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Junior Member
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Discussion Starter #21
ynot, the F L S F setting is 2.60 mm, the F T S F setting is 3.10 mm. Should I leave the torque setting alone or?
 

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The other guy
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3,936 Posts
If they are still at stock settings just screw them both out 5 turns and run it. You'll still have the same squish pressure on the torq spring which is all your after. You can also follow the article in the Tech section to max it, but you're real close at five out :)
 

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Junior Member
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1,811 Posts
:thinkingthanx!!sledman i believe that 3421,7fb was the LAST WILD nozzle and pump:peelout:bawl ,before EPA begins regulations, between a 400 7fb and 425 7fb there is no difference, the 25 hp to let it do air to air VS jacket cooler:sly :punish
That's right....the 7FB 425 actually had a lower rack setting than the 7FB 400. ATAAC made the 25HP like you said.
 

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:thinkingthanx!!sledman i believe that 3421,7fb was the LAST WILD nozzle and pump:peelout:bawl ,before EPA begins regulations, between a 400 7fb and 425 7fb there is no difference, the 25 hp to let it do air to air VS jacket cooler:sly :punish
Is anybody on this post still. You all seem very good with the b engine and I need help. I’m in framing mine a 1985 b Kenworth
Engine 4mg95612
Pump 4w2427/eco3/051800
Piston 7eo539 15.2:7 comp I think
Told it’s a low horse engine has the 199119 turbo and actually pulled great. Truck is water to air and had 5 different nozzles. I’m wanting at least 400 horse and figured SmokinCAT or someone can tell me what nozzles to get. Was told or3424. I’ve never been on here but from what I’ve read the turbo is an upgrade already
 
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