Recent content by Nick88

  1. Nick88

    Dual exhaust question.

    I get that back pressure is bad in any circumstance, I should’ve worded it better, I was more saying add them to almost simulate a 2.25 system with bigger pipe by using a smaller muffler by changing the flow rate in a way.
  2. Nick88

    Dual exhaust question.

    I want to completely get rid of the factory 2.25 Y pipe. I don’t want to spend a whole bunch to get a 2.5 inch kit, but I have a ton of left over 3 inch exhaust piping. My question is, with a 1988 TBI 350, I know 3 inch duals is massive massive overkill, but if I use some 2 1/4 inch mufflers I...
  3. Nick88

    Gas Mileage

    Very possible, and I really have no way to know, but my numbers are higher than the factory rated fuel economy specs, which many even call wishful thinking. It could be just worn parts fixing up making it run better and more efficient, which I don’t doubt, but the numbers are much better, so who...
  4. Nick88

    Gas Mileage

    Sorry the picture is small, I can’t really see, is there a hole burnt through causing a short? On mine, I noticed some black around the edge of the metal frame on the yellow, but I wiped it off and it hasn’t come back. I’ve read a lot of ACCEL horror stories, but also heard a lot of good, seems...
  5. Nick88

    Code 32 with a high flow exhaust.

    I’ll try disconnecting the egr, but I’m becoming much more suspicious of my o2, despite being a Delphi unit, I’ve noticed it acting funny, such as dropping out of closed loop once I stop, the engine kicks into o2 at idle when warming up a lot and starts bogging then kicks out and runs better...
  6. Nick88

    Gas Mileage

    I understand that a lot of it is bogus, hence why I quote that they “say” it will, most of it I doubt but it has worked for me, may not be all claimed benefits, but some work for me. I’m tracking fill up to fill up style, fill up at same station and track the mileage I go, not straying from...
  7. Nick88

    Gas Mileage

    I’m running cooper evolution m/ts they are pretty non aggressive mud terrains that are very quiet at max pressure. Quarter mod is when you slip a quarter in with the spring to up fuel pressure a few psi. Old mpg was around 15-16ish highway, city I’m not sure
  8. Nick88

    Gas Mileage

    It’s an auto 700r4, but with different gearing and tires it shifts pretty early, doesn’t see high rpm often so it helps with economy a lot
  9. Nick88

    Code 32 with a high flow exhaust.

    Very interesting, now I’m stumped, I was driving with the exhaust cutout fully shut today and it popped code 32 getting off the parkway when I was going around 40mph. What should be my next step? I verified solenoid operation, verified egr operation, and I verified the ports aren’t extremely...
  10. Nick88

    Code 32 with a high flow exhaust.

    Just put up a post on fuel economy
  11. Nick88

    Gas Mileage

    With these trucks, gas mileage is not a strong suit, although, fuel economy can be increased for relatively cheap and especially with the price of gas, will save you a lot of money. I did some mods to my truck which helped my 350 TBI in a 1988 square body Blazer get in the 20s cruising on the...
  12. Nick88

    Code 32 with a high flow exhaust.

    Yes once I start rolling it immediately kicks back into closed loop.
  13. Nick88

    Code 32 with a high flow exhaust.

    Forgot to update again yesterday, but I drove in field service mode with cutout shut. The fuel mixture was pretty much the exact same, but interestingly the truck still dropped out of closed loop immediately anytime Id stop, I'm not too concerned though as based off of the blinking of the SES in...
  14. Nick88

    Code 32 with a high flow exhaust.

    update- just took the parkway with cutout shut, much more peaceful quiet drive as everyone can probably imagine. More importantly I did not get a SES while holding it around 50-55 the whole time with almost no movement of the pedal. Obviously this isnt 100% conclusive as maybe somehow today it...
  15. Nick88

    Code 32 with a high flow exhaust.

    interesting feedback about my o2. I originally thought it was getting too cold, but the under 4mph reason may be more realistic. I think i forgot to mention but pretty much the same second I hit the gas out of the stop it kicks into closed loop. I guess we will see tomorrow afternoon with cutout...
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