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408 turbo build.

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Old 05-30-2015, 10:17 PM
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Default 408 turbo build.

hey guys whats up? I recently bought a 99 camaro and was going to do a 5.3 junkyard build...well long story short i ended up with a forged rotating assembly and a 4inch stroke in a 6.0 iron block... lol. I bought a 76mm PT7675 turbo but now came to the conclusion that it is too small. Looking to make a fun street car. Shooting for 900+ to the tire. I have AFR 210 heads already before i started the build, Also have a fast 102/102 NW throttle body but as i do a little bit of research i am seeing people aren't using them too much? My question is why and what intake manifold should i use as well. This is my first actual car i am building other then LS simple cam swaps etc. It is an Auto, "built" 4l60e...With a Pro TQ 9.5 inch converter, 3600 stall.

Turbo selection is a S480 with Billet Cover since I'm going with the larger motor now.

I am keeping my A/c, as well.

What size injectors will i need? 80# or 120#s. Any help out all would be great,

Can i stay with LS7 lifters and trays? Or should i change them?

What cam would be good for a street setup also...

Would LS9 head gaskets for sufficient for my setup? Im using arp head studs.
Old 05-31-2015, 04:33 PM
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That throttle body can be hard to tune for idle/off idle. But if you have a good tuner, should be ok.
General consensus is that you don't need bigger than stock.

Hope you have a VERY VERY good 4L60.
Old 05-31-2015, 04:43 PM
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People are using the stock ls1 manifold And ls1 throttle body? I would prefer the better drive ability if the 102 will be a concern.

The trans is permanent, came with the car and papers from the shop that built the trans and installed. Personally want a 4l80e but I'll put the 60 to the test.
Old 05-31-2015, 04:58 PM
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Originally Posted by Hypforlife32
People are using the stock ls1 manifold And ls1 throttle body?
And have made over 1000whp on gas and ran 7's doing it.
Old 05-31-2015, 07:38 PM
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I would sell the FAST 102/102 and run an LS6 Intake for those goals.

Also, like others have said, ditch the 4L60e, it won't like 900+ HP very much.
Old 06-01-2015, 10:52 AM
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I'm def gonna sell the 102 setup. What throttle body would you guys recommend on a ls1 or ls6 manifold? I have fast rails as well. Can I use stock ls1/6 fuel rails with bigger injectors?



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