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4.8 Turbo Build. Need a lil help with cam/turbo.

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Old 10-02-2014, 09:02 PM
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Default 4.8 Turbo Build. Need a lil help with cam/turbo.

I just bought a 2004 Chevy RCSB 4.8 with the sole purpose to turbo. I am home 14 days of the month and will only be driving it once in awhile on the 2 weekends a months that I'm home. I'm looking for an aggressive 4.8 turbo/cam setup. Needs to be streetable but this is far from a daily driver. Only see about 3,000 miles a year. I am not sure on the turbo or cam. I will most likely be using an on3 turbo just to get me going until I can narrow down the turbo to use. I will be running 10 psi for normal cruising and 16 psi for business. Looking for a fun street truck just to raise hell.
Will be burning 93 pump gas NO E85.
Looking to order the kit and parts as soon I lock in a combination. Any first hand help would be nice!

Here is what I'm thinking so far:

-PURCHASED-
-KB hotside w/ s475.
-EPS Custom Cam.
-Brian Tooley Springs/Pushrods.
-FIC 1000cc Injectors.
-Walbro 450.
-Detroit Trutrac.
-Electric Fans.
-4l80E Crossmember.
-Nelson 4l80E Wiring Harness.
-Fuel Lab FPR.
-Russel 8" Fuel Filter.
-Dyno Max Muffler.
-Ebay Fuel Rails.
-DEI Turbo Blanket and Exhaust Wrap.
-40K Trans Cooler.
-Race Ready 4" Electric Cutout.
-Turbosmart Hyper 45 Wastegate.
-Alky Control Meth Kit.
-FTI 3600 Single Disc stall.
-Built 4l80e
-Custom Catch Can.
-Aeroforce Interceptor Dual Gauges
-FTI Flexplate.
-Head Gaskets

-STILL NEED-
-Head Studs.
-50mm BOV.
-Caltracs.
-MSD 2 Step.
-Hot Wire Kit For Fuel Pump.
-Fuel lines/Fittings.
-Air Intake Tube & Filter.
-Spark Pluigs & Wire Protectors.
-Shocks


I'm sure I'm forgetting a few things!
Any help would be greatly appreciated. And yes I have been using the search button... Since I joined in 2006.....

Last edited by 03chevytruck; 06-13-2019 at 08:29 PM. Reason: Updated Parts List
Old 10-02-2014, 09:30 PM
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Clean for a 2004.
Attached Thumbnails 4.8 Turbo Build. Need a lil help with cam/turbo.-image.jpg  
Old 10-02-2014, 10:33 PM
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here's two i have links saved for (was thinking of maybe one for my 5.3 turbo build i will eventually be doing)... not sure how well they will work with your combo you are wanting (or mine im planning).

Speed Inc - Speed Inc TU1.5 Turbo Cam 228/228

Tick Performance Blower Stage 1 V2 Camshaft for LS1 & LS6 Engines - Tick Performance, Inc.
Old 10-04-2014, 06:53 PM
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Man, I thought for sure I would get some feedback with a couple hundred hits... Well I'm going to order turbo kit Monday. Going to call Geoff at EPS to spec cam & circle D to spec TC.i'll probably go with dual 255s pumps. 80 lb injectors just not sure what brand. Ordered electric fans. So hopefully I will have everything lined out and ordered by next week. Also going to swap to better turbo after I get a few miles on the setup and get all the bugs lined out.

As always any help would be appreciated.
Old 10-04-2014, 08:05 PM
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Stock48 triple 12 cam and the on3 78/75...should get the 4.8 to 700 club.
Old 10-04-2014, 08:08 PM
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Honestly, you should just copy my set up. This thing is a beast at 12psi. I love my borg unit and would recommend it for you. Also, the cam you have up there is going to make for a real dog down low which isn't what you will want with a 4.8L. Run a small cam to get that toque down low and then let the turbo do its job up top. It will make for a much better driver.
Old 10-05-2014, 08:31 AM
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Oakley6575, thanks for the cam/ turbo advice. I will get the smaller cam and on3 76mm then upgrade the turbo to the BW after I get some run time. I'm really amped to be pulling the trigger on everything. Just want to make sure I'm doing it right. Not new to the 4.8/5.3 but this will be my first boosted ride!! Do you have any dyno numbers at different psi levels? Just wondering about what I would be putting down with your setup. I'm sure 10 psi will put a smile on my face or normal driving!!
Old 10-05-2014, 11:18 AM
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Speed inc TU0 cam will be great for your build. The 76mm on3 will be great to start, but I am also a big fan of BW long term.
Old 10-06-2014, 07:19 PM
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Well, got a EPS custom cam spec'd today. Calling to order turbo kit tomorrow morning. Going with a 70mm for quicker spool and solid power curve. Should be fun to drive!!
Old 10-07-2014, 03:22 PM
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Turbo kit ordered!!


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