[Blue01Street]

Originally posted by PhilM:
Air:Fuel ratio should always be the same. 14:1 or there abouts.

With turbo applications, air is increased, so fuel must be increased to keep the ratio at 14:1 - stoich, not rich or lean.

<font size="2" face="Verdana, Arial">It's best NOT to reply if you have no idea what you're talking about.

 

[focusownerskid]

Originally posted by Blue01Street:
It's best NOT to reply if you have no idea what you're talking about.

<font size="2" face="Verdana, Arial">I was going to say the same thing.

- Drew

 

[nazthug]

Originally posted by PhilM:
Air:Fuel ratio should always be the same. 14:1 or there abouts.

With turbo applications, air is increased, so fuel must be increased to keep the ratio at 14:1 - stoich, not rich or lean.

<font size="2" face="Verdana, Arial">ouch...even i wouldn't say that

Tune a turbo car to 14.1 a/f and tell it to pack up its bags, cause its goin byebye

 

[boost til' bust]

just wondering how most of you are adjusting your air fuel ratio for turbo applications.

 

[PhilM]

Air:Fuel ratio should always be the same. 14:1 or there abouts.

With turbo applications, air is increased, so fuel must be increased to keep the ratio at 14:1 - stoich, not rich or lean.

 

[boost til' bust]

haha yea, thanks guys. I was gonna say something, but he didnt even answer what I was asking.

 

[Chris F]

11-12.5 is a good rough range for forced induction cars on pump gas under boost. My car runs around 11.7-12.2 under boost.

14:1 is fine (in fact rather desirable) cruising down the highway at 70mph though.

 

[Leadfoot/S2]

I think I know what your asking.
Tom's MIC (Maf, Injectors, Chip) is the general method most FI people would prefer to use to adjust the A/F Ratio. There are quite few different methods though. Right now I'm using a SFMS 5th injector unit that sells with the aerocharger. I don't think the MAFterburner or other A/F adjusters out there will provide enough fuel for FI.

 

[Chris F]

Doh bad me not answering the original question.

Yep you more or less have three choices.

1. MAF, Injectors, Chip from Tom
2. 5th injector from an Aerocharger kit
3. Pectel and bigger injectors

1 and 3 would be the best choices as they address timing as well. My best suggestion is to bust out the search engine and read up.