I just recently bought a 1987 Grand National with some engine mods and it did not pass my Missouri State Emissions. The car has a fresh engine with only 7000 miles on it, stock cam and heads. The turbo is a Poston Te-61,it has 42.5 lbs injectors, 4" MAF with translator plus, 3" downtube, adjustable wastegate, Eric Marshall 93 Octane Chip, Walbro Fuel pump with adj. regulator and a hotwire kit. It also has the cold air setup with K&N filter. Currently the translator + is set at 2% rich. The car idles and runs great! The readings it got were Hydrocarbons 2.7174 and needs to be .8000, Carbon Monoxide 24.1441 and needs to be 15.000 and NOx 3.4681 and needs to be 2.000
The car has 134,000 miles on it which is probably how many are on the catylitic convertor and that probably needs to be replaced. Looking for some help on where to start to get this thing past my emissions. Thanks, John
The car has 134,000 miles on it which is probably how many are on the catylitic convertor and that probably needs to be replaced. Looking for some help on where to start to get this thing past my emissions. Thanks, John