Bought a Dragonfire BB 857cc kit(yea I know, why waste the $, add more boost) that I probably didn’t need but oh well. I did buy a HotRods HD crank and had it pinned and welded. Was recommended by Nate at Alba to run stock cam. Because I’m going turbo on an 857BB kit, I had to have JE make some custom 9:1 85mm pistons(could not find any at all).
Turbo clutching:
I bought an STM clutch kit from K&T with a black drive clutch spring (white and silver/grey paint markings) and red primary clutch spring(orange and silver/grey paint markings) and 3 cam arms pre-weighted with one tungsten washer in heel, 4 steel washers in midrange, and 2 steel washers in toe.
Is this a good starting point for my clutch set up for turbo or should I buy a different drive clutch helix also, and or add cam weight somewhere?
Turbo fuel:
I have a 190lph fuel pump, 1:1 rising rate regulator, but I think I’m in need of some 42lbs/hr injectors to run 12psi of boost? I had a link on a thread to some 42lbs injectors and I can’t find it anywhere, can someone give me a vendor or somewhere I can order these please?
I bought a used K&T Turbo off eBay(probably not smart) that I have not installed yet and it appears I didn’t get all the parts but I think I’ll be ok. I have the instructions but they are not very descriptive and there’s not a parts list.
I don’t have the 3rd injector intake plenum. I’ll have to look at my stock throttle body, but I thought there was a nipple on the bottom with a vacuum hose hooked to it, is this where I could run my BOV too?
I also bought a PC-V and Dynojet WB2 to tune the fuel(that’s a whole other animal :)) I have an aluminum air intake piece that came with the turbo that has a 3bar MAP sensor on it, but it also has a 90degree barb fitting where the crankcase vent/rocker panel vent hose connects too. As far as I can tell in the instructions, this aluminum plenum goes between some tubing from the clean air intake side of the turbo up to your air filtration set up. Is this the proper location for the MAP sensor? How does the PC-V sense MAP if the MAP sensor is on the air intake tube? Shouldn’t it be on or closer to the intake manifold, like between the throttle body and the intake manifold?
Could also use some help with how all the small tubing runs for boost control. The instructions I have are not very clear, but this is what I think I have figured out. There should be a line that runs from the turbo itself up to the wastegate? Then there should be a line running from the BOV to the throttle body on the intake manifold side of the butterfly which you put a T fitting on and run to the boost gauge(I think?). The wastegate should be between the innercooler and the throttle body correct? Would have been nice to get some decent pics in the instructions I got but the most informative detail in my instructions is how to replace the stock fuel pump, so I could use some general vent and boost control line install advice.
I don’t plan on running more than 12psi of boost, is there any other engine mods or add-ons I should be aware of for running a turbo’d BB set up?
Sorry for all the questions, but I know there’s far more expert knowledge out here on forums than I could accumulate, so thanks in advance.
