What is the best timing for the most low end power on a stock 87 GTA? im currently at 5 or 6 degrees and it seems alright but not quite as powerful as i think it can be. any help?

 

i think a few people have had alot of good luck with timing around 8 BTDC

 

ok ill try that.... but whats the stock timing supposed to be? anyone know at all?

 

in car craft there was an article on the tpi engines and they said that if you advance the time about 10 btdc that they got the most power can out of it but you must run a higher octane of gas like 93 or it will ping(i know from exprience) and another thing you can do to pick up a tenth or so is to take a hole saw and take you air filters out then take out the little rounded flaps that protect the filters form the rain coiming the air box out, then drill holes in the air boxand put those flaps back in

 

ok thats a good idea but im just looking for stock timing or whatever is best for the most low end power. i dont have the money to run 93 octane yet, lol.

 

When i want my car jacked up like a mother, i just turn the distributor all the way to the right (or was it left?) and go out and roast some rustnags.










But seriously, there is no one answer for what base timing to run. It is something that can ONLY be determined through test and tuning. And butt-dyno doesn't count, if you're not at the track or measuring performance with a scan tool then you're just playing with yourself. And if you don't even have a scan tool to look for knock counts, odds are you're only going to take yourself backwards.

 

dude if you can't afford premium gasoline then why worry about what timing to run?

6 btdc is stock on my 87 vette and i'm assuming the same for yours since even in my 82 Z CFI car was 6.

 

well i guess ur right. ill start running premium all the time after this tank. thanks for the info as well.. ill prolly time it tonight since i have nothing else to do, thanks for all the input guys!

 

the 10degrees btdc is what car craft found to be the best power but they said every car is different so to test it out