Oh no...I got what you were saying....There is another that ditched the I/C for meth....Damn meth heads...LOLOriginally Posted by Bio248
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10-06-2008
Oh no...I got what you were saying....There is another that ditched the I/C for meth....Damn meth heads...LOL
10-06-2008
i dont know about modded cars but the difference between a HAI and CAI on a stock car is HUGE. my hai felt slower than the factory box.
10-06-2008
its because it is... heat slows a car down. no matter what car lol
10-06-2008
yea but some will argue flow over temp. thats why i said it. my HAI was pretty much right off the throttle body so it could flow great. but it felt so slugish.
10-06-2008
Cold air is ideal there is no debating that, but there is a point where the increased flow outweighs the benefits of cold air from the more restrictive CAI's and FWI's. No one has done any testing to find this point, but I would assume it's right around the 3.25" and below range.
10-07-2008
There is no way a 4'' pipe is restricting flow. Not even with an aftermarket TB that is larger. By having a longer intake AND it being larger than the TB you make up for any ''restrictions.
Has any one ever put there hand oner the TB when it is idling? or when you rev it up? There is not a lot of air flowing at all.
I'm going to do some reaserch because i know some one is going to ask me to prove it
10-07-2008
i think you need to prove it
10-07-2008
Most of the highly modded guys over on CGP run HAI's because they have seen an increase in flow and a decrease in KR and even posted up scans to show it, so there would have to be some restriction present beforehand if flow went up with the HAI.
10-08-2008
Not at all trying to argue. But...What you said (or the guys at cgp) would be like saying that by putting an intercooler (cooler air) on your car would increase kr and taking it off would decrease kr. There is no way that hotter air reduces kr. No way. And I would have to agree that a HOI would increase flow over any other kind of intake. But there is no way that the amount of flow that is gained would net you any power gains. Maybe if there was 5 times more suction present then there is it may make a small amout of difference but theres not....
1 LB/M is 11.2096 cfm. With my mod list im seeing right at 43 LB/M of flow at 17 psi. So 43 LB/M x 11.2086 =482.0128
A 4'' DIA 4' long pipe can flow 482.0128 cfm's no problem...even if it has a damn figure 8 tied into it.
Now if we had a cone on the tb then your engine could only pull the amount that the air filter would allow...same here...can our filters flow 482 cfm's?
If im wrong im sorry i have searched and convereted measurements for about an hour now and this is all i could come up with
Last edited by TDCRacing; 10-08-2008 at 11:58 PM.
10-07-2008
i agree with tcd. large consistint piping (no smaller to larger sections) with smoth bends. much like tdc's piping. is not going to restrict flow that much, if any.
10-07-2008
you need to set your timing tables accordingly with whatever intake you have. you cant just expect the hotter air to not lower your timing because of the settings in the pcm.
10-24-2008
Ok stupid question. For those who make there own, were are you putting the computer since it is located in the air box ?????
i bought a few little things to do mine and well that was my problem and i dont feel safe in leavin it sit in there with no protection............thanks
10-08-2008
true. idk about this stuff yet tho :/ damn i need a tunner...
10-09-2008
nice
10-09-2008
Don't worry I'm not trying to argue either, just trying to find out accurate information. From what I've been told from other members (haven't tested this for myself), the engine bay temps drop to near ambient once you get moving anyway, so if that's true then I can see how the increased flow from a less restrictive HAI would benefit them. But unfortunately I haven't done any testing myself, so I'm just going by the word of mouth from others.
10-09-2008
Well you can tell them i said there wrong. I have tested it. Me and brian (reptile) have done a lot of testing in regards to the iat's...From the exhaust and the air flowing through the radiator theres no way....
10-09-2008
Here are the threads I'm basing my information on for reference:
ClubGP Message Forum troubleshooting
ClubGP Message Forum troubleshooting
ClubGP Message Forum troubleshooting
10-09-2008
The biggest bolt on maf availale on the market besides like 80mm ls1's ect wich i have converted to inches is 3.07
If our engines can make the power they do through a 3'' tb why would it restrick flow in a 4'' tube?
for anyone who cares the biggest cai for a colbalt ss is only 3''
10-09-2008
this debate will go on forever. there are a million people that say a HAI is the way to go (im in this crowd) and there are another million people that say you should have the coldest intake possible (even if it is more restrictive of a design..).
10-09-2008
I'm Really not in the debate of wich is better to use. rather just saying that a 4'' pipe can flow what our engines take in. I get hat your saying though BIO
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