Enfield
Member
The car: 2007 GT convertible with 96xxx miles. Good compression on all cylinders. Completely upgraded suspension with square wheels/tires. Interior and top have been refreshed. No rust.
Engine mods: JLT3 CAI, UDP's, BBK long tubes, BBK catless X.
Why add cats?: Owner's recent physical issues prevent enjoyment of this car's manual transmission. In order to sell in the Mid-Atlantic, cats are needed.
Current tune: Car came with Diablo Predator v.9r07 with numerous canned tunes and an installed "87 octane street tune". The car starts and runs flawlessly, idles well, and delivers ~27mpg at 70mph, all on 87 with 10% ethanol. Plugs stay clean and there have been no CEL's.
Engine mods and tune were installed at AM back when they did that. I have called AM tech and they have stated that their BBK catted X can be added with no change to the tune needed.
As it seems likely that the current tune has disabled 02 response, I am concerned that the 02 sensors and the cat may not work well together in the long run: sensors too hot or cold -- possibly leading to problems with the cats.
So, what to do? The car will be sold by a reputable independent dealer, and neither of us wants to make the buyer unhappy. No shops around here have sniffers, but a local indy mechanic has a couple of current Snap-On engine diagnostic tools, and he has offered to look for possible problems after cats are installed. And there's the Predator. He knows how to reset parameters.
I have tuned and raced many cars from 1970 to now, but my last American sports car was a 1970 Z-28 back in that era. I know this car is not as highly modified as most other members' cars, but you guys have been very good at advising me on suspension upgrades - and in providing good, used parts, too.
All suggestions will be cheerfully acknowledged. TIA,
Enfield
Engine mods: JLT3 CAI, UDP's, BBK long tubes, BBK catless X.
Why add cats?: Owner's recent physical issues prevent enjoyment of this car's manual transmission. In order to sell in the Mid-Atlantic, cats are needed.
Current tune: Car came with Diablo Predator v.9r07 with numerous canned tunes and an installed "87 octane street tune". The car starts and runs flawlessly, idles well, and delivers ~27mpg at 70mph, all on 87 with 10% ethanol. Plugs stay clean and there have been no CEL's.
Engine mods and tune were installed at AM back when they did that. I have called AM tech and they have stated that their BBK catted X can be added with no change to the tune needed.
As it seems likely that the current tune has disabled 02 response, I am concerned that the 02 sensors and the cat may not work well together in the long run: sensors too hot or cold -- possibly leading to problems with the cats.
So, what to do? The car will be sold by a reputable independent dealer, and neither of us wants to make the buyer unhappy. No shops around here have sniffers, but a local indy mechanic has a couple of current Snap-On engine diagnostic tools, and he has offered to look for possible problems after cats are installed. And there's the Predator. He knows how to reset parameters.
I have tuned and raced many cars from 1970 to now, but my last American sports car was a 1970 Z-28 back in that era. I know this car is not as highly modified as most other members' cars, but you guys have been very good at advising me on suspension upgrades - and in providing good, used parts, too.
All suggestions will be cheerfully acknowledged. TIA,
Enfield
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