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"Ram air style CAI vs. Stock intake...butt-o-meter...

3.7K views 27 replies 10 participants last post by  MIB  
#1 ·
Well.... i have been running a "ram air" style intake for a few months now. it consisted of 3.5 inch tubing running from the fog light bezzle(replacing the fog light) going directly into the stock airbox. the car always felt real strong. well just last night i took the tubing out, put the stock pipe (under the bumper) back in, and replaced the fog lights. I've been driving all day. the car doesnt seem to pull slower or harder. It seems to be the exact same. Even as i approach 100 mph it seems to pull just as hard with the stock intake. For some reason i thought the Ram air style intake would be better.....could the stock system be good enough. am i missing something?:confused2

josh.
 
#3 ·
Ram air effect is almost usless on a car that goes under 100. Even past that it is almost no improvment. Ram air is good for engine cooling, and not much else. Americans have bought into the idea for a long time, but what you want is cool dense air first and foremost. The cooler and denser the air, the better. Ramming it into the engine makes almost no difference, b/c airflow through the intake tract is turbulent, so all that extra energy just gets slowed down anyway. A good CAI is the best bet in terms of intakes.
 
#4 ·
i've recently installed my AA RAM intake kit and i have to be honest, I definitly feel a difference especially in 2nd gear going over 120 km/h. There is a definite pull once hitting higher end speeds.

It may be the fact that the climate here has changed dramiticaly and it has coincided with the installation. Last week, our evening high temp was around 37 degrees celsius. These days it has been around 25 degrees celsius. :hihi:
 
#5 ·
I have to agree with TRIFLOW............

I have the Active Auto Werkes CAI system on my 2003 beast. I have given it some time to see if there is a "difference" between the A.A. CAI setup and the stock intakes without the A.A. CAI. I didn't want to post my discovery prematurely but at this point, I'll share my opinion. There is NO difference between the stock setup and having added the AA CAI system. Sorry.......:crying2:
For approx. $1000.00 the A.A. CAI setup is simply addtional cosmetic "eye candy" for the car. Speaking of eye candy, I just had Dinan's front and rear shock tower braces installed, and again, Im not sure it will make much of a difference between having the braces and not having them but the front brace makes the engine bay look super sharp! So, this was an addtional $1200.00 for more eye candy. Oh well!;)
Robert:cheers:
 
#6 ·
No difference?

Robert,

Sorry to hear that you don't feel any improvement. You did purchase the Super AA CAI didn't you?hmmm Sorry, just kidding. I did feel a difference from the first time I drove the car. With the Powerchip added in addition to this, I have on occasion had the rear wheels brek lose in 3rd. This never happened prior to those two additions.

I have had the AA CAI for about 9 months and an still very pleased with the purchase.

Mark
 
#7 ·
The E39 is a pretty stiff platform, so you might need to run R compound tires on a track before you will see the gains of the braces. Turn in might be a bit sharper, but you said it "eye candy." I drove an E36 M3 with amoung other things a Dinan CAI. It was worth the money just to hear the intake howl when you were on it. Other than that, I see it as a way go gain a little HP, for a lot of money.
:cheers:
 
#8 · (Edited)
Mark..........

Is it possible that you might have had the same "improvement" with engine response with the POWERCHIP only, and not had the A.A. CAI setup? The UPERCHIp might be the main factor of your car's improvement, no??????? I might have a better opinion regarding the A.A. CAI system, if I also had done the POWERCHIP upgrade. What do you think?
Robert:cheers:
 
#9 ·
Your guys need the...

Tornado Air system!

You guys are missing this feature -- strategically placed in your CAI, you are guaranteed to run faster and get better gas mileage!

Did AA forget to include yours?

http://www.tornadoair.com/tech.php

LOL
 
#11 ·
would the puting in the stock intake make the exhaust sound different. mine sure as h@ll does. it sounds deepre and louder. would this have anything to do with the way the air is being pulled in? its kinda buggin me out. i can feel the exaust..its that much louder. it only began to sound like this since the day i put the stock intake back on. any suggestions?

josh
 
#12 ·
i had a bunch of high speed runs tonight. the last time i did some serious high speeds were with the intakes from the fog lights. this time it was with the stock set up. ill tell ya....there is a serious difference at high speeds. the amount of time it takes to get from 80 to 140 with the stock intakes is ....well i feel like i wouldve been at 160 before. the car does feel strong in the 0 to 60 range but there is some serious dissadvantage at high speeds. what a tuff call.....

josh.
 
#13 ·
Howdy all.

I have been collecting and testing for about three months now.

