Well, after alot of thinking and lucking up and having someone give me a complete spare 2.4L LD9 engine. I think I am gonna run a turbo. I have many questions though...
First, I am building the engine with eagle rods, wiseco 9:1 pistons, 1mm oversized stainless steel valves and the stainless reenforeced keepers, secret cams, clevite main and rod bearings, and I will run a port and poish on the head. Is that good enough for the internals with the hopes of 8 or 9 psi?
second, I found a few turbos for sale here locally and some on the net. I have a friend who works in a shop dealing specifically in rebuilding turbos. So getting it rebuilt inst a problem. But I have seen some turbos that are water cooled and oil cooled and I have seen some that are just water cooled and some that are just oil cooled. What would be my best bet? What do the majority of people run when it comes to keeping the turbo cool? Do I want a turbo with an internal or external wastegate? would an old saab turbo be ideal?
lastly, What types of fuel mods are nessesary? I know that you can retard the timing with a progrmmable MSD DIS 2 so would this and the SAFC-II be good enough. This is the part that confuses me the most. I know I will need bigger injectors and stuff so please help me and give me some guidance. Please dont flame me either I know these are newbie questions, and I am a newbie when it comes to this, but I have to start somewhere. I will post pics of the engine so people dont think I am bull shioting about this either....
Can you keep up?
1. Definately, a nice built bottom and top end like that will support much more with the proper tuning.
2. You want one that is at LEAST oil cooled, water cooling is your option. As far as wastegate goes, its up to you really. The external ones have more adjustability, and offer less boost creep. Internal ones are good for lower psi setups.
3. Depends, depends on how much boost you want to run, and on what turbo. Make a horsepower goal and size injectors and fuel management for that, since fuel management is based on horsepower, not PSI. I'm hoping to get 10-12psi out of my SAFC-2, but I think I'll need bigger injectors (my current ones are 30lb/hr).
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