Quote:
Originally Posted by Black_Mamba
Thinking of getting ported exhaust manifold, a 3500 ported upper intake manifold to match up to a 68mm Billet throttle body, a JET Performance 69108 MAF (from Jegs), and a 3" down pipe.
Will most likely need a high flow cat or no cat. But as of right now, my exhaust set up is all stock, only mod close enough is a k&n cold air.
Let me know what you guys think.
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1. Ported exhaust manifolds are a waste of time. I would save that money and use it towards ported UIM/LIM and the gaskets you will need plus other stuff.
2. A 68mm is worthless unless you have the mods to support it. Having ported UIM/LIM will definitely help but you will not get the full of advantage of it. Really only boosted guys run one of those.
3. A Jet Performance MAF sensor is also another waste of money too. The stock MAF is designed for best possible air flow and having it ported with mess up the MAF tables. The stock manifold is designed to support even boosted applications so you will never max it out under a stock car so it will have no advantages at all for you.
4. 3" DP you will not need either. Running that big of a DP is way over kill and will actually effect your exhaust flow. 2.5" is actually enough. I am working with a boosted 3.4l and have mods to support it and all I need to run is 2.5" Even me being boosted 3" is a little to much.
So what I would do with the money and make this work out correctly to get the most bang for your buck right now is as follows.
I would buy ported UIM/LIM from
wot-tech.comand all the gaskets you will need.
Then buy a LX9 TB and adapter plate to make it work on your UIM. I would replace the stock DP with 2.5" piping and a high flow cat.
The stock DP is very restrictive and you will notce a difference right away. You can have one made at a shop or buy one made at
milzymotorsports.com.
Then lastly I would have a shop build you a cat back system with 2.5" piping all the way back with say a Flowmaster 80 muffler.
What ever you do stay away from Pacesetter stuff because it is not good quality and wont last long.