Help With Vinci Tuner
Help With Vinci Tuner Hey guys....I need some peoples opinion.
I first set the Fuel Up 5% and the car was great.
I tried @ 10% higher, and the car sounded awesome but i dunno somehow i felt it didn't pull as hard in second gear.
I put it back to 0% and it seems ok but for some reason i keep thinking that 5% was the best.
Can anybody say that this would make sense? Like does a lil bit extra fuel help out any? Thanks
I first set the Fuel Up 5% and the car was great.
I tried @ 10% higher, and the car sounded awesome but i dunno somehow i felt it didn't pull as hard in second gear.
I put it back to 0% and it seems ok but for some reason i keep thinking that 5% was the best.
Can anybody say that this would make sense? Like does a lil bit extra fuel help out any? Thanks
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
if the car was running too lean then makes sense... the granatelli is most likely leaning you out quite a bit (lean = power, too lean = loss of power, knock, potential boom)
As with anything though, too much fuel also hurts performance... LS1s seem to like 12.8:1 AFR up to 13.0:1 AFR for max power w/tuning.
Not sure what your actual AFR is (would need a wideband for that) but if the 5% setting felt better then leave that in ... hit up a track and try all three of them...
Always better to error on the side of overly rich though IMHO
But yes, what you're saying makes sense... fuel mixture plays a very important role in WOT performance (as does timing)
As with anything though, too much fuel also hurts performance... LS1s seem to like 12.8:1 AFR up to 13.0:1 AFR for max power w/tuning.
Not sure what your actual AFR is (would need a wideband for that) but if the 5% setting felt better then leave that in ... hit up a track and try all three of them...
Always better to error on the side of overly rich though IMHO
But yes, what you're saying makes sense... fuel mixture plays a very important role in WOT performance (as does timing)
