3rd gen Engine/Drivetrain Engine/Drivetrain Modification Discussions for 1999-2003 Models Only (BJ chassis)

Injen CAI vs Ebay CAI..you decide

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Old April-8th-2005, 07:39 PM
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that intake posted is $51shipped but yes it is a good intake.
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Old April-8th-2005, 07:54 PM
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Thumbs up

Thanks Roddimus
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Old April-15th-2005, 08:10 PM
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Here's my question:

I always see people saying that this CAI, or that CAI or SRI is better until the cows come home. And there's always some reason or other that makes sense to them, which is fine by me. What I never seem to find ( and it's not just this site) is someone that has actually hooked the car up to a dyno with brand A, B, and C, and here are the results. Doesn't anyone ever want to know what the actual numerical differences are between them? I know I do, and I've been looking for months now.
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Old April-15th-2005, 11:17 PM
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If you'd like to pay for my dyno time I'll be more than happy to do this for you...it would be about $80usd. I accept paypal. I have both intakes here so I can get some dyno time just as soon as you send me the money.
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Old April-16th-2005, 07:29 AM
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Originally Posted by Roddimus Prime
If you'd like to pay for my dyno time I'll be more than happy to do this for you...it would be about $80usd. I accept paypal. I have both intakes here so I can get some dyno time just as soon as you send me the money.

And now he knows why there are no real numbers! HAHA
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Old April-16th-2005, 10:00 PM
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Yep, now I know, and I get the point.

I do however find it odd though, that all these people are arguing about products that they really have no way of proving are any better than the other, one way or the other. It seems kind of pointless to me.

If anyone has the results to prove imperically that one is better than then other, I'll say thank you, then I'll shut up.
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Old April-16th-2005, 10:12 PM
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theory, its all about theory. and some companies test while some just spit out a product.
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Old April-17th-2005, 11:20 AM
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Originally Posted by Wingnut12
Yep, now I know, and I get the point.

I do however find it odd though, that all these people are arguing about products that they really have no way of proving are any better than the other, one way or the other. It seems kind of pointless to me.

If anyone has the results to prove imperically that one is better than then other, I'll say thank you, then I'll shut up.

See the argument is this. People like Ingen and K&N charge 270 (I)- 300 (K&N) for there CAIs. They claim you get 10-15 WHP. They did do dynos. But I can go out get one off of ebay for 40-60 buy a K&N Apexi or what ever and still not be over 100 and if I am its still not half the price of the others.

Now, I raced an MP# his car has OBX header, and exh. Plus 10 ext. HPs.
Mine. wagner shorty header, 9 lbs flywheel ebay cai racing beat axleback.

Through 3rd we were evan. After that 4th and 5th I left him. No not left him like smoking him but I did pull away.

So if he did the Injen and already had 10 ext hps then how did I win. The CAIs are all the same, its just pipes. The filters are what makes the differance.
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Old April-17th-2005, 06:05 PM
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so pop on an apexi filter cause i dont trust K&N or whatever the ebay intake came with. BTW ebay is better its cheaper for the same pipes and if you want to you can have roddimus powdercoat it.
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Old April-17th-2005, 07:24 PM
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Thanks alot for all the information. I think I'm going to have my father in-law build me an exhaust and fully explain the mechanics since A) he's not trying to sell me anything, and B) will give me the real goods.

If he comes back and says that the CAI, or the exhaust won't really do anything, then I'll have to listen since he's been in the business for long enough that he knows his stuff.

Either way, I'll let you know what he says next month when I go see him.

EDIT: If only he had a dyno...
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Old April-17th-2005, 10:42 PM
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Originally Posted by Wingnut12
Thanks alot for all the information. I think I'm going to have my father in-law build me an exhaust and fully explain the mechanics since A) he's not trying to sell me anything, and B) will give me the real goods.

If he comes back and says that the CAI, or the exhaust won't really do anything, then I'll have to listen since he's been in the business for long enough that he knows his stuff.

Either way, I'll let you know what he says next month when I go see him.

EDIT: If only he had a dyno...

You know, this is the part that bugs the hell out of me. People ask for help and when you give it (and even spell it out for them) they still have to question you. I could understand if there were only one out of twenty people saying there is no differance but when you have several people that like myself have been in hotroding or tunning for you younger guys longer than most of you have been breathing, you think they would listen. Plus you have guy like Roddimus that have been tweeking these cars for a very long time. If he tells you that he uses one and has the other but took it off then why would you not believe him. Oh well maybe I'm tired and cranky, old guys get that way.
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Old April-18th-2005, 12:34 AM
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i wouldn't EVER want someone to take my advice as the ONLY facts. If he wants to do his own research and investigation, let him. I was just trying to save him some time.

My whole point with this thread was to show that if you took the name plate off the intakes you could not tell them apart. If you were to put them on the dyno I bet they'd be within 1whp of each other (using the same filterS)....have I tested this myself? No, not on a protege.

BUT.....when Iwas real big into SHO's we had a HUGE dyno day in Virginia and all we did was test every available intake and exhaust combination on this guys 1 car...it was the most controlled environment for a dyno I'd ever been in....one car..4 intakes and 3 exhausts...The exhausts showed some varying power levels but the intakes were all within 2whp of each when equipped with a K&N filter. This is on an engine making over double our WHP in stock trim.

There is an art to designing intake runners and combustion chambers....however this science is pretty NON-important once you get to the throttlebody since all of the harmonics and flow is negated through the tiny TB and MAF...

for what it's worth. The manufacturers will tell you the ONLY reason they use that rubber flex hose is that it's designed to keep noise levels down....thats it. They don't care if it impedes flow or performance....just keep the noise down.
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Old April-18th-2005, 08:06 AM
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Well I wont take it to far off topic, but come on people. The proof is here in the thread. Common sense should tell you, if you have 2 pipes that are the same length same size same shape Then they are the same. It's all in the filter!
OK my rant is over.

Last edited by hughes412; April-18th-2005 at 08:08 AM.
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Old April-18th-2005, 08:17 AM
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I think Hughes is missing my point. Although it makes sense that a pipe is just a pipe, and that it's probably just the filter making the difference, I've seen some really shoddy pipes, and some good ones.

Like I said: Thanks for the information. I'm learning a lot about a wide variety of topics, but want to some research on my own. You'd think he'd appreciate the open mindedness. I'll let you know what happens.
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Old April-18th-2005, 11:42 AM
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Look at this another way:

Let's for argument's sake say that my generic-type SRI makes 4 whp (and I think that's probably stretching a bit, even) and cost me 45$ shipped. That's $11.25 per hp.
The AEM SRI is about 152$ and I'll be generous and say it makes 6 whp, which it probably doesn't. That's $25.33 per hp. There's no way anyone could feel the difference in your front-seat dyno.
Which would you rather spend your money on?
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