Air /fuel ratio after TB install?

[SANTEEN]

I just installed an X Metal throttle body. Before the install my AEM guage showed 12.5 - 12.6 on full throttle. After the install it shows 11.5 - 11.6. Is this alright. When I ordered the tune that I am currently running, I told them that I already had the TB installed. So, the TB was a determing factor in the making of the tune. Thanks, as usual, for your help with my stupid questions. But, somones gotta ask them.

 

[Ironhead]

did you unplug battery and reset ecm then drive it a bit ,,,then try it,,you could always go back to stock tune and see if it is still in the 11 ,s,,if it is its prob. not the tune

 

[FATJACK]

You are really worrying the piss outta me with this simple install, sure hope you don't try anything major like plug wires. lol

 

[SANTEEN]

did you unplug battery and reset ecm then drive it a bit ,,,then try it,,you could always go back to stock tune and see if it is still in the 11 ,s,,if it is its prob. not the tune

Yup, I did that. I'll drive it around for a coupl of days and see how it goes. I'll try the stock tune, also.

 

[SANTEEN]

You are really worrying the piss outta me with this simple install, sure hope you don't try anything major like plug wires. lol

Shit, you should of seen me installing the plugs. The TB install went pretty easy.

 

[FATJACK]

Just screwing with you Steve, you have done an awesome job with your truck in a very short period of time:rock: :rock: :rock: :rock:

 

[Dom426]

the richer the safer but 11.5 is where im at with 20 pounds of boost

 

[rottenronnie]

Something caused your A/F to go rich by one point. Make sure all the hoses are installed, including the short one closest to the engine at the back of the accordion tube and anything else you may have disturbed...
As mentioned 11.5 is safe; but not great for power production naturally aspirated.

 

[Dom426]

Something caused your A/F to go rich by one point. Make sure all the hoses are installed, including the short one closest to the engine at the back of the accordion tube and anything else you may have disturbed...
As mentioned 11.5 is safe; but not great for power production n.a.

you canadians sure are smart !! go GSP!!!!!!!!!!

 

[rottenronnie]

you canadians sure are smart !! go GSP!!!!!!!!!!

Hey thanks! But not smart enough to know what GSP is apparently...

 

[Dom426]

Hey thanks! But not smart enough to know what GSP is apparently...

george st. pierre..,.,. he fought last night in ufc 100 and kicked arse.....#1 sports figure in all of canada!!

 

[rottenronnie]

george st. pierre..,.,. he fought last night in ufc 100 and kicked arse.....#1 sports figure in all of canada!!

I guess I should spend more time away from the track!!

Ronnie

 

[Ironhead]

i know this is a dunb question but make sure you hooked up the small hose that goes on the bottom of the tb ,,easy to forget that one

 

[SANTEEN]

I'll double check all my connections. Thanks guys. And, Jack, I know you were just messing with me.

 

[bigike]

11.5 is good on NA truck right?

Any detonation?

 

[SANTEEN]

11.5 is good on NA truck right?

Any detonation?

I'm not sure, that's why I was asking. I was just wondering why it went from 12.5 to 11.5, when I added the throttle body. The addition of a throttle body is part of my tune. So, maybe it's supposed to be at 11.5 with the throttle body. What's an ideal air/fuel ratio at wide open throttle? As for detontaion, it's more on the rich side, so I wouldn't expect any detonation.