I may have figured out my detnation and lean AFR problem.....

[The Rock 326]

Originally Posted by Wicked

Neither one of you have intercoolers right?

What is your timing? A lot of tuners like more timing and fuel, and some like less timing and less fuel. Its all a balancing act. You may need to take timing out of it, not fuel.

My car is kinda like a poster child for how long a car can run with a pegging MAF and 12.5-13:1 AF at high rpms with 13 psi of boost. No pinging ever, cold or hot. I am also running the lowest timing I have ever seen on a car like mine and I believe that's the key.

Chris Johnson, president or whatever of Superchips and found of Johnson Motorsports(JMS CHips), tunes like this.

My point is, a 12:1 AFR is not lean at the boost levels you guys are running and timing makes heat too.

My .02.

BUT, because of your pump situation, you my actually be running lean. :-D

As far as mine, I want to take out timing, and add fuel. Pretty sure the Street tune is @16 degrees. I think the Race tune is set @ 19.5 degrees, that is of course with race fuel.

I still think this has a lot to do with the outside temp.

[QWKSNKE]

Originally Posted by The Rock 326

I still think this has a lot to do with the outside temp.

yes. there are tables in the EEC in regards to timing and and incoming air temp.

[rtusnake]

Originally Posted by Wicked

Neither one of you have intercoolers right?

What is your timing? A lot of tuners like more timing and fuel, and some like less timing and less fuel. Its all a balancing act. You may need to take timing out of it, not fuel.

My car is kinda like a poster child for how long a car can run with a pegging MAF and 12.5-13:1 AF at high rpms with 13 psi of boost. No pinging ever, cold or hot. I am also running the lowest timing I have ever seen on a car like mine and I believe that's the key.

Chris Johnson, president or whatever of Superchips and found of Johnson Motorsports(JMS CHips), tunes like this.

My point is, a 12:1 AFR is not lean at the boost levels you guys are running and timing makes heat too.

My .02.

BUT, because of your pump situation, you my actually be running lean. :-D

Whats your timing at?

[Wicked]

Originally Posted by rtusnake

Whats your timing at?

11 total across the board.

[tacbear]

Originally Posted by Wicked

11 total across the board.

I am pretty sure my "Race Tune" is 14 deg.

[Wicked]

Originally Posted by tacbear

I am pretty sure my "Race Tune" is 14 deg.

That's not very aggressive at all.