Well to start I own a 1973 Ford pinto with a turbo turd 2.3 from an 88 t bird with brown top 35lbers running 18 psi stock ihi,front mount intercooler,custom upper/stock lower all mated to a c4..........that was until it blew and left !e stranded, now she's in pieces for a rebuild and freshening up the motor while Im at it, I'm going to help this poor car out and give her some more get up and go.Now I will admit I am fairly inexperienced with turbo cars and mega squirt systems as well as the pimp but have posted here to help on my install,start,tune and drive. Please excuse my dumb questions
Parts I have in a box I have yet to install:
80lb injectors Caltec traction bars Wideband Fuel pressure gauge PIMPxs ecu Expansion connector Zex nitrous kit Cam sensor Krban regulator 340 fuel pump Holset hx35 Tial 44mm wastegate Tial 50 mm bov Custom header (not ebay) T5 5 speed Stage 2 clutch and throwout
What I truly am worried about and do not quite get is the Bob and wastegate springs and the outcome and affect they have on the motor and more importantly clueless on which ones to start with and how to diagnose if a spring swap out is due
Wastegate spring dictates the minimum amount of boost it will run at wide open throttle. You can raise it above spring pressure with a boost controller but you can't go below spring pressure. Most 2.3T's run a 10 to 15psi spring unless it's a race car and it's running crazy high boost, or they are using the spring as their "max" pressure (30psi spring to run 30psi max for instance).
BOV spring rarely needs to be changed. In general you don't want the BOV to be "open" at idle as this allows unfiltered air into the engine. So the minimum amount of spring that will hold it closed at idle is fine. Spring pressure also dictates how "easy" it is to get it to blow off when you close the throttle but this is typically more of a byproduct than a "goal" when selecting a spring to use.