cam or intake manifold
Drifting
Joined: Sep 2009
Posts: 1,719
Likes: 4
From: cinnaminson n.j.
St. Jude Donor '14
Intake 1st. The stock ls2 intake is not the best. I had an 06 A6 with similar mods, I did the ported fast 92 1st and the car ran great. You would want to upgrade the manifold when doing a cam anyway. Get it out of the way now.
Unless you decide to go FI.
Unless you decide to go FI.
Thread Starter
Instructor
Joined: Oct 2013
Posts: 114
Likes: 1
From: Western Massachusetts
It's a 07 a6. I got longtube headers,high flow cats, exhaust, cai. Would the fast require a tune to function? I plan on getting a tune just don't want get a tune and a month later put in cams and springs and need a retune. I'm looking at then new msd atomic airforce manifold
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
I did a dyno overlay of all my mods from headers to heads. See below.
It's wise to remove airflow restrictions in the proper order, which is headers, then cam, then intake, then heads. Going out of order doesn't make sense, for example, Trickflow heads are great but on a stock cam they aren't the bottle neck so you won't notice the difference.
See how they stack up on the dyno, and note the last three only matter from 4500 rpm up. There is other good discussion in this thread as well so read on if you care to.
https://www.corvetteforum.com/forums...ast-heads.html
It's wise to remove airflow restrictions in the proper order, which is headers, then cam, then intake, then heads. Going out of order doesn't make sense, for example, Trickflow heads are great but on a stock cam they aren't the bottle neck so you won't notice the difference.
See how they stack up on the dyno, and note the last three only matter from 4500 rpm up. There is other good discussion in this thread as well so read on if you care to.
https://www.corvetteforum.com/forums...ast-heads.html
Instructor
Joined: Oct 2007
Posts: 121
Likes: 0
From: Atoka OK
It doesn't matter what order you do your mods. Keep in mind that a cam will have a lot bigger gains on a stock motor than an intake swap would on a stock motor. I can't really see the MSD Atomic giving you much until you have other mods to make it shine. Granted there might be a slight increase but you will need a dyno sheet to tell it. You will feel the powerband extended the first time you hammer down with a cam swap.
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Le Mans Master
Joined: Jan 2008
Posts: 7,155
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From: If you wanna live life on your own terms, you gotta be willing to crash and burn Florida
Damn that MSD intake is a nice piece of work. A little too expensive for me though. I gotta stick with the FAST 92/102. Go with the intake before the cam, but if you can afford both, get it done, tune it and be done with it.
Racer
Joined: Oct 2010
Posts: 407
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From: Michigan
Advanced
Joined: Jan 2015
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From: Alvin Texas
Melting Slicks
Joined: Oct 2010
Posts: 2,220
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From: Sugarhill Ga
unless you have other mods like headers & CAI, I would do the Intake 1st. The gains will be marginal, but the swap will take an hour or so. If and when you do a cam swap, the added volume of the intake will yield higher gains. Think of an engine as an air pump, the faster you get air in & out the higher output it will have.
Safety Car
Joined: Feb 2007
Posts: 4,684
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From: Opelika Alabama
I don't agree! FACT 90MM WILL suport 1200HP. you have to butcher your fire wall to install the fast, 20hp? you WILL have to tune after you install, your right I've seen 20hp gains too BUT was it the fast or the tune? IMHO if you want to get the BEST HP for the buck SUPERCHARGE IT! 7-8 grand 200 HP. if you just want to get over 400 hp to the ground, cam it and tune, my 2006 MN6 LS2 Z06 exhaust system, roller rocker arms, K&N intake, just tuned 381 HP 378 TQ
Safety Car
Joined: Feb 2007
Posts: 4,684
Likes: 107
From: Opelika Alabama
currently thinking cam spring install with torque converter and maybe gears with tune. Any thoughts ? I'll do intake later in year or next?
