I tried posting this with the mobile app but failed.

mods, K&N typhoon intake, zzp long tube 3" catless 2.5 all the way back, front mount zzp ic, new ic pump. I am using a aem wideband gauge and interceptor gauge.

Long story short a friend of mine is tuning my car. He has nearly the same setup except he is 2.7 and I am about to go to a 2.8 but I have yet to install pulley nor injectors till after xmas. We decided to go in and tune my MAF. He left on a 2 week vacation and I am still using my car. The tune is great but still needs some fine tuning. My question is how safe is it to run with these afr numbers?

WOT
2k 14.0AFR
3k 13.5AFR
4k 13.2AFR
5k 12.8AFR
6k 12.6AFR
7K 12.4AFR
No NR unless shifting but still very minimal (1.0) and timing is normal. AIT2 is always under 100F and coolant never hits 190F

I know I should be babying the car but 2 weeks without going wot is going to drive me nuts.

 

11.9 Is where most are. But continue to go WOT if you want to break something.

 

oh man I feel like crap I beat on the car pretty hard last night. lol


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Yeah i would put myself back to the normal tune and wait till those parts are in. Then go get tuned. Dont do things ass backwards and be unsafe.

You blow up who are most going to blame, their tuner, when in reality its all your fault.

 

i was sitting like 11.2 at wot, no matter if 2k or 7k

 

its just a tune for the intake. still stock pulley and injectors.


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ima just baby it till we finish it.


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thanks for the input guys


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11.8 is sexy time

 

The car runs so ******* great right now though. I killed a srt10 ram from a dig and a bmw on the freeway. I almost want to not believe my afr gauge but I know I probably already did some kind of damage if not weakening of the piston. like I said before I get alot of anxiety of this stuff.

 

Yeah that sounds too lean unless ur running meth and im guessing ur not

 

And boom goes the dynamite

 

What are good numbers to see at idle and cruising?

14.5 & 18ish good?

 

im 11.2AFR at WOT and my idle is 14.5-15.5ARF. my idle on HPtuners looks deadlined

 

Im tuned for 11.7. I see as high as 12.5 when i mix E85 to get rid of knock.

Expect to burn your cat out soon.

 

I'm not going to burn out my cat. I don't have one lol


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Or pop a piston

 

I have 4 of those

I'm not too worried. I'm babying it and keeping her cold. no knock, no detonation, high octane.


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It doesn't matter. If you've done some damage, babying it and running high octane won't do squat.

 

no but it will help prevent further damage. I'm sure I'm good.


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18ish is no bueno.

I see between 13.5-15 during normal driving on my A/F ratio. Will have to check next time I go WOT.

I dont think you have anything to worry about, but dont beat the **** out of the car when its not fully tuned.

 

over a year too late for that

 

was meant for the OP, haha

 

Riceburner was talking about at cruise and idle. I bet he is only seeing the 18 when he gets off the throttle and dfco kicks in. Wideband shows max lean because the fuel is cut off. If he was running 18 at full throttle we would already have seen pictures of his melted pistons on here.

 

I just installed a new catless exhaust and suspecting a leak may be throwing off my 02 sensor and wideband.


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