2ZR Turbo Yaris

[eTiMaGo]

Originally Posted by 06YarisRS

Thanks! I love Mighty Car Mods. I did a bit of reading since my last post. I can definitely see why you'd be attracted to E85.

So, right now I'm running 93 octane and I'm getting intake temps around 60 - 80F and running about 14.5 AFR up to 3 - 4 pounds boost (ECU in closed loop). I only get AFR enrichment if I go pretty close to WOT. This is a drawback of the FIC. Do you think I'm ok at those temps? I do worry a bit due to the relatively high static compression of the engine, 10:1, I think. I know there are many variables and it would be difficult to really know for sure.

Turbokits.com apparently had mixed results with the 02 spoofing, tricking the computer into targeting a richer AFR during closed loop operations. I haven't started experimenting with this but may in the near future. I really should have listened to the first tuner who I spoke with and who definitely recommended standalone management.

Oof, I'm not sure I'm knowledgeable enough to answer you there... From what I gather, with premium fuel and not such a huge amount of boost, you should be OK... You have the advantage of not living in the hot, humid tropics too :D Does your engine have a knock sensor? If so, there should already be some mitigation built-in.

[06YarisRS]

Originally Posted by eTiMaGo

Oof, I'm not sure I'm knowledgeable enough to answer you there... From what I gather, with premium fuel and not such a huge amount of boost, you should be OK... You have the advantage of not living in the hot, humid tropics too :D Does your engine have a knock sensor? If so, there should already be some mitigation built-in.

Yes, there are many variables to consider and every car, and every engine is different. I'm pretty sure I'm safe with 93 octane, low boost and cool charge temps. I rarely have to enter boost under normal driving conditions. I can easily sail up a long highway hill at 130 - 140km/h while still in vacuum. When I want full boost (which is now 6 - 6.5 after adjusting the wastegate eariler today) I go WOT and my mixtures are good and rich. My car does have a knock sensor, as far as I know.