----- Original Message -----
From: rob
To: rot@autox.team.net
Sent: Saturday, March 05, 2005 4:43 PM
Subject: dyno running lean
Hello folks I have just spent some time tunning. I can get a good Air/fuel
curve and power all the way up to 5500rpm At 5500 she is still making power
but the A/F is shooting up into the high 15's --16's and i just have to back
out The fuel pressure remains at 4 lbs the gage has be ckecked aganst
another >> the jet changes will only make me rich at the lower rpm she'll
stummble to get cleaned out but still goes lean . We have been all over the
board with jetting .With aprox 30 hours of tunning We have not been able to
get a way from the high A/F at the higher rpms Drilling the pump jet helped
but only put off the running lean >>Its a Tr-6 Moss's 40 over pistons
stock thre out except for Good parts 1.55 roller rockers with 40 dcoe's
11.5 to 1 c/r >>aluminum fly wheel stock clutch and 4 speed curently at 155hp
to the wheels thanks rob
|