1979 L82 exhaust oil
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Vice-Chairman (West), Michigan Chapter NCRS
71 "deer modified" coupe
72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
2008 coupe
Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.- Top
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Re: 1979 L82 exhaust oil
Patrick, When I bought the car the engine had just been rebuilt by the previous owner in 2006. I have the paper work cam part # mc1991, no part number listed for the pistons just flat top. The car is a four speed. yes edelbrock carbs. Ron- Top
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Re: 1979 L82 exhaust oil
In a nutshell (and I'm not trying to be "mean" with this), I think it's way overcammed and overcarb'ed. As a result you're getting a fair amount of unburned hydrocarbons out the end of the exhaust and this will not improve with the current combination. I will venture to say that the carbs, intake and cam would have to be replaced to correct this condition, not including any tuning that needs to be done with the timing, etc. You could still end up with more power than stock if everything is chosen as a system - and I'd bet you would end up with a lot more usable power than you have now.
You could get a long way just by going to a single 4 barrel intake and carb of reasonable, useful size and not lose a bit of power. However, that cam is going to keep it a dog a normal driving speeds unless you want to swap in a 4.11 rear end to keep the rpms up - and I would not advise that. New cams are cheaper than rear differentials anyway.
PatrickVice-Chairman (West), Michigan Chapter NCRS
71 "deer modified" coupe
72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
2008 coupe
Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.- Top
Comment
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Re: 1979 L82 exhaust oil
That's a nice, mild hydraulic cam with very similar duration as the L79 and L82 cams, with only very slightly more lift, and on a 112 LSA, which is 2 degrees tighter than that of the L79 and L82......both 114. This will give the engine a slight bit more lope than either because of the additional overlap. The tighter LSA will be compensated for (in the case of the L79 application) because of the additional 23 cubic inches over the 327 run with the L79.- Top
Comment
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Re: 1979 L82 exhaust oil
That's a nice, mild hydraulic cam with very similar duration as the L79 and L82 cams, with only very slightly more lift, and on a 112 LSA, which is 2 degrees tighter than that of the L79 and L82......both 114. This will give the engine a slight bit more lope than either because of the additional overlap. The tighter LSA will be compensated for (in the case of the L79 application) because of the additional 23 cubic inches over the 327 run with the L79.
First problem is the intake and dual carbs.
Just my thought.Vice-Chairman (West), Michigan Chapter NCRS
71 "deer modified" coupe
72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
2008 coupe
Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.- Top
Comment
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