LT1/LT4 Tech 1993-1997

how to match air flow from start to end

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Old Mar 20, 2008 | 12:30 AM
  #1  
soupah's Avatar
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Default how to match air flow from start to end

Hey,

I was previously thinking about getting headers, and thanks to pete and slvrz28, I came to the conclusion that shorty 1 3/4", ceramic coated, tuned headers are the best bet. Since the camaro already has plenty of torque, high end hp is more of a concern for me.

I'm looking into TB's now, but I am concerned for some reason that if I get a 56 mm for example, they won't be as compatible with 1 3/4" headers than a 52 mm would be.

What distincts this constitution? I want a free flowing system, but I don't want to disrupt it to a level in which the parts will not compliment each other.

Thanks
 
Old Mar 20, 2008 | 01:27 AM
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Default RE: how to match air flow from start to end

is your car stock right now?
 
Old Mar 20, 2008 | 01:36 AM
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Default RE: how to match air flow from start to end

CAI, 40 srs mufflers.
 
Old Mar 20, 2008 | 01:55 AM
  #4  
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Default RE: how to match air flow from start to end

the TB is good to 350 rwhp or so. u wont get there with just boltons. do a tb if and when you do a cam swap or right before.

but to answer ur question, its not about compatability. as long as you open up the area you are fine. u have to remember that the valves separate the intake and exhaust systems, and therefore hault the flow of gases, so its not like a change in cross section from one system to the other is going to make much difference. get enough to cover your needs, but dont worry bout compatability
 
Old Mar 20, 2008 | 02:41 AM
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Default RE: how to match air flow from start to end

Ok, thanks for the great info

So what is good enough for me? Is 52 mm good, or 54, or something else? I don't want to overspend on something I don't need.
 
Old Mar 20, 2008 | 06:24 AM
  #6  
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Default RE: how to match air flow from start to end

i didnt know there was a difference in price for the size. at least its not in ls1. 56 sounds right from what ive gathered in the past but u need someone more familiar with lt1 cars. just make sure you do everything else first otherwise you are wasting money. if you dont see yourself spending the 700 dollars for a cam swap then take the TB money and buy some gears. a common build is full boltons (intake, headers, exhaust) and gears, and this is a car u can have fun with.
 
Old Mar 20, 2008 | 11:36 AM
  #7  
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Default RE: how to match air flow from start to end

i ask if your stock or not because like specter said a TB wont do you much good if your mostly stock.
 
Old Mar 20, 2008 | 12:48 PM
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Default RE: how to match air flow from start to end

Pete and I tried to convince you to get a tuned Long Tube header, just trying to clear that up, there really isn't a thing as a "tuned" shorty because it's hard to tune a tube that short for an RPM that the motor runs at on a regular basis. A shorty header would be best "tuned" for a 10,000 RPM vehicle. On the other hand, you can "tune" a long tube to an RPM range that your motor opperates in to get the maximum torque around that point.

That being said, your stock throttle body flows more than enough until you're doing some serious internal mods, and then you'll want to port the intake manifold and go for a 58mm TB. There is a little difference in price, but as I already said, it's not going to matter too much because the one you have on it right now outflows what your motor needs. If you're seriously considering doing heavy internal mods you can think about getting a TB if you have the money, but I would hold off until you get your headers on to decide whether you really want to go through on the TB.
 
Old Mar 20, 2008 | 02:17 PM
  #9  
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Default RE: how to match air flow from start to end

thats probably why you always see shorties on those toyota vids reving something up to like 15k
 
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