Amlan

Hey guys I just got my car tuned at JMS in MS. it's a stock block with on3 single 70mm turbo kit. It was properly installed with fuel system upgraded, 60lbs injectors, details of tune is attached on the picture. I am loving the car with 418hp and 418tq but at idle I smell gas! Its almost head spinning the amount of fumes coming out from the side exhaust. I was wondering if this was due to the safe tune (running rich). And if it can be fixed without taking it back to the dyno. Thank you!

Soldier GT

I would get that checked out ASAP! Also on a stock 4.6l block (2v) I wouldn't try to go to much higher (rwhp).

jwog666

sounds like he needs to adjust the idle air fuel, as long as there isnt a stuck sensor or something

kirk35

Do you have a wideband in the car? What is the actual A/F ratio at idle?

I'm just wondering if it is truly rich or if you are just experiencing a catless exhaust for the first time. A lot of younger folks don't remember or never experienced life before catalytic converters.