Hi all. I found it hard for awhile deciphering what our US bros were talking about. I thought I'd start a list of the common mods that I'd heard of. Can others please add stuff to the list. The aim is to let new comers catch on quickly to F250 lingo.
6637: based on the Baldwin filter number, it is a filter pod which replaces the stock filter. It can be run naked, but most now put a washable fabric cover over it called a '
Pete's cover'
50 cent mod: some model's plug connectors inside the heads have clips that don't clip. Our US Bros grind off 2 quarter pieces and slide them into the plugs to force the clips down to keep them plugged in tightly. In Oz, anyone needing to do this could do it with 40 cents - as in 2 by 20 cent coins.
Hutch mod and Harpoon mod: mods inside the fuel tank to stop the foamy fuel oil being returned to the tank come back near the fuel pick up.
Max A/C assist: F250's run coolant through the cab heater even when the a/c is on. There is a mod where a vacuum actuated tap turns off the coolant to the cab heater when the HVAC control is turned to max a/c. The higher spec US models and Expedition have this as standard.
AIH delete: The Air Intake Heater (AIH) is an electrical element, like an old kettle element, designed to heat the charge air in extremely cold conditions when prolonged idle is used. The AIH caused about a 20% restriction on the inlet. The AIH is obviously not used/required in temperate climates.
CCV mod: The Crank Case Ventilation takes air from on top of the oil in the crank case, which is pressured by combustion blow by, and emitted through the 'dog house' shaped box (called the dog house) at the rear of the left head. In stock form this oily smoke is routed into the air intake between the filter and the turbo. The smoke ends up leaving an oily film in the IC pipes, boots and IC itself. The CCV mod can filter this oily smoke through a 'catch can' and either return the filtered smoke to the inlet, or vent to the atmosphere. Whatever is done IT IS CRUCIAL that the CCV pressure coming out IS NOT RESTRICTED (otherwise a seal somewhere will blow, usually the EBPV seal on the turbo pedestal);
EBPV delete: Exhaust Back Pressure Valve - is used with the AIH to retain heat in the engine. However the EBPV can also be used by tuners in a DECEL tune to be an exhaust brake. The EBPV is a butterfly in the turbo outlet and causes a restriction when not is use. For a free flowing exhaust and lower Exhaust Gas Temperature (EGT) the EBPV can be removed. This can be done cheaply by modifying the stock turbo outlet - rip out the EBPV and weld up the holes, rip out the EBPV actuator rod from the turbo pedestal, cut a thread and insert a plug. Or you can buy a turbo outlet without the EBPV - called a high-flow outlet, and a 'delete pedestal' which has no EBPV actuator built-in and replace the stock item/s.
Sticks: means fuel injectors. Another popular mod is to upgrade the fuel injectors. After market injectors can be 'single shot', rated as number/number or hybrids. Once you go to big injectors then you are in 'big oil' territory where you will need a larger capacity High Pressure Oil Pump (HPOP) to move enough fuel. The stock HPOP will run Stage 2 injectors.
38R: is a bolt on bigger turbo charger - it has ball bearings on the turbo shaft and larger diameter turbo and inlet.
IC boot kit: Inter-Cooler boot kit - there are 6 boots connecting the 1) inlet turbo to the IC pipe, 2) the IC pipe to the IC inlet, 3) IC outlet to the IC return pipe, 4) IC return pipe to the turbo spider, 5&6) turbo spider to the inlet manifolds. The stock Ford connectors are flexible rubber bellowed hoses. After market kits are much thicker and sturdier - they don't balloon under pressure.
Plenum inserts: the stock inlet manifolds are pressed metal. There is a chance that over-tightening the clamps will collapse the thin metal manifold inlet pipe. The plenum inserts are billet machined donuts with a collar which slide into the stock inlet hole.
Turbo back: The full exhaust system from the turbo outlet back. Larger diameter pipes from the turbo outlet down to below the cab floor are notoriously hard to fit.
DP Tuner: An engine management system re-programming modification that allows pre-set 'tunes' to be selected for the engine management computer. Changes can be made to fueling, transmission shift points, and throttle response based on the various sensors on the engine and transmission. The DP Tuner is a popular brand of engine management re-programming that allows the customer to order many different engine tunes and change them on the fly.
Superchips: A simple engine management re-programmer which allows the unit to be connected and locked to a particular vehicle. The Superchips handset stores and deletes the stock tune from the vehicle and replaces it with one of a set of tunes based on yes/no answers. The vehicle can be returned to stock. The Superchips also allows fault codes to be read and deleted.
HPX: High Pressure Oil (X) cross over - a pipe linking the high pressure oil galleries mid-head to each other to equalise the high pressure oil pressures in each of the heads.
FRX: Fuel Rail X-over or Regulated Fuel Return - pipes linking the fuel passages at the end of each head back to the fuel return path via a pre-set pressure regulated valve - allows air/foamy fuel trapped in the heads to escape and get back to the tank rather than being forced through the injectors. Better for the injectors and smoother running engine are the claimed advantages.
OCR: Overboost Code Regulator - only allows up to a set maximum pressure into the MAP sensor - stops the overboost fault code, de-fuel, and the Check Engine Light coming on for the overboost situation.
Zoodad mod: Cutting an air hole in the radiator shroud right in front of the air filter spout. See:
https://www.ford-trucks.com/forums/51...ntal-rain.html
foil delete: Some trucks have a foil coating on the IC tube closest to the air filter. Scrape the foil off and polish up the IC tube and you have done the 'foil delete' mod.
billet plenums: stronger inlet manifold replacements for the thin pressed metal stock inlets. Billet plenums don't need the strengthening plenum inserts which are recommended when using aftermarket IC boots and standard inlet manifolds. As the plenum inserts fit inside the standard opening they do cause a restriction. Billet manifolds mean you get the increased strength without the small restriction of plenum inserts.