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Porch Pup
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About brettj3876

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    Old Iron Expert
  • Birthday 09/14/1993


  • Location
    20 miles south of Binghamton 35 mi N of Scranton

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    Besides trucks. Guns, atv's, girls

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  1. 15-40 Rotella. Change every 15k. Both trucks never use more than half a gallon between changes. Works good for us
  2. The s475 turbo i suggested is 600-700 brand new from Borg Warner. But you do need bigger injectors to run it. Stage 2 or 3 from rochester would work good with that setup. Or call k&s and ask what injectors they would use for the setup On a 93 with stage 2 injectors i see 42psi with that turbo from 1400-1750ish before it starts to drop off
  3. Instead of OEM injectors look up KS fuel or rochester diesel. Ks is cheaper than rochester. That's the way I'd go if wanting more horse. Leave maxi file in it. It produces a more usable power band than say a straight 460 file. If upgrading the turbo look at the yt467 or s475 BW Personally i like the big S475 1.32A/R. It's a tad laggy off the line (not too much) it pulls good down to 1300 and up top 1500-1750 rpm is where you see the advantages over the smaller turbo
  4. Your temps are fine. We run a little bit bigger turbo (s475 1.32ar) and have the same temps as you. As long as we keep it above 1400 the pyro stays below 1000. 1650-1700 on a hard pull she's right around 900-950 and on flat ground around 700
  5. I didn't realize e6 pump would mount up? When were swapping out the vmac1 for the mech pump were getting rid of the econovance all together. Takes some hp to turn that. Mount the pump and get new lines is all. As for the timing I'd stay around 17°. The guy that built our pump is very knowledgeable and he said right around there. Too far advance and you'll lose all the low rpm grunt. Better to be a tad retarded than too advanced. You can fool the computer on the vmac and mess with the timing. The TEM (timing event marker) drill that out and in large the 2
  6. Went from full mechanical injection with the Bosch P pump (p7100) to the semi electronic Vmac 1&2 with the electronic gov housing. Fly by wire. Timing controlled with econovance. Ran off of oil psi with a gear on a swedge basically to advance/retard timing as needed, to satisfy the EPA. Then came fully electronic Etech with unit pumps ran off the cam. Really it's apples to oranges comparison the old E-7 to the E-tech. The best engine mack ever made was the mechanical E-7 and vmac 1&2. The E tech doesn't even sound like a mack except a tiny bit at idle.
  7. Fumble with the 1939 J our 93 was doing the exact same thing. Would randomly shut down but flip the key and it would start right back up
  8. Throw a s475 on and hang the F on. You got enough fuel to spool it
  9. Post turbo probe? I would keep try to keep it under 1050. Our says 1025 max and 99 says 1100 max. 1200 won't hurt it for short bursts but deff don't pull a couple mile grade like that
  10. Your boost sounds a bit low. Think it should be 28 at the min to 32. Don't have the book in front of me now. They have 2 piece piston. Steel top/alum skirt. Give mack the ser# to find out what comp pistons it has. They were all over the place in diff years. For example the 93's 250-400 all had 16.9:1 (conflicting info around) some literature says 375 and up 15.3 and below that 16.5 but mack had changes over the yrs. One book said our 93 was 16 5 and another 16.9. It ended up being 16.9:1 (591 tops) I doubt it's 16.9 could be 16.5 15.7 or 15.3
  11. Throwing any codes? The boost i feel should be higher. Someone familiar with 427 should chime in and say for sure what boost you should be seeing but IMO it seems off. If you don't have access to code reader w/Vmac3 card send me a pm. I have pro-link 9000 with Vmac3 card
  12. 28 psi seems a bit low. I thought 427 file was somewhere around 34-36psi. We're 10 min south of Binghamton Don't listen to those guys. We've dealt with d&w before. By law they can't do any hp increase due to emission regs. I haven't heard of injectors cracking and there is a lot of guys running stage 2 & 3 on here. Antrim has dyno'd a few E-7s putting 700+ to the ground. Since you just put new injectors in I'd go with the Blixxton. It made the 460 a completely diff animal. I think you'll be happy with just that. Seat of the pants dyno felt like 100+ hp easily.
  13. EGR thanks to the EPA. A little bit of $$ will fix that permanently
  14. You can pick up those 475's for 600 new. In order to gain anything though you have to do injectors at the same time otherwise that'll be too much turbo. The last few days up here in the 90s we haven't had any heat issues either. Turn the fan on bottom of a hill and water temp maybe hits 215-220 on a hard pull running close to 80k
  15. Leave the 427 file in it. Has a better torque curve than the 460. Antrim in Greencastle pa is really good performance shop that does a lot of E-7s. Blixxton has a plug and play tuner but im not sure if it works on CCRS E-7? We put one on a 99 460 and it was night and day difference in power and gained .75mpg. Huge puff of smoke between shifts but clears up real quick and 850-875 is hot as pyro gets and 38 psi on a cold morning. Some guys here with bigger injectors are pushing 45+ psi. If you do a lot of stop and go city driving the BW S467 (1.15 A/R i believe) has good throttle re
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