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  1. simp5782

    NHC 250 Turbo Conversion in M923

    That is a pulse exhaust manifold so it's gonna sit higher than a standard big cam one. Looks like it just ducks out thru the same fenderwell hole
  2. simp5782

    NHC 250 Turbo Conversion in M923

    You need a Big Cam exhaust manifold and a HT3B, 4LHR, T46/ST60, HT60 turbo. If you dont care about the $350 manifold cost then just buy pulse manifold from a diesel distributor. N14s came with HT60s which is just slightly more flow than an HT3B. 4LHR/T46/60s are 350hp turbos If you want both...
  3. simp5782

    NHC 250 Turbo Conversion in M923

    Small cams can become 400 magnums. It's a small cam with big cam iii parts.
  4. simp5782

    NHC 250 Turbo Conversion in M923

    Well I've put more miles towing stuff behind a 923 with an NHC250 than anyone on this site or the military for that matter. With it pushing 215 to 225 on a #16 button and no Pyro cause I know how to not lug the motor and only give it what it needs to maintain what it is pulling. Motor had well...
  5. simp5782

    NHC 250 Turbo Conversion in M923

    Anything under You can run 215 to 220 injector pressure on a small cam
  6. simp5782

    NHC 250 Turbo Conversion in M923

    The rail pressure gauge setup is a 1/8th inch pipe fitting and you can use any hose you want. I have a 1/4" 3200psi hydraulic line to a liquid filled gauge. The hose for the fuel feed on the pump is half inch. The bigger the better. You would have to upgrade the tank feed line to benefit from...
  7. simp5782

    NHC 250 Turbo Conversion in M923

    You need to drill the ball out on the throttle linkage where it goes into the pump and turn it counter clock wise to adjust for the new button. it helps get more fuel but to not turn it too much.
  8. simp5782

    NHC 250 Turbo Conversion in M923

    Or take it off. Have the button lowered and the fuel metering adjusted properly so it wont just dump too much fuel. Sent from my SM-G935P using Tapatalk
  9. simp5782

    NHC 250 Turbo Conversion in M923

    You can use Multifuel engine mounts and raise the cab a few inches then space your hood hinges up a little bit to get more clearance.
  10. simp5782

    NHC 250 Turbo Conversion in M923

    I know where a good many NTC 335 and 400 Magnums are listed for sale. running for under $1200. Granted they are old but still well capable engines.
  11. simp5782

    NHC 250 Turbo Conversion in M923

    Intake system, dual fuel line mod, modified pump. Few other tricks are out there to open her up Sent from my SM-G935P using Tapatalk
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