Can't choose between 2 turbos
@RustyRatRod
I think it would be interesting to do the big bang because we could learn more about what the weak link is.
I'll be your Huckleberry! LOL!
So, I have this Procharged 408" engine in my long mothballed 1970 'cuda. Nothing wrong with the engine, it was more the money, body, and the wiring as to why it is sitting. Also ignition and timing control parts mismatch (MSD 6A w/ no boost retard controller).
I am wrapping up Arthur's Duster and the Cuda is finally going to the bodyshop next summer. I was planning on revamping the 408" and putting the right charge air cooling parts on it, an MSD Programmable box with a MAP sensor, and a Snow water methanol kit. BUT, I just bought
@Johnny Mac 's twin turbo set up he was going to put on his late Charger. I have a MP 380hp crate 360 Magnum block for a back up. The Procharger has thrown a belt on two occasions and, I dunno, maybe there is some other excuse for switching to turbos.
Exhaust (Turbo Manifold) Flange: T3 T4 4 bolt Flange Patterns
Exhaust (Downpipe) Flange: V-Band Flange
Cooling Type: Oil Cooled
Wastegate: Internal Wastegate
Horse Power: Boost Horse Power up to 420HP
Compressor:
Trim: 44
Inducer Diameter:50.5 mm
Exducer Diameter:76 mm
A/R:0.5
Turbine
Trim:73
Inducer Diameter:65.5 mm
Exducer Diameter:55.9 mm
A/R:0.63
The OP should key in on my engine's internals to build a reliable combo up to it's dyno proven 650hp / 600lbft :
1971 360 block (high nickle, blue printed, good wall thickness). K1 forged crank, K1 forged h-beam rods, forged Diamond Racing pistons. Hughes main girdle, Hughes ported Edelbrock heads, Cometic head gaskets, 224 @ .050 duration / 114 LSA, bushed lifter bores and hyd. roller lifters, studs throughout, Super Victor intake, 750 cfm blowthrough carb, ported oil pump, 1.5 roller rockers, ....
Again, it hasn't ran in 7-8 (9?) years. I have primed the pump and rotated it 1-2 times a year but I do plan to tear it down and check everything. It has less that 10,000 miles on it. It ran no more than 7.5 psi and I plan to not go past 10 psi with the turbos. I am happy with the power it had but I would like to dyno it again with the twin Hong Kong spinny bois and do not want to exceed 700hp for the block. Will it live?
I am worried that the turbos may be too big actually, says they're good for 420hp. So, x2, minus intercooler loss. AND, they might be just right as I am not well versed with turbos or how to decipher all the numbers.
I want to try to fit an intercooler if at all possible but I do have the new water methanol kit. I also kinda want to stick with the carb because I have the MSD box and carb that is for boost already ($$$). However, if a Holley FI or FiTech system will help make it safer under boost I will be inclined to go that route.
Hopefully, by next winter the engine and car will be revamped so be on the lookout for an LA engine D1-SC Procharger kit for sale, possibly with the blowthrough, MSD Programmable 6, and water methanol kit.
