I agree that they missed the effect of the car moving which will provide more air to a fender intake, but as I interperted their test it was only about how restrictive the different intakes are. The stock sucks cold air using a oem design, the only reason to change this if the airbox and piping is restrictive at higher boost. If it isnt (as AMS showed) then why change to a worse location?

 

This is true putting a fender well intake in front of the intercooler is basically reducing the cooling effect of the core as it is robbing/restricting the amount of air going through to the face of the core!

IMO fender well intakes are a no no and I would only stick with the factory air box ideology but I also have this opinion about cheap oversized cores as they are just soaking pure heat proven by others already by comparing to 997.2 cores!

 

Yes, I have the fenderwell intake and the filter is sitting right above the cooler. I'm sure it is blocking some fenderwell flow but it's a big 5" cooler! Filters definitely get much dirtier too, a lot faster. Definitely not the greatest design for track use where a lot heat build up would occur but for flow at high boost (2 bar) and some 60-130 pulls, it probably works the best.

PS Thanks Nick for the PM.

 

Yes and this is another problem you have too, is that you are using a big 5" cooler!

So you are getting a huge pressure drop for one and you have a lot more metal to soak a lot more heat combined with a fender well intake restricting the air flow to cool the cooler so what was the point IMO

You are welcome for the PM bro anytime!

 

I don't think 5" is a problem. I had them on my VTGs which flow a lot less air and was still able to pull 6.9s 60-130. The 5 incher has very low pressure drop. I know Todd measured them but I can't remember the number off the top of my head but it was very impressive. When you are starting to flow massive amounts of air at very high boost you really need a free flowing IC. I agree that there are probably more efficient thermal ICs out there like the .2s but I'm way beyond that airflow now.

 

It would nice to see the test he done in measuring the pressure drop for the 5" IC.

 

I was informed that the pressure drop is less than 0.25 psi at 900 cfm. Test methodology was not disclosed.

 

years ago I found the BEll 4.5s and made my own ICs.. made 870whp on my 996 and ran 9s ( only second car at the time in the world) and still the only non tuner car to run 9s...... also the car ran record mid 4s 60 to 130s in hot humid 90deg temps in summer(2007)..... NO meth... just race gas... I wonder what the .2s would do... I also have the intake piping above ICs..
currently I have 6" ICs.. the car did over 1000 whp, trapped a record 121.41 mph in 1/8th and a 153.93 mph top speed.... now you tell me if LAG is introduced with the 6" ICs.. or better yet pressure drop... thats almost 122mph in 1/8th mile... ( stock ECU.. no launch control no electronic gimmicks )...
Now this may not be for road course but it was never intended to be...
So just to add a little to the mix, ask how many guys are running 9s and or 4 sec. 60to 130s in XXX ICs... real world numbers not just scientific data and I bet its usually on big high quality bar n plate cores...
my slip

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AMS has built some fast Jap cars. They don't know anything about Porsche cars.

They're expert marketers but they didn't know enough about Porsche, not to claim

700 hp on 16 billet turbos lol. They claim 900 hp on a28s!!! Nuff said.

(now watch some bozo that spent a ton of money with them, come to their defense lol)


I only have anecdotal reporting. Nothing scientific, but I have performed back to
back 4.8 second 60-130 mph runs on Markskis 3.5 bell core intercoolers in the
Porsche stock positions. I have done 4 in a row in less than 30 minutes total time,
with less than 5/100ths deviation. In all fairness, that's running e85, so things
are a little cooler but the proof, as they say,is in the pudding.

 

Hi Markski.

I won't forget the hardwork you have put in to you car which is very inspiring ofcourse and the times you have achieved in the quarter etc... etc... Well done.

What I do wonder is if you did run GT2 RS IC's or something better would your times have improved? You/we would like to think so?

What would be good is if you sent over an intercooler to test alongside the other IC's as you never know maybe your product will anhialate the opposition?

Who knows? But its worth a shot as I think this test will put the debate to rest I hope.

I also encourage other AM TUNERS to do the same if they really have that much faith in their product as this is the time to compair apples to apples for a small fee of course, but isn't it worth it to prove to your customers what you are really selling them and not just give them glossy pics and clever worded paragraphs?

If I get enough IC's I can bargain with this company to drop the price and I'm willing to postpone the test till everyone has sent their's.

Remember there is no biased opinions and it is a fully independent test. So whoever wins wins and imagine what it could do for your product if you do!

Just a thought

 

I love that word haven't heard it in years!

 

What AMS and others claim in the way of R & D is hardly true R & D.

I applaud your efforts to discover these things for yourself but make sure

and get REAL world feedback form people that have the product on their

cars as well.

btw, Great thread and a very cool read! Thanks Nick.

 

Ofcourse I agree on real world testing as well as scientific data. But without the scientific data how would you know what is worth testing and what isn't in the first place?

You are welcome Randy any time bro!

 

I hope you didn't misunderstand! Scientific methodology is the reason we
are communicating in this thread! I analyze all of our company data and it
maps out how we do business tomorrow.

Liars can figure, but figures never lie.

Back in the day, I was an audiophile. A lot of the Japanese audio looked
really good on paper. Matter of fact, a great deal of it looked better than
the British made, B & W audio equipment. However, all you had to do
was audition the B & W against the best Japan had to offer and the B & W
blew it out of the water.

 

I'm not a theoretician, I check all purely for my own.
My steps with IC:
1. I was having one good IC 5" with fenderwell intakes, filters on IC, my temps was afwull, up to 120C at high speed runs, about 320km/h with 25C outside, ignition retard was 10 degrees, car was good until 200 km/h, after it was dead because of overheat. 120C was max, but usually it was around 100C
2. Same IC, but i have made stock location intake, pipes was 2" and not very good quallity, they was corrugated
Anyway temp was droped and maximum that i saw was 100C at same 25C outside
Medium was 80C, much better.
3. I have set AMS IC, made better 3" aluminium intake system and my temps was dropped hard, maximum that i saw was 72C at 360km/h, before 280km/h temp only 50C max, when i shifted to 5th gear temp begin to increase. Outside temp 18C

Same turbos, GTX3582 0.63 AR and 30+ psi of boost. Also i am not using ice or watter on IC, only air flow.