Cleaner burning classics

From: Daven Anderson
Email: l96lfury@springmail.com
Date: September 09, 2001


Brian is correct that a properly tuned engine regardless of the year of manufacture will have low emissions. I have seen four/five year old cars record higher emissions than my 1960 and 1961 Plymouths,simply because of neglect. (In my state, 1960 and up are emission tested; testing frequency varies on type of licensing) Certainly true multi-port EFI would help lower emissions (TBI I do not think would improve on a well-tuned carb!),but it's the performance advantage that gets people to drop money for MPFI. Catalysts would actually be a good upgrade now that high-flow large-diameter aftermarket catalysts are available. Since a dual exhaust improves efficiency,it may reduce pollution all by itself; a high-performance dual exhaust with H.P. catalysts would have very little restriction (the muffler choice would be more important). And it would cost a lot less than MPFI! New piston rings make a BIG reduction in emissions if yours are worn.... The electronic ignition and unleaded fuel you're already using sustantially reduce emissions compared to when our cars were new,so keep it in tune and you're A-OK. Besides that,keeping a classic on the road IS recycling,of the highest order!