Without Powerchip. With Powerchip. With Powerchip and UDP. With UDP and no POWERCHIP.

With new clutch and UDP but no Powerchip.

And next will be clutch, UDP and Powerchip.

I have been doing quite a few timed runs down the QM.

Facts so far. The Powerchip increases your MPH down the QM.

I have ordered the IATS and next I will test down the QM the IATS and the AA CAI.

If the AA CAI works, then regardless of E.T's the T.S MPH will be higher. No ifs or butts or excuses.

Yoda ran the following MPH. on average over 5 runs.

101 Stock
105 With Powerchip
105 With new clutch No powerchip
(TBA) Clutch & Powerchip. (Expect 107)
(TBA) Clutch Powerchip & AA CAI with IATS. Expect (110)

Time will tell. If the AA CAI makes power, it will show.

I may do an extra test with AA CAI before the Powerchip, to make sure the AA CAI isn't getting the credit for the Powerchip.

Then with both, see if the combo produces a better combined result. mmmmmm

Happy Beasting.:noSMG:
 
#14 ·
MIB said:
Howdy all.

I have been collecting and testing for about three months now.

Without Powerchip. With Powerchip. With Powerchip and UDP. With UDP and no POWERCHIP.

With new clutch and UDP but no Powerchip.

And next will be clutch, UDP and Powerchip.

I have been doing quite a few timed runs down the QM.

Facts so far. The Powerchip increases your MPH down the QM.

I have ordered the IATS and next I will test down the QM the IATS and the AA CAI.

If the AA CAI works, then regardless of E.T's the T.S MPH will be higher. No ifs or butts or excuses.

Yoda ran the following MPH. on average over 5 runs.

101 Stock
105 With Powerchip
105 With new clutch No powerchip
(TBA) Clutch & Powerchip. (Expect 107)
(TBA) Clutch Powerchip & AA CAI with IATS. Expect (110)

Time will tell. If the AA CAI makes power, it will show.

I may do an extra test with AA CAI before the Powerchip, to make sure the AA CAI isn't getting the credit for the Powerchip.

Then with both, see if the combo produces a better combined result. mmmmmm

Happy Beasting.:noSMG:
MIB,

What is IATS? We will just have to call you Mr. Tester from now on.

Mark
 
#15 ·
MAH said:
MIB,

What is IATS? We will just have to call you Mr. Tester from now on.

Mark
Hey MAH, You won't believe you asked that question when I tell you.

Intake Air Temp Sensor relocation kit from UF Motorsport bought from daniel @ Beastpower.ouich

People usually say I'm very Testing.hmmm hiha
 
#16 ·
MIB said:
Hey MAH, You won't believe you asked that question when I tell you.

Intake Air Temp Sensor relocation kit from UF Motorsport bought from daniel @ Beastpower.ouich

People usually say I'm very Testing.hmmm hiha
MIB,

Oh great, next thing you know I will be asking what CAI means!? Sure hope I wasn't the only one with that question.

Thanks,

Mark
 
#17 ·
MAH said:
MIB,

Oh great, next thing you know I will be asking what CAI means!? Sure hope I wasn't the only one with that question.

Thanks,

Mark
hiha Its so obvious once you've seen it. But someone else did ask awhile back, so you miss out on the Homer award.

Actually, I recall someone did ask what CAI was.hiha
 
#18 ·
Mark,
I hope you are running these 1/4 miles at significant altitude. For sea level you should be running 107 equating to 394 Crank Horses given 4025 pounds of curb weight.

In any case just to translate your 1/4 mile gains into crank HP running at sea level....

101 = 331
105 = 372
107 = 393
110 = 428

You really think you can gain almost 100 HP with PC, clutch and air intake? The 40 HP increase for the PC alone seems very rich don't you think?

Claus
 
#19 ·
Het Claus,

Want to see all the QM slips.

I don't make the rules, I just run the times. I have all the slips.

As far as the clutch goes, it has made a sweet difference. I believ that there is less driveline loss with the combined effort of the Clutch,flywheel and P/Plate.

On top of that my stock clutch was slipping at 7,000 KM not miles KM.

So that may account for the low 101 MPH from stock. I'm not making any claims about HP at all. I am collecting QM times witch show in black and white T.S MPH.

MPH does not lie, you can't foll the clock.

I don't know about altitude but I will check it for you.

No I don't think it rich at all. Its a Fact. Your claiming 40, not me, I'm just showing FACTS.

I have a Powerchip run with the stock clutch at 105 MPH. The E.T was a little down. I don't like to use E.T's as a gauge as there are too many variables, but MPH does not lie, and cannot be fooled.

If you have the MPH, you have the Power.

