Throttle Body
Race Director
Joined: Aug 2005
Posts: 13,592
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From: Hudson WI
NCM Sinkhole Donor
Safety Car
Joined: May 2011
Posts: 3,807
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From: Oshawa, Ontario
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
I agree Larger T-bodies are rarely needed until you approach massive CI and HP
If anything get yours ported and it will make the throttle response better and add maybe 5-8 RWHP
If anything get yours ported and it will make the throttle response better and add maybe 5-8 RWHP
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Thread Starter
Heel & Toe
Joined: Mar 2014
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Melting Slicks
Joined: Nov 2010
Posts: 2,625
Likes: 195
From: On the east coast we drive until we die
Where are you at with your car? Are you stock? If so I would start with a set of headers and a tune. Do the free shroud-prop mod (search for it on here) so you don't have to spend money on a CAI, unless you want to, and then work your way up from there. I think they'll give you a better return on your investment and a noticeable increase in power. Personally I wouldn't be looking at a FAST or a ported/larger throttle body until I had these first.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
If you look at dyno runs with people running larger FAST intakes----You will see that the HP and TQ gains are all over 6000 RPM's
It is my opinion that unless----You have larger that stock CI--or typically run your engine above 6400 RPM's there is no need for a larger manifold----A stock LS6 intake is plenty capable of handling 450 RWHP without sacrificing any bottom end as the larger manifolds do---- So depending on how you plan to drive your car would dictate whether or not you would benefit from one---
It is my opinion that unless----You have larger that stock CI--or typically run your engine above 6400 RPM's there is no need for a larger manifold----A stock LS6 intake is plenty capable of handling 450 RWHP without sacrificing any bottom end as the larger manifolds do---- So depending on how you plan to drive your car would dictate whether or not you would benefit from one---