Looking for help on ~300 horse build

[06YarisRS]

Originally Posted by tmontague

Great info on the ECU hack. $350 is somewhat reasonable and I will he looking into this for next season

Yeah, I'm seriously considering having them do something with my ecu. First, however, I have to find out all the potential pitfalls of forcing the car into open loop at lower throttle positions. Of course, a completely new fuel map would be needed. That could be tricky. It might be worth the investment to buy on eBay a used ECU and have it delivered directly to them and ask them to list everything that they could do with it. I only paid ~$18.00 for my ecu with free shipping, so that's squat. I wonder what they'd charge to crack into one and see what the capabilities are. Frankly, if I could do away with the F/IC, I would. Maybe our ECUs could be configured to handle low boost, such as mine, without the need for any additional computer. You're running an xD ECU, but for manual, correct?

[tmontague]

Originally Posted by 06YarisRS

Yeah, I'm seriously considering having them do something with my ecu. First, however, I have to find out all the potential pitfalls of forcing the car into open loop at lower throttle positions. Of course, a completely new fuel map would be needed. That could be tricky. It might be worth the investment to buy on eBay a used ECU and have it delivered directly to them and ask them to list everything that they could do with it. I only paid ~$18.00 for my ecu with free shipping, so that's squat. I wonder what they'd charge to crack into one and see what the capabilities are. Frankly, if I could do away with the F/IC, I would. Maybe our ECUs could be configured to handle low boost, such as mine, without the need for any additional computer. You're running an xD ECU, but for manual, correct?

Yup, I have a manual ecu installed. Having them tune an extra ecu would he a bonus so you could always go back to your current set up if needed.

I'll have to contact them down the road to get a price from them. I'm looking to increase the redline to 7500 rpm and have timing advanced for 93 octane.