The new clutch setup allows me to launch at what ever revs I want. It will take 9,000 rpm if it were possible to rev the beast that high.

Just a query for you. Elevens ran a Stock Beast at 108+ MPH so is that too rich for you?
 
#20 ·
Tornado Air ? That sounds like a great Idea! I bought 4, not to go in the intakes but to put on my exhausts. I can't wait to install those pupies along with my neon green windshield wiper blades...........................hiha hiha hmmm hmmm :p :p

I can't wait till they get some for my tennis shoes.
 
#21 ·
Mark,
Actually 108 is right at the buttom for a stock M5 at sea level. Like I said, 101 is a low number unless you are at 5000 feet elevation. The gains you had with your mods are huge. The gains in miles per hour might not seem so significant but converted into HP gains they are outrageous. Why spent $30k on a Dinan set-up with headers, throttle bodies and so on for half the gain you had with your mods for a tenth of the money.

One explanation I could see for the huge power gain just with the PC might be that your car was really messed up right from the start. That would also explain your slow 1/4 mile time equateing to only 331 HP at the crank. But what do I know. Just the old saying, if it is to good to be true check it again.

On a more positive note. I really like your methodology. Never assume just run the test with everything you do. That has been my philosophy all the way. Butt-o-meters will always cheat.

Good luck

Claus
 
#22 ·
clauswagner said:


On a more positive note. I really like your methodology. Never assume just run the test with everything you do. That has been my philosophy all the way. Butt-o-meters will always cheat.

Good luck
Claus
Hey Claus,

All I really want to know with each Mod is a Yes or No answer.

Does this Mod increase Power. Which equates to, with this Mod does my MPH improve on the QM.

If the answer is Yes, than I will keep it.

The only thing so far I can conclude is that with the Powerchip, My QM MPH has improved consistantly. I want to be able to say the same thing for the AA CAI, and then the same for the Tubi.

Those times above were an Mean average of 7 runs. What I did was Excluded the best run & excluded the worst run, then added the five remainig together and then dived by 5.

The Best run ever stock witch was excluded from the Mean average was 104.14 13.424.

That was the only one 104 MPH run in stock form at the end of the night at 12 degrees Centigrade. The powerchip has run 105 MPH in 22 centigrade degree heat.

Now the new clutch has run 105.5 13.3 No Powerchip.

I'm not trying to prove or disprove anything. I just want to get higher and higher MPH.

I'm most interested to see if the AA CAI will improve MPH coupled with the IATS. Now I have had some horrible Daytime heat soaked runs at 101. So I believe Heat soak is real. Its the first thing I test every meet. I run as soon as I get to the track with a hot car. It is always the worst run of the night. (Still Day).

What I am hoping to see from the IATS is less of a variance between runs whilst the sun is still out compared to runs at 10pm when it is cool. But if the AA CAI really does have a ram flow effect then I should be posting MPH higher than 105.5.

The track is 81 Feet above sea Level. hmmm

Bluemax gets 114 MPH out of his Beast. I am soo jealous.:crying:

I won't stop adding bits until I see at least 110MPH. Well really I won't stop until I see 115 hiha

I have registered Yoda for this season, so I will have plenty of races. My Flywheel was engineered to launch a 4000lbs vehicle. I still have to get used to it, and feel that the times will improve with this fact by itself.:wroom:
 
#23 ·
Informal runs

MIB,

When do you expect the Tubi to arrive?

Mark
 
#24 ·
Re: Informal runs

MAH said:
MIB,

When do you expect the Tubi to arrive?

Mark
Hey MAH,

Daniel said they will most likely ship tommorrow. I ship to the states in about 19 hrs. So I can wave as it passes me going in the other direction. The first round of the new Drag Street Series is the 12/06/03. So I will have the Tubi and Tubi chip and IATS and AA CAI all on and ready to hand some GT Falcons and HSV Commodores their ***'s. I do that already. But there are some highly moded ones with NOS that give me the occassional bit of trouble.:cheers:
 
#25 ·
MIB,

I look forward to the results of your races. You will have evry mod you need with the possible exception of the headers. Are you still interested in those as well?

Mark
 
#26 ·
MAH said:
MIB,

I look forward to the results of your races. You will have evry mod you need with the possible exception of the headers. Are you still interested in those as well?

Mark
Hey MAH,

I'm back in the land of OZ.kinggf

Yes I am interested in Headers, But I was going to leave them until last. Yoda is RHD, so that counts out Dinan Headers and a few others.

I know of a custom set for the beast here, but I wanted to wait for some feedback on the ones you guys are getting to see which gives the most power. mmmmmm