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Juicy's LS3 C5Z build, redeux


JuicedH22
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Just figured I would document the changes that have been going on this winter. For those that dont know, I cracked a piston ring land in November racing. Instead of just replacing the cracked piston, I got caught up in the "might as wells" and ended up blowing my drivetrain funds to redo the powertrain... So now I will really be worried about how long this stock drivetrain will last before I am forced to upgrade/replace....

 

here is the last build:

http://www.columbusracing.com/forums/showthread.php?t=101372

 

Here are the upgrades:

 

Modifying the TFS235 heads; opening the exhaust port diameter and doing a nitrous port valve job and replacing the intake valves with LS3 hollow-stem valves.

 

416ci, engine building by All In Racing Engines

-Callies Compstar 4" crankshaft

-K1 Technologies rods

-Wiseco -3.2cc flat-top X-series pistons.

-custom spec cam by Brian Tooley: 247/255 624/624 113+3

-Cloyes hex-a-just single roller, reusing my C5R chain

-LS9 headgaskets

-McLeod RXT clutch (upgrading from my RST)

-Fidanza Aluminum flywheel

-ARP main studs

-ARP head studs

 

-LG Motorsports 1 7/8" SuperPro headers/x-pipe

-Nick Williams 102TB

-FAST fuel rails (special production black finish) from Hinson

-SD 60lb injectors, LS3 height

-Torrent fuel line kit (by Hinson)

-Holley valve covers (black finish)

-LS3 coils

-Hinson urethane motor mounts and transmission mount

-Lingenfelter 2-step Launch Controller (LNC-003)

-External oil cooler setup (B&M super cooler, -10 lines, Improved Racing adapter block)

 

-Nitrous Outlet n2o setup... TBD (only thing purchased for that so far is hte standalone fuel kit... minus the fuel cell which I will be fabricating myself - lilmiller motivated me on that one.)

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Not a whole lot of pictures this time around, other than some random parts. I plan on taking more of the engine work and assembly... and will for the fabrication stuff (oil cooler fab, and standalone tank)

 

http://i30.photobucket.com/albums/c318/Juicedh22/4F87D178-DB7A-44DD-8048-A65A08D54028-3039-0000042B5FE31B95.jpg

 

http://i30.photobucket.com/albums/c318/Juicedh22/F6C8F436-1F10-4979-BBA8-98AECC9019F7-3154-000003801F541D83_zpsfbe176e3.jpg

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shiny new parts....

 

http://i30.photobucket.com/albums/c318/Juicedh22/452BA845-FDF8-438F-AF90-466A68A8E8F3-6927-000007B403C88EAE_zps1d092509.jpg

 

http://i30.photobucket.com/albums/c318/Juicedh22/0EF8F9C8-9F4D-4841-BB45-5C3E07EE37AE-6927-000007B40959C65D_zps911c03c8.jpg

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Dat head :)

 

Same head as last year... just sent them back to have the exhaust port opened up and a nitrous-port and valve job added, as well as LS3 intake valves to drop the valvetrain mass... and for some reason that I still havent had answered, they milled another 0.05" off the heads....

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  • 6 months later...

I will be back with more details later, but wanted to make a quick update before heading down to Gatlinburg for hte weekend. :D

 

Got the car on the dyno for a couple base pulls (no tuning). Here is a plot compared to my setup last year. Definitely room to open it up. First and foremost getting rid of the 2.5" stock axle-back exhaust.... a friend of mine with a 427 c5z on the same dyno picked up 20whp by taking off the stock ti exhaust...

 

http://i30.photobucket.com/albums/c318/Juicedh22/Juicy416_zpsaf5882ca.jpg

 

Either way, it rips good on motor on the street... now for the giggle gas...

 

http://i30.photobucket.com/albums/c318/Juicedh22/null_zps8c33c69b.jpg

 

and new seats...

http://i30.photobucket.com/albums/c318/Juicedh22/null_zps4a9226a8.jpg

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