wide band vs dyno tuning?

[workingdan]

So I am putting my car back togeather and was looking to add a PLX wide band and have my TT chip reburned to auto tune the ecm. Would the car run just as good with the PLX as opposed to having it dyno tuned?
Thanks Dan

 

[Boost231]

run the wb sensor with erics wideband chip. dyno tunning is one thing, with his wb chip you can do your tunning at the track and on the street. thats the best way to go. no need for a dyno imop

 

[bison]

I agree with boost231 unless this is a new combo. The dyno has proven it's value many times and saved a lot of aggravation when used to get the engine in it's window of operation. You aren't going to be running your car out the back of 3rd if you're making any real power on the street trying to figure out if it's laying over or not.

 

[jasjamz]

I used to frown on dynos for tuning and figured it was better to tune at the track. After really getting some experience around dynos, I realize it is a very useful tool in tuning. You need the wideband to monitor the air fuel ratio out of the engine. You use the dyno to see what changes in boost, timing, and air fuel ratio have on your horsepower and torque output. Then you make your final adjustment on the road and track. Erics chips work great for me and my friends. However, I think I'm going to keep wideband tracking off at WOT on pump gas and alky cars once I get them dialed in the way I want them

 

[workingdan]

run the wb sensor with erics wideband chip. dyno tunning is one thing, with his wb chip you can do your tunning at the track and on the street. thats the best way to go. no need for a dyno imop

So would I just adjust the A/F ratio or go in and change timing?

 

[696]

With his 6.1 chip you can adjust both. Set your A/F ratio then add timing as you go, to see what the car likes.

 

[Boost231]

i agree with both the above posts. The dyno is very useful tool don't get me wrong. For Erics chips i would tune on the street and track. Then if i wanted to get the very most out of it to see what the car likes as far as a/f and timing i would use the dyno. I would start by setting the a/f to 10.8 which the chip should be preset for and then dial in your boost. once the boost is where you want it try adjusting the timing a few degrees. After that you can play with the a/f is you so choose. lots of ways to skin a cat imop. Now for a XFI setup, street tuning, track tuning, dyno tunning, works wonders.

As for turning the WB correction off at WOT, i wouldn't. I have seen +/- 5% fuel adjustment needed just in weather changes. The WB correction will correct for this, if its off then sometimes you might be a hair leaner or a hair richer. When running 25+psi of boost i don't want to go lean even if its 5%. i would rather be on the rich side if anything.

 

[QWKRTNU]

You can do it both ways depending on your budget

 

[Red C5]

So with that chip can you adjust timing, fuel, etc as you go? I'm a little unclear about the "auto tune chip"?

Peter

 

[Boost231]

you can change timing fuel. you will have to pull over to do so but you can change these setting. the WB chip will read the a/f and correct to as much as it can to try and stay at the target a/f. you can tweak the chips fuel over fuel to get the correction factor to +/-5% at WOT. lets not talk about each gear timing and fuel. basics first

 

[TurboTnZ06]

The 6.1 chip lets you cruise around using the MAF. Then at WOT, it uses the W/B target ratio to try to get there, adding up to 33% fuel if needed. This way you can set your base fueling value for intended boost/tune, and if you run more boost, the chip can add fuel to compensate towards the desired A/F as needed.

It can't do what you can do with XFI, but for limited strip use it's an alternative and it should run well out of the box.

 

[trbojo]

do you need a powerlogger to be able to use the wideband chip? this works similiar to an xfi in that it is a feedback adjusted fuel system?

 

[jasjamz]

Yes you need a Powerlogger for the 6.1/6.2 chips.

 

[TurboTnZ06]

Or you can go with the MAF Translator GenII with wideband tracking, although I never tried my Gen II with a wideband, but I suspect it offers changability every 500rpm like it did for everything else, it really needs the Extender chip though too for WOT spark programming.

 

[trbojo]

still running the stock maf...looks like it's time to buck up with Eric again

 

[workingdan]

Thanks guys. I am starting to understand how it all works now.

 

[we4Mateo]

Thanks guys. I am starting to understand how it all works now.

You go pretty fast for a person just starting to understand. You must be doing something right. Good luck with your ride.

 

[84BuickGNYorkPA]

Eric also has the Speed Density Chip, just in case you want to put the MAF sensor on the work bench and leave it there. 21 parameters in all and 20 of them are adjustable, the other setting is to reset the chip, it also will target the a/f during idle, highway and WOT, just something else to consider.

Chuck

 

[workingdan]

You go pretty fast for a person just starting to understand. You must be doing something right. Good luck with your ride.

Well if you throw enough money at it it should go fast LOL

 

[bison]

Well if you throw enough money at it it should go fast LOL

Coulda. woulda, shoulda