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FI head/cam question

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Old 05-01-2012, 12:14 PM   #1
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Join Date: Oct 2010
Location: Jacksonville, NC
Posts: 31
Default FI head/cam question

The basics on the car: 2006 GTO with TVS 2300 on 6lbs, LPP intake, 1 3/4 LT's to catless mid and borla rear section. Car made 492/496 after being tuned on the street. Car has just rolled 50k miles.

What I propose doing: ETMC stage 2 blower cam, TSP .650 springs (already have these), harder pushrods, MAYBE a smaller front pulley to make up for the little bit of boost loss, and a dyno tune.


Any immediate problems seen here?

Do I need to worry about the little loss in boost? If so- Car is on the 3.2 pulley now, would the 3.0 make up for the boost loss? Is belt slip really going to be a big issue? I've heard people have gone to the 2.8 with no problems...

What am I overlooking?

I make no pretence at being an expert or I wouldn't ask. I'm just throwing ideas around at the moment.
06 GTO 6M- TVS 2300, Pedders Track 1, Monster level 3, Hendrix 8.8 kit, etc
Old- 492whp/497wtq, 11.13 @ 123/1.60 60ft
New- 623whp/601wtq, 10.81 @ 132/1.75 60ft (old tires)

Last edited by madskater5; 05-01-2012 at 12:31 PM.
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basics, cam, gto, headcamfi, ls1tech

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