wideband installed.. That's really strange.. and good!

[japakos]

Ok, so I installed my wideband aem uego and here we go: Setup:
2.0 beta1 engine, with 1.6 LC ecu, 1.8L camshaft, unorthodox underdrive crank pulley, beta2 coilpacks, beta2 intake manifold(stock) , beta2 injectors(190cc), hks mushroom filter, obx headers, 2.25 exhaust, resonator and a stock 1.8 nissan almera muffler. Here we go.. I start the car and I see 14.7. I say ok and here we go. WOT 1st gear shows 13.2:1, 2nd, 13.2:1, 3rd the same and 4th the same! I say what the hell is this? The car running 1.6 ecu and the other stuff should be shit and needs tuning! My safc is set at 0% values everywhere! Now what the fuck is this? This is not only good. This is incredible! Not even with a piggyback? Strange shit here.. I won't mess with it anymore that's for sure!!!!! P.S. at half throttle I am reading 14-14.7 which is also cool! hehehe... I like this!
I managed to tune the car diy without a piggyback!

[fintile]

Sounds good! How much was the Wide band?

Originally Posted by japakos

Ok, so I installed my wideband aem uego and here we go: Setup:
2.0 beta1 engine, with 1.6 LC ecu, 1.8L camshaft, unorthodox underdrive crank pulley, beta2 coilpacks, beta2 intake manifold(stock) , beta2 injectors(190cc), higher compression (mild the head by 3/10ths) hks mushroom filter, obx headers, 2.25 exhaust, resonator and a stock 1.8 nissan almera muffler. Here we go.. I start the car and I see 14.7. I say ok and here we go. WOT 1st gear shows 13.2:1, 2nd, 13.2:1, 3rd the same and 4th the same! I say what the hell is this? The car running 1.6 ecu and the other stuff should be shit and needs tuning! My safc is set at 0% values everywhere! Now what the fuck is this? This is not only good. This is incredible! Not even with a piggyback? Strange shit here.. I won't mess with it anymore that's for sure!!!!! P.S. at half throttle I am reading 14-14.7 which is also cool! hehehe... I like this!

[skierd]

I'd still try to get the car on the dyno as you might find the car makes more power with a slightly richer a/f ratio. Make sure you run mid-grade or better pump gas just in case as thats pretty lean.

[fintile]

Not sure if all Hyundais are this way but my Alpha runs better when its lean, not sure. See when I was getting my car dynoed with the turbo I was getting 138-142 but I was OFF THE CHARTS LEAN. Richen it up and the power went down to 119-124...so who knows.

Originally Posted by skierd

I'd still try to get the car on the dyno as you might find the car makes more power with a slightly richer a/f ratio. Make sure you run mid-grade or better pump gas just in case as thats pretty lean.

[J0eFr0]

you get more power when ur lean, but in turn it destroys the engine a lot faster

[warp21]

I keep hearing here that lean = power but everything I read elsewhere says that 13.0-1 at max torque rpm and 12.5-1 at max horsepower rpm it considered ideal for making the most power overall. Here is a quote from wiki:

In Naturally Aspirated engines powered by octane, maximum power is frequently reached at AFRs ranging from 12.5 - 13.3:1 or λ of 0.85 - 0.901.

[japakos]

And those number are exactly what my aem says. It's really strange that with the 1.6 ecu the car runs like this.Maybe the narrowband sensors do some job and the kefico autotunes itself... i don't know!

[warp21]

Here is a chart for a visual reference to what I'm talking about.

[Jed118]

Nice. How much was the wideband?

[japakos]

The wideband is the AEM uego which costs 230 shipped to US