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2003 4.8l v8 G35 project.

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Old 03-07-2017, 01:47 AM
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Default 2003 4.8l v8 G35 project.

Hello fellow members. My name Stephen. And I live in Toronto Canada. I am in the process of buildING a a 04 G35 powered by a 4.8l v8 from a 2010 Sierra truck. This has been a great learning curb so far, but I have lots to learn about the LS platform.

Parts list.

Cx racing mounts.
CX racing oil pan.
CX racing 92m throttle body (drive by cable)

Feeding the engine will be 2 walbro 450 fuel pumps
Custom fuel sending unit to hold both pumps in tank. And -8feed line to the Aero motive fuel regulator.


Using the G35 power steering pump (custom brackets)

I will be using a 4L80e Transmission with a Transbrake.

I am planning on running a 88mm turbo from On3 performance. Just waiting on them to ship it out. Then I could make my turbo manifold.

I am still on the fence about which CAMSHAFT to run. I was looking at Comp Cam https://m.summitracing.com/parts/cca-54-481-11

I will be running the stock pcm. The harness is a painless harness with its own fuse box.

Things I still need to get.
Intake manifold.
Camshaft and dual springs
Built 4l80e with stall and transbrake
Drive shafts
80pounds injectors
Attached Thumbnails 2003 4.8l v8 G35 project.-20170224_003334.jpg   2003 4.8l v8 G35 project.-20170307_010129.jpg   2003 4.8l v8 G35 project.-20170203_211520.jpg   2003 4.8l v8 G35 project.-20170107_182054.jpg   2003 4.8l v8 G35 project.-20170107_164305.jpg  

2003 4.8l v8 G35 project.-20170111_000106.jpg   2003 4.8l v8 G35 project.-20170111_000352.jpg   2003 4.8l v8 G35 project.-20170114_201809.jpg   2003 4.8l v8 G35 project.-20170307_010059.jpg   2003 4.8l v8 G35 project.-20170307_010050.jpg  


Last edited by Zulu moore; 07-17-2017 at 03:14 PM.
Old 07-17-2017, 03:29 PM
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So a quick update. The car is almost done.


Custom.
Tranny mount
Fuel sending unit.
Fuel lines feed -10 and return -8
Bottom engine mount.
4inch down pipe


Modification.

Rebar.
Intercooler bracket.

Fan Bracket.

Will load the pictures soon.
Old 07-17-2017, 05:50 PM
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I won't put a Comp Cam in anything I own. Cam Motion is the way to go IMHO
Old 07-19-2017, 12:35 AM
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Why is that? For now I am running the stock cams.
Old 07-19-2017, 02:17 AM
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Originally Posted by Zulu moore
Why is that? For now I am running the stock cams.
Comp cast cores SUCK! My 350 in my Express van munched a small, mild Comp cast core roller for lunch.
Old 07-19-2017, 08:44 AM
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Originally Posted by Fast355
Comp cast cores SUCK! My 350 in my Express van munched a small, mild Comp cast core roller for lunch.
I see. Good to know.
Old 07-19-2017, 08:45 AM
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Old 07-19-2017, 08:48 AM
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Had to cut the rebar out and weld it back. About an inch and a half out.
Old 07-23-2017, 06:20 PM
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Try a btr boost cam, btr dual titanium springs.
Old 07-25-2017, 09:16 AM
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I already have the honeycomb springs.. would I have to machine the head to fit those BTR springs?
Old 07-25-2017, 09:26 AM
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Did the CX oil pan fit without notching?
Old 07-25-2017, 09:39 AM
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There are lots of 4.8/5.3L builds in the forced induction sub-forum with lots of cam recommendations. I am going to be running a .600/.600 226/230 113+3 cam in my turbo 4.8L and I plan on using dual springs with it.

The build looks like it is going to be a pretty interesting car.
Old 08-01-2017, 10:53 PM
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Originally Posted by BullyDawg
Did the CX oil pan fit without notching?
I had to notch the left side frame. Because the 4l80e tranny is huge. And make my own mounts.
Old 08-01-2017, 10:56 PM
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Originally Posted by mOtOrHeAd MiKe
There are lots of 4.8/5.3L builds in the forced induction sub-forum with lots of cam recommendations. I am going to be running a .600/.600 226/230 113+3 cam in my turbo 4.8L and I plan on using dual springs with it.

The build looks like it is going to be a pretty interesting car.

Thanks I should be. I will get the cam for next year. I want to see what the stock torquay cam can do first.
Old 08-02-2017, 06:09 PM
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Originally Posted by Gerardo Ortiz Lalo
Try a btr boost cam, btr dual titanium springs.
Pretty much all of these cams from performance shops, besides cam motion are off the shelf comp cam lobes. They just select a lobe for the intake, a lobe for the exhaust, index them according to a setup, and then sell it to you as their "custom cam". Cam Motion is like comp camps in that they design the LOBE PROFILES and the results in recent years have been quite significantly better than comp cams offerings. Cam Motion also offers some nice material upgrade options for better wear resistance.

What sets them apart are their lobe profiles. Don't confuse that with the specs like lift, duration, LSA, and ICL....the profile for a given set of specs is what decides if the valve train will live and how much noise it will make.

Its a balancing act of flow, valvetrain stability and durability.
Old 08-03-2017, 12:54 AM
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Thanks for the info
Old 08-03-2017, 01:37 AM
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