New Chip Features (Code59)

[SBNova]

Re: New Chip Features (Code59)

Yeah I understand. I made a few tailpipe adapters in search of a design that was the least contaminated by fresh air yet the most responsive. Ive got a decent design now. My Nova would read horribly high AF ratios at idle due to the overlap in the cam before I made the latest version. I also understand the CAT will change readings some, and I plan to do a comparison between placements when I get a tune closer. Its just so much simpler for me to use the tailpipe adapter right now.

 

[z28camaro]

Re: New Chip Features (Code59)

dgoodhue to answer your question, yes the romulator works just fine with $59 and tunerproRT.

 

[SBNova]

Re: New Chip Features (Code59)

Just a word about tailpipe adapters;
I installed my WB in the downpipe to compare readings yesterday. It reads very close to the tailpipe readings. I would say its no more than .1-.2 different at cruise, if any. Now my tailpipe adapter is home made. I have two settings for it, one for idle and one for just about everything else. At idle, exhaust flow isnt strong enough to keep outside air from giving a false lean condition. It would read 20:1 until you brought the rpms up to almost 1K, so I modified it for use at idle and it worked great- but set like this it would not react fast enough at cruise. Therefore, I have two settings. Otherwise it works reasonably well.

 

[JSM]

Re: New Chip Features (Code59)

Once the new code is released I suspect you will find you will want a permanent wb in your truck anyways. That can be removing the stock o2 sensor and installing in that bung. The advantages are already good for cruising, as we are seeing 2-3mpg gains now. As time goes on and the code is refined more it will be even better in the boost areas.

 

[Jimmy]

Re: New Chip Features (Code59)

Once the new code is released I suspect you will find you will want a permanent wb in your truck anyways. That can be removing the stock o2 sensor and installing in that bung. The advantages are already good for cruising, as we are seeing 2-3mpg gains now. As time goes on and the code is refined more it will be even better in the boost areas.

I've gained 5 MPG in the city thanks to the tuning you did last weekend. I used to get 15,now I'm getting 20.This is insane! :tup:

I can't wait to start beta testing this on my own.

 

[SBNova]

Re: New Chip Features (Code59)

The sad thing for me is that I am barely up any MPG at all. I am running 15.5 AFR at my lightest loads, and 15.2 around that, to ensure that I am just greater than 15:1 at cruise between 40 and 75 mph. So far I have seen very little MPG improvement. I recentl;y switched to closed loop, and its about the same. I started with a bin from Paul and it ran well, but slightly rich everywhere. I have the fueling pretty muched nailed for my truck, except for boost which is close but not perfect. I didnt notice untill last week that the timing tables in his bin were VERY conservative at cruise compared to what I was running in $58. I changed them, adding up to 6 degrees at some points. The truck drove down the open road so much nicer- I was positive I was gonna see big changes in MPG, but its not much better. I am probably averaging 15-16 in town.

As for my driving habits, I am trying to drive for mileage. I rarely hit boost if any. I try to drive very smooth- so I dont engage AE or PE. After watching the WB, I can tell how much pedal to give it to stay out of any mode that adds fuel.

BTW, one thing I changed might interest some people. In the boost vs IAT's, I pulled some serious timing from anything over 15 psi. Since I am only aiming for stock boost I used that table as a safety net for overboost. Something to consider for those with that problem since this field reads 300 kpa now (actually 200 kpa of positive pressure)

 

[ashman]

Re: New Chip Features (Code59)

slightly OT...but JS...PLEASE bring back the "chick lick'n the turbo" avatar.

 

[JSM]

Re: New Chip Features (Code59)

slightly OT...but JS...PLEASE bring back the "chick lick'n the turbo" avatar.

You don't think this one is similar? Still has a tongue hanging out?

 

[ashman]

Re: New Chip Features (Code59)

the "chick" was one of the coolest...this one makes my stomach hurt

 

[SBNova]

Re: New Chip Features (Code59)

Yeah I was digging the chick licking the turbo too. Did you get that from Turbobuick.com or is that you over there as well- someone on that site had the same pic.