hey guys i just picked up a 04 ctsv (ls6) and id like to do a twin turbo setup on it. im going to stay with a stock motor for this year(600ish rwhp), then do pistons and rods down the road. so id like to just buy good parts now so i dont have to buy things twice when i turn up the power later.

:manifolds
i will be making some custom sch10 tubular manifolds.

:wastgate
pt46mm x2

:turbo
this will be a street car so i dont want to go to big here and give up spool for over all power.needs to be v-band in/out (only avl. in .63 or .82) the 3 turbos i have in mind are the billit. 5857,6057 and the 6262.

:12 volt oil pump
i know the turbos will be to low to just drain back to the pan with out some sort of pump. i have no idea what will work best here

:fuel (e85)
i alredy have 2 bosh 044 fuel pumps, sump for the stock tank,-8an feed line, and fuel lab 100 psi base regulator.

:injectors
i have 4 fic 2150cc injectors. should i just buy 4 more (750$) or sell the ones i have and get 8 smaller fic injectors?

:tranny
stock/rebuilt t56 with billit keys 1-6, steel 3-4 fork and brass shift pads 1-6

:clutch
rxt twin/steel flywheel combo

well thats my plan, any and all help would be appreciated.

-Alex d

 

Come on guys, i know u want to help me spen $$

 

What about rear diff? That will definitely be gone at those power levels.

 

I'd say at least the 6262's with 82ar's. Pick up 4 more injectors. Mount the turbos high enough for gravity feed. Find a good tuner to get those injectors idling. Minitub that thing and call The Driveshaft Shop for some upgrades.

 

should be a cool project!!

 

Do you think 6262s will be vary lagy? I have been eye balling the new billit pt5558.
As for the diff i already have a CS 8.8 kit on the way.

 

I prefer to select the smallest turbo that will still meet the max horsepower goal.

A pair of 5858 CEA ball bearing would kick ***. (.63 v-band)

I don't think the 5558's would have any better response. (at least they didn't before the CEA turbine wheels, 5557 vs 5857)

 

Sorry im kinda new to the small end turbos. So u think i should do 2 of the billit 5858. Keeping in mind that i want to make a max power of around 800whp. Is a .63 ex housing going to be to restrictve? I whould hare to spend 2k on turbos just to have to biy bigger ones down the road

 

Well i pulled the trigger on 2 billit pt 5858s in .82 ar v-band in/out. Build therad soon to follow

 

Im on the fence too between 58/58's and 62/62's. 6.0 w/rectangle port heads, auto with converter 1000lbs less than ctsv. Lots of street highway, 1/4 and standing mile. I think 58I compressor will choke my combo.