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Cam for LS2 with maggie?

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Old Jan 28, 2007 | 05:53 PM
  #11  
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Sorry Bill, but I won't be able to make it next month. I still have a huge parts pile that I am just beginning to install and still have parts on backorder. I should be done by the end of Feb.

That is a lot of compression! I think I would stick with the GT2-3, I kinda went out on a limb trying the GT-7 because I already had the 1.8 rockers that I wanted to use. I was a little worried about loosing the needle bearings in the stock rockers using stiffer valve springs with a more aggressive cam. Vinci makes some cams that are a comprimise between the GT2-3 and the GT2-5 if you wanted something in the middle. Vinci's cams are on a 115 lsa and have similar duration.
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Old Jan 28, 2007 | 05:53 PM
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Originally Posted by NORCAL TBSS
trevor what size pipes are you running?
im running 1 3/4 long tube with 3 inch true duals all the way to the tip. Muffler is 3 inch dual in/out with internal x pipe.
3" from the collectors to the X-pipe and 2 1/2" back. I have a little smaller engine
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Old Jan 28, 2007 | 05:56 PM
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NORCAL TBSS, do you know your timing advance at WOT? Do you have a meth kit?
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Old Jan 28, 2007 | 05:56 PM
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From: FRISCO CALI
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yah with the maggie i wanted to make sure i had enough flow for it i hope i got that covered.

i called blownchevy left a message ill hear from him tomm i hope then we can see whats up. Im thinkin hey if the front end has to come off for the maggie install mabe we can slip a cam in at the same time since the manifold will be off.

so gt7 might be overkill?
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Old Jan 28, 2007 | 05:58 PM
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The GT-7 has less lift than the GT2-3, so unless you plan to use 1.8 rockers, the GT2-3 should make more power than the GT-7.
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Old Jan 28, 2007 | 05:58 PM
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Originally Posted by Stoichiometric
NORCAL TBSS, do you know your timing advance at WOT? Do you have a meth kit?

ill be runnina 2.9 pulley and then 2.8 on race gas. blownchevy is doing the install i towed my truck to him yesterday with my other truck (made it up the grapevine with no probs tranny temp went up to about 190)

after doing a search i think the gt2-3 might be the way to go (i dont know if ls2 uses 1.6 or 1.7 rockers) also i have a bigger spearco intercooler being made that dropped temps by more than 50 degrees.



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Old Jan 28, 2007 | 06:04 PM
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The ls2 uses 1.7 rockers. The Spearco intercooler will fit in the stock maggie manifold? Are you using a 122H or a 112? Wow, your truck is going to haul!
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Old Jan 28, 2007 | 06:09 PM
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From: FRISCO CALI
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do you have a tbss also??

a mamber on another forum made a custom sperco intercooler for his customer so he keps the specs and when i called me he told me about it. The intercooler takes up the entire front and he said just squeaks in there to fit. I wont be running a front grill when racing so should keep the temp down a little more. Talking to brian im not going to run a meth kit ill prob do a jug set up but we shall see. I street race a lot so i just want a combo to run low 12 and ill be happy. I still have to get a tranny because i allready have the yank sc3000 waiting to go in. also 275 40 17 mt drag rads are ready for it also


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Old Jan 28, 2007 | 06:26 PM
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The GT2-3 cam is a proven performer. I did a lot of research before I bought my cam. My conclusion was that there are cams that will provide more top end power at the cost of driveability. The 6.0 could definately use a larger cam, just not sure what the power difference would be.

Just be sure to keep the lsa up to prevent boost bleed because whatever you lose with a cam you probably arent going to get back b/c the maggie is maxxed out.
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Old Jan 28, 2007 | 06:28 PM
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This is mine:


I hope I don't run into you in a street race! Especially with those DR's on your truck, those look awesome. I think you can meet your low 12 sec goal. We will all have to hook up at the next track day, I won't quite be ready for this one coming up.

I have a 112 maggie kit for my truck with a GT-7 cam, Crane 1.8 rockers, 1 7/8" custom Stainless works headers, true dual 3" Magnaflow exhaust, HD-2 shift kit in a 4l80e. And right now my truck is bone stock! I am going to try and get all this put together in the next few weeks.

Last edited by Stoichiometric; Jan 28, 2007 at 06:39 PM.
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