ECU Calibrating

[SOFARMOREINFO/EXPERIENCE]

I have an 09 Sierra 1500 with a LU3, 4th Gen 4.3L v6. I eventually want to turbo or supercharge my truck, but I realize before I put any wrench time in that I will need an ECU calibrator (tuner) because I drive my truck daily and don't exactly have the money to throw in all the parts I want and take it to the local dyno tuning shop. What would be the cheapest tuner that would support a wideband exhaust analyzer, boost pressure sensor, ect? I plan to start with a bigger cam and upgraded valvesprings.

[Carder09]

Talk to Black Bear Performance. They can point you to the right direction and probably even help you!

[SOFARMOREINFO/EXPERIENCE]

Is ecu tuning difficult? So far my only engine building experience is a 350 sbc, i rebuilt the bottom end with a .020 over cower stroker kit, comp cams valve train kit and a holley 850 carb, and I never took it to a dyno. The only hint at how much power it made was the fact that it turned a stock turbo 350 trans to shrapnel the first time I really got on it.

[chucksrt]

I hear lots of really good things about black bear on the forums. I have always used pcmforless.com but with them you need to send your computer out to them.

[FuelHauler87]

Yup black bear. They did my 08. Loved it.

[SOFARMOREINFO/EXPERIENCE]

Do black bear ecu tuners support the 4.3l? All the ones I looked at on their website where advertised for the 5.3l and larger v8 engines.

[Jennabear]

Yes, BBP tunes the 4.3L.

[white1500]

Sorry but why spend money on a NA V6? You're spending money to catch up to a V8 that has a lot more potential in the first place IMO. Did you already consider the gearing and tranny aspects?