new 4l80e press test w/wo mod
Thread Starter
Joined: Sep 2007
Posts: 4,187
Likes: 292
From: woodbine, md
new 4l80e press test w/wo mod im making some progress on the trans, 4l80e w/man shift kit, but
w/o mod, 1200 rpms
P-165
R-170
N-165
D-60
3-95
2-100
1-95
w/mod, 1200 rpms
P-105
R-150
N-105
D-55
3-85
2-90
1-80
the pressure goes up with rpm's as it should, 175 depending on what gear, but i still have a delayed 2-3 shift-i also noticed that the engine seems to labor some above 4k rpm's, almost like the trans is fighting it a little, but kind of hard to tell-i think the winter blend for the fuel is leaning out the motor a little, i think, the supercharger doesnt like it, may add some 110-i dont have anything to ck the pressures against, so does it seem normal-my book doesnt list any pressures, but the book for 400's lists higher pressures
i may pull it down, tighten up the clutch packs, rem inner seal on the direct?
w/o mod, 1200 rpms
P-165
R-170
N-165
D-60
3-95
2-100
1-95
w/mod, 1200 rpms
P-105
R-150
N-105
D-55
3-85
2-90
1-80
the pressure goes up with rpm's as it should, 175 depending on what gear, but i still have a delayed 2-3 shift-i also noticed that the engine seems to labor some above 4k rpm's, almost like the trans is fighting it a little, but kind of hard to tell-i think the winter blend for the fuel is leaning out the motor a little, i think, the supercharger doesnt like it, may add some 110-i dont have anything to ck the pressures against, so does it seem normal-my book doesnt list any pressures, but the book for 400's lists higher pressures
i may pull it down, tighten up the clutch packs, rem inner seal on the direct?
Still not right with the mod unhooked you should see something near max line at idle in drive 175 to 235 psi
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