuelpump/Swirlpot etc What about the head, i presume the valves and springs could use an upgrade 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? Thanks!
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Time Attack Toyota Yaris 1NZ-FE Supercharged |
08-20-2014, 05:01 PM | #2 |
Mr. 155 and climbing
Drives: Seriously Modded 07 Sedan Join Date: Jun 2006
Location: In The Hotbox
Posts: 4,742
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there are plenty of threads on engine builds here. just use the search function. I would start in the Performance section.
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Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes. |
08-21-2014, 12:26 AM | #3 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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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.
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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. |
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